Revert "Removed module power-sound"

This reverts commit 11930729a62c4b97d862d08e96208f92f4a99c5e.

pom.xml

@@ -25,12 +25,12 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
     <parent>
         <groupId>org.nanoboot.essential</groupId>
         <artifactId>nanoboot-parent</artifactId>
-        <version>0.1.0</version>
+        <version>0.1.0-SNAPSHOT</version>
     </parent>
 
     <groupId>org.nanoboot.powerframework</groupId>
     <artifactId>power-framework</artifactId>
-    <version>2.0.0</version>
+    <version>2.0.0-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <name>Power Framework</name>
@@ -54,15 +54,21 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
         <module>power-log</module>
         <module>power-io</module>
         <module>power-web</module>
+		
+        <module>power-wiki</module>
+        <module>power-sound</module>
 
+        <module>power-stat</module>
         <module>power-sql</module>
         <module>power-db</module>
         <module>power-persistence</module>
+        <module>power-svg</module>
 
         <module>power-view</module>
         <module>power-xml</module>
         <module>power-reflection</module>
         <module>power-mail</module>
+        <module>power-blockchain</module>
 
         <module>power-security</module>
         <!-- TODO:
@@ -72,7 +78,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
     </modules>
 
     <properties>
-        <power.version>2.0.0</power.version>
+        <power.version>2.0.0-SNAPSHOT</power.version>
         <checkstyle.skip>true</checkstyle.skip><!-- TODO: make false-->
     </properties>
 

power-blockchain/pom.xml

@@ -0,0 +1,122 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ power-framework: Java library with many purposes of usage.
+ Copyright (C) 2016-2022 the original author or authors.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation;
+ version 2.1 of the License only.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ -->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.nanoboot.powerframework</groupId>
+        <artifactId>power-framework</artifactId>
+        <version>2.0.0-SNAPSHOT</version>
+    </parent>
+    
+    <groupId>org.nanoboot.powerframework</groupId>
+    <artifactId>power-blockchain</artifactId>
+    <packaging>jar</packaging>
+
+    <name>Power Blockchain</name>
+    <description>Blockchain library</description>
+
+    <build>
+
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-assembly-plugin</artifactId>
+                <version>3.3.0</version>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <mainClass>org.nanoboot.powerframework.blockchain.orig.core.Main</mainClass>
+                        </manifest>
+                    </archive>
+                    <descriptorRefs>
+                        <descriptorRef>jar-with-dependencies</descriptorRef>
+                    </descriptorRefs>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>make-assembly</id> <!-- this is used for inheritance merges -->
+                        <phase>package</phase> <!-- bind to the packaging phase -->
+                        <goals>
+                            <goal>single</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <mainClass>org.nanoboot.powerframework.blockchain.orig.core.Main</mainClass>
+                        </manifest>
+                    </archive>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <!-- Power dependencies -->
+        <dependency>
+            <groupId>org.nanoboot.powerframework</groupId>
+            <artifactId>power-core</artifactId>
+            <version>${power.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.nanoboot.powerframework</groupId>
+            <artifactId>power-time</artifactId>
+            <version>${power.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.nanoboot.powerframework</groupId>
+            <artifactId>power-json</artifactId>
+            <version>${power.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.nanoboot.powerframework</groupId>
+            <artifactId>power-random</artifactId>
+            <version>${power.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.nanoboot.powerframework</groupId>
+            <artifactId>power-security</artifactId>
+            <version>${power.version}</version>
+        </dependency>
+
+        <!-- Other dependencies -->
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.10</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+
+</project>

power-blockchain/src/main/java/module-info.java

@@ -0,0 +1,34 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+module powerframework.blockchain {
+    requires lombok;
+    requires powerframework.core;
+    requires powerframework.time;
+    requires powerframework.json;
+    requires powerframework.random;
+    requires powerframework.security;
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/api/BlockDeserializer.java

@@ -0,0 +1,33 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.api;
+
+import org.nanoboot.powerframework.blockchain.core.Block;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public interface BlockDeserializer {
+    Block deserialize(String serializedBlock);
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/api/BlockSerializer.java

@@ -0,0 +1,33 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.api;
+
+import org.nanoboot.powerframework.blockchain.core.Block;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public interface BlockSerializer {
+    String serialize(Block block);
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/core/Block.java

@@ -0,0 +1,132 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.core;
+
+import org.nanoboot.powerframework.blockchain.api.BlockSerializer;
+import org.nanoboot.powerframework.json.JsonObject;
+import org.nanoboot.powerframework.json.JsonObjectSerializable;
+import org.nanoboot.powerframework.security.hash.api.HashCalculator;
+import org.nanoboot.powerframework.time.moment.UniversalDateTime;
+import lombok.Getter;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public class Block implements JsonObjectSerializable {
+    private static final String BLOCKCHAIN_PROTOCOL = "blockchainProtocol";
+
+    private static final String HEIGHT = "height";
+
+    private static final String PREVIOUS_HASH = "previousHash";
+    private static final String TIMESTAMP = "timestamp";
+    private static final String DIFFICULTY = "difficulty";
+    private static final String DATA = "data";
+    private static final String NONCE = "nonce";
+
+    @Getter
+    private final BlockchainProtocol blockchainProtocol;
+
+    @Getter
+    private final long height;
+    @Getter
+    private final String previousHash;
+    @Getter
+    private final String timeStamp;
+    @Getter
+    private final String difficultyTarget;
+    @Getter
+    private final byte[] data;
+
+    @Getter
+    private long nonce;
+
+    //
+    @Getter
+    private String hash = null;
+
+    //Block Constructor.
+    public Block(BlockchainProtocol blockchainProtocol,
+                 long height,
+                 String previousHash,
+                 String difficultyTarget,
+                 byte[] data) {
+        this.blockchainProtocol=blockchainProtocol;
+        this.height = height;
+        this.previousHash = previousHash;
+        this.timeStamp = UniversalDateTime.now().toString();
+        this.difficultyTarget = difficultyTarget;
+        this.data = data;
+    }
+
+    //Calculate new hash based on blocks contents
+    public String calculateHash(HashCalculator hashCalculator, BlockSerializer blockSerializer) {
+        String serializedBlock = blockSerializer.serialize(this);
+        String calculatedhash = hashCalculator.hash(serializedBlock);
+        return calculatedhash;
+    }
+
+    //Increases nonce value until hash target is reached.
+    public void mineBlock(HashCalculator hashCalculator, BlockSerializer blockSerializer) {
+        String target = this.difficultyTarget;
+
+        for (long i = 0; i <= Long.MAX_VALUE; i++) {
+            this.nonce = i;
+            if (nonce == Integer.MAX_VALUE) {
+                throw new BlockChainException("Nonce was not found.");
+            }
+            if (nonce % 1000000 == 0) {
+                System.out.println("Nonce # " + nonce);
+            }
+
+
+
+            String hash = calculateHash(hashCalculator, blockSerializer);
+
+            if (hashCalculator.compareHexNumbers(hash, this.getDifficultyTarget()) <= 0) {
+                System.out.println("Found nonce: " + nonce + " A new block was just mined: " + getHash() + "\n" /*+ block.toJsonObject().toPrettyString()*/);
+                System.out.println("Block Mined!!! : " + hash);
+                break;
+            }
+        }
+
+    }
+
+    @Override
+    public JsonObject toJsonObject() {
+
+        JsonObject jo = new JsonObject();
+
+        jo.add(BLOCKCHAIN_PROTOCOL, blockchainProtocol.toJsonObject());
+
+        jo.add(HEIGHT, height);
+
+        jo.add(PREVIOUS_HASH, previousHash);
+        jo.add(TIMESTAMP, timeStamp);
+        jo.add(DIFFICULTY, difficultyTarget);
+        jo.add(DATA, new String(data));
+        jo.add(NONCE, nonce);
+
+        return jo;
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/core/BlockChainException.java

@@ -0,0 +1,35 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.core;
+
+import org.nanoboot.powerframework.core.PowerException;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public class BlockChainException extends PowerException {
+    public BlockChainException(String msg) {
+        super(msg);
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/core/BlockchainEngine.java

@@ -0,0 +1,40 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.core;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.ArrayList;
+import java.util.List;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+@AllArgsConstructor
+public class BlockchainEngine {
+    @Getter
+    private final String protocolName;
+    private List<BlockchainEngineVersion> blockchainEngineVersionList = new ArrayList<>();
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/core/BlockchainEngineVersion.java

@@ -0,0 +1,54 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.core;
+
+import org.nanoboot.powerframework.blockchain.api.BlockSerializer;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+@AllArgsConstructor
+public class BlockchainEngineVersion {
+    @Getter
+    private final String version;
+    @Getter
+    private final String hashCalculatorName;
+    @Getter
+    private final String targetDifficulty;
+    @Getter
+    private final BlockSerializer blockSerializer;
+    @Getter
+    private final long validFromBlock;
+    @Getter
+    private final long validUntilBlock;
+
+    public String getMayorVersion() {
+        return version.split(("\\."))[0];
+    }
+    public String getMinorVersion() {
+        return version.split(("\\."))[1];
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/core/BlockchainProtocol.java

@@ -0,0 +1,56 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.core;
+
+import org.nanoboot.powerframework.json.JsonObject;
+import org.nanoboot.powerframework.json.JsonObjectSerializable;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+@AllArgsConstructor
+public class BlockchainProtocol implements JsonObjectSerializable {
+    private static final String PROTOCOL_NAME = "protocolName";
+    private static final String PROTOCOL_MAYOR_VERSION = "protocolMayorVersion";
+    private static final String PROTOCOL_MINOR_VERSION = "protocolMinorVersion";
+    @Getter
+    private final String protocolName;
+    @Getter
+    private final int protocolMayorVersion;
+    @Getter
+    private final int protocolMinorVersion;
+    @Override
+    public JsonObject toJsonObject() {
+
+        JsonObject jo = new JsonObject();
+
+        jo.add(PROTOCOL_NAME, protocolName);
+        jo.add(PROTOCOL_MAYOR_VERSION, protocolMayorVersion);
+        jo.add(PROTOCOL_MINOR_VERSION, protocolMinorVersion);
+
+        return jo;
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/impl/JsonBlockSerializer.java

@@ -0,0 +1,40 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.impl;
+
+import org.nanoboot.powerframework.blockchain.api.BlockSerializer;
+import org.nanoboot.powerframework.blockchain.core.Block;
+import org.nanoboot.powerframework.json.JsonObject;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public class JsonBlockSerializer implements BlockSerializer {
+
+    @Override
+    public String serialize(Block block) {
+        JsonObject jsonObject = block.toJsonObject();
+        return jsonObject.toMinimalString();
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/impl/StringSerializer.java

@@ -0,0 +1,45 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.impl;
+
+import org.nanoboot.powerframework.blockchain.api.BlockSerializer;
+import org.nanoboot.powerframework.blockchain.core.Block;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+public class StringSerializer implements BlockSerializer {
+
+    public static final String SEPARATOR = "::";
+
+    @Override
+    public String serialize(Block block) {
+        return block.getBlockchainProtocol().toString() + SEPARATOR +
+                block.getHeight() + SEPARATOR +
+                block.getPreviousHash() + SEPARATOR +
+                block.getTimeStamp() + SEPARATOR +
+                block.getDifficultyTarget() + SEPARATOR +
+                new String(block.getData()) + SEPARATOR +
+                block.getNonce();
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/api/BlockData.java

@@ -0,0 +1,31 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.api;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public interface BlockData {
+    String convertToString();
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/api/BlockDeserializer.java

@@ -0,0 +1,33 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.api;
+
+import org.nanoboot.powerframework.blockchain.orig.base.Block;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public interface BlockDeserializer {
+    Block deserialize(String serializedBlock);
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/api/BlockMiner.java

@@ -0,0 +1,35 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.api;
+
+import org.nanoboot.powerframework.blockchain.orig.base.Block;
+import org.nanoboot.powerframework.blockchain.orig.base.BlockFragment;
+import org.nanoboot.powerframework.blockchain.orig.base.BlockType;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public interface BlockMiner {
+    Block mine(BlockFragment blockFragment, BlockType blockType);
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/api/BlockSerializer.java

@@ -0,0 +1,33 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.api;
+
+import org.nanoboot.powerframework.blockchain.orig.base.Block;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public interface BlockSerializer {
+    String serialize(Block block);
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/api/BlockValidator.java

@@ -0,0 +1,35 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.api;
+
+import org.nanoboot.powerframework.blockchain.orig.base.Block;
+import org.nanoboot.powerframework.blockchain.orig.base.BlockType;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public interface BlockValidator {
+    BlockType getBlockType();
+    void validate(Block block);
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/base/Block.java

@@ -0,0 +1,117 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.base;
+
+import org.nanoboot.powerframework.blockchain.orig.api.BlockData;
+import org.nanoboot.powerframework.blockchain.core.BlockChainException;
+import org.nanoboot.powerframework.json.JsonObject;
+import org.nanoboot.powerframework.json.JsonObjectSerializable;
+import lombok.Getter;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public class Block implements JsonObjectSerializable {
+    public static final String BLOCK_TYPE_ID = "blockTypeId";
+    public static final String BLOCK_HEADER = "blockHeader";
+    public static final String BLOCK_DATA = "blockData";
+    public static final String NONCE = "nonce";
+
+    @Getter
+    private BlockHeader blockHeader;
+
+    @Getter
+    private BlockData blockData;
+
+    private long nonce;
+
+    @Getter
+    private String hash;
+    @Getter
+    private boolean locked = false;
+
+    @Getter
+    private BlockType internalBlockType;
+
+    public Block(BlockHeader blockHeader, JsonObject additionBlockHeader, BlockData blockData) {
+        this.blockHeader = blockHeader;
+
+        this.blockData = blockData;
+    }
+
+    public void injectBlockType(BlockType blockType) {
+        this.internalBlockType = blockType;
+    }
+
+    public String calculateHashTest(long nonce) {
+        this.nonce = nonce;
+        String hashedSerializedBlock = internalCalculateHash();
+        this.nonce = 0;//todo
+        return hashedSerializedBlock;
+    }
+
+    private String internalCalculateHash() {
+        if (nonce == 0) {
+            throw new BlockChainException("Nonce cannot be zero.");
+        }
+        if (locked) {
+            throw new BlockChainException("This block is already locked. Cannot set nonce and calculate nonce.");
+        }
+
+        if (internalBlockType == null) {
+            throw new BlockChainException("internalBlockType was not injected.");
+        }
+        String serializedBlock = this.internalBlockType.getBlockSerializer().serialize(this);
+
+        String hashedSerializedBlock = this.internalBlockType.getHashCalculator().hash(serializedBlock);
+
+        //System.out.println("internalCalculateHash - hash for nonce " + nonce + " = " + hashedSerializedBlock);
+        return hashedSerializedBlock;
+    }
+
+    public void lock(long nonce) {
+        this.nonce = nonce;
+        String hashedSerializedBlock = internalCalculateHash();
+        this.hash = hashedSerializedBlock;
+
+        this.locked = true;
+    }
+
+    @Override
+    public JsonObject toJsonObject() {
+        if (nonce == 0) {
+            throw new BlockChainException("Nonce cannot be zero, if json object is created from this block instance.");
+        }
+        if (internalBlockType == null) {
+            throw new BlockChainException("internalBlockType was not injected.");
+        }
+        JsonObject jo = new JsonObject();
+        jo.add(BLOCK_TYPE_ID, internalBlockType.getBlockTypeId());
+        jo.add(BLOCK_HEADER, blockHeader.toJsonObject());
+
+        jo.add(BLOCK_DATA, blockData.convertToString());
+        jo.add(NONCE, nonce);
+        return jo;
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/base/BlockChain.java

@@ -0,0 +1,100 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.base;
+
+import org.nanoboot.powerframework.blockchain.core.BlockChainException;
+
+import java.util.ArrayList;
+import java.util.List;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public class BlockChain {
+    private String blockChainEngineName;
+    private List<Block> blocks = new ArrayList<>();
+
+    public int getTotalHeight() {
+        return blocks.size() - 1;
+    }
+
+    public boolean isEmpty() {
+        return blocks.isEmpty();
+    }
+
+    public Block getGenesisBlock() {
+        if (isEmpty()) {
+            return null;
+        }
+        return getBlock(0);
+    }
+
+    public Block getLastBlock() {
+        if (isEmpty()) {
+            return null;
+        }
+        return getBlock(blocks.size() - 1);
+    }
+
+    public List<Block> getLastXBlocks(int xCount) {
+        List<Block> result = new ArrayList<>();
+
+        if (isEmpty()) {
+            return result;
+        }
+        if (xCount <= blocks.size()) {
+            for (Block b : blocks) {
+                result.add(b);
+            }
+            return result;
+        }
+        for (int i = blocks.size() - xCount; i <= (blocks.size() - 1); i++) {
+            result.add(blocks.get(i));
+        }
+        return result;
+    }
+
+    public void addBlock(Block block) {
+        if (!block.isLocked()) {
+            throw new BlockChainException("Block is not locked. It cannot be added");
+        }
+        if (blocks.isEmpty() && block.getBlockHeader().getHeight() != 0) {
+            throw new BlockChainException("New block is a genesis block, but its height is not zero.");
+        }
+        Block lastBlock = getLastBlock();
+        String previousBlockHash = lastBlock == null ? "0" : lastBlock.getHash();
+
+        if (!block.getBlockHeader().getPreviousHash().equals(previousBlockHash)) {
+            throw new BlockChainException("Block previous hash is not equal to the hash of the previous block. It cannot be added to the blockchain.");
+        }
+        blocks.add(block);
+    }
+
+    public Block getBlock(int blockHeight) {
+        if (blockHeight >= blocks.size()) {
+            throw new BlockChainException("There is no block with height " + blockHeight);
+        }
+        return blocks.get(blockHeight);
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/base/BlockChainEngine.java

@@ -0,0 +1,55 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.base;
+
+import org.nanoboot.powerframework.blockchain.core.BlockChainException;
+import lombok.AllArgsConstructor;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+@AllArgsConstructor
+public abstract class BlockChainEngine {
+    private String blockChainEngineName;
+    protected BlockChain blockChain;
+    protected BlockTypeVersionList blockTypeVersionList;
+
+    public void addData(String data) {
+        BlockFragment blockFragment = createNewBlockFragment(data);
+        BlockType blockType = blockTypeVersionList.findBlockType(blockFragment.getBlockHeader().getBlockTypeId());
+        if (blockType == null) {
+            throw new BlockChainException("blockType " + blockFragment.getBlockHeader().getBlockTypeId() + " was not found.");
+        }
+
+        Block block = blockType.getBlockMiner().mine(blockFragment, blockType);
+        addBlock(block);
+    }
+
+    public abstract BlockFragment createNewBlockFragment(String data);
+
+    public void addBlock(Block newBlock) {
+        blockChain.addBlock(newBlock);
+    }
+
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/base/BlockFragment.java

@@ -0,0 +1,42 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.base;
+
+import org.nanoboot.powerframework.blockchain.orig.api.BlockData;
+import org.nanoboot.powerframework.json.JsonObject;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+@AllArgsConstructor
+public class BlockFragment {
+    @Getter
+    private BlockHeader blockHeader;
+
+    @Getter
+    private BlockData blockData;
+
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/base/BlockHeader.java

@@ -0,0 +1,60 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.base;
+
+import org.nanoboot.powerframework.json.JsonObject;
+import org.nanoboot.powerframework.json.JsonObjectSerializable;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+@AllArgsConstructor
+public class BlockHeader implements JsonObjectSerializable {
+    public static final String BLOCK_TYPE_ID = "blockTypeId";
+    public static final String HEIGHT = "height";
+    public static final String TIME_STAMP = "timeStamp";
+    public static final String PREVIOUS_HASH = "previousHash";
+    @Getter
+    private String blockTypeId;
+    @Getter
+    private int height;
+    @Getter
+    private long timeStamp;
+    @Getter
+    private String previousHash;
+    @Getter
+    private String difficulty;
+
+    public JsonObject toJsonObject() {
+        JsonObject jo = new JsonObject();
+        jo.add(BLOCK_TYPE_ID, blockTypeId);
+        jo.add(HEIGHT, height);
+        jo.add(TIME_STAMP, timeStamp);
+        jo.add(PREVIOUS_HASH, previousHash);
+        return jo;
+    }
+
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/base/BlockType.java

@@ -0,0 +1,55 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.base;
+
+import org.nanoboot.powerframework.blockchain.orig.api.BlockDeserializer;
+import org.nanoboot.powerframework.blockchain.orig.api.BlockMiner;
+import org.nanoboot.powerframework.blockchain.orig.api.BlockSerializer;
+import org.nanoboot.powerframework.security.hash.api.HashCalculator;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+@AllArgsConstructor
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public class BlockType {
+    @Getter
+    private String type;
+    @Getter
+    private int mayorVersion;
+    @Getter
+    private int minorVersion;
+    @Getter
+    private HashCalculator hashCalculator;
+    @Getter
+    private BlockSerializer blockSerializer;
+    @Getter
+    private BlockDeserializer blockDeserializer;
+    @Getter
+    BlockMiner blockMiner;
+    public String getBlockTypeId() {
+        return type + ":" + mayorVersion + ":" + minorVersion;
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/base/BlockTypeVersionList.java

@@ -0,0 +1,47 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.base;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public class BlockTypeVersionList {
+    private Map<String, BlockType> blockTypes;
+
+    public BlockTypeVersionList(List<BlockType> blockTypesList) {
+        blockTypes = new HashMap<>();
+        for (BlockType bt : blockTypesList) {
+            blockTypes.put(bt.getBlockTypeId(), bt);
+        }
+    }
+
+    public BlockType findBlockType(String blockTypeId) {
+        return blockTypes.get(blockTypeId);
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/cash/Transaction.java

@@ -0,0 +1,29 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.cash;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+public class Transaction {
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/cash/TransactionValidator.java

@@ -0,0 +1,29 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.cash;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+public class TransactionValidator {
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/cash/Wallet.java

@@ -0,0 +1,29 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.cash;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+public class Wallet {
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/core/Main.java

@@ -0,0 +1,48 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.core;
+
+import org.nanoboot.powerframework.blockchain.orig.base.BlockChain;
+import org.nanoboot.powerframework.blockchain.orig.impl.TestCash_BlockChainEngine;
+import org.nanoboot.powerframework.random.generators.linearcongruent.combined.w5.W5RandomGenerator;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public class Main {
+    public static void main(String[] args) {
+//        HashCalculator.main(null);
+//
+//        if(true) return;
+        BlockChain blockChain = new BlockChain();
+        TestCash_BlockChainEngine bce = new TestCash_BlockChainEngine(blockChain);
+        bce.addData("ahoj");
+        bce.addData("pavle");
+        bce.addData("leo");
+        for(int i =0;i<100000000;i++){
+            bce.addData(W5RandomGenerator.getStaticInstance().nextText(8));
+        }
+
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/impl/JsonBlockSerializer.java

@@ -0,0 +1,41 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.impl;
+
+import org.nanoboot.powerframework.blockchain.orig.api.BlockSerializer;
+import org.nanoboot.powerframework.blockchain.orig.base.Block;
+import org.nanoboot.powerframework.json.JsonObject;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public class JsonBlockSerializer implements BlockSerializer {
+
+    @Override
+    public String serialize(Block block) {
+        JsonObject jsonObject = block.toJsonObject();
+        //System.out.println(jsonObject.toMinimalString());
+        return jsonObject.toMinimalString();
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/impl/SimpleBlockData.java

@@ -0,0 +1,40 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.impl;
+
+import org.nanoboot.powerframework.blockchain.orig.api.BlockData;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+@AllArgsConstructor
+public class SimpleBlockData implements BlockData {
+    @Getter
+    private final String string;
+    @Override
+    public String convertToString() {
+        return string;
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/impl/TestCash_1_0_Block.java

@@ -0,0 +1,36 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.impl;
+
+import org.nanoboot.powerframework.blockchain.orig.api.BlockData;
+import org.nanoboot.powerframework.blockchain.orig.base.BlockHeader;
+import org.nanoboot.powerframework.blockchain.orig.base.Block;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+public class TestCash_1_0_Block extends Block {
+    public TestCash_1_0_Block(BlockHeader blockHeader, BlockData blockData) {
+        super(blockHeader, null, blockData);
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/impl/TestCash_1_0_BlockMiner.java

@@ -0,0 +1,95 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.impl;
+
+import org.nanoboot.powerframework.blockchain.orig.api.BlockMiner;
+import org.nanoboot.powerframework.blockchain.orig.base.Block;
+import org.nanoboot.powerframework.blockchain.orig.base.BlockFragment;
+import org.nanoboot.powerframework.blockchain.orig.base.BlockType;
+import org.nanoboot.powerframework.blockchain.core.BlockChainException;
+import org.nanoboot.powerframework.security.hash.api.HashCalculator;
+import org.nanoboot.powerframework.time.duration.Duration;
+import org.nanoboot.powerframework.time.duration.StopWatch;
+import org.nanoboot.powerframework.time.utils.TimeUnit;
+
+import java.util.ArrayList;
+import java.util.List;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+public class TestCash_1_0_BlockMiner implements BlockMiner {
+    public static List<Integer> lastFiveBlockMiningTimesInMilliseconds = new ArrayList<>();
+
+    @Override
+    public Block mine(BlockFragment blockFragment, BlockType blockType) {
+
+        TestCash_1_0_Block block = new TestCash_1_0_Block(blockFragment.getBlockHeader(), blockFragment.getBlockData());
+        block.injectBlockType(blockType);
+
+        ////System.out.println("Starting mining block # " + block.getBlockHeader().getHeight());
+        //System.out.println("Note: One block should be mined in 1 minute, but the last time was " + countOfSecondsToMineLastBlock + " second(s).");
+        //System.out.println("Starting mining block # " + block.getBlockHeader().getHeight());
+        StopWatch sw = new StopWatch();
+
+        //System.out.println("start: " + UniversalDateTime.now().toString());
+        sw.start();
+
+        ////System.out.println("Searching hash equal or less than " + block.getBlockHeader().getDifficulty());
+        for (long nonce = 1; nonce <= Long.MAX_VALUE; nonce++) {
+            if (nonce == Integer.MAX_VALUE) {
+                throw new BlockChainException("Nonce was not found.");
+            }
+            if (nonce % 1000000 == 0) {
+                System.out.println("Nonce # " + nonce);
+            }
+
+
+            HashCalculator hashCalculator = block.getInternalBlockType().getHashCalculator();
+            String hash = block.calculateHashTest(nonce);
+            //System.err.println("hashCalculator.compareHexNumbers("+hash+"+, block.getBlockHeader().getDifficulty()="+block.getBlockHeader().getDifficulty()+")="+hashCalculator.compareHexNumbers(hash, block.getBlockHeader().getDifficulty()));
+            if (hashCalculator.compareHexNumbers(hash, block.getBlockHeader().getDifficulty()) <= 0) {
+
+                //System.err.println("hashCalculator.compareHexNumbers("+hash+"+, block.getBlockHeader().getDifficulty()="+block.getBlockHeader().getDifficulty()+")="+hashCalculator.compareHexNumbers(hash, block.getBlockHeader().getDifficulty()));
+                block.lock(nonce);
+                ////System.out.println("Found nonce: " + nonce + " A new block was just mined: " + block.getHash() + "\n" /*+ block.toJsonObject().toPrettyString()*/);
+
+                break;
+            }
+        }
+
+        //System.out.println("end: " + UniversalDateTime.now().toString());
+        sw.stop();
+        Duration lastDuration = sw.getCurrentDuration();
+        if (lastFiveBlockMiningTimesInMilliseconds.size() == 1000) {
+            lastFiveBlockMiningTimesInMilliseconds.remove(0);
+        }
+        lastFiveBlockMiningTimesInMilliseconds.add((int) lastDuration.toTotal(TimeUnit.MILLISECOND));
+        //countOfSecondsToMineLastBlock = (int) lastDuration.toTotal(TimeUnit.SECOND);
+        if (block.getBlockHeader().getHeight() % 100 == 0)
+            System.out.println("Mining block " + block.getBlockHeader().getHeight() + " + took " + lastDuration.toString() + " .");
+        return block;
+    }
+
+
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/impl/TestCash_1_0_BlockType.java

@@ -0,0 +1,39 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.impl;
+
+import org.nanoboot.powerframework.blockchain.orig.base.BlockType;
+import org.nanoboot.powerframework.security.hash.locator.HashCalculatorLocator;
+import org.nanoboot.powerframework.security.hash.locator.HashImpl;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+public class TestCash_1_0_BlockType extends BlockType {
+private static final String TYPE = "test_cash";
+private static final int MAYOR_VERSION = 1;
+private static final int MINOR_VERSION = 0;
+    public TestCash_1_0_BlockType() {
+        super(TYPE, MAYOR_VERSION, MINOR_VERSION, HashCalculatorLocator.locate(HashImpl.SHA_256), new JsonBlockSerializer(), null, new TestCash_1_0_BlockMiner());
+    }
+}

power-blockchain/src/main/java/org/nanoboot/powerframework/blockchain/orig/impl/TestCash_BlockChainEngine.java

@@ -0,0 +1,136 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.blockchain.orig.impl;
+
+import org.nanoboot.powerframework.blockchain.orig.base.*;
+import org.nanoboot.powerframework.security.hash.api.HashCalculator;
+import org.nanoboot.powerframework.time.duration.Duration;
+import org.nanoboot.powerframework.time.moment.UniversalDateTime;
+import org.nanoboot.powerframework.time.utils.TimeUnit;
+
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.util.List;
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+public class TestCash_BlockChainEngine extends BlockChainEngine {
+
+    public static final String TEST_CASH = "TestCash";
+    public static final int COUNT_OF_MILLISECONDS_TO_MINE_A_BLOCK = 10;
+    //public static final String DEFAULT_DIFFICULTY = "0fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff";
+    public static final String DEFAULT_DIFFICULTY = "00184f329993e8d38cd0a31969b54367b4fc5af6ed86d827c1343dbf8b66a4a5";
+
+    public static float DIFFICULTY_PERCENT_CHANGE = (float) 1;
+
+    public TestCash_BlockChainEngine(BlockChain blockChain) {
+        super(TEST_CASH, blockChain, new BlockTypeVersionList(List.of(new TestCash_1_0_BlockType())));
+    }
+
+    @Override
+    public BlockFragment createNewBlockFragment(String data) {
+        Block lastBlock = blockChain.getLastBlock();
+        int newBlockHeight = lastBlock == null ? 0 : lastBlock.getBlockHeader().getHeight() + 1;
+        long newTimeStamp = UniversalDateTime.now().toLong();
+        String previousBlockHash = lastBlock == null ? "0" : lastBlock.getHash();
+        String oldDifficulty = lastBlock == null ? DEFAULT_DIFFICULTY : lastBlock.getBlockHeader().getDifficulty();
+        String newDifficulty = oldDifficulty;
+
+        int newDifficultyPeriod = 1000;
+        if (lastBlock != null && newBlockHeight % newDifficultyPeriod == 0) {
+
+            List<Block> lastBlocks = blockChain.getLastXBlocks(newDifficultyPeriod);
+            int lastBlocksCount = lastBlocks.size();
+            Block blockStart = lastBlocks.get(0);
+            Block blockEnd = lastBlocks.get(lastBlocks.size() - 1);
+            long moment1 = blockStart.getBlockHeader().getTimeStamp();
+            long moment2 = blockEnd.getBlockHeader().getTimeStamp();
+            UniversalDateTime udt1 = new UniversalDateTime(moment1);
+            UniversalDateTime udt2 = new UniversalDateTime(moment2);
+            Duration duration = new org.nanoboot.powerframework.time.duration.Period(udt1, udt2).getDuration();
+            duration.toTotal(TimeUnit.SECOND);
+            double averageCountOfMillisecondsToMineABlockForTenLastBlocks = (duration.toTotal(TimeUnit.SECOND) / (lastBlocksCount - 1));
+
+            int countX = 0;
+            int sum = 0;
+            for (Integer i : TestCash_1_0_BlockMiner.lastFiveBlockMiningTimesInMilliseconds) {
+                sum = sum + i;
+                countX = countX + 1;
+            }
+            System.out.println("sumInSeconds="+((double)sum));
+
+            averageCountOfMillisecondsToMineABlockForTenLastBlocks =  ((((double) sum) / ((double) countX)) /*/ 1*/);
+            System.out.println("averageCountOfMillisecondsToMineABlockForTenLastBlocks=" + averageCountOfMillisecondsToMineABlockForTenLastBlocks);
+            boolean plus = false;
+            if(((int)Math.round(averageCountOfMillisecondsToMineABlockForTenLastBlocks))==COUNT_OF_MILLISECONDS_TO_MINE_A_BLOCK) {
+                DIFFICULTY_PERCENT_CHANGE=1f/16;
+            } else {
+                if(DIFFICULTY_PERCENT_CHANGE != (float) 1f/1f) {
+                    DIFFICULTY_PERCENT_CHANGE = (float) 1f/1f;
+                }
+            }
+            if (averageCountOfMillisecondsToMineABlockForTenLastBlocks < COUNT_OF_MILLISECONDS_TO_MINE_A_BLOCK) {
+                plus = false;
+                System.out.println("Difficulty +++ increasing");
+
+            }
+            if (averageCountOfMillisecondsToMineABlockForTenLastBlocks > COUNT_OF_MILLISECONDS_TO_MINE_A_BLOCK) {
+                plus = true;
+                System.out.println("Difficulty --- decreasing");
+            }
+//            if (DIFFICULTY_PERCENT_CHANGE >= 16) {
+//                DIFFICULTY_PERCENT_CHANGE = 4;
+//            }
+
+            System.out.println("averageCountOfSecondsToMineABlockForTenLastBlocks=" + averageCountOfMillisecondsToMineABlockForTenLastBlocks);
+            if (averageCountOfMillisecondsToMineABlockForTenLastBlocks != COUNT_OF_MILLISECONDS_TO_MINE_A_BLOCK) {
+                //DIFFICULTY_PERCENT_CHANGE = DIFFICULTY_PERCENT_CHANGE * 2;
+                double realDifficultyPercentChange = DIFFICULTY_PERCENT_CHANGE;
+                double more = averageCountOfMillisecondsToMineABlockForTenLastBlocks > COUNT_OF_MILLISECONDS_TO_MINE_A_BLOCK ? averageCountOfMillisecondsToMineABlockForTenLastBlocks : COUNT_OF_MILLISECONDS_TO_MINE_A_BLOCK;
+                double less = averageCountOfMillisecondsToMineABlockForTenLastBlocks < COUNT_OF_MILLISECONDS_TO_MINE_A_BLOCK ? averageCountOfMillisecondsToMineABlockForTenLastBlocks : COUNT_OF_MILLISECONDS_TO_MINE_A_BLOCK;
+
+                if ((less / more) < 0.5) {
+                    realDifficultyPercentChange = 50;
+                }
+                double change = 1 + ((plus ? 1 : (-1)) * (realDifficultyPercentChange / 100));
+//                if((double)(averageCountOfSecondsToMineABlockForTenLastBlocks) / (double)(COUNT_OF_SECONDS_TO_MINE_A_BLOCK)<0.9 || (double)(averageCountOfSecondsToMineABlockForTenLastBlocks) / (double)(COUNT_OF_SECONDS_TO_MINE_A_BLOCK)> 1.1){
+//                    change = 1 + ((plus ? 1 : (-1)) * (25f / 100));
+//                }
+                System.out.println(" Changing to " + change);
+                BlockType blockType = blockTypeVersionList.findBlockType("test_cash:1:0");
+                HashCalculator hashCalculator = blockType.getHashCalculator();
+                String oldDifficultyAsDec = hashCalculator.convertHexStringToDecString(oldDifficulty);
+                System.out.println("oldDifficultyAsDec=" + oldDifficultyAsDec);
+                BigInteger bi = new BigDecimal(oldDifficultyAsDec).multiply(new BigDecimal(change)).toBigInteger();
+                System.out.println("newDifficultyAsDec=" + bi.toString());
+                newDifficulty = hashCalculator.convertDecStringToHexString(bi.toString());
+                System.err.println("NEW_DIFFICULTY = "  + newDifficulty);
+            } else {
+                //DIFFICULTY_PERCENT_CHANGE = DIFFICULTY_PERCENT_CHANGE / 2;
+            }
+        }
+        BlockHeader blockHeader = new BlockHeader("test_cash:1:0", newBlockHeight, newTimeStamp, previousBlockHash, newDifficulty);
+        return new BlockFragment(blockHeader, new SimpleBlockData(data));
+    }
+}

power-collections/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-collections</artifactId>

power-core/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-core</artifactId>

power-db/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-db</artifactId>

power-io/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-io</artifactId>

power-json/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-json</artifactId>

power-log/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-log</artifactId>

power-mail/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-mail</artifactId>

power-persistence/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-persistence</artifactId>

power-random/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-random</artifactId>

power-reflection/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-reflection</artifactId>

power-security/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-security</artifactId>

power-sound/pom.xml

@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ power-framework: Java library with many purposes of usage.
+ Copyright (C) 2016-2022 the original author or authors.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation;
+ version 2.1 of the License only.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ -->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.nanoboot.powerframework</groupId>
+        <artifactId>power-framework</artifactId>
+        <version>2.0.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>power-sound</artifactId>
+    <packaging>jar</packaging>
+
+    <name>Power Sound</name>
+    <description>Sound for the Power library</description>
+
+    <dependencies>
+        <!-- Power dependencies -->
+        <dependency>
+            <groupId>org.nanoboot.powerframework</groupId>
+            <artifactId>power-core</artifactId>
+            <version>${power.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.nanoboot.powerframework</groupId>
+            <artifactId>power-log</artifactId>
+            <version>${power.version}</version>
+        </dependency>
+
+        <!-- Other dependencies -->
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>

power-sound/src/main/java/module-info.java

@@ -0,0 +1,31 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+ module powerframework.template {
+    requires powerframework.core;
+    requires powerframework.log;
+    requires powerframework.utils;
+}

power-sound/src/main/java/org/nanoboot/powerframework/sound/Sound.java

@@ -0,0 +1,13 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package org.nanoboot.powerframework.sound;
+
+/**
+ *
+ * @author robertvokac
+ */
+public class Sound {
+    
+}

power-sql/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-sql</artifactId>

power-stat/pom.xml

@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ power-framework: Java library with many purposes of usage.
+ Copyright (C) 2016-2022 the original author or authors.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation;
+ version 2.1 of the License only.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ -->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.nanoboot.powerframework</groupId>
+        <artifactId>power-framework</artifactId>
+        <version>2.0.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>power-stat</artifactId>
+    <packaging>jar</packaging>
+
+    <name>Power Stat</name>
+    <description>Stat for the Power library</description>
+
+    <dependencies>
+        <!-- Power dependencies -->
+        <dependency>
+            <groupId>org.nanoboot.powerframework</groupId>
+            <artifactId>power-core</artifactId>
+            <version>${power.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.nanoboot.powerframework</groupId>
+            <artifactId>power-log</artifactId>
+            <version>${power.version}</version>
+        </dependency>
+
+        <!-- Other dependencies -->
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>

power-stat/src/main/java/module-info.java

@@ -0,0 +1,31 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+/**
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+module powerframework.template {
+    requires powerframework.core;
+    requires powerframework.log;
+    requires powerframework.utils;
+}

power-stat/src/main/java/org/nanoboot/powerframework/stat/Stat.java

@@ -0,0 +1,13 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package org.nanoboot.powerframework.stat;
+
+/**
+ *
+ * @author robertvokac
+ */
+public class Stat {
+    
+}

power-svg/pom.xml

@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ power-framework: Java library with many purposes of usage.
+ Copyright (C) 2016-2022 the original author or authors.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation;
+ version 2.1 of the License only.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ -->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.nanoboot.powerframework</groupId>
+        <artifactId>power-framework</artifactId>
+        <version>2.0.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>power-svg</artifactId>
+    <packaging>jar</packaging>
+
+    <name>Power SVG</name>
+    <description>SVG for the Power library</description>
+
+    <dependencies>
+        <!-- Power dependencies -->
+        <dependency>
+            <groupId>org.nanoboot.powerframework</groupId>
+            <artifactId>power-core</artifactId>
+            <version>${power.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.nanoboot.powerframework</groupId>
+            <artifactId>power-log</artifactId>
+            <version>${power.version}</version>
+        </dependency>
+
+        <!-- Other dependencies -->
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>

power-svg/src/main/java/module-info.java

@@ -0,0 +1,32 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+module powerframework.template {
+    requires powerframework.core;
+    requires powerframework.log;
+    requires powerframework.utils;
+}

power-svg/src/main/java/org/nanoboot/powerframework/svg/Svg.java

@@ -0,0 +1,13 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package org.nanoboot.powerframework.svg;
+
+/**
+ *
+ * @author robertvokac
+ */
+public class Svg {
+    
+}

power-template/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-template</artifactId>

power-text/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-text</artifactId>

power-time/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-time</artifactId>

power-utils/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-utils</artifactId>

power-view/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-view</artifactId>

power-web/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-web</artifactId>

power-wiki/pom.xml

@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ power-framework: Java library with many purposes of usage.
+ Copyright (C) 2016-2022 the original author or authors.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation;
+ version 2.1 of the License only.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ -->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.nanoboot.powerframework</groupId>
+        <artifactId>power-framework</artifactId>
+        <version>2.0.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>power-wiki</artifactId>
+    <packaging>jar</packaging>
+
+    <name>Power Wiki</name>
+    <description>Wiki functionality for the Power library</description>
+
+    <dependencies>
+        <!-- Power dependencies -->
+        <dependency>
+            <groupId>org.nanoboot.powerframework</groupId>
+            <artifactId>power-core</artifactId>
+            <version>${power.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.nanoboot.powerframework</groupId>
+            <artifactId>power-log</artifactId>
+            <version>${power.version}</version>
+        </dependency>
+
+        <!-- Other dependencies -->
+    </dependencies>
+</project>

power-wiki/src/main/java/module-info.java

@@ -0,0 +1,31 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+module powerframework.wiki {
+    requires powerframework.core;
+    requires powerframework.log;
+    requires powerframework.utils;
+}

power-wiki/src/main/java/org/nanoboot/powerframework/wiki/Block.java

@@ -0,0 +1,170 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.wiki;
+
+import java.util.ArrayList;
+
+/**
+ * Here goes the description of this class.
+ *
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+public class Block {
+
+    private final ArrayList<String> lines = new ArrayList<>();
+    private final ArrayList<String> origLines = new ArrayList<>();
+    private final BlockType blockType;
+
+    public Block(BlockType lineType) {
+        this.blockType = lineType;
+    }
+
+    void addLine(String line) {
+        if(blockType.isOneLined() && lines.size() == 1) {
+            throw new WikiException(blockType.getDescription() + " is one lined. Cannot add line " + line);
+        }
+        origLines.add(line);
+        if(this.blockType != BlockType.PARSER) {
+            line = preProcessLine(line);
+        }
+        lines.add(line);
+    }
+
+    private String preProcessLine(String lineIn) {
+        BlockType lineType = BlockType.getBlockType(lineIn);
+        if(blockType != lineType) {
+            throw new WikiException("Cannot add line to block. Line type is " + lineType + ", but the block type is " + blockType);
+        }
+
+        String line = lineIn;
+        switch (blockType) {
+
+            //            case OL: {
+//                line = line.replace(WikiMarks.ORDERED_LIST, HtmlTags.LI_START);
+//                line = line + HtmlTags.LI_END;
+//            }
+//            break;
+//            case UL: {
+//                line = line.replace(WikiMarks.UNORDERED_LIST, HtmlTags.LI_START);
+//                line = line + HtmlTags.LI_END;
+//            }
+//            break;
+            case BLANK: {
+
+            }
+            break;
+            case P: {
+
+            }
+            break;
+            default: {
+            }
+        }
+        return line;
+    }
+
+    BlockType getBlockType() {
+        return blockType;
+    }
+
+    public String getLine(int lineNumber) {
+        return lines.get(lineNumber);
+    }
+
+    public String toHtml() {
+        StringBuilder stringBuilder = new StringBuilder("<span style=\"background-color:orange\">" + this.blockType + "</span><br />");
+        int linesMaxIndex = lines.size() - 1;
+        int i = 0;
+        for (String line : lines) {
+            stringBuilder.append(line);
+            if(i++ < linesMaxIndex) {
+                stringBuilder.append('\n');
+            }
+        }
+
+        String string = stringBuilder.toString();
+        switch (blockType) {
+
+            case H1: {
+                string = string.replace(WikiMarks.HEADING1_START, HtmlTags.H1_START);
+                string = string.replace(WikiMarks.HEADING1_END, HtmlTags.H1_END);
+            }
+            break;
+            case H2: {
+                string = string.replace(WikiMarks.HEADING2_START, HtmlTags.H2_START);
+                string = string.replace(WikiMarks.HEADING2_END, HtmlTags.H2_END);
+            }
+            break;
+            case H3: {
+                string = string.replace(WikiMarks.HEADING3_START, HtmlTags.H3_START);
+                string = string.replace(WikiMarks.HEADING3_END, HtmlTags.H3_END);
+            }
+            break;
+            case H4: {
+                string = string.replace(WikiMarks.HEADING4_START, HtmlTags.H4_START);
+                string = string.replace(WikiMarks.HEADING4_END, HtmlTags.H4_END);
+            }
+            break;
+            case H5: {
+                string = string.replace(WikiMarks.HEADING5_START, HtmlTags.H5_START);
+                string = string.replace(WikiMarks.HEADING5_END, HtmlTags.H5_END);
+            }
+            break;
+            case H6: {
+                string = string.replace(WikiMarks.HEADING6_START, HtmlTags.H6_START);
+                string = string.replace(WikiMarks.HEADING6_END, HtmlTags.H6_END);
+            }
+            break;
+            case LIST: {
+                string = HtmlTags.OL_START + '\n' + string + '\n' + HtmlTags.OL_END;
+            }
+            break;
+//            case UL: {
+//                string = HtmlTags.UL_START + '\n' + string + '\n' + HtmlTags.UL_END;
+//            }
+//            break;
+            case BLANK: {
+
+            }
+            break;
+            case P: {
+                string = HtmlTags.P_START + '\n' + string + '\n' + HtmlTags.P_END;
+            }
+            break;
+            default: {
+            }
+        }
+        //s = "\n\n\n\n### ZZZZZZZZZZZZZZZZZZZ ###\n" + s + "\n---------------------\n" + string + "\n-----------------";
+        //System.out.println(s);
+        string = "<!-- Block begins- lineType=" + this.blockType.getDescription() + " -->\n" + string + "\n<!-- Block ends- lineType=" + this.blockType.getDescription() + " -->";
+        return string;
+    }
+    public String getOrig(){
+        StringBuilder stringBuilder=new StringBuilder();
+        for(String e:origLines){
+            stringBuilder.append(e).append("\n");
+        }
+        return stringBuilder.toString();
+    }
+
+}

power-wiki/src/main/java/org/nanoboot/powerframework/wiki/BlockList.java

@@ -0,0 +1,70 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.wiki;
+
+import java.util.ArrayList;
+
+/**
+ * Here goes the description of this class.
+ *
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+class BlockList {
+
+    /**
+     * Logger for this class.
+     */
+    private static final org.nanoboot.powerframework.log.Logger LOG = org.nanoboot.powerframework.log.Logger.getLogger(BlockList.class);
+
+    /**
+     * Constant description
+     */
+    private final ArrayList<Block> blocks = new ArrayList<>();
+    private Block currentBlock = null;
+
+    void addLine(String lineIn) {
+        BlockType lineType = BlockType.getBlockType(lineIn);
+        if(currentBlock == null) {
+            currentBlock = new Block(lineType);
+            currentBlock.addLine(lineIn);
+            return;
+        }
+        try {
+            currentBlock.addLine(lineIn);
+        } catch (WikiException e) {
+            blocks.add(currentBlock);
+            currentBlock = new Block(lineType);
+            currentBlock.addLine(lineIn);
+        }
+
+    }
+
+    public ArrayList<Block> getList() {
+        if(currentBlock != null) {
+            blocks.add(currentBlock);
+        }
+        currentBlock = null;
+        return blocks;
+    }
+
+}

power-wiki/src/main/java/org/nanoboot/powerframework/wiki/BlockType.java

@@ -0,0 +1,158 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.wiki;
+
+/**
+ * 
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+enum BlockType {
+
+    H1("Heading 1", true),
+    H2("Heading 2", true),
+    H3("Heading 3", true),
+    H4("Heading 4", true),
+    H5("Heading 5", true),
+    H6("Heading 6", true),
+    LIST("List", false),
+    BLANK("Blank line", true),
+    P("Paragraph", false),
+    TABLE("Table", false),
+    PARSER("Parser", false),
+    HR("Horizontal rule", false),
+    CONTENT("Content", false),
+    COMMENT("Comment", false);
+
+    private String description;
+    private boolean oneLined;
+
+    BlockType(String string, boolean oneLined) {
+        this.description = string;
+        this.oneLined = oneLined;
+    }
+
+    static BlockType getBlockType(String line) {
+        if(line.isEmpty()) {
+            return BlockType.BLANK;
+        }
+        if(lineIsH1(line)) {
+            return BlockType.H1;
+        }
+        if(lineIsH2(line)) {
+            return BlockType.H2;
+        }
+        if(lineIsH3(line)) {
+            return BlockType.H3;
+        }
+        if(lineIsH4(line)) {
+            return BlockType.H4;
+        }
+        if(lineIsH5(line)) {
+            return BlockType.H5;
+        }
+        if(lineIsH6(line)) {
+            return BlockType.H6;
+        }
+        if(lineIsList(line)) {
+            return BlockType.LIST;
+        }
+
+        if(lineIsTable(line)) {
+            return BlockType.TABLE;
+        }
+        if(lineIsParser(line)) {
+            return BlockType.PARSER;
+        }
+        if(lineIsHR(line)) {
+            return BlockType.HR;
+        }
+        if(lineIsComment(line)) {
+            return BlockType.COMMENT;
+        }
+
+        return BlockType.P;
+    }
+
+    private static boolean lineIsH1(String line) {
+        return line.startsWith(WikiMarks.HEADING1_START);
+    }
+
+    private static boolean lineIsH2(String line) {
+        return line.startsWith(WikiMarks.HEADING2_START);
+    }
+
+    private static boolean lineIsH3(String line) {
+        return line.startsWith(WikiMarks.HEADING3_START);
+    }
+
+    private static boolean lineIsH4(String line) {
+        return line.startsWith(WikiMarks.HEADING4_START);
+    }
+
+    private static boolean lineIsH5(String line) {
+        return line.startsWith(WikiMarks.HEADING5_START);
+    }
+
+    private static boolean lineIsH6(String line) {
+        return line.startsWith(WikiMarks.HEADING6_START);
+    }
+
+    private static boolean lineIsList(String line) {
+        line = " " + line.trim();
+        return line.startsWith(WikiMarks.UNORDERED_LIST) || line.startsWith(WikiMarks.ORDERED_LIST);
+    }
+
+    private static boolean lineIsTable(String line) {
+        return line.startsWith(WikiMarks.TABLE_BORDER);
+    }
+
+    private static boolean lineIsParser(String line) {
+        return line.startsWith(WikiMarks.PARSER_START);
+    }
+
+    private static boolean lineIsHR(String line) {
+        return line.startsWith(WikiMarks.HORIZONTAL_RULE_4);
+    }
+
+    private static boolean lineIsComment(String line) {
+        return line.startsWith(WikiMarks.COMMENT_LINE_BEGINNING);
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public boolean isOneLined() {
+        return this.oneLined;
+    }
+
+    public static boolean isIn(BlockType blockType, BlockType... blockTypes) {
+        for (BlockType e : blockTypes) {
+            if(e == blockType) {
+                return true;
+            }
+        }
+        return false;
+    }
+}

power-wiki/src/main/java/org/nanoboot/powerframework/wiki/HtmlTags.java

@@ -0,0 +1,117 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.wiki;
+
+/**
+ * Here goes the description of this class.
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+public class HtmlTags {
+
+    /**
+     * Logger for this class.
+     */
+    private static final org.nanoboot.powerframework.log.Logger LOG = org.nanoboot.powerframework.log.Logger.getLogger(HtmlTags.class);
+
+    /**
+     * Constant description
+     */
+    private static final String CONSTANT = "constant";
+
+    static final String B_START = "<b>";
+    public static final String B_END = "</b>";
+    public static final String I_START = "<i>";
+    public static final String I_END = "</i>";
+    public static final String U_START = "<u>";
+    public static final String U_END = "</u>";
+    public static final String COLOURED_START = "<span style=\"colour:%s\">";
+    public static final String COLOURED_END = "</span>";
+    public static final String BACKGROUND_HIGHLIGHTED_START = "<span style=\"background-colour:%s\">";
+    public static final String BACKGROUND_HIGHLIGHTED_END = "</span>";
+    public static final String SUPER_SCRIPT_START = "<sup>";
+    public static final String SUPER_SCRIPT_END = "</sup>";
+    public static final String SUB_SCRIPT_START = "<sub>";
+    public static final String SUB_SCRIPT_END = "</sub>";
+    public static final String MONOSPACE_START = "<span style=\"font-family: monospace, monospace;\">";
+    public static final String MONOSPACE_SCRIPT_END = "</span>";
+    public static final String STROKE_START = "<span style=\"text-decoration: line-through;\">";
+    public static final String STROKE_END = "</span>";
+    public static final String SMALLER_START = "<span style=\"font-size: 60%;\">";
+    public static final String SMALLER_END = "</span>";
+    public static final String LARGER_START = "<span style=\"font-size:140%;\">";
+    public static final String LARGER_END = "</span>";
+    public static final String LINK = "<a href=\"%s\">%s</a>";
+    public static final String EMBED_IMG = "<img src=\"%s\" alt=\"%s\">";
+    public static final String SIZE_START = "<span style=\"font-size:%s;\">";
+    public static final String SIZE_END = "</span>";
+
+    public static final String H1_START = "<h1>";
+    public static final String H1_END = "</h1>";
+    public static final String H2_START = "<h2>";
+    public static final String H2_END = "</h2>";
+    public static final String H3_START = "<h3>";
+    public static final String H3_END = "</h3>";
+    public static final String H4_START = "<h4>";
+    public static final String H4_END = "</h4>";
+    public static final String H5_START = "<h5>";
+    public static final String H5_END = "</h5>";
+    public static final String H6_START = "<h6>";
+    public static final String H6_END = "</h6>";
+
+    public static final String OL_START = "<ol>";
+    public static final String OL_END = "</ol>";
+    public static final String UL_START = "<ul>";
+    public static final String UL_END = "</ul>";
+    public static final String LI_START = "<li>";
+    public static final String LI_END = "</li>";
+    public static final String P_START = "<p>";
+    public static final String P_END = "</p>";
+
+    public static final String TABLE_START = "<table>";
+    public static final String TABLE_END = "</table>";
+    public static final String TR_START = "<tr>";
+    public static final String TR_END = "</tr>";
+    public static final String TH_START = "<th>";
+    public static final String TH_END = "</th>";
+    public static final String TD_START = "<td>";
+    public static final String TD_END = "</td>";
+
+    public static final String HR4 = "<hr style=\"height: 1px;\">";
+    public static final String HR5 = "<hr style=\"height: 2px;\">";
+    public static final String HR6 = "<hr style=\"height: 3px;\">";
+    public static final String HR7 = "<hr style=\"height: 4px;\">";
+    public static final String HR8 = "<hr style=\"height: 5px;\">";
+    public static final String HR9 = "<hr style=\"height: 6px;\">";
+    public static final String HR10 = "<hr style=\"height: 7px;\">";
+
+    public static final String COMMENT_TEMPLATE = "<!-- %s -->";
+
+    /**
+     * Constructor
+     *
+     * Not meant to be instantiated.
+     */
+    private HtmlTags() {
+    }
+
+}

power-wiki/src/main/java/org/nanoboot/powerframework/wiki/Macro.java

@@ -0,0 +1,63 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.wiki;
+
+/**
+ * Here goes the description of this class.
+ *
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+
+public class Macro {
+
+    /**
+     * Logger for this class.
+     */
+    private static final org.nanoboot.powerframework.log.Logger LOG = org.nanoboot.powerframework.log.Logger.getLogger(Macro.class);
+
+    /**
+     * Constant description
+     */
+    private static final String CONSTANT = "constant";
+
+    /**
+     * Field description
+     */
+    private String content;
+    private final String value;
+
+    /**
+     * Constructor
+     *
+     * Constructor description
+     */
+    public Macro(String content, TextProcessorI processor) {
+        this.content = content;
+        this.value = processor.process(content);
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+}

power-wiki/src/main/java/org/nanoboot/powerframework/wiki/StringSource.java

@@ -0,0 +1,75 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.wiki;
+
+/**
+ * Here goes the description of this class.
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ *
+ */
+public class StringSource {
+
+    /**
+     * Logger for this class.
+     */
+    private static final org.nanoboot.powerframework.log.Logger LOG = org.nanoboot.powerframework.log.Logger.getLogger(StringSource.class);
+
+    /**
+     * Constant description
+     */
+    private static final String CONSTANT = "constant";
+
+    /**
+     * Field description
+     */
+    private String string;
+    private int position = 0;
+
+    /**
+     * Constructor
+     *
+     */
+    public StringSource(String string) {
+        this.string = string;
+    }
+
+    public char getNext() {
+        return string.charAt(position++);
+    }
+
+    public char getLast() {
+        if(position - 1 == 0) {
+            return ' ';
+        }
+        return string.charAt(position - 1);
+    }
+
+    public boolean hasNext() {
+        return position <= string.length() - 1;
+    }
+
+    public char get(int number) {
+        return string.charAt(position + number);
+    }
+
+}

power-wiki/src/main/java/org/nanoboot/powerframework/wiki/TextFormatter.java

@@ -0,0 +1,81 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.wiki;
+
+/**
+ * Here goes the description of this class.
+ *
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ *
+ */
+public class TextFormatter {
+
+    /**
+     * Logger for this class.
+     */
+    private static final org.nanoboot.powerframework.log.Logger LOG = org.nanoboot.powerframework.log.Logger.getLogger(TextFormatter.class);
+
+    /**
+     * Constant description
+     */
+    private static final String CONSTANT = "constant";
+
+    /**
+     * Field description
+     */
+    private String name;
+
+    /**
+     * Constructor
+     *
+     * Not meant to be instantiated.
+     */
+    private TextFormatter() {
+    }
+
+    public static String format(String text) {
+        StringSource stringSource = new StringSource(text);
+        StringBuilder out = new StringBuilder();
+        StringBuilder buffer = new StringBuilder();
+        while (stringSource.hasNext()) {
+            char ch = stringSource.getNext();
+
+            if(ch == '[' && stringSource.getLast() == '[') {
+                ch = stringSource.getNext();
+                while (!(ch == ']' && stringSource.get(1) == ']')) {
+                    buffer.append(ch);
+                    if(!stringSource.hasNext()) {
+                        break;
+                    }
+                    ch = stringSource.getNext();
+                }
+                out.append(buffer.toString());
+                buffer.delete(0, buffer.length());
+            };
+
+        }
+
+        return out.toString();
+    }
+
+}

power-wiki/src/main/java/org/nanoboot/powerframework/wiki/TextProcessorI.java

@@ -0,0 +1,34 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.wiki;
+
+/**
+ *
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ */
+public interface TextProcessorI {
+
+    public String process(String text);
+
+    public String getName();
+}

power-wiki/src/main/java/org/nanoboot/powerframework/wiki/WikiException.java

@@ -0,0 +1,53 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.wiki;
+
+import org.nanoboot.powerframework.core.PowerException;
+
+/**
+ * Here goes the description of this class.
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ *
+ */
+public class WikiException extends PowerException {
+
+    /**
+     * Logger for this class.
+     */
+    private static final org.nanoboot.powerframework.log.Logger LOG = org.nanoboot.powerframework.log.Logger.getLogger(WikiException.class);
+
+    /**
+     * Constant description
+     */
+    private static final String CONSTANT = "constant";
+
+    /**
+     * Field description
+     */
+    private String name;
+
+    public WikiException(String messageIn) {
+        super(messageIn);
+    }
+
+}

power-wiki/src/main/java/org/nanoboot/powerframework/wiki/WikiMarks.java

@@ -0,0 +1,108 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.wiki;
+
+/**
+ * Here goes the description of this class.
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ *
+ */
+public class WikiMarks {
+
+    /**
+     * Logger for this class.
+     */
+    private static final org.nanoboot.powerframework.log.Logger LOG = org.nanoboot.powerframework.log.Logger.getLogger(WikiMarks.class);
+
+    /**
+     * Constant description
+     */
+    private static final String CONSTANT = "constant";
+
+    public static final String BOLD = "\\*\\*";
+    public static final String ITALIC = "//";
+    public static final String UNDERLINED = "__";
+    public static final String COLOURED = "$$";
+    public static final String BACKGROUND_HIGHLIGHTED = "##";
+    public static final String SUPERSCRIPT = "^";
+    public static final String SUBSCRIPT = ",,";
+    public static final String MONOSPACE = "`";
+    public static final String STROKE = "--";
+    public static final String SMALLER_START = "~-";
+    public static final String SMALLER_END = "-~";
+    public static final String LARGER_START = "~+";
+    public static final String LARGER_END = "+~";
+
+    public static final String LINK_START = "[[";
+    public static final String LINK_END = "]]";
+    public static final String EMBED_START = "{{";
+    public static final String EMBED_END = "}}";
+    public static final String SIZE = "&&";
+
+    public static final String MACRO_START = "<<";
+    public static final String MACRO_END = ">>";
+
+    public static final String PARSER_START = "{{{";
+    public static final String PARSER_END = "}}}";
+
+    public static final String HEADING1_START = "= ";
+    public static final String HEADING2_START = "== ";
+    public static final String HEADING3_START = "=== ";
+    public static final String HEADING4_START = "==== ";
+    public static final String HEADING5_START = "===== ";
+    public static final String HEADING6_START = "====== ";
+    public static final String HEADING1_END = " =";
+    public static final String HEADING2_END = " ==";
+    public static final String HEADING3_END = " ===";
+    public static final String HEADING4_END = " ====";
+    public static final String HEADING5_END = " =====";
+    public static final String HEADING6_END = " ======";
+    public static final String UNORDERED_LIST = " *";
+    public static final String ORDERED_LIST = " 1.";
+    public static final String TABLE_BORDER = " || ";
+    public static final String TABLE_COLOURED = "$$$";
+    public static final String TABLE_BACKGROUND_HIGHLIGHTED = "###";
+
+    public static final String HORIZONTAL_RULE_4 = "----";
+    public static final String HORIZONTAL_RULE_5 = "-----";
+    public static final String HORIZONTAL_RULE_6 = "------";
+    public static final String HORIZONTAL_RULE_7 = "-------";
+    public static final String HORIZONTAL_RULE_8 = "--------";
+    public static final String HORIZONTAL_RULE_9 = "---------";
+    public static final String HORIZONTAL_RULE_10 = "----------";
+    public static final String COMMENT_LINE_BEGINNING = "####";
+
+    /**
+     * Field description
+     */
+    private String name;
+
+    /**
+     * Constructor
+     *
+     * Not meant to be instantiated.
+     */
+    private WikiMarks() {
+    }
+
+}

power-wiki/src/main/java/org/nanoboot/powerframework/wiki/WikiParser.java

@@ -0,0 +1,192 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.wiki;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.regex.Pattern;
+import org.nanoboot.powerframework.utils.StringUtils;
+
+/**
+ * Here goes the description of this class.
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ *
+ */
+public class WikiParser {
+
+    /**
+     * Logger for this class.
+     */
+    //private static final org.nanoboot.powerframework.logging.Logger LOG = org.nanoboot.powerframework.logging.Logger.getLogger(WikiParser.class);
+    /**
+     * Constant description
+     */
+    private static final String CONSTANT = "constant";
+
+    /**
+     * Field description
+     */
+    private static TextProcessorI linkProcessor;
+    private static final Map<String, TextProcessorI> macroProcessorsList = new HashMap<>();
+
+    /**
+     * Constructor
+     *
+     * Not meant to be instantiated.
+     */
+    public static void setLinkProcessor(TextProcessorI linkProcessorIn) {
+        linkProcessor = linkProcessorIn;
+    }
+
+    public String convertWiki(String wikiText) {
+        System.out.println("Converting wiki text:\n\n"+wikiText);
+        ArrayList<Block> blocks = splitWikiTextToBlocks(wikiText);
+        StringBuilder stringBuilder = new StringBuilder();
+        for (Block block : blocks) {
+            System.out.println("\n====================\n"+block.getBlockType()+"\n\n");
+            String html = block.toHtml();
+            System.out.println(block.getOrig()); 
+            System.out.println("VVVVVVVVVVVVVVVVVVVV");
+System.out.println(html);
+            stringBuilder.append(html).append('\n').append('\n');
+        }
+        String string = stringBuilder.toString();
+        return string;
+    }
+
+    public void setStyle(String string) {
+
+    }
+
+    public void addMacroProcessor(TextProcessorI macroProcessor) {
+        macroProcessorsList.put(macroProcessor.getName(), macroProcessor);
+    }
+
+    public TextProcessorI getMacroProcessor(String macroName) {
+        return macroProcessorsList.get(macroName);
+    }
+
+    @Deprecated
+    public static String convert(String wikiText) {
+
+        //System.err.println("\n\n\nWIKI" + "\n{\n" + wikiText + "\n}######$$$");
+        while (true) {
+            if(wikiText.contains(WikiMarks.BOLD)) {
+                wikiText = wikiText.replaceFirst(WikiMarks.BOLD, HtmlTags.B_START);
+                //System.err.println(String.format("Replacing %s by %s", BOLD, B_START));
+            }
+            if(wikiText.contains(WikiMarks.BOLD)) {
+                wikiText = wikiText.replaceFirst(WikiMarks.BOLD, HtmlTags.B_END);
+                //System.err.println(String.format("Replacing %s by %s", BOLD, B_END));
+            }
+
+            if(!wikiText.contains(WikiMarks.BOLD)) {
+                break;
+            }
+        }
+
+        while (true) {
+
+            if(wikiText.contains(WikiMarks.ITALIC)) {
+                wikiText = wikiText.replaceFirst(WikiMarks.ITALIC, HtmlTags.I_START);
+                //System.err.println(String.format("Replacing %s by %s", ITALIC, I_START));
+            }
+            if(wikiText.contains(WikiMarks.ITALIC)) {
+                wikiText = wikiText.replaceFirst(WikiMarks.ITALIC, HtmlTags.I_END);
+                //System.err.println(String.format("Replacing %s by %s", ITALIC, I_END));
+            }
+            if(!wikiText.contains(WikiMarks.ITALIC)) {
+                break;
+            }
+        }
+        StringBuilder stringBuilder = new StringBuilder();
+
+        ArrayList<Block> blocks = splitWikiTextToBlocks(wikiText);
+
+//        StringBuilder stringBuilder2 = new StringBuilder("Adding block\n\n");
+//        for (Block block : blocks) {
+//            stringBuilder2.append("\n###{\n").append(block.toHtml()).append("\n}\n");
+//        }
+        //System.err.println(stringBuilder2);
+//        try {
+//            Thread.sleep(10000);
+//        } catch (InterruptedException ex) {
+//            Logger.getLogger(WikiParser.class.getName()).log(Level.SEVERE, null, ex);
+//        }
+        for (Block block : blocks) {
+            String html = block.toHtml();
+
+            stringBuilder.append(html).append('\n').append('\n');
+        }
+        String string = stringBuilder.toString();
+        //System.out.println("Wiki convertor returned\n\n\n{\n" + string + "\n}\n\n\n");
+        return string;
+    }
+
+    @Deprecated
+    private String processText(String text) {
+        StringSource stringSource = new StringSource(text);
+        StringBuilder out = new StringBuilder();
+        StringBuilder buffer = new StringBuilder();
+        while (stringSource.hasNext()) {
+            char ch = stringSource.getNext();
+
+            if(ch == '[' && stringSource.getLast() == '[') {
+                ch = stringSource.getNext();
+                while (!(ch == ']' && stringSource.get(1) == ']')) {
+                    buffer.append(ch);
+                    if(!stringSource.hasNext()) {
+                        break;
+                    }
+                    ch = stringSource.getNext();
+                }
+                out.append(buffer.toString());
+                buffer.delete(0, buffer.length());
+            };
+
+        }
+
+        return out.toString();
+    }
+
+    @Deprecated
+    public static void replaceOccurences(StringBuilder stringBuilder, String what, String replacement) {
+        Pattern.compile(what).matcher(stringBuilder).replaceAll(replacement);
+    }
+
+    public static ArrayList<Block> splitWikiTextToBlocks(String wikiText) {
+        BlockList blockList = new BlockList();
+
+        ArrayList<Block> blocks;
+        String[] lines = StringUtils.toLines(wikiText);
+
+        for (String line : lines) {
+            blockList.addLine(line);
+        }
+        blocks = blockList.getList();
+
+        return blocks;
+    }
+
+}

power-wiki/src/main/java/org/nanoboot/powerframework/wiki/convertors/ListConvertor.java

@@ -0,0 +1,89 @@
+
+///////////////////////////////////////////////////////////////////////////////////////////////
+// power-framework: Java library with many purposes of usage.
+// Copyright (C) 2016-2022 the original author or authors.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation;
+// version 2.1 of the License only.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+package org.nanoboot.powerframework.wiki.convertors;
+
+import org.nanoboot.powerframework.core.PowerObject;
+
+/**
+ * Here goes the description of this class.
+ *
+ * @author <a href="mailto:robertvokac@nanoboot.org">Robert Vokac</a>
+ * @since 0.0.0
+ *
+ */
+public class ListConvertor extends PowerObject {
+
+    /**
+     * Logger for this class.
+     */
+    private static final org.nanoboot.powerframework.log.Logger LOG = org.nanoboot.powerframework.log.Logger.getLogger(ListConvertor.class);
+
+    /**
+     * Constant description
+     */
+    private static final String CONSTANT = "constant";
+
+    /**
+     * Field description
+     */
+    private String name;
+
+    /**
+     * Constructor
+     *
+     * Not meant to be instantiated.
+     */
+    private ListConvertor() {
+    }
+
+    /**
+     * Constructor
+     *
+     * Constructor description
+     *
+     * @param nameIn
+     */
+    public ListConvertor(String nameIn) {
+        this.name = nameIn;
+    }
+
+     /**
+     * Setter for name.
+     *
+     * @param nameIn
+     */
+    public void setName(String nameIn) {
+        LOG.traceStartOfMethod(this, "setName", "name", name);
+        this.name = nameIn;
+    }
+
+    /**
+     * Getter for name.
+     *
+     * @return name
+     */
+    public String getName() {
+        LOG.traceStartOfMethod(this, "getName");
+        return this.name;
+    }
+
+
+}

power-xml/pom.xml

@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.nanoboot.powerframework</groupId>
         <artifactId>power-framework</artifactId>
-        <version>2.0.0</version>
+        <version>2.0.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>power-xml</artifactId>