357 lines
15 KiB
C#
357 lines
15 KiB
C#
#region Using Statements
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using System;
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using System.IO;
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using System.Reflection;
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using System.Collections.Generic;
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using System.Linq;
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using ANX.Framework.Input;
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using NLog;
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using System.Collections;
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using System.Resources;
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#endregion // Using Statements
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#region License
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//
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// This file is part of the ANX.Framework created by the "ANX.Framework developer group".
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//
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// This file is released under the Ms-PL license.
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//
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//
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//
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// Microsoft Public License (Ms-PL)
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//
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// This license governs use of the accompanying software. If you use the software, you accept this license.
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// If you do not accept the license, do not use the software.
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//
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// 1.Definitions
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// The terms "reproduce," "reproduction," "derivative works," and "distribution" have the same meaning
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// here as under U.S. copyright law.
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// A "contribution" is the original software, or any additions or changes to the software.
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// A "contributor" is any person that distributes its contribution under this license.
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// "Licensed patents" are a contributor's patent claims that read directly on its contribution.
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//
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// 2.Grant of Rights
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// (A) Copyright Grant- Subject to the terms of this license, including the license conditions and limitations
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// in section 3, each contributor grants you a non-exclusive, worldwide, royalty-free copyright license to
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// reproduce its contribution, prepare derivative works of its contribution, and distribute its contribution
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// or any derivative works that you create.
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// (B) Patent Grant- Subject to the terms of this license, including the license conditions and limitations in
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// section 3, each contributor grants you a non-exclusive, worldwide, royalty-free license under its licensed
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// patents to make, have made, use, sell, offer for sale, import, and/or otherwise dispose of its contribution
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// in the software or derivative works of the contribution in the software.
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//
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// 3.Conditions and Limitations
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// (A) No Trademark License- This license does not grant you rights to use any contributors' name, logo, or trademarks.
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// (B) If you bring a patent claim against any contributor over patents that you claim are infringed by the software, your
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// patent license from such contributor to the software ends automatically.
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// (C) If you distribute any portion of the software, you must retain all copyright, patent, trademark, and attribution
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// notices that are present in the software.
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// (D) If you distribute any portion of the software in source code form, you may do so only under this license by including
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// a complete copy of this license with your distribution. If you distribute any portion of the software in compiled or
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// object code form, you may only do so under a license that complies with this license.
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// (E) The software is licensed "as-is." You bear the risk of using it. The contributors give no express warranties, guarantees,
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// or conditions. You may have additional consumer rights under your local laws which this license cannot change. To the
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// extent permitted under your local laws, the contributors exclude the implied warranties of merchantability, fitness for a
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// particular purpose and non-infringement.
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#endregion // License
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namespace ANX.Framework.NonXNA
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{
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public class AddInSystemFactory
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{
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private Dictionary<String, ICreator> creators;
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private static AddInSystemFactory instance;
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private bool initialized;
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private Dictionary<Type, ICreator> defaultCreators = new Dictionary<Type, ICreator>();
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private OperatingSystem operatingSystem;
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private Version operatingSystemVersion;
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private static Logger logger = LogManager.GetCurrentClassLogger();
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public static AddInSystemFactory Instance
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{
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get
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{
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if (instance == null)
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{
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instance = new AddInSystemFactory();
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logger.Debug("Created AddInSystemFactory instance");
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}
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return instance;
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}
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}
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private AddInSystemFactory()
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{
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this.creators = new Dictionary<string, ICreator>();
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this.operatingSystem = Environment.OSVersion;
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this.operatingSystemVersion = this.operatingSystem.Version;
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logger.Info("Operating System: {0} ({1})", operatingSystem.VersionString, operatingSystemVersion.ToString());
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}
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public void Initialize()
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{
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if (!initialized)
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{
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initialized = true;
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logger.Info("[ANX] Initializing ANX.Framework AddInSystemFactory...");
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String executingAssembly = Assembly.GetExecutingAssembly().Location;
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foreach (String file in Directory.EnumerateFiles(Path.GetDirectoryName(executingAssembly), "*.dll", SearchOption.TopDirectoryOnly))
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{
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if (!file.Equals(executingAssembly))
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{
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logger.Info("[ANX] trying to load '{0}'...", file);
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Assembly part = null;
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try
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{
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part = Assembly.LoadFile(file);
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}
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catch (Exception ex)
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{
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logger.Debug("error calling Assembly.LoadFile({0}) Exception: {1}", file, ex.Message);
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}
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if (part != null)
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{
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logger.Info("[ANX] scanning for ANX interfaces...");
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foreach (Type t in part.GetTypes().Where(p => typeof(IInputSystemCreator).IsAssignableFrom(p) ||
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typeof(IRenderSystemCreator).IsAssignableFrom(p) ||
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typeof(ISoundSystemCreator).IsAssignableFrom(p)
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))
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{
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logger.Info("[ANX] testing if assembly is supported on current platform");
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string[] platforms = FetchSupportedPlattforms(part);
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bool supportedPlatform = false;
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foreach (string platform in platforms)
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{
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if (string.Equals(OperatingSystem.Platform.ToString(), platform, StringComparison.InvariantCultureIgnoreCase))
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{
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supportedPlatform = true;
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break;
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}
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}
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if (supportedPlatform)
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{
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logger.Info("[ANX] registering instance of '{0}'...", t.FullName);
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var instance = part.CreateInstance(t.FullName);
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((ICreator)instance).RegisterCreator(this);
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}
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else
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{
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logger.Info("[ANX] current platform '{0}' is not supported by '{1}'", OperatingSystem.Platform.ToString(), t.FullName);
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}
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}
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}
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}
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}
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SetDefaultCreators();
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}
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}
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public void AddCreator(ICreator creator)
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{
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string creatorName = creator.Name.ToLowerInvariant();
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if (creators.ContainsKey(creatorName))
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{
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throw new Exception("Duplicate creator found. A creator with the name '" + creator.Name + "' was already registered.");
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}
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creators.Add(creatorName, creator);
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}
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public bool HasFramework(String name)
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{
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return creators.ContainsKey(name.ToLowerInvariant());
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}
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public T GetCreator<T>(String name) where T : class, ICreator
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{
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if (!initialized)
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{
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Initialize();
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}
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ICreator creator = null;
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creators.TryGetValue(name.ToLowerInvariant(), out creator);
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return creator as T;
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}
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public IEnumerable<T> GetCreators<T>() where T : class, ICreator
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{
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if (!initialized)
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{
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Initialize();
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}
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Type t = typeof(T);
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foreach (ICreator creator in this.creators.Values)
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{
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if (creator.GetType().GetInterfaces()[0].Equals(t))
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{
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yield return creator as T;
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}
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}
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}
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public T GetDefaultCreator<T>() where T : class, ICreator
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{
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if (!initialized)
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{
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Initialize();
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}
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Type type = typeof(T);
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if (defaultCreators.ContainsKey(type))
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{
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return defaultCreators[type] as T;
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}
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throw new AddInLoadingException(String.Format("couldn't find a DefaultCreator of type '{0}'", type.FullName));
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}
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public void SetDefaultCreator<T>(T creator) where T : class, ICreator
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{
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defaultCreators[typeof(T)] = creator;
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}
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public void SetDefaultCreator(string creatorName)
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{
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if (!initialized)
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{
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Initialize();
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}
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ICreator creator = null;
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creators.TryGetValue(creatorName.ToLowerInvariant(), out creator);
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defaultCreators[creator.GetType().GetInterfaces()[0]] = creator;
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}
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public OperatingSystem OperatingSystem
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{
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get
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{
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return this.operatingSystem;
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}
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}
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public Version OperatingSystemVersion
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{
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get
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{
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return this.operatingSystemVersion;
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}
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}
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private void SetDefaultCreators()
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{
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foreach (ICreator creator in this.creators.Values)
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{
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string type = creator.GetType().GetInterfaces()[0].ToString();
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switch (type)
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{
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case "ANX.Framework.NonXNA.IRenderSystemCreator":
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IRenderSystemCreator renderSystemCreator = creator as IRenderSystemCreator;
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IRenderSystemCreator defaultRenderSystemCreator = null;
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try
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{
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defaultRenderSystemCreator = GetDefaultCreator<IRenderSystemCreator>();
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}
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catch { }
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if (renderSystemCreator != null && (defaultRenderSystemCreator == null || defaultRenderSystemCreator.Priority > renderSystemCreator.Priority))
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{
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SetDefaultCreator<IRenderSystemCreator>(renderSystemCreator);
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}
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break;
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case "ANX.Framework.NonXNA.ISoundSystemCreator":
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ISoundSystemCreator soundSystemCreator = creator as ISoundSystemCreator;
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ISoundSystemCreator defaultSoundSystemCreator = null;
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try
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{
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defaultSoundSystemCreator = GetDefaultCreator<ISoundSystemCreator>();
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}
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catch { }
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if (soundSystemCreator != null && (defaultSoundSystemCreator == null || defaultSoundSystemCreator.Priority > soundSystemCreator.Priority))
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{
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SetDefaultCreator<ISoundSystemCreator>(soundSystemCreator);
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}
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break;
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case "ANX.Framework.NonXNA.IInputSystemCreator":
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IInputSystemCreator inputSystemCreator = creator as IInputSystemCreator;
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IInputSystemCreator defaultInputSystemCreator = null;
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try
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{
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defaultInputSystemCreator = GetDefaultCreator<IInputSystemCreator>();
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}
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catch { }
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if (inputSystemCreator != null && (defaultInputSystemCreator == null || defaultInputSystemCreator.Priority > inputSystemCreator.Priority))
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{
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SetDefaultCreator<IInputSystemCreator>(inputSystemCreator);
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}
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break;
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case "ANX.Framework.NonXNA.ICreator":
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break;
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default:
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throw new InvalidOperationException(String.Format("unable to set a default system for creator of type '{0}'", type));
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}
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}
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}
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private string[] FetchSupportedPlattforms(Assembly assembly)
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{
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string[] platforms = null;
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string[] res = assembly.GetManifestResourceNames();
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if (res != null)
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{
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foreach (string ressource in res)
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{
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Stream manifestResourceStream = assembly.GetManifestResourceStream(ressource);
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if (manifestResourceStream != null)
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{
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using (ResourceReader resourceReader = new ResourceReader(manifestResourceStream))
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{
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IDictionaryEnumerator dict = resourceReader.GetEnumerator();
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while (dict.MoveNext())
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{
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if (string.Equals(dict.Key.ToString(), "SupportedPlatforms", StringComparison.InvariantCultureIgnoreCase) &&
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dict.Value.GetType() == typeof(string))
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{
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platforms = dict.Value.ToString().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
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return platforms;
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}
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}
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resourceReader.Close();
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}
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}
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}
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}
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return platforms;
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}
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}
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}
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