Content Pipeline:

- started implementing XmlImporter
This commit is contained in:
SND\eagleeyestudios_cp 2012-09-28 20:57:30 +00:00 committed by Konstantin Koch
parent 61ba3497f2
commit fa180a58b8
3 changed files with 109 additions and 0 deletions

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@ -108,6 +108,7 @@
<Compile Include="IContentProcessor.cs" />
<Compile Include="Importer\TextureImporter.cs" />
<Compile Include="Importer\WavImporter.cs" />
<Compile Include="Importer\XmlImporter.cs" />
<Compile Include="InvalidContentException.cs" />
<Compile Include="NamedValueDictionary.cs" />
<Compile Include="OpaqueDataDictionary.cs" />
@ -187,6 +188,7 @@
<Compile Include="Tasks\ImporterManager.cs" />
<Compile Include="Tasks\ProcessorManager.cs" />
<Compile Include="VideoContent.cs" />
<Compile Include="Serialization\XmlReaderExtensions.cs" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\ANX.Framework\ANX.Framework.csproj">

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@ -0,0 +1,84 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Xml;
using ANX.Framework.Content.Pipeline.Serialization;
using ANX.Framework.NonXNA.Development;
namespace ANX.Framework.Content.Pipeline.Importer
{
[ContentImporter("ANX XML Importer", ".xml")]
[Developer("SilentWarrior / Eagle Eye Studios")]
[PercentageComplete(20)]
public class XmlImporter : ContentImporter<object>
{
public override object Import(string filename, ContentImporterContext context)
{
object result;
context.Logger.LogMessage("Checking if file exists.");
if (!File.Exists(filename))
throw new InvalidContentException("The XML file \"" + filename + "\" could not be found.");
context.Logger.LogMessage("Starting analysis of the XML file.");
using (XmlReader xml = XmlReader.Create(filename))
{
//Check if XML contains XnaContent or AnxContent root element
context.Logger.LogMessage("Checking for root element.");
if (!xml.CheckForElement("XnaContent") && !xml.CheckForElement("AnxContent"))
throw new InvalidContentException("The given XML file does not contain Xna or Anx readable content! Did you forget the \"<XnaContent>\" or \"<AnxContent>\"?");
//Check which type is beeing described in the XML
var type = GetType(xml, context.Logger);
//Create an instance of that type and fill it with the appropriate stuff
result = ReadObject(xml, type, context.Logger);
}
return result;
}
private Type GetType(XmlReader xml, ContentBuildLogger logger)
{
logger.LogMessage("Moving reader to type attribute of the first asset node.");
xml.ReadStartElement("Asset");
xml.MoveToAttribute("Type");
logger.LogMessage("Trying to read a type from the Xml file");
var type = Type.GetType(xml.ReadContentAsString());
if (type == null)
throw new InvalidContentException("Error during deserialization: Type is null. Is there a valid Type attribute in the Asset section of your Xml file?");
logger.LogImportantMessage("Type is" + type);
return type;
}
private object ReadObject(XmlReader reader, Type type, ContentBuildLogger logger)
{
//TODO: Get all other elements from the xml file and add them to a dictionary.
var props = new Dictionary<string, object>();
while (!reader.EOF)
{
if (reader.NodeType == XmlNodeType.Element)
{
if (!reader.HasValue && !reader.IsEmptyElement) //we have an element without value and that is not empty, that's suspicious!
{
//Is it really empty? Maybe it's a list or a dictionary?
System.Diagnostics.Debugger.Break();
}
else
props.Add(reader.Name, reader.ReadElementContentAsObject());
}
}
System.Diagnostics.Debugger.Break();
//TODO: Get all public properties of the class via reflection
//Activate instance
var result = Activator.CreateInstance(type);
//TODO: Check if there is a pendant for every entry
//TODO: Match every property with its value
//Return the whole construct
return result;
}
}
}

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@ -0,0 +1,23 @@
using System;
using System.Xml;
namespace ANX.Framework.Content.Pipeline.Serialization
{
public static class XmlReaderExtensions
{
/// <summary>
/// Checks if the current document contains the given element.
/// </summary>
/// <param name="xmlReader"></param>
/// <param name="name">Name of the element</param>
/// <returns></returns>
public static bool CheckForElement(this XmlReader xmlReader, string name)
{
if (string.IsNullOrEmpty(name))
{
throw new ArgumentException("Element name can not be null!");
}
return xmlReader.MoveToContent() == XmlNodeType.Element && xmlReader.Name == name;
}
}
}