Introduction to Composite WPF (CAL, Prism): Part 2

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Reflection;
using System.Collections;
using System.Resources;

namespace JamSoft.CALDemo.Modules.SkinManager
{
	internal class SkinBamlResolver : MarshalByRefObject, ISkinBamlResolver
	{
		#region ISkinResolver Members

		List<Stream> ISkinBamlResolver.GetSkinBamlStreams(AssemblyName skinAssemblyName)
		{
			ISkinBamlResolver resolver = this as ISkinBamlResolver;
			return resolver.GetSkinBamlStreams(skinAssemblyName, string.Empty);
		}

		List<Stream> ISkinBamlResolver.GetSkinBamlStreams(AssemblyName skinAssemblyName, string bamlResourceName)
		{
			List<Stream> skinBamlStreams = new List<Stream>();
			Assembly skinAssembly = Assembly.Load(skinAssemblyName);
			string[] resourcesNames = skinAssembly.GetManifestResourceNames();
			foreach (string resourceName in resourcesNames)
			{
                ManifestResourceInfo resourceInfo = skinAssembly.GetManifestResourceInfo(resourceName);
                if (resourceInfo.ResourceLocation != ResourceLocation.ContainedInAnotherAssembly)
                {
                    Stream resourceStream = skinAssembly.GetManifestResourceStream(resourceName);

                    using (ResourceReader resourceReader = new ResourceReader(resourceStream))
                    {
                        foreach (DictionaryEntry entry in resourceReader)
                        {
                            if (IsRelevantResource(entry, bamlResourceName))
                            {
                                skinBamlStreams.Add(entry.Value as Stream);
                            }

                        }
                    }
                }
			}
			return skinBamlStreams;
		}

		private bool IsRelevantResource(DictionaryEntry entry, string resourceName)
		{
			string entryName = entry.Key as string;
			string extension = Path.GetExtension(entryName);
			return
				string.Compare(extension, ".baml", true) == 0	&&											// the resource has a .baml extension
				entry.Value is Stream							&&											// the resource is a Stream
				(string.IsNullOrEmpty(resourceName) || string.Compare(resourceName, entryName, true) == 0);	// the resource name requested equals to current resource name
		}

		#endregion
	}
}