/// <summary>
/// Uninstalls the assembly resolver.
/// </summary>
public static void Clear()
{
ChoAssemblyManager.Clear();
AppDomain.CurrentDomain.AssemblyResolve -=
new ResolveEventHandler(AssemblyResolve);
AppDomain.CurrentDomain.AssemblyLoad -=
new AssemblyLoadEventHandler(AssemblyLoad);
}
/// <summary>
/// Occurs when an assembly is loaded. The loaded assembly is added
/// to the assembly cache.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="args">An <see cref="AssemblyLoadEventArgs" /> that contains the event data.</param>
private static void AssemblyLoad(object sender, AssemblyLoadEventArgs args)
{
ChoAssemblyManager.AddAssemblyToCache(args.LoadedAssembly);
}
/// <summary>
/// Resolves an assembly not found by the system using the assembly
/// cache.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="args">A <see cref="ResolveEventArgs" /> that contains the event data.</param>
/// <returns>
/// The loaded assembly, or <see langword="null" /> if not found.
/// </returns>
private static Assembly AssemblyResolve(object sender, ResolveEventArgs args)
{
bool isFullName = args.Name.IndexOf("Version=") != -1;
// first try to find an already loaded assembly
Assembly[] assemblies = AppDomain.CurrentDomain.GetAssemblies();
foreach (Assembly assembly in assemblies)
{
if (isFullName)
{
if (assembly.FullName == args.Name)
{
// return assembly from AppDomain
return(assembly);
}
}
else if (assembly.GetName(false).Name == args.Name)
{
// return assembly from AppDomain
return(assembly);
}
}
if (ChoAssemblyManager.ContainsAsMissingAssembly(args.Name))
{
return(null);
}
// find assembly in cache
if (ChoAssemblyManager.ContainsAssembly(args.Name))
{
// return assembly from cache
return((Assembly)ChoAssemblyManager.GetAssemblyFromCache(args.Name));
}
else
{
//String resourceName = "AssemblyLoadingAndReflection." + new AssemblyName(args.Name).Name + ".dll";
//if (Assembly.GetExecutingAssembly().GetManifestResourceInfo(resourceName) != null)
//{
// using (var stream = Assembly.GetExecutingAssembly().GetManifestResourceStream(resourceName))
// {
// Byte[] assemblyData = new Byte[stream.Length];
// stream.Read(assemblyData, 0, assemblyData.Length);
// return Assembly.Load(assemblyData);
// }
//}
string assmeblyFileName = null;
string[] asms = args.Name.Split(new char[] { ',' });
bool fileFound = false;
foreach (string path in _paths)
{
if (path == null || path.Trim().Length == 0)
{
continue;
}
assmeblyFileName = Path.Combine(path, asms[0] + ".dll");
if (File.Exists(assmeblyFileName))
{
fileFound = true;
break;
}
}
if (fileFound)
{
//if (ChoCodeBase.Me.LoadAssemblyFromFile)
return(Assembly.LoadFile(assmeblyFileName));
//else
// return Assembly.Load(ChoFile.ReadAllBytes(assmeblyFileName));
}
else if (!assmeblyFileName.IsNullOrEmpty())
{
ChoAssemblyManager.AddMissingAssembly(args.Name);
}
}
return(null);
}
