private AssemblyEntry FindCacheByPath(string path)
{
AssemblyEntry entry3;
using (ReaderWriterLockHelper.CreateReaderLock(this._lock))
{
AssemblyEntry entry = null;
using (Dictionary <string, AssemblyEntry> .ValueCollection.Enumerator enumerator = this.Cache.Values.GetEnumerator())
{
AssemblyEntry current;
while (enumerator.MoveNext())
{
current = enumerator.Current;
if ((current != null) && (current.AssemblyPath == path))
{
goto Label_0046;
}
}
goto Label_0058;
Label_0046:
entry = current;
}
Label_0058:
entry3 = entry;
}
return(entry3);
}
/// <summary>
/// 将插件本地程序集添加到ASP.NET页面预编译引用程序集列表。这个方法一般是内部使用。
/// </summary>
/// <param name="bundleSymbolicName">插件唯一名称。</param>
/// <returns>返回插件所有本地程序集。</returns>
public virtual ICollection <Assembly> AddReferencedAssemblies(string bundleSymbolicName)
{
//Check if this bundle still exist or not.
BundleData bundleData = BundleRuntime.Instance.GetFirstOrDefaultService <IBundleInstallerService>().GetBundleDataByName(bundleSymbolicName);
if (bundleData == null)
{
FileLogUtility.Debug(string.Format("Bundle '{0}' does not exist when trying to add its assemblies to referenced assemblies.",
bundleSymbolicName));
return(new List <Assembly>());
}
using (ReaderWriterLockHelper.CreateReaderLock(CacheLock))
{
//already registered its assembiles
ICollection <Assembly> registeredItems;
if (RegisteredBunldeCache.TryGetValue(bundleData, out registeredItems))
{
return(registeredItems);
}
IServiceManager serviceContainer = BundleRuntime.Framework.ServiceContainer;
IRuntimeService service = serviceContainer.GetFirstOrDefaultService <IRuntimeService>();
List <Assembly> assemlbies = service.LoadBundleAssembly(bundleSymbolicName);
FileLogUtility.Debug(string.Format("Add the assemblies of bundle '{0}' to top level referenced assemblies.", bundleSymbolicName));
assemlbies.ForEach(AddReferencedAssembly);
//cache the assemblies
using (ReaderWriterLockHelper.CreateWriterLock(CacheLock))
{
RegisteredBunldeCache[bundleData] = assemlbies;
}
return(assemlbies);
}
}
public List <ExtensionPoint> GetExtensionPoints()
{
using (ReaderWriterLockHelper.CreateReaderLock(this._locker))
{
List <ExtensionPoint> list = new List <ExtensionPoint>();
list.AddRange(this.ExtensionPoints);
return(list);
}
}
public Assembly ResolveAssembly(IAssemblyMetadata metadata, AssemblyName assemblyName)
{
using (ReaderWriterLockHelper.CreateReaderLock(this._lock))
{
AssemblyEntry entry;
if ((assemblyName != null) && this.Cache.TryGetValue(assemblyName.FullName, out entry))
{
return(entry.Assembly);
}
}
return(this.ResolveAssembly(metadata, assembly => StringUtility.IsAssemblyFullNameMatch(assembly, assemblyName, true), true));
}
public List <Extension> GetExtensions(string extensionPoint)
{
using (ReaderWriterLockHelper.CreateReaderLock(this._locker))
{
List <Extension> list2;
List <Extension> list = new List <Extension>();
if (this.Extensions.TryGetValue(extensionPoint, out list2))
{
list.AddRange(list2);
}
return(list);
}
}
public List <ExtensionPoint> GetExtensionPoints(IBundle bundle)
{
using (ReaderWriterLockHelper.CreateReaderLock(this._locker))
{
List <ExtensionPoint> list = new List <ExtensionPoint>();
foreach (ExtensionPoint point in this.ExtensionPoints)
{
if (point.Owner == bundle)
{
list.Add(point);
}
}
return(list);
}
}
protected bool TryGetCachedType(string className, out Type type)
{
type = null;
if (BundleRuntime.Instance.EnableBundleClassLoaderCache)
{
using (ReaderWriterLockHelper.CreateReaderLock(_cacheLock))
{
if (_classAssemblyNameCache.Contains(className))
{
type = _classAssemblyNameCache[className] as Type;
return(true);
}
}
}
return(false);
}
public static void RemoveReferencedAssemblies(BundleData bundleData)
{
using (ReaderWriterLockHelper.CreateReaderLock(_cacheLock))
{
if (_registeredBunldeCache.ContainsKey(bundleData))
{
IList <Assembly> removedAssemblies = _registeredBunldeCache[bundleData];
using (ReaderWriterLockHelper.CreateWriterLock(_cacheLock))
{
_registeredBunldeCache.Remove(bundleData);
}
ResetTopLevelReferencedAssemblies(removedAssemblies);
FileLogUtility.Debug(
string.Format("Remove the assemblies of bundle '{0}' from top level referenced assemblies since the bundle is stopping.",
bundleData.SymbolicName));
}
}
}
/// <summary>
/// 当启动/停止插件时，需要对TopLevelAssemblies重新处理确保同一个程序集的只有最高版本出现在列表中。
/// 详细请查看“模块层与类加载设计规范的2.7小节”。
/// </summary>
/// <param name="removedAssemblies"></param>
public static void ResetTopLevelReferencedAssemblies(IList <Assembly> removedAssemblies)
{
using (ReaderWriterLockHelper.CreateReaderLock(_cacheLock))
{
if (removedAssemblies != null)
{
foreach (Assembly current in removedAssemblies)
{
RemoveReferencedAssemlby(current);
}
}
List <Assembly> list = new List <Assembly>();
foreach (IList <Assembly> current2 in _registeredBunldeCache.Values)
{
list.AddRange(current2);
}
list.Sort(new AssemblyComparer());
list.ForEach(AddReferencedAssembly);
}
}
public static void AddReferencedAssemblies(BundleData bundleData)
{
using (ReaderWriterLockHelper.CreateReaderLock(_cacheLock))
{
if (!_registeredBunldeCache.ContainsKey(bundleData))
{
IList <Assembly> list = AddReferencedAssemblies(bundleData.SymbolicName);
FileLogUtility.Debug(
string.Format("Add the assemblies of bundle '{0}' to top level referenced assemblies since the bundle is active.",
bundleData.SymbolicName));
if (list != null && list.Count > 0)
{
using (ReaderWriterLockHelper.CreateWriterLock(_cacheLock))
{
_registeredBunldeCache[bundleData] = list;
}
}
}
}
}
public Assembly ResolveAssembly(AssemblyName assebmlyFullName)
{
Func <AssemblyName, bool> stopWhen = null;
using (ReaderWriterLockHelper.CreateReaderLock(this._lock))
{
AssemblyEntry entry;
if (this.Cache.TryGetValue(assebmlyFullName.FullName, out entry))
{
return(entry.Assembly);
}
}
IAssemblyMetadataNode node = this.Resolver.ResolvedAssemblyMetadataNodes.Find(delegate(IAssemblyMetadataNode resolvedAssemblyNode) {
IAssemblyMetadata metadata = resolvedAssemblyNode.Metadata as IAssemblyMetadata;
AssertUtility.NotNull(metadata);
if (assebmlyFullName.Version == null)
{
if (!metadata.MultipleVersions)
{
return(assebmlyFullName.Name.Equals(metadata.AssemblyName.Name));
}
}
else if (StringUtility.IsAssemblyFullNameMatch(metadata.AssemblyName, assebmlyFullName, true))
{
return(true);
}
return(false);
});
if (node == null)
{
return(null);
}
if (stopWhen == null)
{
stopWhen = assembly => StringUtility.IsAssemblyFullNameMatch(assembly, assebmlyFullName, true);
}
return(this.ResolveAssembly((IAssemblyMetadata)node.Metadata, stopWhen, false));
}
public ExtensionPoint GetExtensionPoint(string extensionPoint)
{
extensionPoint = extensionPoint.Trim();
using (ReaderWriterLockHelper.CreateReaderLock(this._locker))
{
foreach (ExtensionPoint point in this.ExtensionPoints)
{
if (point.Point == extensionPoint)
{
return(point);
}
}
if (this.GetExtensions(extensionPoint).Count > 0)
{
return(new ExtensionPoint(this)
{
Point = extensionPoint
});
}
}
return(null);
}
/// <summary>
/// 将插件本地程序集添加到ASP.NET页面预编译引用程序集列表。这个方法一般是内部使用。
/// </summary>
/// <param name="bundleSymbolicName">插件唯一名称。</param>
/// <returns>返回插件所有本地程序集。</returns>
public static IList <Assembly> AddReferencedAssemblies(string bundleSymbolicName)
{
BundleData bundleDataByName =
BundleRuntime.Instance.GetFirstOrDefaultService <IBundleInstallerService>().GetBundleDataByName(bundleSymbolicName);
if (bundleDataByName == null)
{
FileLogUtility.Debug(string.Format("Bundle '{0}' does not exist when trying to add its assemblies to referenced assemblies.",
bundleSymbolicName));
return(new List <Assembly>());
}
IList <Assembly> result;
using (ReaderWriterLockHelper.CreateReaderLock(_cacheLock))
{
IList <Assembly> list;
if (_registeredBunldeCache.TryGetValue(bundleDataByName, out list))
{
result = list;
}
else
{
IServiceManager serviceContainer = BundleRuntime.Instance.Framework.ServiceContainer;
IRuntimeService firstOrDefaultService = serviceContainer.GetFirstOrDefaultService <IRuntimeService>();
List <Assembly> list2 = firstOrDefaultService.LoadBundleAssembly(bundleSymbolicName);
FileLogUtility.Debug(string.Format("Add the assemblies of bundle '{0}' to top level referenced assemblies.", bundleSymbolicName));
using (ReaderWriterLockHelper.CreateWriterLock(_cacheLock))
{
_registeredBunldeCache[bundleDataByName] = list2;
}
ResetTopLevelReferencedAssemblies(null);
result = list2;
}
}
return(result);
}
private void BundleEventListener(object sender, BundleStateChangedEventArgs args)
{
// This is in another domain, thus the HttpContext.Current is always null.
// Just comment it.
//if (HttpContext.Current == null)
//{
// return;
//}
//check if this bundle still exist.
BundleData bundleData = BundleRuntime.Instance.GetFirstOrDefaultService <IBundleInstallerService>()
.GetBundleDataByName(args.Bundle.SymbolicName);
if (bundleData == null)
{
return;
}
bool needLoad = (args.CurrentState == BundleState.Active);
if (needLoad)
{
//already registered its assemblies
using (ReaderWriterLockHelper.CreateReaderLock(CacheLock))
{
if (RegisteredBunldeCache.ContainsKey(bundleData))
{
return;
}
//register bundle assemblies to BuildManager.
ICollection <Assembly> assemblies = AddReferencedAssemblies(bundleData.SymbolicName);
FileLogUtility.Debug(
string.Format("Add the assemblies of bundle '{0}' to top level referenced assemblies since the bundle is active.",
args.Bundle.SymbolicName));
if (assemblies != null && assemblies.Count > 0)
{
using (ReaderWriterLockHelper.CreateWriterLock(CacheLock))
{
RegisteredBunldeCache[bundleData] = assemblies;
}
}
}
}
else if (args.CurrentState == BundleState.Stopping)
{
//unregister when stopping.
using (ReaderWriterLockHelper.CreateReaderLock(CacheLock))
{
if (RegisteredBunldeCache.ContainsKey(bundleData))
{
RemoveReferencedAssemblies(RegisteredBunldeCache[bundleData]);
//remove from cache.
using (ReaderWriterLockHelper.CreateWriterLock(CacheLock))
{
RegisteredBunldeCache.Remove(bundleData);
}
FileLogUtility.Debug(
string.Format("Remove the assemblies of bundle '{0}' from top level referenced assemblies since the bundle is stopping.",
args.Bundle.SymbolicName));
}
}
}
}
