public static IEnumerable <Assembly> GetAssemblies(string path, IAssemblyLoaderContainer assemblyLoaderContainer, IAssemblyLoadContextAccessor assemblyLoadContextAccessor, ILibraryManager libraryManager)
{
List <Assembly> assemblies = new List <Assembly>();
IAssemblyLoadContext assemblyLoadContext = assemblyLoadContextAccessor.Default;
using (assemblyLoaderContainer.AddLoader(new DirectoryAssemblyLoader(path, assemblyLoadContext)))
{
foreach (string extensionPath in Directory.EnumerateFiles(path, "*.dll"))
{
string extensionFilename = Path.GetFileNameWithoutExtension(extensionPath);
assemblies.Add(assemblyLoadContext.Load(extensionFilename));
}
}
// We must not load all of the assemblies
foreach (Library library in libraryManager.GetLibraries())
{
if (AssemblyManager.IsCandidateLibrary(libraryManager, library))
{
assemblies.AddRange(library.Assemblies.Select(an => assemblyLoadContext.Load(an)));
}
}
return(assemblies);
}
public static T CreateService <T>(IServiceProvider sp, IAssemblyLoadContext loadContext, TypeInformation typeInfo)
{
var assembly = loadContext.Load(typeInfo.AssemblyName);
var type = assembly.GetType(typeInfo.TypeName);
return((T)ActivatorUtilities.CreateInstance(sp, type));
}
public override Assembly LoadAssembly(AssemblyName assemblyName)
{
try
{
return(_defaultContext.Load(assemblyName));
}
catch (FileNotFoundException)
{
return(LoadWithoutDefault(assemblyName));
}
}
public override Assembly LoadAssembly(AssemblyName assemblyName)
{
try
{
return(_defaultContext.Load(assemblyName));
}
catch (FileNotFoundException)
{
return(_projectAssemblyLoader.Load(assemblyName, this) ??
_nugetAssemblyLoader.Load(assemblyName, this));
}
}
public IProjectCompiler GetCompiler(TypeInformation provider, IAssemblyLoadContext loadContext)
{
// TODO: Optimize the default compiler case by using the default load context directly
var services = new ServiceProvider(_context.Services);
services.Add(typeof(IAssemblyLoadContext), loadContext);
var assembly = loadContext.Load(provider.AssemblyName);
var type = assembly.GetType(provider.TypeName);
return (IProjectCompiler)ActivatorUtilities.CreateInstance(services, type);
}
public IProjectCompiler GetCompiler(TypeInformation provider, IAssemblyLoadContext loadContext)
{
// TODO: Optimize the default compiler case by using the default load context directly
var services = new ServiceProvider(_context.Services);
services.Add(typeof(IAssemblyLoadContext), loadContext);
var assembly = loadContext.Load(provider.AssemblyName);
var type = assembly.GetType(provider.TypeName);
return((IProjectCompiler)ActivatorUtilities.CreateInstance(services, type));
}
public override Assembly LoadAssembly(string name)
{
try
{
return(_defaultContext.Load(name));
}
#if ASPNET50
catch (FileNotFoundException)
#else
catch (FileLoadException)
#endif
{
return(_projectAssemblyLoader.Load(name, this) ??
_nugetAssemblyLoader.Load(name, this));
}
}
public static IEnumerable <Assembly> LoadAssemblies(string path, IAssemblyLoaderContainer assemblyLoaderContainer, IAssemblyLoadContextAccessor assemblyLoadContextAccessor)
{
List <Assembly> assemblies = new List <Assembly>();
IAssemblyLoadContext assemblyLoadContext = assemblyLoadContextAccessor.Default;
using (assemblyLoaderContainer.AddLoader(new DirectoryAssemblyLoader(path, assemblyLoadContext)))
{
foreach (string extensionPath in Directory.EnumerateFiles(path, "*.dll"))
{
string extensionFilename = Path.GetFileNameWithoutExtension(extensionPath);
assemblies.Add(assemblyLoadContext.Load(extensionFilename));
}
}
return(assemblies);
}
private IEnumerable <TypeInfo> GetExportedTypesCore(AssemblyName assemblyName)
{
var assembly = _loadContext.Load(assemblyName.Name);
return(assembly.ExportedTypes.Select(type => type.GetTypeInfo()));
}
protected override IEnumerable <TypeInfo> GetExportedTypes(AssemblyName assemblyName)
{
var assembly = _assemblyLoadContext.Load(assemblyName.FullName);
return(assembly.ExportedTypes.Select(type => type.GetTypeInfo()));
}
public static Assembly Load(this IAssemblyLoadContext loadContext, string name)
{
return(loadContext.Load(new AssemblyName(name)));
}
private PluginResponseMessage RegisterPlugin(
PluginMessage message,
IAssemblyLoadContext assemblyLoadContext)
{
var registerData = message.Data.ToObject <PluginRegisterData>();
var response = new RegisterPluginResponseMessage
{
MessageName = RegisterPluginMessageName
};
var pluginId = message.PluginId;
var registerDataTypeCacheKey = registerData.GetFullTypeCacheKey();
IPlugin plugin;
Type pluginType;
if (!_pluginTypeCache.TryGetValue(registerDataTypeCacheKey, out pluginType))
{
try
{
Assembly assembly;
if (!_assemblyCache.TryGetValue(registerData.AssemblyName, out assembly))
{
assembly = assemblyLoadContext.Load(registerData.AssemblyName);
}
pluginType = assembly.GetType(registerData.TypeName);
}
catch (Exception exception)
{
response.Error = exception.Message;
return(response);
}
}
if (pluginType == null)
{
response.Error = Resources.FormatPlugin_TypeCouldNotBeLocatedInAssembly(
pluginId,
registerData.TypeName,
registerData.AssemblyName);
return(response);
}
else
{
// We build out a custom plugin service provider to add a PluginMessageBroker and
// IAssemblyLoadContext to the potential services that can be used to construct an IPlugin.
var pluginServiceProvider = new PluginServiceProvider(
_hostServices,
messageBroker: new PluginMessageBroker(pluginId, _sendMessageMethod));
plugin = ActivatorUtilities.CreateInstance(pluginServiceProvider, pluginType) as IPlugin;
if (plugin == null)
{
response.Error = Resources.FormatPlugin_CannotProcessMessageInvalidPluginType(
pluginId,
pluginType.FullName,
typeof(IPlugin).FullName);
return(response);
}
}
Debug.Assert(plugin != null);
int resolvedProtocol;
if (!registerData.Protocol.HasValue)
{
// Protocol wasn't provided, use the plugin's protocol.
resolvedProtocol = plugin.Protocol;
}
else
{
// Client and plugin protocols are max values; meaning support is <= value. The goal in this method is
// to return the maximum protocol supported by both parties (client and plugin).
resolvedProtocol = Math.Min(registerData.Protocol.Value, plugin.Protocol);
// Update the plugins protocol to be the resolved protocol.
plugin.Protocol = resolvedProtocol;
}
_registeredPlugins[pluginId] = plugin;
response.Protocol = resolvedProtocol;
return(response);
}
private PluginResponseMessage RegisterPlugin(
PluginMessage message,
IAssemblyLoadContext assemblyLoadContext)
{
var registerData = message.Data.ToObject<PluginRegisterData>();
var response = new RegisterPluginResponseMessage
{
MessageName = RegisterPluginMessageName
};
var pluginId = message.PluginId;
var registerDataTypeCacheKey = registerData.GetFullTypeCacheKey();
IPlugin plugin;
Type pluginType;
if (!_pluginTypeCache.TryGetValue(registerDataTypeCacheKey, out pluginType))
{
try
{
Assembly assembly;
if (!_assemblyCache.TryGetValue(registerData.AssemblyName, out assembly))
{
assembly = assemblyLoadContext.Load(registerData.AssemblyName);
}
pluginType = assembly.GetType(registerData.TypeName);
}
catch (Exception exception)
{
response.Error = exception.Message;
return response;
}
}
if (pluginType == null)
{
response.Error = Resources.FormatPlugin_TypeCouldNotBeLocatedInAssembly(
pluginId,
registerData.TypeName,
registerData.AssemblyName);
return response;
}
else
{
// We build out a custom plugin service provider to add a PluginMessageBroker and
// IAssemblyLoadContext to the potential services that can be used to construct an IPlugin.
var pluginServiceProvider = new PluginServiceProvider(
_hostServices,
messageBroker: new PluginMessageBroker(pluginId, _sendMessageMethod));
plugin = ActivatorUtilities.CreateInstance(pluginServiceProvider, pluginType) as IPlugin;
if (plugin == null)
{
response.Error = Resources.FormatPlugin_CannotProcessMessageInvalidPluginType(
pluginId,
pluginType.FullName,
typeof(IPlugin).FullName);
return response;
}
}
Debug.Assert(plugin != null);
int resolvedProtocol;
if (!registerData.Protocol.HasValue)
{
// Protocol wasn't provided, use the plugin's protocol.
resolvedProtocol = plugin.Protocol;
}
else
{
// Client and plugin protocols are max values; meaning support is <= value. The goal in this method is
// to return the maximum protocol supported by both parties (client and plugin).
resolvedProtocol = Math.Min(registerData.Protocol.Value, plugin.Protocol);
// Update the plugins protocol to be the resolved protocol.
plugin.Protocol = resolvedProtocol;
}
_registeredPlugins[pluginId] = plugin;
response.Protocol = resolvedProtocol;
return response;
}
private PluginResponseMessage RegisterPlugin(
PluginMessage message,
IAssemblyLoadContext assemblyLoadContext)
{
var registerData = message.Data.ToObject<PluginRegisterData>();
var response = new PluginResponseMessage
{
MessageName = RegisterPluginMessageName
};
var pluginId = message.PluginId;
var registerDataTypeCacheKey = registerData.GetFullTypeCacheKey();
IPlugin plugin;
Type pluginType;
if (!_pluginTypeCache.TryGetValue(registerDataTypeCacheKey, out pluginType))
{
try
{
Assembly assembly;
if (!_assemblyCache.TryGetValue(registerData.AssemblyName, out assembly))
{
assembly = assemblyLoadContext.Load(registerData.AssemblyName);
}
pluginType = assembly.GetType(registerData.TypeName);
}
catch (Exception exception)
{
response.Error = exception.Message;
return response;
}
}
if (pluginType == null)
{
response.Error = Resources.FormatPlugin_TypeCouldNotBeLocatedInAssembly(
pluginId,
registerData.TypeName,
registerData.AssemblyName);
return response;
}
else
{
// We build out a custom plugin service provider to add a PluginMessageBroker and
// IAssemblyLoadContext to the potential services that can be used to construct an IPlugin.
var pluginServiceProvider = new PluginServiceProvider(
_hostServices,
messageBroker: new PluginMessageBroker(pluginId, _sendMessageMethod));
plugin = ActivatorUtilities.CreateInstance(pluginServiceProvider, pluginType) as IPlugin;
if (plugin == null)
{
response.Error = Resources.FormatPlugin_CannotProcessMessageInvalidPluginType(
pluginId,
pluginType.FullName,
typeof(IPlugin).FullName);
return response;
}
}
Debug.Assert(plugin != null);
_registeredPlugins[pluginId] = plugin;
response.Success = true;
return response;
}
private PluginResponseMessage RegisterPlugin(
PluginMessage message,
IAssemblyLoadContext assemblyLoadContext)
{
var registerData = message.Data.ToObject <PluginRegisterData>();
var response = new PluginResponseMessage
{
MessageName = RegisterPluginMessageName
};
var pluginId = message.PluginId;
var registerDataTypeCacheKey = registerData.GetFullTypeCacheKey();
IPlugin plugin;
Type pluginType;
if (!_pluginTypeCache.TryGetValue(registerDataTypeCacheKey, out pluginType))
{
try
{
Assembly assembly;
if (!_assemblyCache.TryGetValue(registerData.AssemblyName, out assembly))
{
assembly = assemblyLoadContext.Load(registerData.AssemblyName);
}
pluginType = assembly.GetType(registerData.TypeName);
}
catch (Exception exception)
{
response.Error = exception.Message;
return(response);
}
}
if (pluginType == null)
{
response.Error = Resources.FormatPlugin_TypeCouldNotBeLocatedInAssembly(
pluginId,
registerData.TypeName,
registerData.AssemblyName);
return(response);
}
else
{
// We build out a custom plugin service provider to add a PluginMessageBroker and
// IAssemblyLoadContext to the potential services that can be used to construct an IPlugin.
var pluginServiceProvider = new PluginServiceProvider(
_hostServices,
messageBroker: new PluginMessageBroker(pluginId, _sendMessageMethod));
plugin = ActivatorUtilities.CreateInstance(pluginServiceProvider, pluginType) as IPlugin;
if (plugin == null)
{
response.Error = Resources.FormatPlugin_CannotProcessMessageInvalidPluginType(
pluginId,
pluginType.FullName,
typeof(IPlugin).FullName);
return(response);
}
}
Debug.Assert(plugin != null);
_registeredPlugins[pluginId] = plugin;
response.Success = true;
return(response);
}
public Assembly Load(string name)
{
return(_context.Load(name));
}
public Assembly Load(AssemblyName assemblyName)
{
return(_assemblyLoadContext.Load(assemblyName));
}