public void LoadStreamsIntoContext(CollectibleAssemblyLoadContext context, string moduleFolder, Assembly assembly)
{
AssemblyName[] references = assembly.GetReferencedAssemblies();
foreach (AssemblyName item in references)
{
string name = item.Name;
string version = item.Version.ToString();
Stream stream = _referenceContainer.GetStream(name, version);
if (stream != null)
{
_logger.LogDebug($"Found the cached reference '{name}' v.{version}");
assembly = context.Assemblies.FirstOrDefault(a => a.GetName().Name == name);
if (assembly == null)
{
assembly = context.LoadFromStream(stream);
}
}
else
{
if (IsSharedFreamwork(name) || IsLoadedByDefault(item.FullName))
{
continue;
}
string dllName = $"{name}.dll";
string filePath = $"{moduleFolder}/{dllName}";
if (!File.Exists(filePath))
{
_logger.LogWarning($"The package '{dllName}' in '{filePath}' is missing.");
continue;
}
using (FileStream fs = new FileStream(filePath, FileMode.Open))
{
assembly = context.LoadFromStream(fs);
MemoryStream memoryStream = new MemoryStream();
fs.Position = 0;
fs.CopyTo(memoryStream);
fs.Position = 0;
memoryStream.Position = 0;
_referenceContainer.SaveStream(name, version, memoryStream);
}
}
LoadStreamsIntoContext(context, moduleFolder, assembly);
}
}
public void LoadModule(string moduleName, bool isInstall = true)
{
if (!_pluginsLoadContexts.Any(moduleName))
{
CollectibleAssemblyLoadContext context = new CollectibleAssemblyLoadContext(moduleName);
string filePath = Path.Combine(_baseDirectory, _pluginOptions.InstallBasePath, moduleName, $"{moduleName}.dll");
string referenceFolderPath = Path.Combine(_baseDirectory, _pluginOptions.InstallBasePath, moduleName);
using (FileStream fs = new FileStream(filePath, FileMode.Open))
{
Assembly assembly = context.LoadFromStream(fs);
_referenceLoader.LoadStreamsIntoContext(context, referenceFolderPath, assembly);
context.SetEntryPoint(assembly);
context.PluginAssemblyParts.Add(new PluginAssemblyPart(assembly));
if (!AdditionalReferencePathHolder.AdditionalReferencePaths.Contains(filePath))
{
AdditionalReferencePathHolder.AdditionalReferencePaths.Add(filePath);
}
}
var viewsFilePath = Path.Combine(_baseDirectory, _pluginOptions.InstallBasePath, moduleName, $"{moduleName}.Views.dll");
if (File.Exists(viewsFilePath))
{
using (FileStream fs = new FileStream(viewsFilePath, FileMode.Open))
{
Assembly assembly = context.LoadFromStream(fs);
context.PluginAssemblyParts.Add(new CompiledRazorAssemblyPart(assembly));
_referenceLoader.LoadStreamsIntoContext(context, referenceFolderPath, assembly);
}
}
var pluginWebRoot = Path.Combine(_baseDirectory, _pluginOptions.InstallBasePath, moduleName, $"wwwroot");
DirectoryCopy(pluginWebRoot, _env.WebRootPath, true);
_pluginsLoadContexts.Add(moduleName, context);
if (isInstall)
{
ModuleChangeEventHandler?.Invoke(ModuleEvent.Installed, context);
}
else
{
ModuleChangeEventHandler?.Invoke(ModuleEvent.Loaded, context);
}
}
}
