public override void ExtensionRemoved(ExtensionLoadingContext ctx, DependencyDescriptor dependency)
{
if (_assemblyProbingFolder.AssemblyExists(dependency.Name))
{
ctx.DeleteActions.Add(
() => {
Logger.Information("ExtensionRemoved: Deleting assembly \"{0}\" from probing directory", dependency.Name);
_assemblyProbingFolder.DeleteAssembly(dependency.Name);
});
// We need to restart the appDomain if the assembly is loaded
if (_hostEnvironment.IsAssemblyLoaded(dependency.Name))
{
Logger.Information("ExtensionRemoved: Module \"{0}\" is removed and its assembly is loaded, forcing AppDomain restart", dependency.Name);
ctx.RestartAppDomain = true;
}
}
}
/// <summary>
/// 扩展停用。
/// </summary>
/// <param name="context">扩展装载上下文。</param>
/// <param name="descriptor">扩展描述符条目。</param>
public override void ExtensionDeactivated(ExtensionLoadingContext context, ExtensionDescriptorEntry descriptor)
{
if (!_assemblyProbingFolder.AssemblyExists(new AssemblyDescriptor(descriptor.Id)))
{
return;
}
context.DeleteActions.Add(
() =>
{
Logger.Information("ExtensionDeactivated: 删除在探测目录中的程序集 \"{0}\"", descriptor.Id);
_assemblyProbingFolder.DeleteAssembly(descriptor.Id);
});
//如果程序集已经被加载，需要重新启动AppDomain
if (!_hostEnvironment.IsAssemblyLoaded(descriptor.Id))
{
return;
}
Logger.Information("ExtensionDeactivated: 模块 \"{0}\" 已停用，它的程序集已经被加载，迫使AppDomain重启", descriptor.Id);
context.RestartAppDomain = true;
}