public void UnloadExtension(string fileName, bool autoInitialize = false)
{
string assemblyName = Path.GetFileName(fileName);
ExtensionDomain existExtensionDomain = _extensionDomainList.Find(ed => ed.AssemblyName == assemblyName);
if (existExtensionDomain == null)
{
return;
}
existExtensionDomain.Proxy.Uninitialize();
if (!_isUseSeparateAppdomain)
{
existExtensionDomain.IsAbandoned = true;
Console.WriteLine(
$"[Warning - {DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}/ExtensionManager]:You can not unload any extension from default appdomain,you may need to enable useSeparateAppdomain to unload extension at runtime.");
}
else
{
_extensionDomainList.Remove(existExtensionDomain);
AppDomain.Unload(existExtensionDomain.Domain);
}
}
public void LoadExtension(string fileName, bool autoInitialize = false)
{
if (!File.Exists(fileName))
{
return;
}
string assemblyName = Path.GetFileName(fileName);
if (!_isUseSeparateAppdomain && Array.Find(AppDomain.CurrentDomain.GetAssemblies(),
assembly => assembly.GetName().Name == Path.GetFileNameWithoutExtension(fileName)) != null)
{
Console.WriteLine(
$"[Warning - {DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}/ExtensionManager]:An existing extension has been loaded in default appdomain.");
return;
}
ExtensionDomain existExtensionDomain = _extensionDomainList.Find(ed => ed.AssemblyName == assemblyName);
if (existExtensionDomain != null && _isUseSeparateAppdomain)
{
existExtensionDomain.Proxy.Uninitialize();
_extensionDomainList.Remove(existExtensionDomain);
}
ExtensionProxy proxy;
AppDomain ownerDomain;
if (_isUseSeparateAppdomain)
{
Evidence evidence = new Evidence();
AppDomainSetup appDomainSetup = new AppDomainSetup();
appDomainSetup.ShadowCopyFiles = "true";
appDomainSetup.ApplicationBase = Environment.CurrentDirectory;
appDomainSetup.ApplicationBase = AppDomain.CurrentDomain.BaseDirectory;
ownerDomain = AppDomain.CreateDomain(fileName, evidence, appDomainSetup);
Type type = typeof(ExtensionProxy);
proxy =
(ExtensionProxy)ownerDomain.CreateInstanceAndUnwrap(type.Assembly.FullName, type.FullName);
}
else
{
ownerDomain = AppDomain.CurrentDomain;
proxy = new ExtensionProxy();
}
proxy.SetEnvironment(ExtensionManager.GetInstance(), EventRouter.GetInstance(), CronTab.GetInstance(),
IOManager.GetDefaultDataStorage(), IOManager.GetRootPath());
proxy.LoadExtension(fileName);
_extensionDomainList.Add(new ExtensionDomain()
{
Domain = ownerDomain,
Proxy = proxy,
AssemblyName = assemblyName,
IsAbandoned = false
});
if (autoInitialize)
{
proxy.Initialize();
}
if (existExtensionDomain != null && _isUseSeparateAppdomain)
{
AppDomain.Unload(existExtensionDomain.Domain);
}
}
