public Boolean Register(IMessageTarget target)
{
String id = target.Id;
if (String.IsNullOrWhiteSpace(id))
{
return(false);
}
lock (_regedit)
{
if (_regedit.ContainsKey(id))
{
throw new InvalidOperationException($"The id {id} has been Existed");
}
_regedit.Add(id, target);
}
AddinProxy proxy = target as AddinProxy;
if (proxy != null)
{
proxy.MessageService = this;
proxy.Owner.DomainUnload += OnDomainUnload;
}
target.MessageDispatcher?.Start();
#if DEBUG
Console.WriteLine($"Register target.{target.Id}");
#endif
return(true);
}
public void Unregister(String id)
{
if (String.IsNullOrWhiteSpace(id))
{
return;
}
IMessageTarget target = null;
lock (_regedit)
{
if (!_regedit.ContainsKey(id))
{
return;
}
target = _regedit[id];
_regedit.Remove(id);
}
target.MessageDispatcher?.Stop();
AddinProxy proxy = target as AddinProxy;
if (proxy != null)
{
proxy.MessageService = null;
}
#if DEBUG
Console.WriteLine($"Unregister target.{target.Id}");
#endif
}
private static void SendMessageImpl(Message message)
{
if (AppDomain.CurrentDomain.IsDefaultAppDomain())
{
MessageService ms = AppDomain.CurrentDomain.GetData("ms") as MessageService;
ms?.Transmit(message);
}
else
{
AddinProxy proxy = AppDomain.CurrentDomain.GetData("proxy") as AddinProxy;
proxy?.Send(message);
}
}
public void Unload(IAddin addin)
{
if (addin == null)
{
throw new ArgumentNullException("addin");
}
#if DEBUG
Console.WriteLine($"Destroy addin {addin.Id}");
#endif
AddinProxy proxy = addin as AddinProxy;
if (proxy == null)
{
return;
}
AppDomain.Unload(proxy.Owner);
}
public static Boolean IsFromHost(this IMessageTarget target, Message message)
{
if (message.Source == MessageService.AddinHostId)
{
return(true);
}
String hostActualId = null;
if (AppDomain.CurrentDomain.IsDefaultAppDomain())
{
MessageService ms = AppDomain.CurrentDomain.GetData("ms") as MessageService;
hostActualId = ms?.GetHostActualId();
}
else
{
AddinProxy proxy = AppDomain.CurrentDomain.GetData("proxy") as AddinProxy;
hostActualId = proxy?.GetHostActualId();
}
return(hostActualId == message.Source);
}
protected virtual IAddin LoadOnIsolatedAppDomain(Type addinType, AddinInfo info)
{
String id = info.Id;
AppDomainSetup setup = new AppDomainSetup();
setup.ApplicationName = id;
setup.ApplicationBase = Path.GetDirectoryName(addinType.Assembly.Location);
String selfConfigFile = addinType.Assembly.Location + ".config";
if (File.Exists(selfConfigFile))
{
setup.ConfigurationFile = selfConfigFile;
}
else
{
setup.ConfigurationFile = AppDomain.CurrentDomain.SetupInformation.ConfigurationFile;
}
AppDomain domain = AppDomain.CreateDomain($"AddinDomain#{id}", null, setup);
try
{
AddinProxy proxy = (AddinProxy)domain.CreateInstanceAndUnwrap(addinType.Assembly.FullName, addinType.FullName + "Proxy");
if (proxy.Id != id)
{
throw new InvalidDataException("The id in config not match");
}
domain.SetData("proxy", proxy);
domain.SetData("id", id);
proxy.Owner = domain;
#if DEBUG
Console.WriteLine($"Created isolated addin {proxy.Id} in {domain.FriendlyName}");
#endif
return(proxy);
}
catch (MissingMemberException ex)
{
AppDomain.Unload(domain);
return(null);
}
}