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//
// System.Runtime.Remoting.Identity.cs
//
// Author: Lluis Sanchez Gual (lluis@ideary.com)
//
// (C) 2002, Lluis Sanchez Gual
//
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Runtime.Remoting.Messaging;
using System.Runtime.Remoting.Proxies;
using System.Runtime.Remoting.Contexts;
using System.Runtime.Remoting.Lifetime;
namespace System.Runtime.Remoting
{
internal abstract class Identity
{
// An Identity object holds remoting information about
// an object. It can be used to store client side information
// (information about how to reach the remote server),
// and also to store server side information (information
// about how to dispatch messages to the object in the server).
// URI of the object
protected string _objectUri;
// Message sink to use to send a message to the remote server
protected IMessageSink _channelSink = null;
protected IMessageSink _envoySink = null;
DynamicPropertyCollection _clientDynamicProperties;
DynamicPropertyCollection _serverDynamicProperties;
// The ObjRef
protected ObjRef _objRef;
// This flag is set when the identity is removed from the uri table.
// It is needed because in some scenarios the runtime may try to
// dispose the identity twice.
bool _disposed = false;
public Identity(string objectUri)
{
_objectUri = objectUri;
}
public abstract ObjRef CreateObjRef (Type requestedType);
public bool IsFromThisAppDomain
{
get
{
return (_channelSink == null);
}
}
public IMessageSink ChannelSink
{
get { return _channelSink; }
set { _channelSink = value; }
}
public IMessageSink EnvoySink
{
get { return _envoySink; }
}
public string ObjectUri
{
get { return _objectUri; }
set { _objectUri = value; }
}
public bool IsConnected
{
get { return _objectUri != null; }
}
public bool Disposed
{
get { return _disposed; }
set { _disposed = value; }
}
public DynamicPropertyCollection ClientDynamicProperties
{
get {
if (_clientDynamicProperties == null) _clientDynamicProperties = new DynamicPropertyCollection();
return _clientDynamicProperties;
}
}
public DynamicPropertyCollection ServerDynamicProperties
{
get {
if (_serverDynamicProperties == null) _serverDynamicProperties = new DynamicPropertyCollection();
return _serverDynamicProperties;
}
}
public bool HasClientDynamicSinks
{
get { return (_clientDynamicProperties != null && _clientDynamicProperties.HasProperties); }
}
public bool HasServerDynamicSinks
{
get { return (_serverDynamicProperties != null && _serverDynamicProperties.HasProperties); }
}
public void NotifyClientDynamicSinks (bool start, IMessage req_msg, bool client_site, bool async)
{
if (_clientDynamicProperties != null && _clientDynamicProperties.HasProperties)
_clientDynamicProperties.NotifyMessage (start, req_msg, client_site, async);
}
public void NotifyServerDynamicSinks (bool start, IMessage req_msg, bool client_site, bool async)
{
if (_serverDynamicProperties != null && _serverDynamicProperties.HasProperties)
_serverDynamicProperties.NotifyMessage (start, req_msg, client_site, async);
}
}
internal class ClientIdentity : Identity
{
WeakReference _proxyReference;
public ClientIdentity (string objectUri, ObjRef objRef): base (objectUri)
{
_objRef = objRef;
_envoySink = (_objRef.EnvoyInfo != null) ? _objRef.EnvoyInfo.EnvoySinks : null;
}
public MarshalByRefObject ClientProxy
{
get { return (MarshalByRefObject) _proxyReference?.Target; }
set { _proxyReference = new WeakReference (value); }
}
public override ObjRef CreateObjRef (Type requestedType)
{
return _objRef;
}
public string TargetUri
{
get { return _objRef.URI; }
}
}
}
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