InstanceContext.cs :  » 2.6.4-mono-.net-core » System.ServiceModel » System » ServiceModel » C# / CSharp Open Source

//
// InstanceContext.cs
//
// Author:
//  Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2005-2006 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;
using System.Collections.Generic;
using System.ServiceModel.Channels;
using System.ServiceModel.Dispatcher;

namespace System.ServiceModel{
  [MonoTODO]
  public sealed class InstanceContext : CommunicationObject,
    IExtensibleObject<InstanceContext>
  {
    ServiceHostBase host;
    object implementation;
    int manual_flow_limit;
    InstanceBehavior _behavior;
    bool is_user_instance_provider;
    bool is_user_context_provider;

    static InstanceContextIdleCallback idle_callback = new InstanceContextIdleCallback(NotifyIdle);

    public InstanceContext (object implementation)
      : this (null, implementation)
    {
    }

    public InstanceContext (ServiceHostBase host)
      : this (host, null)
    {
    }

    public InstanceContext (ServiceHostBase host,
      object implementation) : this(host, implementation, true)
    {}

    internal InstanceContext(ServiceHostBase host, 
      object implementation, bool userContextProvider)
    {
      this.host = host;
      this.implementation = implementation;
      is_user_context_provider = userContextProvider;
    }

    internal bool IsUserProvidedInstance {
      get {
        return is_user_instance_provider;
      }
    }

    internal bool IsUserProvidedContext {
      get {
        return is_user_context_provider;        
      }
    }

    internal InstanceBehavior Behavior {
      get {
        return _behavior;
      }
      set {
        _behavior = value;
      }
    }

    protected internal override TimeSpan DefaultCloseTimeout {
      get { return host.DefaultCloseTimeout; }
    }

    protected internal override TimeSpan DefaultOpenTimeout {
      get { return host.DefaultOpenTimeout; }
    }

    public IExtensionCollection<InstanceContext> Extensions {
      get { throw new NotImplementedException (); }
    }

    public ServiceHostBase Host {
      get { return host; }
    }

    public ICollection<IChannel> IncomingChannels {
      get { throw new NotImplementedException (); }
    }

    public int ManualFlowControlLimit {
      get { return manual_flow_limit; }
      set { manual_flow_limit = value; }
    }

    public ICollection<IChannel> OutgoingChannels {
      get { throw new NotImplementedException (); }
    }

    public object GetServiceInstance ()
    {
      return GetServiceInstance (null);
    }

    public object GetServiceInstance (Message message)
    {
      if (implementation == null && Behavior != null) {
        implementation = Behavior.GetServiceInstance (this, message, ref is_user_instance_provider);        
      }
      return implementation;        
    }

    public int IncrementManualFlowControlLimit (int incrementBy)
    {
      throw new NotImplementedException ();
    }

    internal void CloseIfIdle () {
      if (Behavior.InstanceContextProvider != null && !IsUserProvidedContext) {
        if (!Behavior.InstanceContextProvider.IsIdle (this)) {
          Behavior.InstanceContextProvider.NotifyIdle (IdleCallback, this);
        }
        else {
          if (State != CommunicationState.Closed)
            Close ();
        }
      }
    }

    static void NotifyIdle (InstanceContext ctx) {
      ctx.CloseIfIdle ();
    }    

    internal InstanceContextIdleCallback IdleCallback {
      get {
        return idle_callback;
      }
    }

    public void ReleaseServiceInstance ()
    {      
      Behavior.ReleaseServiceInstance (this, implementation);
      implementation = null;
    }

    protected override void OnAbort ()
    {
    }

    [MonoTODO]
    protected override void OnFaulted ()
    {
      base.OnFaulted ();
    }

    [MonoTODO]
    protected override void OnClosed ()
    {
      base.OnClosed ();
    }

    [MonoTODO]
    protected override void OnOpened ()
    {
      base.OnOpened ();
    }

    protected override void OnOpening ()
    {
      base.OnOpening ();
      if (Behavior != null)
        Behavior.Initialize (this);
    }

    protected override IAsyncResult OnBeginOpen (
      TimeSpan timeout, AsyncCallback callback, object state)
    {
      throw new NotImplementedException ();
    }

    protected override void OnEndOpen (IAsyncResult result)
    {
    }

    protected override void OnOpen (TimeSpan timeout)
    {
    }

    protected override IAsyncResult OnBeginClose (
      TimeSpan timeout, AsyncCallback callback, object state)
    {
      throw new NotImplementedException ();
    }

    protected override void OnEndClose (IAsyncResult result)
    {
    }

    protected override void OnClose (TimeSpan timeout)
    {
    }    
  }
}