/source/library/Interlace/ReactorUtilities/RemotingProxy.cs

#region Using Directives and Copyright Notice



// Copyright (c) 2007-2010, Computer Consultancy Pty Ltd

// All rights reserved.

// 

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are met:

//     * Redistributions of source code must retain the above copyright

//       notice, this list of conditions and the following disclaimer.

//     * Redistributions in binary form must reproduce the above copyright

//       notice, this list of conditions and the following disclaimer in the

//       documentation and/or other materials provided with the distribution.

//     * Neither the name of the Computer Consultancy Pty Ltd nor the

//       names of its contributors may be used to endorse or promote products

//       derived from this software without specific prior written permission.

// 

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 

// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 

// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 

// ARE DISCLAIMED. IN NO EVENT SHALL COMPUTER CONSULTANCY PTY LTD BE LIABLE 

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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 

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using System;

using System.Collections.Generic;

using System.Reflection;

using System.Text;



using Interlace.Utilities;



#endregion



namespace Interlace.ReactorUtilities

{

    public class RemotingProxy : IProxyHandler

    {

        int _stubId;

        Type _interfaceType;

        RemotingProtocol _protocol;

        string _interfaceName;

        bool _notifyProtocolOfFinalize;



        public RemotingProxy(int stubId, Type interfaceType, RemotingProtocol protocol, bool notifyProtocolOfFinalize)

        {

            _stubId = stubId;

            _interfaceType = interfaceType;

            _protocol = protocol;

            _interfaceName = _interfaceType.Name;

            _notifyProtocolOfFinalize = notifyProtocolOfFinalize;



            // TODO: Implement notifying the protocol of finalization.

        }



        public object Invoke(object proxyObject, MethodInfo method, object[] arguments)

        {

            foreach (ParameterInfo parameter in method.GetParameters())

            {

                if (parameter.ParameterType.IsByRef)

                {

                    throw new InvalidOperationException("Remoting interfaces can not include methods that " +

                        "have \"out\" or \"ref\" parameters.");

                }

            }



            Type returnType = method.ReturnType;



            if (!Deferred.IsTypedDeferred(returnType)) 

            {

                throw new InvalidOperationException("Remoting interface methods must return a deferred.");

            }



            RemotingRequest request = new RemotingRequest(_protocol.GetNextCompletionCookieAndAdvance(),

                _stubId, _interfaceName, method.Name, arguments);



            DeferredObject deferred = Activator.CreateInstance(returnType) as DeferredObject;



            RemotingRequestToken token = new RemotingRequestToken(request, deferred, returnType);



            _protocol.SendRequest(token);



            return deferred;

        }

    }

}