89 lines
3.9 KiB
C#
89 lines
3.9 KiB
C#
/*
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* Copyright (c) Contributors, http://www.openmetaverse.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSim Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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namespace Nwc.XmlRpc
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{
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using System;
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using System.Runtime.Remoting.Proxies;
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using System.Runtime.Remoting.Messaging;
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/// <summary>This class provides support for creating local proxies of XML-RPC remote objects</summary>
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/// <remarks>
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/// To create a local proxy you need to create a local C# interface and then, via <i>createProxy</i>
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/// associate that interface with a remote object at a given URL.
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/// </remarks>
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public class XmlRpcClientProxy : RealProxy
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{
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private String _remoteObjectName;
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private String _url;
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private XmlRpcRequest _client = new XmlRpcRequest();
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/// <summary>Factory method to create proxies.</summary>
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/// <remarks>
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/// To create a local proxy you need to create a local C# interface with methods that mirror those of the server object.
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/// Next, pass that interface into <c>createProxy</c> along with the object name and URL of the remote object and
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/// cast the resulting object to the specifice interface.
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/// </remarks>
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/// <param name="remoteObjectName"><c>String</c> The name of the remote object.</param>
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/// <param name="url"><c>String</c> The URL of the remote object.</param>
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/// <param name="anInterface"><c>Type</c> The typeof() of a C# interface.</param>
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/// <returns><c>Object</c> A proxy for your specified interface. Cast to appropriate type.</returns>
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public static Object createProxy(String remoteObjectName, String url, Type anInterface)
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{
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return new XmlRpcClientProxy(remoteObjectName, url, anInterface).GetTransparentProxy();
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}
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private XmlRpcClientProxy(String remoteObjectName, String url, Type t) : base(t)
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{
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_remoteObjectName = remoteObjectName;
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_url = url;
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}
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/// <summary>The local method dispatcher - do not invoke.</summary>
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override public IMessage Invoke(IMessage msg)
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{
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IMethodCallMessage methodMessage = (IMethodCallMessage)msg;
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_client.MethodName = _remoteObjectName + "." + methodMessage.MethodName;
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_client.Params.Clear();
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foreach (Object o in methodMessage.Args)
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_client.Params.Add(o);
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try
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{
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Object ret = _client.Invoke(_url);
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return new ReturnMessage(ret,null,0,
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methodMessage.LogicalCallContext, methodMessage);
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}
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catch (Exception e)
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{
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return new ReturnMessage(e, methodMessage);
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}
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}
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}
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}
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