62 lines
2.3 KiB
C#
62 lines
2.3 KiB
C#
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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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