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/*
 * Copyright 1999,2005 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.xmlrpc.client;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

import org.apache.xmlrpc.XmlRpcException;
import org.apache.xmlrpc.XmlRpcRequest;
import org.apache.xmlrpc.common.LocalStreamConnection;
import org.apache.xmlrpc.common.XmlRpcStreamRequestConfig;
import org.apache.xmlrpc.common.XmlRpcStreamRequestProcessor;
import org.xml.sax.SAXException;


/** Another local transport for debugging and testing. This one is
 * similar to the {@link org.apache.xmlrpc.client.XmlRpcLocalTransport},
 * except that it adds request serialization. In other words, it is
 * particularly well suited for development and testing of XML serialization
 * and parsing.
 */
public class XmlRpcLocalStreamTransport extends XmlRpcStreamTransport {
	private final XmlRpcStreamRequestProcessor localServer;
	private LocalStreamConnection conn;
    private XmlRpcRequest request;
	
	/** Creates a new instance.
	 * @param pClient The client, which is controlling the transport.
	 * @param pServer An instance of {@link XmlRpcStreamRequestProcessor}.
	 */
	public XmlRpcLocalStreamTransport(XmlRpcClient pClient,
			XmlRpcStreamRequestProcessor pServer) {
		super(pClient);
		localServer = pServer;
	}

	protected boolean isResponseGzipCompressed(XmlRpcStreamRequestConfig pConfig) {
		return pConfig.isGzipRequesting();
	}

	protected void close() throws XmlRpcClientException {
	}

	protected InputStream getInputStream() throws XmlRpcException {
		localServer.execute(conn.getConfig(), conn.getServerStreamConnection());
		return new ByteArrayInputStream(conn.getResponse().toByteArray());
	}

	protected ReqWriter newReqWriter(XmlRpcRequest pRequest)
            throws XmlRpcException, IOException, SAXException {
	    request = pRequest;
        return super.newReqWriter(pRequest);
    }

    protected void writeRequest(ReqWriter pWriter)
            throws XmlRpcException, IOException, SAXException {
		ByteArrayOutputStream baos = new ByteArrayOutputStream();		
		pWriter.write(baos);
		XmlRpcStreamRequestConfig config = (XmlRpcStreamRequestConfig) request.getConfig();
		conn = new LocalStreamConnection(config, new ByteArrayInputStream(baos.toByteArray()));
	}
}