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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.qpid.management.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.muse.util.xml.XmlUtils;
import org.apache.qpid.management.Messages;
import org.apache.qpid.management.wsdm.muse.engine.WSDMAdapterIsolationLayer;
import org.apache.qpid.qman.debug.XmlDebugger;
import org.apache.qpid.transport.util.Logger;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
/**
* QMan Adapter facade.
* This is the main requestor entry point of the WS-DM connector / adapter.
* All WSDM requests will be handled (at higher level) by this servlet.
*
* @author Andrea Gazzarini
*/
public class WSDMAdapter extends HttpServlet
{
private static final long serialVersionUID = 6149614872902682208L;
private final static Logger LOGGER = Logger.get(WSDMAdapter.class);
private WSDMAdapterIsolationLayer _isolationLayer;
@Override
public void init() throws ServletException {
LOGGER.debug(Messages.QMAN_000026_WSDM_ADAPTER_STARTS);
_isolationLayer = new WSDMAdapterIsolationLayer(getServletContext());
_isolationLayer.initialize();
LOGGER.debug(Messages.QMAN_000027_WSDM_ADAPTER_STARTED);
}
/**
* Accepts http requests containing a soap envelope (request) and therefore
* acts as the main entry point of whole WS process.
*
* @param request the http request.
* @param response the http response.
* @throws ServletException in case of application failure.
* @throws IOException in case of generic I/O failure.
*/
@Override
protected void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException
{
PrintWriter writer = response.getWriter();
Document soapEnvelopeRequest = null;
String soapEnvelopeResposeAsString = null;
try
{
soapEnvelopeRequest = XmlUtils.createDocument(request.getInputStream());
Document soapEnvelopeResponse = _isolationLayer.handleRequest(soapEnvelopeRequest);
soapEnvelopeResposeAsString = XmlUtils.toString(soapEnvelopeResponse,false,true);
response.setContentType("text/xml");
writer.write(soapEnvelopeResposeAsString);
} catch (SAXException exception)
{
LOGGER.error(
exception,
Messages.QMAN_100019_REQ_OR_RES_MALFORMED);
throw new ServletException(exception);
} finally {
writer.flush();
XmlDebugger.debug(soapEnvelopeRequest);
try {
XmlDebugger.debug(soapEnvelopeResposeAsString);
} catch(Exception exception) {
LOGGER.error(
exception,
Messages.QMAN_100019_REQ_OR_RES_MALFORMED);
}
}
}
}
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