modules/nhttp/src/org/apache/axis2/transport/nhttp/ClientWorker.java

/*
 * 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.axis2.transport.nhttp;

import org.apache.axis2.context.ConfigurationContext;
import org.apache.axis2.context.MessageContext;
import org.apache.axis2.description.WSDL2Constants;
import org.apache.axis2.AxisFault;
import org.apache.axis2.engine.AxisEngine;
import org.apache.axis2.transport.TransportUtils;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.io.InputStream;
import java.io.IOException;

/**
 * Performs processing of the HTTP response received for our outgoing request. An instance of this
 * class is created to process each unique response.
 */
public class ClientWorker implements Runnable {

    private static final Log log = LogFactory.getLog(ClientWorker.class);

    /** the Axis2 configuration context */
    private ConfigurationContext cfgCtx = null;
    /** the response message context that would be created */
    private MessageContext responseMsgCtx = null;
    /** the InputStream out of which the response body should be read */
    private InputStream in = null;
    /** the original request message context */
    private MessageContext outMsgCtx = null;

    /**
     * Create the thread that would process the response message received for the outgoing message
     * context sent
     * @param cfgCtx the Axis2 configuration context
     * @param in the InputStream to read the body of the response message received
     * @param outMsgCtx the original outgoing message context (i.e. corresponding request)
     */
    public ClientWorker(ConfigurationContext cfgCtx, InputStream in, MessageContext outMsgCtx) {

        this.cfgCtx = cfgCtx;
        this.in = in;
        this.outMsgCtx = outMsgCtx;

        try {
            responseMsgCtx = outMsgCtx.getOperationContext().
                getMessageContext(WSDL2Constants.MESSAGE_LABEL_IN);
        } catch (AxisFault af) {
            log.error("Error getting IN message context from the operation context", af);
            return;
        }

        if (responseMsgCtx == null) {
            log.error("Error getting IN message context from the operation context");
        } else {
            responseMsgCtx.setServerSide(true);
            responseMsgCtx.setDoingREST(outMsgCtx.isDoingREST());
            responseMsgCtx.setProperty(MessageContext.TRANSPORT_IN, outMsgCtx
                .getProperty(MessageContext.TRANSPORT_IN));
            responseMsgCtx.setTransportIn(outMsgCtx.getTransportIn());
            responseMsgCtx.setTransportOut(outMsgCtx.getTransportOut());

            responseMsgCtx.setOperationContext(outMsgCtx.getOperationContext());
            responseMsgCtx.setConfigurationContext(outMsgCtx.getConfigurationContext());
            //responseMsgCtx.getOptions().setRelationships(
            //    new RelatesTo[] { new RelatesTo(outMsgCtx.getMessageID()) });
            responseMsgCtx.setTo(null);
        }
    }

    /**
     * Process the received response through Axis2
     */
    public void run() {
        SOAPEnvelope envelope = null;
        try {
            envelope = TransportUtils.createSOAPMessage(
                responseMsgCtx,
                in,
                outMsgCtx.getEnvelope().getNamespace().getNamespaceURI());
            responseMsgCtx.setEnvelope(envelope);

        } catch (AxisFault af) {
            log.error("Fault creating response SOAP envelope", af);
            return;
        } catch (IOException e) {
            log.error("Error closing input stream from which message was read", e);
        }

        AxisEngine engine = new AxisEngine(cfgCtx);
        try {
            if (envelope.getBody().hasFault()) {
                engine.receiveFault(responseMsgCtx);
            } else {
                engine.receive(responseMsgCtx);
            }
        } catch (AxisFault af) {
            log.error("Fault processing response message through Axis2", af);
        }
    }

    // -------------- utility methods -------------
    private void handleException(String msg, Exception e) throws AxisFault {
        log.error(msg, e);
        throw new AxisFault(msg, e);
    }
}