# TraceMessageBuilderDispatchHandler.java

    /*
     * Copyright 2004,2005 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.synapse.transport.passthru.util;

    import org.apache.axis2.AxisFault;
    import org.apache.axis2.context.MessageContext;
    import org.apache.axis2.description.AxisOperation;
    import org.apache.axis2.description.AxisService;
    import org.apache.axis2.description.HandlerDescription;
    import org.apache.axis2.engine.AbstractDispatcher;
    import org.apache.commons.logging.Log;
    import org.apache.commons.logging.LogFactory;
    import org.apache.synapse.transport.util.MessageHandlerProvider;
    import org.apache.synapse.transport.netty.util.RequestResponseUtils;
    import org.apache.synapse.transport.passthru.PassThroughConstants;
    import org.apache.synapse.transport.passthru.Pipe;

    /**
     * This enables the persist full in come message for SOAP tracing facility provided
     */
    public class TraceMessageBuilderDispatchHandler extends AbstractDispatcher{

        private static final Log log = LogFactory.getLog(RelaySecuirtyMessageBuilderDispatchandler.class);
        public static final String NAME = "TraceMessageBuilderDispatchHandler";

        @Override
        public AxisOperation findOperation(AxisService axisService, MessageContext messageContext) throws AxisFault {
            return null;
        }

        @Override
        public AxisService findService(MessageContext messageContext) throws AxisFault {
            return null;
        }

        @Override
        public void initDispatcher() {
            init(new HandlerDescription(NAME));
        }

        @Override
        public InvocationResponse invoke(MessageContext messageContext) throws AxisFault {

            InvocationResponse invocationResponse = super.invoke(messageContext);
            Pipe pipe = (Pipe) messageContext.getProperty(PassThroughConstants.PASS_THROUGH_PIPE);
            if (pipe != null || RequestResponseUtils.isHttpCarbonMessagePresent(messageContext)) {
                if (!messageContext.isEngaged(PassThroughConstants.SECURITY_MODULE_NAME)) {
                    if (messageContext.isEngaged(PassThroughConstants.TRACE_SOAP_MESSAGE)) {
                        build(messageContext);
                    }
                }
            }
            return invocationResponse;
        }

        private void build(MessageContext messageContext) {
            try {
                MessageHandlerProvider.getMessageHandler(messageContext).buildMessage(messageContext, false);
            } catch (Exception e) {
                log.error("Error while executing the message at relaySecurity handler", e);
            }
        }
    }