/*
* 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.synapse.mediators.base;
import org.apache.synapse.SynapseConstants;
import org.apache.synapse.MessageContext;
import org.apache.synapse.statistics.StatisticsStack;
import org.apache.synapse.statistics.StatisticsUtils;
import org.apache.synapse.statistics.impl.SequenceStatisticsStack;
import org.apache.synapse.mediators.AbstractListMediator;
/**
* The SynapseMediator is the "mainmediator" of the synapse engine. It is
* given each message on arrival at the Synapse engine. The Synapse configuration
* holds a reference to this special mediator instance. The SynapseMediator
* holds the list of mediators supplied within the <rules> element of an XML
* based Synapse configuration
*
* @see org.apache.synapse.config.SynapseConfiguration#getMainSequence()
*/
public class SynapseMediator extends AbstractListMediator {
/**
* Perform the mediation specified by the rule set
*
* @param synCtx the message context
* @return as per standard mediate() semantics
*/
public boolean mediate(MessageContext synCtx) {
boolean traceOn = isTraceOn(synCtx);
boolean traceOrDebugOn = isTraceOrDebugOn(traceOn);
if (traceOrDebugOn) {
traceOrDebug(traceOn, "Start : Mediation using '" + SynapseConstants.MAIN_SEQUENCE_KEY +
"' sequence Message is a : " + (synCtx.isResponse() ? "response" : "request"));
if (traceOn && trace.isTraceEnabled()) {
trace.trace("Message : " + synCtx.getEnvelope());
}
}
// If the message flow path is OUT, then process the satatistics
if (synCtx.isResponse()) {
StatisticsUtils.processAllSequenceStatistics(synCtx);
}
//put the required property for the collecttng statistics for the message mediation
StatisticsStack sequenceStack = (StatisticsStack) synCtx.getProperty(
SynapseConstants.SEQUENCE_STATS);
if (sequenceStack == null) {
sequenceStack = new SequenceStatisticsStack();
synCtx.setProperty(SynapseConstants.SEQUENCE_STATS,sequenceStack);
}
String seqName = "MainSequence";
boolean isFault = synCtx.getEnvelope().getBody().hasFault();
sequenceStack.put(seqName,System.currentTimeMillis(),!synCtx.isResponse(),true,isFault);
boolean result = super.mediate(synCtx);
if (traceOrDebugOn) {
if (traceOn && trace.isTraceEnabled()) {
trace.trace("Message : " + synCtx.getEnvelope());
}
traceOrDebug(traceOn, "End : Mediation using '" +
SynapseConstants.MAIN_SEQUENCE_KEY + "' sequence");
}
return result;
}
}