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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
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* KIND, either express or implied. See the License for the
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package org.apache.synapse.startup.tasks;
import org.apache.axiom.om.OMElement;
import org.apache.synapse.ManagedLifecycle;
import org.apache.synapse.MessageContext;
import org.apache.synapse.SynapseConstants;
import org.apache.synapse.config.xml.ValueFactory;
import org.apache.synapse.core.SynapseEnvironment;
import org.apache.synapse.mediators.MediatorFaultHandler;
import org.apache.synapse.mediators.Value;
import org.apache.synapse.mediators.base.SequenceMediator;
import org.apache.synapse.mediators.template.InvokeMediator;
import org.apache.synapse.task.Task;
import java.util.Iterator;
public class TemplateMessageExecutor implements Task, ManagedLifecycle {
private SynapseEnvironment synapseEnvironment;
private SequenceMediator seqMed;
private String templateKey;
private OMElement templateParams;
private InvokeMediator invoker;
public void init(SynapseEnvironment se) {
//Initialize the template and populate the parameters
synapseEnvironment = se;
invoker = new InvokeMediator();
invoker.setTargetTemplate(templateKey);
buildParameters(templateParams);
// Remove if there's a sequence already exists
if (se.getSynapseConfiguration().getSequence(SynapseConstants.PREFIX_HIDDEN_SEQUENCE_KEY + templateKey.hashCode()) != null) {
se.getSynapseConfiguration().removeSequence(SynapseConstants.PREFIX_HIDDEN_SEQUENCE_KEY + templateKey.hashCode());
}
seqMed = new SequenceMediator();
seqMed.setName(SynapseConstants.PREFIX_HIDDEN_SEQUENCE_KEY + templateKey.hashCode());
seqMed.addChild(invoker);
se.getSynapseConfiguration().addSequence(seqMed.getName(), seqMed);
}
public void destroy() {
//To change body of implemented methods use File | Settings | File Templates.
}
public void execute() {
//Inject the message into SynapseEnvironment
MessageContext mc = synapseEnvironment.createMessageContext();
mc.pushFaultHandler(new MediatorFaultHandler(mc.getFaultSequence()));
synapseEnvironment.injectAsync(mc, seqMed);
}
public String getTemplateKey() {
return templateKey;
}
public void setTemplateKey(String templateKey) {
this.templateKey = templateKey;
}
public OMElement getTemplateParams() {
return templateParams;
}
public void setTemplateParams(OMElement templateParams) {
this.templateParams = templateParams;
}
private void buildParameters(OMElement elem) {
Iterator subElements = elem.getChildElements();
while (subElements.hasNext()) {
OMElement child = (OMElement) subElements.next();
Value paramValue = new ValueFactory().createTextValue(child);
invoker.addExpressionForParamName(child.getLocalName(), paramValue);
}
}
}