/*
* Copyright (c) 2005-2010, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* WSO2 Inc. 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.deployers;
import org.apache.axiom.om.OMElement;
import org.apache.axis2.deployment.DeploymentException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.synapse.config.xml.MessageProcessorFactory;
import org.apache.synapse.config.xml.MessageProcessorSerializer;
import org.apache.synapse.config.xml.MessageStoreSerializer;
import org.apache.synapse.config.xml.MultiXMLConfigurationBuilder;
import org.apache.synapse.message.processors.MessageProcessor;
import org.apache.synapse.message.store.MessageStore;
import java.io.File;
import java.util.Properties;
public class MessageProcessorDeployer extends AbstractSynapseArtifactDeployer {
private static Log log = LogFactory.getLog(MessageProcessorDeployer.class);
@Override
public String deploySynapseArtifact(OMElement artifactConfig, String fileName, Properties properties) {
if (log.isDebugEnabled()) {
log.debug("Message Processor Deployment from file : " + fileName + " : Started");
}
try{
MessageProcessor mp = MessageProcessorFactory.createMessageProcessor(artifactConfig);
if(mp != null) {
mp.setFileName((new File(fileName)).getName());
if (log.isDebugEnabled()) {
log.debug("Message Processor named '" + mp.getName()
+ "' has been built from the file " + fileName);
}
mp.init(getSynapseEnvironment());
if (log.isDebugEnabled()) {
log.debug("Initialized the Message Processor : " + mp.getName());
}
getSynapseConfiguration().addMessageProcessor(mp.getName(), mp);
if (log.isDebugEnabled()) {
log.debug("Message Processor Deployment from file : " + fileName +
" : Completed");
}
log.info("Message Processor named '" + mp.getName()
+ "' has been deployed from file : " + fileName);
return mp.getName();
} else {
handleSynapseArtifactDeploymentError("Message Processor Deployment from the file : "
+ fileName + " : Failed. The artifact " +
"described in the file is not a Message Processor");
}
} catch (Exception e) {
handleSynapseArtifactDeploymentError("Message Processor Deployment from the file : "
+ fileName + " : Failed.", e);
}
return null;
}
@Override
public String updateSynapseArtifact(OMElement artifactConfig, String fileName,
String existingArtifactName, Properties properties) {
if (log.isDebugEnabled()) {
log.debug("Message Processor update from file : " + fileName + " has started");
}
try {
MessageProcessor mp = MessageProcessorFactory.createMessageProcessor(artifactConfig);
if (mp == null) {
handleSynapseArtifactDeploymentError("Message Processor update failed. The artifact " +
"defined in the file: " + fileName + " is not valid");
return null;
}
mp.setFileName(new File(fileName).getName());
if (log.isDebugEnabled()) {
log.debug("MessageProcessor: " + mp.getName() + " has been built from the file: "
+ fileName);
}
MessageProcessor existingMp = getSynapseConfiguration().getMessageProcessors().
get(existingArtifactName);
existingMp.destroy();
// We should add the updated MessageProcessor as a new MessageProcessor
// and remove the old one
mp.init(getSynapseEnvironment());
getSynapseConfiguration().addMessageProcessor(mp.getName(), mp);
getSynapseConfiguration().removeMessageStore(existingArtifactName);
log.info("MessageProcessor: " + existingArtifactName + " has been undeployed");
log.info("MessageProcessor: " + mp.getName() + " has been updated from the file: " + fileName);
waitForCompletion();
return mp.getName();
} catch (DeploymentException e) {
handleSynapseArtifactDeploymentError("Error while updating the MessageProcessor from the " +
"file: " + fileName);
}
return null;
}
@Override
public void undeploySynapseArtifact(String artifactName) {
if (log.isDebugEnabled()) {
log.debug("MessageProcessor Undeployment of the MessageProcessor named : "
+ artifactName + " : Started");
}
try {
MessageProcessor mp =
getSynapseConfiguration().getMessageProcessors().get(artifactName);
if (mp != null) {
getSynapseConfiguration().removeMessageProcessor(artifactName);
if (log.isDebugEnabled()) {
log.debug("Destroying the MessageProcessor named : " + artifactName);
}
mp.destroy();
if (log.isDebugEnabled()) {
log.debug("MessageProcessor Undeployment of the endpoint named : "
+ artifactName + " : Completed");
}
log.info("MessageProcessor named '" + mp.getName() + "' has been undeployed");
} else if (log.isDebugEnabled()) {
log.debug("MessageProcessor " + artifactName + " has already been undeployed");
}
} catch (Exception e) {
handleSynapseArtifactDeploymentError(
"MessageProcessor Undeployement of MessageProcessor named : "
+ artifactName + " : Failed", e);
}
}
@Override
public void restoreSynapseArtifact(String artifactName) {
if (log.isDebugEnabled()) {
log.debug("Restoring the MessageProcessor with name : " + artifactName + " : Started");
}
try {
MessageProcessor mp
= getSynapseConfiguration().getMessageProcessors().get(artifactName);
OMElement msElem = MessageProcessorSerializer.serializeMessageProcessor(null,mp);
if (mp.getFileName() != null) {
String fileName = getServerConfigurationInformation().getSynapseXMLLocation()
+ File.separator + MultiXMLConfigurationBuilder.MESSAGE_PROCESSOR_DIR
+ File.separator + mp.getFileName();
writeToFile(msElem, fileName);
if (log.isDebugEnabled()) {
log.debug("Restoring the MessageProcessor with name : "
+ artifactName + " : Completed");
}
log.info("MessageProcessor named '" + artifactName + "' has been restored");
} else {
handleSynapseArtifactDeploymentError("Couldn't restore the MessageProcessor named '"
+ artifactName + "', filename cannot be found");
}
} catch (Exception e) {
handleSynapseArtifactDeploymentError(
"Restoring of the MessageProcessor named '" + artifactName + "' has failed", e);
}
}
}