/*
* 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.deployers;
import org.apache.axiom.om.OMElement;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.synapse.config.xml.MultiXMLConfigurationBuilder;
import org.apache.synapse.config.xml.eventing.EventSourceFactory;
import org.apache.synapse.config.xml.eventing.EventSourceSerializer;
import org.apache.synapse.eventing.SynapseEventSource;
import org.apache.axis2.deployment.DeploymentException;
import org.apache.axis2.AxisFault;
import java.io.File;
import java.util.Properties;
/**
* Handles the <code>EventSource</code> deployment and undeployment tasks
*
* @see org.apache.synapse.deployers.AbstractSynapseArtifactDeployer
*/
public class EventSourceDeployer extends AbstractSynapseArtifactDeployer {
private static Log log = LogFactory.getLog(EventSourceDeployer.class);
@Override
public String deploySynapseArtifact(OMElement artifactConfig, String fileName,
Properties properties) {
if (log.isDebugEnabled()) {
log.debug("EventSource Deployment from file : " + fileName + " : Started");
}
try {
SynapseEventSource es = EventSourceFactory.createEventSource(
artifactConfig, properties);
if (es != null) {
es.setFileName((new File(fileName)).getName());
if (log.isDebugEnabled()) {
log.debug("EventSource named '" + es.getName()
+ "' has been built from the file " + fileName);
}
es.buildService(getSynapseConfiguration().getAxisConfiguration());
if (log.isDebugEnabled()) {
log.debug("Initialized the EventSource : " + es.getName());
}
getSynapseConfiguration().addEventSource(es.getName(), es);
if (log.isDebugEnabled()) {
log.debug("EventSource Deployment from file : " + fileName + " : Completed");
}
log.info("EventSource named '" + es.getName()
+ "' has been deployed from file : " + fileName);
return es.getName();
} else {
handleSynapseArtifactDeploymentError("EventSource Deployment Failed. The " +
"artifact described in the file " + fileName + " is not an EventSource");
}
} catch (Exception e) {
handleSynapseArtifactDeploymentError(
"EventSource 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("EventSource Update from file : " + fileName + " : Started");
}
try {
SynapseEventSource es = EventSourceFactory.createEventSource(
artifactConfig, properties);
if (es != null) {
es.setFileName((new File(fileName)).getName());
if (log.isDebugEnabled()) {
log.debug("EventSource named '" + es.getName()
+ "' has been built from the file " + fileName);
}
getSynapseConfiguration().removeEventSource(existingArtifactName);
if (!existingArtifactName.equals(es.getName())) {
log.info("EventSource named " + existingArtifactName + " has been Undeployed");
}
es.buildService(getSynapseConfiguration().getAxisConfiguration());
if (log.isDebugEnabled()) {
log.debug("Initialized the EventSource : " + es.getName());
}
getSynapseConfiguration().addEventSource(es.getName(), es);
if (log.isDebugEnabled()) {
log.debug("EventSource " + (existingArtifactName.equals(es.getName()) ?
"update" : "deployment") + " from file : " + fileName + " : Completed");
}
log.info("EventSource named '" + es.getName()
+ "' has been " + (existingArtifactName.equals(es.getName()) ?
"update" : "deployed") + " from file : " + fileName);
return es.getName();
} else {
handleSynapseArtifactDeploymentError("EventSource Update Failed. The artifact " +
"described in the file " + fileName + " is not a EventSource");
}
} catch (DeploymentException e) {
handleSynapseArtifactDeploymentError(
"EventSource Update from the file : " + fileName + " : Failed.", e);
} catch (AxisFault e) {
handleSynapseArtifactDeploymentError("Error while initializing the event source", e);
}
return null;
}
@Override
public void undeploySynapseArtifact(String artifactName) {
if (log.isDebugEnabled()) {
log.debug("EventSource Undeployment of the event source named : "
+ artifactName + " : Started");
}
try {
SynapseEventSource es = getSynapseConfiguration().getEventSource(artifactName);
if (es != null) {
getSynapseConfiguration().removeEventSource(artifactName);
if (log.isDebugEnabled()) {
log.debug("EventSource Undyou neeeployment of the EventSource named : "
+ artifactName + " : Completed");
}
log.info("EventSource named '" + es.getName() + "' has been undeployed");
} else if (log.isDebugEnabled()) {
log.debug("Event source " + artifactName + " has already been undeployed");
}
} catch (Exception e) {
handleSynapseArtifactDeploymentError("EventSource Undeployement of EventSource named : "
+ artifactName + " : Failed", e);
}
}
@Override
public void restoreSynapseArtifact(String artifactName) {
if (log.isDebugEnabled()) {
log.debug("Restoring the EventSource with name : " + artifactName + " : Started");
}
try {
SynapseEventSource es
= getSynapseConfiguration().getEventSource(artifactName);
OMElement esElem = EventSourceSerializer.serializeEventSource(null, es);
if (es.getFileName() != null) {
String fileName = getServerConfigurationInformation().getSynapseXMLLocation()
+ File.separator + MultiXMLConfigurationBuilder.EVENTS_DIR
+ File.separator + es.getFileName();
writeToFile(esElem, fileName);
if (log.isDebugEnabled()) {
log.debug("Restoring the EventSource with name : " + artifactName + " : Completed");
}
log.info("EventSource named '" + artifactName + "' has been restored");
} else {
handleSynapseArtifactDeploymentError("Couldn't restore the EventSource named '"
+ artifactName + "', filename cannot be found");
}
} catch (Exception e) {
handleSynapseArtifactDeploymentError(
"Restoring of the EventSource named '" + artifactName + "' has failed", e);
}
}
}