/*
* ModeShape (http://www.modeshape.org)
*
* 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.modeshape.jca;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import javax.resource.ResourceException;
import javax.resource.spi.ActivationSpec;
import javax.resource.spi.BootstrapContext;
import javax.resource.spi.Connector;
import javax.resource.spi.ResourceAdapter;
import javax.resource.spi.ResourceAdapterInternalException;
import javax.resource.spi.TransactionSupport;
import javax.resource.spi.endpoint.MessageEndpointFactory;
import javax.transaction.xa.XAResource;
import org.modeshape.common.logging.Logger;
import org.modeshape.jcr.ModeShapeEngine;
/**
* JcrResourceAdapter
*
* @author kulikov
*/
@Connector( reauthenticationSupport = false, transactionSupport = TransactionSupport.TransactionSupportLevel.XATransaction )
public class JcrResourceAdapter implements ResourceAdapter, java.io.Serializable {
/**
* The serial version UID
*/
private static final long serialVersionUID = 1L;
private static final Logger LOGGER = Logger.getLogger(JcrResourceAdapter.class);
//XA
private final XAResource[] xaResources = new XAResource[0];
private ModeShapeEngine engine;
/**
* Default constructor
*/
public JcrResourceAdapter() {
}
/**
* This is called during the activation of a message endpoint.
*
* @param endpointFactory A message endpoint factory instance.
* @param spec An activation spec JavaBean instance.
* @throws ResourceException generic exception
*/
@Override
public void endpointActivation( MessageEndpointFactory endpointFactory,
ActivationSpec spec ) throws ResourceException {
}
/**
* This is called when a message endpoint is deactivated.
*
* @param endpointFactory A message endpoint factory instance.
* @param spec An activation spec JavaBean instance.
*/
@Override
public void endpointDeactivation( MessageEndpointFactory endpointFactory,
ActivationSpec spec ) {
}
/**
* This is called when a resource adapter instance is bootstrapped.
*
* @param ctx A bootstrap context containing references
* @throws ResourceAdapterInternalException indicates bootstrap failure.
*/
@Override
public synchronized void start( BootstrapContext ctx ) throws ResourceAdapterInternalException {
if (engine == null) {
engine = new ModeShapeEngine();
engine.start();
}
}
/**
* This is called when a resource adapter instance is undeployed or during application server shutdown.
*/
@Override
public synchronized void stop() {
if (engine != null) {
Future<Boolean> shutdown = engine.shutdown();
final int SHUTDOWN_TIMEOUT = 30;
try {
LOGGER.debug("Shutting down engine to stop resource adapter");
if ( ! shutdown.get(SHUTDOWN_TIMEOUT, TimeUnit.SECONDS)) {
// ModeShapeEngine somehow remained running, nothing to be done about it.
LOGGER.error(JcaI18n.unableToStopEngine);
}
} catch (TimeoutException e) {
// Exception can be expected, but stack trace is logged to find where limit was defined
LOGGER.error(e, JcaI18n.unableToStopEngineWithinTimeLimit, SHUTDOWN_TIMEOUT);
} catch (InterruptedException e) {
LOGGER.error(e, JcaI18n.interruptedWhileStoppingJcaAdapter,e.getMessage());
} catch (ExecutionException e) {
LOGGER.error(e, JcaI18n.errorWhileStoppingJcaAdapter,e.getMessage());
}
engine = null;
}
}
/**
* This method is called by the application server during crash recovery.
*
* @param specs An array of ActivationSpec JavaBeans
* @throws ResourceException generic exception
* @return An array of XAResource objects
*/
@Override
public XAResource[] getXAResources( ActivationSpec[] specs ) throws ResourceException {
return xaResources;
}
/**
* Indicates whether some other object is equal to this one.
*
* @param other The reference object with which to compare.
* @return true if this object is the same as the obj argument, false otherwise.
*/
@Override
public boolean equals( Object other ) {
if (other == this) {
return true;
}
if (other instanceof JcrManagedConnectionFactory) {
return this == other;
}
return false;
}
/**
* Calculates the hashcode for this object.
*/
@Override
public int hashCode() {
return super.hashCode();
}
public synchronized ModeShapeEngine getEngine() {
if (engine == null) {
ModeShapeEngine engine = new ModeShapeEngine();
engine.start();
this.engine = engine;
}
return engine;
}
}