/*
* Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.jca;
import com.hazelcast.config.ConfigBuilder;
import com.hazelcast.config.XmlConfigBuilder;
import com.hazelcast.core.Hazelcast;
import com.hazelcast.core.HazelcastInstance;
import javax.resource.ResourceException;
import javax.resource.spi.ActivationSpec;
import javax.resource.spi.BootstrapContext;
import javax.resource.spi.ResourceAdapter;
import javax.resource.spi.ResourceAdapterInternalException;
import javax.resource.spi.endpoint.MessageEndpointFactory;
import javax.transaction.xa.XAResource;
import java.io.FileNotFoundException;
import java.io.Serializable;
import java.util.concurrent.atomic.AtomicInteger;
/**
* This is the starting point of the whole resource adapter for hazelcast.
* The hazelcast instance is created/fetched in this class
*/
public class ResourceAdapterImpl implements ResourceAdapter, Serializable {
/**
* Identity generator
*/
private static final AtomicInteger ID_GEN = new AtomicInteger();
private static final long serialVersionUID = -1727994229521767306L;
/**
* The hazelcast instance itself
*/
private transient HazelcastInstance hazelcast;
/**
* The configured hazelcast configuration location
*/
private String configurationLocation;
/**
* Identity
*/
private transient int id;
public ResourceAdapterImpl() {
setId(ID_GEN.incrementAndGet());
}
/* (non-Javadoc)
* @see javax.resource.spi.ResourceAdapter
* #endpointActivation(javax.resource.spi.endpoint.MessageEndpointFactory, javax.resource.spi.ActivationSpec)
*/
public void endpointActivation(MessageEndpointFactory endpointFactory, ActivationSpec spec)
throws ResourceException {
}
/* (non-Javadoc)
* @see javax.resource.spi.ResourceAdapter
* #endpointDeactivation(javax.resource.spi.endpoint.MessageEndpointFactory, javax.resource.spi.ActivationSpec)
*/
public void endpointDeactivation(MessageEndpointFactory endpointFactory, ActivationSpec spec) {
}
/* (non-Javadoc)
* @see javax.resource.spi.ResourceAdapter
* #getXAResources(javax.resource.spi.ActivationSpec[])
*/
public XAResource[] getXAResources(ActivationSpec[] specs) throws ResourceException {
//JBoss is fine with null, weblogic requires an empty array
return new XAResource[0];
}
/* (non-Javadoc)
* @see javax.resource.spi.ResourceAdapter#start(javax.resource.spi.BootstrapContext)
*/
public void start(BootstrapContext ctx) throws ResourceAdapterInternalException {
// Gets/creates the hazelcast instance
ConfigBuilder config = buildConfiguration();
setHazelcast(Hazelcast.newHazelcastInstance(config.build()));
}
/**
* Creates a hazelcast configuration based on the {@link #getConfigurationLocation()}
*
* @return the created hazelcast configuration
* @throws ResourceAdapterInternalException If there was a problem with the configuration creation
*/
private ConfigBuilder buildConfiguration()
throws ResourceAdapterInternalException {
XmlConfigBuilder config;
if (configurationLocation == null || configurationLocation.length() == 0) {
config = new XmlConfigBuilder();
} else {
try {
config = new XmlConfigBuilder(configurationLocation);
} catch (FileNotFoundException e) {
throw new ResourceAdapterInternalException(e.getMessage(), e);
}
}
return config;
}
/* (non-Javadoc)
* @see javax.resource.spi.ResourceAdapter#stop()
*/
public void stop() {
if (getHazelcast() != null) {
getHazelcast().getLifecycleService().shutdown();
}
}
/**
* Sets the underlying hazelcast instance
*/
private void setHazelcast(HazelcastInstance hazelcast) {
this.hazelcast = hazelcast;
}
/**
* Provides access to the underlying hazelcast instance
*/
HazelcastInstance getHazelcast() {
return hazelcast;
}
/**
* Called by the container
*
* @param configurationLocation Hazelcast's configuration location
*/
public void setConfigurationLocation(String configurationLocation) {
this.configurationLocation = configurationLocation;
}
/**
* @return The configured hazelcast configuration location via RAR deployment descriptor
*/
public String getConfigurationLocation() {
return configurationLocation;
}
@Deprecated
public void setConfigLocation(String configLocation) {
this.configurationLocation = configLocation;
}
@Deprecated
public String getConfigLocation() {
return configurationLocation;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + id;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
ResourceAdapterImpl other = (ResourceAdapterImpl) obj;
if (id != other.id) {
return false;
}
return true;
}
public void setId(int id) {
this.id = id;
}
}