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A JMS binding component
There is a newer version: 3.3.0
/**
 * Copyright (c) 2005-2012 EBM WebSourcing, 2012-2016 Linagora
 * 
 * This program/library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 2.1 of the License, or (at your
 * option) any later version.
 * 
 * This program/library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
 * for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program/library; If not, see http://www.gnu.org/licenses/
 * for the GNU Lesser General Public License version 2.1.
 */
package org.ow2.petals.bc.jms.su;

import static org.ow2.petals.bc.jms.Constants.Extensions.MAX_ACTIVE;
import static org.ow2.petals.bc.jms.Constants.Extensions.MAX_IDLE;
import static org.ow2.petals.bc.jms.Constants.Extensions.MAX_WAIT;
import static org.ow2.petals.bc.jms.Constants.Extensions.MIN_EVICTABLE_IDLE_TIME_MILLIS;
import static org.ow2.petals.bc.jms.Constants.Extensions.TEST_WHILE_IDLE;
import static org.ow2.petals.bc.jms.Constants.Extensions.TIME_BETWEEN_EVICTION_RUNS_MILLIS;

import org.apache.commons.pool.impl.GenericObjectPool;
import org.ow2.petals.bc.jms.JmsBC;
import org.ow2.petals.bc.jms.connection.JMSProviderConnection;
import org.ow2.petals.bc.jms.connection.JMSProviderConnectionFactory;
import org.ow2.petals.bc.jms.listener.JMSExternalListener;
import org.ow2.petals.component.framework.api.configuration.SuConfigurationParameters;
import org.ow2.petals.component.framework.api.exception.PEtALSCDKException;
import org.ow2.petals.component.framework.bc.BindingComponentServiceUnitManager;
import org.ow2.petals.component.framework.jbidescriptor.generated.Provides;
import org.ow2.petals.component.framework.listener.AbstractExternalListener;
import org.ow2.petals.component.framework.su.ServiceUnitDataHandler;

/**
 * @author Roland Naudin - EBM WebSourcing
 * @author Oliver Fabre - EBM WebSourcing
 */
public class JmsServiceUnitManager extends BindingComponentServiceUnitManager {

    private final JmsBC component;

    public JmsServiceUnitManager(JmsBC component) {
        super(component);
        this.component = component;
    }

    @Override
    protected AbstractExternalListener createExternalListener() {
        return new JMSExternalListener();
    }

    @Override
    public void doDeploy(final ServiceUnitDataHandler suDH) throws PEtALSCDKException {
        for (final Provides provides : suDH.getDescriptor().getServices().getProvides()) {
            try {
                this.registerConnectionPool(provides, suDH.getConfigurationExtensions(provides));
            } catch (final PEtALSCDKException e) {
                throw new PEtALSCDKException("Error creating a connection pool for SU: " + suDH.getName(), e);
            }
        }
    }

    @Override
    public void doUndeploy(final ServiceUnitDataHandler suDH) throws PEtALSCDKException {
        final PEtALSCDKException ex = new PEtALSCDKException("Error during undeploy");

        for (final Provides provides : suDH.getDescriptor().getServices().getProvides()) {
            try {
                this.unregisterConnectionPool(provides);
            } catch (final PEtALSCDKException e) {
                ex.addSuppressed(e);
            }
        }

        ex.throwIfNeeded();
    }

    /**
     * Register a pool of JMS connections.
     * 
     * @param provides
     * @param suConfigurationParameters
     * @throws PEtALSCDKException
     */
    private void registerConnectionPool(final Provides provides, final SuConfigurationParameters extensions)
            throws PEtALSCDKException {

        final int maxActive = Integer.parseInt(extensions.get(MAX_ACTIVE, "10"));
        final long maxWait = Long.parseLong(extensions.get(MAX_WAIT, "10000"));
        final int maxIdle = Integer.parseInt(extensions.get(MAX_IDLE, "5"));
        final long timeBetweenEvictionTimeMillis = Long.parseLong(extensions.get(TIME_BETWEEN_EVICTION_RUNS_MILLIS,
                "30000"));
        final long minEvictableIdleTimeMillis = Long
                .parseLong(extensions.get(MIN_EVICTABLE_IDLE_TIME_MILLIS, "600000"));
        final boolean testWhileIdle = Boolean.parseBoolean(extensions.get(TEST_WHILE_IDLE, "true"));

        this.component.getJmsProducerConnections().put(
                provides,
                new GenericObjectPool(new JMSProviderConnectionFactory(extensions,
                        this.component.getLogger()), maxActive, GenericObjectPool.WHEN_EXHAUSTED_BLOCK, maxWait,
                        maxIdle, false, false, timeBetweenEvictionTimeMillis, 5, minEvictableIdleTimeMillis,
                        testWhileIdle));
    }

    /**
     * unRegister a pool of connections.
     * 
     * @param provides
     * @throws PEtALSCDKException
     */
    private void unregisterConnectionPool(Provides provides) throws PEtALSCDKException {
        // close pool
        final GenericObjectPool pool = this.component.getJmsProducerConnections().get(provides);

        if (pool != null) {
            try {
                pool.close();
            } catch (final Exception e) {
                throw new PEtALSCDKException("Can't close pool associated to provides node: " + provides);
            }
        }
        
        // remove pool
        this.component.getJmsProducerConnections().remove(provides);
    }
}