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ActiveMQ example source code file (SimpleConnectionManager.java)

This example ActiveMQ source code file (SimpleConnectionManager.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - ActiveMQ tags/keywords

connectioneventlistener, connectionmanager, connectionmanager, connectionrequestinfo, error, error, logger, managedconnection, object, object, resourceexception, resourceexception, simpleconnectionmanager, subject

The ActiveMQ SimpleConnectionManager.java source code

/**
 * 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.activemq.ra;

import javax.resource.ResourceException;
import javax.resource.spi.ConnectionEvent;
import javax.resource.spi.ConnectionEventListener;
import javax.resource.spi.ConnectionManager;
import javax.resource.spi.ConnectionRequestInfo;
import javax.resource.spi.ManagedConnection;
import javax.resource.spi.ManagedConnectionFactory;
import javax.security.auth.Subject;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A simple implementation of a ConnectionManager. An Application Server will
 * have a better implementation with pooling and security etc.
 * 
 * 
 */
public class SimpleConnectionManager implements ConnectionManager, ConnectionEventListener {

    private static final long serialVersionUID = -7662970495944876239L;

    private static final Logger LOG = LoggerFactory.getLogger(SimpleConnectionManager.class);

    /**
     * @see javax.resource.spi.ConnectionManager#allocateConnection(javax.resource.spi.ManagedConnectionFactory,
     *      javax.resource.spi.ConnectionRequestInfo)
     */
    public Object allocateConnection(ManagedConnectionFactory connectionFactory, ConnectionRequestInfo info) throws ResourceException {
        Subject subject = null;
        ManagedConnection connection = connectionFactory.createManagedConnection(subject, info);
        connection.addConnectionEventListener(this);
        return connection.getConnection(subject, info);
    }

    /**
     * @see javax.resource.spi.ConnectionEventListener#connectionClosed(javax.resource.spi.ConnectionEvent)
     */
    public void connectionClosed(ConnectionEvent event) {
        try {
            ((ManagedConnection)event.getSource()).cleanup();
        } catch (ResourceException e) {
            LOG.warn("Error occured during the cleanup of a managed connection: ", e);
        }
        try {
            ((ManagedConnection)event.getSource()).destroy();
        } catch (ResourceException e) {
            LOG.warn("Error occured during the destruction of a managed connection: ", e);
        }
    }

    /**
     * @see javax.resource.spi.ConnectionEventListener#localTransactionStarted(javax.resource.spi.ConnectionEvent)
     */
    public void localTransactionStarted(ConnectionEvent event) {
    }

    /**
     * @see javax.resource.spi.ConnectionEventListener#localTransactionCommitted(javax.resource.spi.ConnectionEvent)
     */
    public void localTransactionCommitted(ConnectionEvent event) {
    }

    /**
     * @see javax.resource.spi.ConnectionEventListener#localTransactionRolledback(javax.resource.spi.ConnectionEvent)
     */
    public void localTransactionRolledback(ConnectionEvent event) {
    }

    /**
     * @see javax.resource.spi.ConnectionEventListener#connectionErrorOccurred(javax.resource.spi.ConnectionEvent)
     */
    public void connectionErrorOccurred(ConnectionEvent event) {
        LOG.warn("Managed connection experiened an error: ", event.getException());
        try {
            ((ManagedConnection)event.getSource()).cleanup();
        } catch (ResourceException e) {
            LOG.warn("Error occured during the cleanup of a managed connection: ", e);
        }
        try {
            ((ManagedConnection)event.getSource()).destroy();
        } catch (ResourceException e) {
            LOG.warn("Error occured during the destruction of a managed connection: ", e);
        }
    }

}

Other ActiveMQ examples (source code examples)

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