testconnectionpool.java

OpenJMS是一个开源的Java Message Service API 1.0.2 规范的实现,它包含有以下特性： *. 它既支持点到点（point-to-point）（PTP）模型和发布/订

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 * $Id: TestConnectionPool.java,v 1.2 2005/06/04 14:56:40 tanderson Exp $
 */

package org.exolab.jms.net.connector;


/**
 * An {@link ConnectionPool} used for test purposes.
 *
 * @author <a href="mailto:[e-mail]">Tim Anderson</a>
 * @version $Revision: 1.2 $ $Date: 2005/06/04 14:56:40 $
 */
public class TestConnectionPool extends DefaultConnectionPool {

    /**
     * The no. of connections
     */
    private int _count = 0;


    /**
     * Construct a new <code>TestConnectionPool</code>.
     *
     * @param factory  the managed connection factory
     * @param handler  the invocation handler, assigned to each new managed
     *                 connection
     * @param resolver the connection factory for resolving connections via
     *                 their URI
     * @throws ResourceException if any configuration property is invalid
     */
    public TestConnectionPool(ManagedConnectionFactory factory,
                              InvocationHandler handler,
                              ConnectionFactory resolver)
            throws ResourceException {
        super(factory, handler, resolver, null);
    }

    /**
     * Returns the no. of the physical connections in the pool
     *
     * @return the  no. of the physical connections in the pool
     */
    public int getPooledConnections() {
        return _count;
    }

    /**
     * Adds a connection to the pool. If the connection was created, a {@link
     * ManagedConnectionHandle} will be returned, wrapping the supplied
     * connection.
     *
     * @param connection the connection to add
     * @param accepted   if <code>true</code> the connection was accepted via an
     *                   {@link ManagedConnectionAcceptor}, otherwise it was
     *                   created via {@link ManagedConnectionFactory#createManagedConnection}
     * @return the (possibly wrapped) connection
     * @throws ResourceException if the connection cannot be added
     */
    protected ManagedConnection add(ManagedConnection connection,
                                    boolean accepted) throws ResourceException {
        ManagedConnection result = super.add(connection, accepted);
        ++_count;
        return result;
    }

    /**
     * Remove a connection from the pool.
     *
     * @param connection the connection to remove
     */
    protected void remove(ManagedConnection connection) {
        super.remove(connection);
        --_count;
    }

}