org.soulwing.oaq.OAQManagedConnection.java Source code

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Here is the source code for org.soulwing.oaq.OAQManagedConnection.java

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/*
 * File created on Nov 26, 2013 
 *
 * Copyright (c) 2013 Carl Harris, Jr.
 *
 * 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.soulwing.oaq;

import java.io.PrintWriter;

import javax.jms.XAConnection;
import javax.resource.ResourceException;
import javax.resource.spi.ConnectionEventListener;
import javax.resource.spi.ConnectionRequestInfo;
import javax.resource.spi.LocalTransaction;
import javax.resource.spi.ManagedConnection;
import javax.resource.spi.ManagedConnectionMetaData;
import javax.security.auth.Subject;
import javax.transaction.xa.XAResource;

import org.apache.commons.lang.Validate;

/**
 * A {@link MessageManagedConnection} to Oracle AQ.
 *
 * @author Carl Harris
 */
public class OAQManagedConnection implements ManagedConnection, MessageManagedConnection {

    private final ConnectionEventListenerSupport listenerSupport = new ConnectionEventListenerSupport(this);

    private final MessageConnectionManager connectionManager = new MessageConnectionManager();

    private Subject subject;
    private ConnectionRequestInfo info;
    private XAConnection delegate;
    private PrintWriter logWriter;

    /**
     * Constructs a new instance.
     * @param subject
     * @param info
     * @param delegate
     */
    public OAQManagedConnection(Subject subject, ConnectionRequestInfo info, XAConnection physicalConnection) {
        this.subject = subject;
        this.info = info;
        this.delegate = physicalConnection;
    }

    public XAConnection getDelegate() {
        return delegate;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void cleanup() throws ResourceException {
        // TODO Auto-generated method stub

    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void destroy() throws ResourceException {
        // TODO Auto-generated method stub

    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Object getConnection(Subject subject, ConnectionRequestInfo info) throws ResourceException {
        return connectionManager.create(this);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void associateConnection(Object connection) throws ResourceException {
        if (!(connection instanceof ManagedConnectionProxy)) {
            throw new ResourceException("cannot associate connection of type " + connection.getClass().getName());
        }
        connectionManager.add((ManagedConnectionProxy) connection);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void closeConnection(Object connection) {
        Validate.isTrue(connection instanceof ManagedConnectionProxy);
        connectionManager.remove((ManagedConnectionProxy) connection);
        listenerSupport.fireConnectionClosed(connection);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public LocalTransaction getLocalTransaction() throws ResourceException {
        throw new UnsupportedOperationException();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public PrintWriter getLogWriter() throws ResourceException {
        return logWriter;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void setLogWriter(PrintWriter logWriter) throws ResourceException {
        this.logWriter = logWriter;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public ManagedConnectionMetaData getMetaData() throws ResourceException {
        // TODO Auto-generated method stub
        return null;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public XAResource getXAResource() throws ResourceException {
        // TODO Auto-generated method stub
        return null;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void addConnectionEventListener(ConnectionEventListener listener) {
        listenerSupport.addConnectionEventListener(listener);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void removeConnectionEventListener(ConnectionEventListener listener) {
        listenerSupport.removeConnectionEventListener(listener);
    }

    /**
     * Determines whether the receiver matches the given subject and 
     * delegate info
     * @param subject subject to match
     * @param info info to match
     * @return {@code true} if subject and info both match the receiver
     */
    public boolean matches(Subject subject, ConnectionRequestInfo info) {
        if (this.subject == null ^ subject == null)
            return false;
        if (this.subject == null || !this.subject.equals(subject))
            return false;
        if (this.info == null ^ info == null)
            return false;
        if (this.info == null || !this.info.equals(subject))
            return false;
        return true;
    }

}