spaceadaptor.java

java pos,你可以直接编译运行,

/*
 * Copyright (c) 2000 jPOS.org.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *    "This product includes software developed by the jPOS project 
 *    (http://www.jpos.org/)". Alternately, this acknowledgment may 
 *    appear in the software itself, if and wherever such third-party 
 *    acknowledgments normally appear.
 *
 * 4. The names "jPOS" and "jPOS.org" must not be used to endorse 
 *    or promote products derived from this software without prior 
 *    written permission. For written permission, please contact 
 *    [e-mail].
 *
 * 5. Products derived from this software may not be called "jPOS",
 *    nor may "jPOS" appear in their name, without prior written
 *    permission of the jPOS project.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  
 * IN NO EVENT SHALL THE JPOS PROJECT OR ITS CONTRIBUTORS BE LIABLE FOR 
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the jPOS Project.  For more
 * information please see <http://www.jpos.org/>.
 */
package org.jpos.q2.qbean;

import java.util.Set;
import java.rmi.RemoteException;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.management.ObjectName;
import org.jpos.q2.Q2;
import org.jpos.q2.QBeanSupport;
import org.jpos.space.Space;
import org.jpos.space.SpaceFactory;
import org.jpos.space.LocalSpace;

/**
 * Space Adaptor
 *
 * @author Alejandro Revilla
 * @version $Revision: 1.3 $ $Date: 2004/12/17 20:12:57 $
 * @jmx:mbean description="Space QBean"
 *                  extends="org.jpos.q2.QBeanSupportMBean"
 */

public class SpaceAdaptor 
    extends QBeanSupport
    implements SpaceAdaptorMBean
{
    private Space sp = null;
    private String spaceName = null;
    private ObjectName objectName = null;

    public SpaceAdaptor () {
        super ();
    }

    protected void startService () throws Exception {
        if (spaceName == null) 
            sp = SpaceFactory.getSpace ();
        else 
            sp = SpaceFactory.getSpace (spaceName);

        objectName = new ObjectName (Q2.QBEAN_NAME + 
            getName() + ",space=" +
            (spaceName != null ? spaceName : "default")
        );
        getServer().getMBeanServer().registerMBean (sp, objectName);
    }

    protected void stopService () throws Exception {
        getServer().getMBeanServer().unregisterMBean (objectName);
    }

    /**
     * @jmx:managed-attribute description="Space Name"
     */
    public synchronized void setSpaceName (String spaceName) {
        this.spaceName = spaceName;
        setAttr (getAttrs (), "spaceName", spaceName);
        setModified (true);
    }

    /**
     * @jmx:managed-attribute description="Space Name"
     */
    public String getSpaceName () {
        return spaceName;
    }
    
    /**
     * @jmx:managed-attribute description="Space Keys"
     */
    public Set getKeys () {
        if (sp instanceof LocalSpace) 
            return ((LocalSpace)sp).getKeySet ();
        return null;
    }
}