qfactory.java

java pos,你可以直接编译运行,

/*
 * Copyright (c) 2005 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;


import java.io.File;
import java.io.FileInputStream;
import java.util.List;
import java.util.Iterator;
import java.util.Properties;
import java.util.ResourceBundle;
import java.util.MissingResourceException;
import java.net.MalformedURLException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Collection;
import javax.management.*;

import org.jdom.Element;
import org.jpos.core.Configurable;
import org.jpos.core.XmlConfigurable;
import org.jpos.core.Configuration;
import org.jpos.core.ConfigurationException;
import org.jpos.core.SimpleConfiguration;
import org.jpos.util.Logger;
import org.jpos.util.LogSource;

/**
 * @author <a href="mailto:[e-mail]">Alireza Taherkordi</a>
 * @author <a href="mailto:[e-mail]">Alejandro P. Revilla</a>
 * @version $Revision: 1.14 $ $Date: 2005/05/30 21:04:42 $
 */
public class QFactory {
    ObjectName loaderName;
    Q2 q2;
    ResourceBundle classMapping;

    public QFactory (ObjectName loaderName, Q2 q2) {
        super ();
        this.loaderName = loaderName;
        this.q2  = q2;
        classMapping = ResourceBundle.getBundle(this.getClass().getName());
    }

    public Object instantiate (Q2 server, Element e) 
        throws ReflectionException,
               MBeanException,
               InstanceNotFoundException
    {
        String clazz  = e.getAttributeValue ("class");
        if (clazz == null) {
            try {
                clazz = classMapping.getString (e.getName());
            } catch (MissingResourceException ex) {
                // no class attribute, no mapping
                // let MBeanServer do the yelling
            }
        }
        MBeanServer mserver = server.getMBeanServer();
        getExtraPath (server.getLoader (), e);
        return mserver.instantiate (clazz, loaderName);
    }

    public ObjectInstance createQBean (Q2 server, Element e, Object obj) 
        throws ClassNotFoundException, 
               InstantiationException,
               IllegalAccessException,
               MalformedObjectNameException,
               MalformedURLException,
               InstanceAlreadyExistsException,
               MBeanRegistrationException,
               InstanceNotFoundException,
               MBeanException,
               NotCompliantMBeanException,
               InvalidAttributeValueException,
               ReflectionException,
               ConfigurationException
    {
        String name   = e.getAttributeValue ("name");
        if (name == null)
            name = e.getName ();

        ObjectName objectName = new ObjectName (Q2.QBEAN_NAME + name);
        MBeanServer mserver = server.getMBeanServer();
        if(mserver.isRegistered(objectName)) {
            throw new InstanceAlreadyExistsException (name+" has already been deployed in another file.");
        }
        ObjectInstance instance = mserver.registerMBean (
            obj, objectName 
        );
        try {
            setAttribute (mserver, objectName, "Name", name);
            String logger = e.getAttributeValue ("logger");
            if (logger != null)
                setAttribute (mserver, objectName, "Logger", logger);
            setAttribute (mserver, objectName, "Server", server);
            setAttribute (mserver, objectName, "Persist", e);
            configureQBean(mserver,objectName,e);
            setConfiguration (obj, e);  // handle legacy (QSP v1) Configurables 

            if (obj instanceof QBean) 
                mserver.invoke (objectName, "init",  null, null);
        }
        catch (ConfigurationException ce) {
            mserver.unregisterMBean(objectName);
            throw ce;
        }

        return instance;
    }

    public void getExtraPath (QClassLoader loader, Element e) {
        Element classpathElement = e.getChild ("classpath");
        if (classpathElement != null) {
            Iterator iter = classpathElement.getChildren ("url").iterator();
            while (iter.hasNext ()) {
                Element u = (Element) iter.next ();
                try {
                    loader.addURL (u.getTextTrim ());
                } catch (MalformedURLException ex) {
                    q2.getLog().warn (u.getTextTrim(), ex);
                }
            }
        }
    }

    public void setAttribute 
        (MBeanServer server, ObjectName objectName, 
         String attribute, Object value)
        throws InstanceNotFoundException,
               MBeanException,
               InvalidAttributeValueException,
               ReflectionException
    {
        try {
            server.setAttribute (
                objectName, new Attribute (attribute, value)
            );
        } catch (AttributeNotFoundException ex) {
            // okay to fail
        }
    }

    public void startQBean (Q2 server, ObjectName objectName)
        throws ClassNotFoundException, 
               InstantiationException,
               IllegalAccessException,
               MalformedObjectNameException,
               MalformedURLException,
               InstanceAlreadyExistsException,
               MBeanRegistrationException,
               InstanceNotFoundException,
               MBeanException,
               NotCompliantMBeanException,
               InvalidAttributeValueException,
               ReflectionException
    {
        MBeanServer mserver = server.getMBeanServer();
        mserver.invoke (objectName, "start",  null, null);
    }

    public void destroyQBean (Q2 server, ObjectName objectName, Object obj)
        throws ClassNotFoundException, 
               InstantiationException,
               IllegalAccessException,
               MalformedObjectNameException,
               MalformedURLException,
               InstanceAlreadyExistsException,
               MBeanRegistrationException,
               InstanceNotFoundException,
               MBeanException,
               NotCompliantMBeanException,
               InvalidAttributeValueException,
               ReflectionException
    {
        MBeanServer mserver = server.getMBeanServer();
        if (obj instanceof QBean) {