standardservice.java

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/*
 * ====================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999-2002 The Apache Software Foundation.  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 acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
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 * 5. Products derived from this software may not be called "Apache"
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 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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 * 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 Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 * [Additional notices, if required by prior licensing conditions]
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 */


package org.apache.catalina.core;


import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import javax.management.MBeanRegistration;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import org.apache.catalina.Connector;
import org.apache.catalina.Container;
import org.apache.catalina.Engine;
import org.apache.catalina.Lifecycle;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.LifecycleListener;
import org.apache.catalina.Server;
import org.apache.catalina.Service;
import org.apache.catalina.ServerFactory;
import org.apache.catalina.util.LifecycleSupport;
import org.apache.catalina.util.StringManager;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.modeler.Registry;


/**
 * Standard implementation of the <code>Service</code> interface.  The
 * associated Container is generally an instance of Engine, but this is
 * not required.
 *
 * @author Craig R. McClanahan
 */

public class StandardService
        implements Lifecycle, Service, MBeanRegistration 
 {
    private static Log log = LogFactory.getLog(StandardService.class);
   

    // ----------------------------------------------------- Instance Variables


    /**
     * The set of Connectors associated with this Service.
     */
    private Connector connectors[] = new Connector[0];


    /**
     * The Container associated with this Service.
     */
    private Container container = null;


    /**
     * The debugging detail level for this component.
     */
    private int debug = 0;


    /**
     * Descriptive information about this component implementation.
     */
    private static final String info =
        "org.apache.catalina.core.StandardService/1.0";


    /**
     * Has this component been initialized?
     */
    private boolean initialized = false;


    /**
     * The name of this service.
     */
    private String name = null;


    /**
     * The lifecycle event support for this component.
     */
    private LifecycleSupport lifecycle = new LifecycleSupport(this);


    /**
     * The string manager for this package.
     */
    private static final StringManager sm =
        StringManager.getManager(Constants.Package);

    /**
     * The <code>Server</code> that owns this Service, if any.
     */
    private Server server = null;

    /**
     * Has this component been started?
     */
    private boolean started = false;


    /**
     * The property change support for this component.
     */
    protected PropertyChangeSupport support = new PropertyChangeSupport(this);


    // ------------------------------------------------------------- Properties


    /**
     * Return the <code>Container</code> that handles requests for all
     * <code>Connectors</code> associated with this Service.
     */
    public Container getContainer() {

        return (this.container);

    }


    /**
     * Set the <code>Container</code> that handles requests for all
     * <code>Connectors</code> associated with this Service.
     *
     * @param container The new Container
     */
    public void setContainer(Container container) {

        Container oldContainer = this.container;
        if ((oldContainer != null) && (oldContainer instanceof Engine))
            ((Engine) oldContainer).setService(null);
        this.container = container;
        if ((this.container != null) && (this.container instanceof Engine))
            ((Engine) this.container).setService(this);
        if (started && (this.container != null) &&
            (this.container instanceof Lifecycle)) {
            try {
                ((Lifecycle) this.container).start();
            } catch (LifecycleException e) {
                ;
            }
        }
        synchronized (connectors) {
            for (int i = 0; i < connectors.length; i++)
                connectors[i].setContainer(this.container);
        }
        if (started && (oldContainer != null) &&
            (oldContainer instanceof Lifecycle)) {
            try {
                ((Lifecycle) oldContainer).stop();
            } catch (LifecycleException e) {
                ;
            }
        }

        // Report this property change to interested listeners
        support.firePropertyChange("container", oldContainer, this.container);

    }

    public ObjectName getContainerName() {
        if( container instanceof ContainerBase ) {
            return ((ContainerBase)container).getJmxName();
        }
        return null;
    }


    /**
     * Return the debugging detail level of this component.
     */
    public int getDebug() {

        return (this.debug);

    }


    /**
     * Set the debugging detail level of this component.
     *
     * @param debug The new debugging detail level
     */
    public void setDebug(int debug) {

        this.debug = debug;

    }


    /**
     * Return descriptive information about this Service implementation and
     * the corresponding version number, in the format
     * <code>&lt;description&gt;/&lt;version&gt;</code>.
     */
    public String getInfo() {

        return (info);

    }


    /**
     * Return the name of this Service.
     */
    public String getName() {

        return (this.name);

    }


    /**
     * Set the name of this Service.
     *
     * @param name The new service name
     */
    public void setName(String name) {

        this.name = name;

    }


    /**
     * Return the <code>Server</code> with which we are associated (if any).
     */
    public Server getServer() {

        return (this.server);

    }


    /**
     * Set the <code>Server</code> with which we are associated (if any).
     *
     * @param server The server that owns this Service
     */
    public void setServer(Server server) {

        this.server = server;

    }


    // --------------------------------------------------------- Public Methods


    /**
     * Add a new Connector to the set of defined Connectors, and associate it
     * with this Service's Container.
     *
     * @param connector The Connector to be added
     */
    public void addConnector(Connector connector) {

        synchronized (connectors) {
            connector.setContainer(this.container);
            connector.setService(this);
            Connector results[] = new Connector[connectors.length + 1];
            System.arraycopy(connectors, 0, results, 0, connectors.length);
            results[connectors.length] = connector;
            connectors = results;

            if (initialized) {
                try {
                    connector.initialize();
                } catch (LifecycleException e) {
                    e.printStackTrace(System.err);
                }
            }

            if (started && (connector instanceof Lifecycle)) {
                try {
                    ((Lifecycle) connector).start();
                } catch (LifecycleException e) {
                    ;
                }
            }

            // Report this property change to interested listeners
            support.firePropertyChange("connector", null, connector);
        }

    }

    public ObjectName[] getConnectorNames() {
        ObjectName results[] = new ObjectName[connectors.length];