catalina.java

业界著名的tomcat服务器的最新6.0的源代码。

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.catalina.startup;


import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;
import org.apache.catalina.Container;
import org.apache.catalina.Lifecycle;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.Server;
import org.apache.catalina.core.StandardServer;
import org.apache.tomcat.util.digester.Digester;
import org.apache.tomcat.util.digester.Rule;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;


/**
 * Startup/Shutdown shell program for Catalina.  The following command line
 * options are recognized:
 * <ul>
 * <li><b>-config {pathname}</b> - Set the pathname of the configuration file
 *     to be processed.  If a relative path is specified, it will be
 *     interpreted as relative to the directory pathname specified by the
 *     "catalina.base" system property.   [conf/server.xml]
 * <li><b>-help</b> - Display usage information.
 * <li><b>-stop</b> - Stop the currently running instance of Catalina.
 * </u>
 *
 * Should do the same thing as Embedded, but using a server.xml file.
 *
 * @author Craig R. McClanahan
 * @author Remy Maucherat
 * @version $Revision: 467222 $ $Date: 2006-10-24 05:17:11 +0200 (mar., 24 oct. 2006) $
 */

public class Catalina extends Embedded {


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


    /**
     * Pathname to the server configuration file.
     */
    protected String configFile = "conf/server.xml";

    // XXX Should be moved to embedded
    /**
     * The shared extensions class loader for this server.
     */
    protected ClassLoader parentClassLoader =
        Catalina.class.getClassLoader();


    /**
     * The server component we are starting or stopping
     */
    protected Server server = null;


    /**
     * Are we starting a new server?
     */
    protected boolean starting = false;


    /**
     * Are we stopping an existing server?
     */
    protected boolean stopping = false;


    /**
     * Use shutdown hook flag.
     */
    protected boolean useShutdownHook = true;


    /**
     * Shutdown hook.
     */
    protected Thread shutdownHook = null;


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


    public void setConfig(String file) {
        configFile = file;
    }


    public void setConfigFile(String file) {
        configFile = file;
    }


    public String getConfigFile() {
        return configFile;
    }


    public void setUseShutdownHook(boolean useShutdownHook) {
        this.useShutdownHook = useShutdownHook;
    }


    public boolean getUseShutdownHook() {
        return useShutdownHook;
    }


    /**
     * Set the shared extensions class loader.
     *
     * @param parentClassLoader The shared extensions class loader.
     */
    public void setParentClassLoader(ClassLoader parentClassLoader) {

        this.parentClassLoader = parentClassLoader;

    }


    /**
     * Set the server instance we are configuring.
     *
     * @param server The new server
     */
    public void setServer(Server server) {

        this.server = server;

    }

    // ----------------------------------------------------------- Main Program

    /**
     * The application main program.
     *
     * @param args Command line arguments
     */
    public static void main(String args[]) {
        (new Catalina()).process(args);
    }


    /**
     * The instance main program.
     *
     * @param args Command line arguments
     */
    public void process(String args[]) {

        setAwait(true);
        setCatalinaHome();
        setCatalinaBase();
        try {
            if (arguments(args)) {
                if (starting) {
                    load(args);
                    start();
                } else if (stopping) {
                    stopServer();
                }
            }
        } catch (Exception e) {
            e.printStackTrace(System.out);
        }
    }


    // ------------------------------------------------------ Protected Methods


    /**
     * Process the specified command line arguments, and return
     * <code>true</code> if we should continue processing; otherwise
     * return <code>false</code>.
     *
     * @param args Command line arguments to process
     */
    protected boolean arguments(String args[]) {

        boolean isConfig = false;

        if (args.length < 1) {
            usage();
            return (false);
        }

        for (int i = 0; i < args.length; i++) {
            if (isConfig) {
                configFile = args[i];
                isConfig = false;
            } else if (args[i].equals("-config")) {
                isConfig = true;
            } else if (args[i].equals("-nonaming")) {
                setUseNaming( false );
            } else if (args[i].equals("-help")) {
                usage();
                return (false);
            } else if (args[i].equals("start")) {
                starting = true;
                stopping = false;
            } else if (args[i].equals("stop")) {
                starting = false;
                stopping = true;
            } else {
                usage();
                return (false);
            }
        }

        return (true);

    }


    /**
     * Return a File object representing our configuration file.
     */
    protected File configFile() {

        File file = new File(configFile);
        if (!file.isAbsolute())
            file = new File(System.getProperty("catalina.base"), configFile);
        return (file);

    }


    /**
     * Create and configure the Digester we will be using for startup.
     */
    protected Digester createStartDigester() {
        long t1=System.currentTimeMillis();
        // Initialize the digester
        Digester digester = new Digester();
        digester.setValidating(false);
        digester.setClassLoader(StandardServer.class.getClassLoader());

        // Configure the actions we will be using
        digester.addObjectCreate("Server",
                                 "org.apache.catalina.core.StandardServer",
                                 "className");
        digester.addSetProperties("Server");
        digester.addSetNext("Server",
                            "setServer",
                            "org.apache.catalina.Server");

        digester.addObjectCreate("Server/GlobalNamingResources",
                                 "org.apache.catalina.deploy.NamingResources");
        digester.addSetProperties("Server/GlobalNamingResources");
        digester.addSetNext("Server/GlobalNamingResources",
                            "setGlobalNamingResources",
                            "org.apache.catalina.deploy.NamingResources");

        digester.addObjectCreate("Server/Listener",
                                 null, // MUST be specified in the element
                                 "className");
        digester.addSetProperties("Server/Listener");
        digester.addSetNext("Server/Listener",
                            "addLifecycleListener",
                            "org.apache.catalina.LifecycleListener");

        digester.addObjectCreate("Server/Service",
                                 "org.apache.catalina.core.StandardService",
                                 "className");
        digester.addSetProperties("Server/Service");
        digester.addSetNext("Server/Service",
                            "addService",
                            "org.apache.catalina.Service");

        digester.addObjectCreate("Server/Service/Listener",
                                 null, // MUST be specified in the element
                                 "className");
        digester.addSetProperties("Server/Service/Listener");
        digester.addSetNext("Server/Service/Listener",
                            "addLifecycleListener",
                            "org.apache.catalina.LifecycleListener");

        digester.addRule("Server/Service/Connector",
                         new ConnectorCreateRule());
        digester.addRule("Server/Service/Connector", 
                         new SetAllPropertiesRule());
        digester.addSetNext("Server/Service/Connector",
                            "addConnector",
                            "org.apache.catalina.connector.Connector");

        digester.addObjectCreate("Server/Service/Connector/Listener",
                                 null, // MUST be specified in the element
                                 "className");
        digester.addSetProperties("Server/Service/Connector/Listener");
        digester.addSetNext("Server/Service/Connector/Listener",
                            "addLifecycleListener",
                            "org.apache.catalina.LifecycleListener");

        // Add RuleSets for nested elements
        digester.addRuleSet(new NamingRuleSet("Server/GlobalNamingResources/"));
        digester.addRuleSet(new EngineRuleSet("Server/Service/"));
        digester.addRuleSet(new HostRuleSet("Server/Service/Engine/"));
        digester.addRuleSet(new ContextRuleSet("Server/Service/Engine/Host/"));
        digester.addRuleSet(ClusterRuleSetFactory.getClusterRuleSet("Server/Service/Engine/Host/Cluster/"));
        digester.addRuleSet(new NamingRuleSet("Server/Service/Engine/Host/Context/"));

        // When the 'engine' is found, set the parentClassLoader.
        digester.addRule("Server/Service/Engine",
                         new SetParentClassLoaderRule(parentClassLoader));
        digester.addRuleSet(ClusterRuleSetFactory.getClusterRuleSet("Server/Service/Engine/Cluster/"));

        long t2=System.currentTimeMillis();
        if (log.isDebugEnabled())
            log.debug("Digester for server.xml created " + ( t2-t1 ));
        return (digester);

    }


    /**
     * Create and configure the Digester we will be using for shutdown.
     */
    protected Digester createStopDigester() {