Jetty example source code file (Jetty6RunWarExploded.java)

This example Jetty source code file (Jetty6RunWarExploded.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Jetty tags/keywords

arraylist, arraylist, error, exception, exception, file, file, io, jetty6runwarexploded, mojoexecutionexception, mojoexecutionexception, reconfiguring, restarting, stopping, util, web-inf

The Jetty Jetty6RunWarExploded.java source code

//========================================================================
//$Id: Jetty6RunWarExploded.java 2094 2007-09-10 06:11:26Z janb $
//Copyright 2000-2004 Mort Bay Consulting Pty. Ltd.
//------------------------------------------------------------------------
//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.mortbay.jetty.plugin;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.mortbay.jetty.Connector;
import org.mortbay.util.Scanner;
import org.mortbay.jetty.security.UserRealm;

/**
 * 
 *  <p>
 *  This goal is used to assemble your webapp into an exploded war and automatically deploy it to Jetty.
 *  </p>
 *  <p>
 *  Once invoked, the plugin can be configured to run continuously, scanning for changes in the pom.xml and 
 *  to WEB-INF/web.xml, WEB-INF/classes or WEB-INF/lib and hot redeploy when a change is detected. 
 *  </p>
 *  <p>
 *  You may also specify the location of a jetty.xml file whose contents will be applied before any plugin configuration.
 *  This can be used, for example, to deploy a static webapp that is not part of your maven build. 
 *  </p>
 *  <p>
 *  There is a <a href="run-exploded-mojo.html">reference guide to the configuration parameters for this plugin, and more detailed information
 *  with examples in the <a href="http://docs.codehaus.org/display/JETTY/Maven+Jetty+Plugin">Configuration Guide.
 *  </p>
 *
 *@goal run-exploded
 *@execute phase=package
 */
public class Jetty6RunWarExploded extends AbstractJetty6Mojo
{

    
    
    /**
     * The location of the war file.
     * @parameter expression="${project.build.directory}/${project.build.finalName}"
     * @required
     */
    private File webApp;

    
   
  
   

    /**
     * 
     * @see org.mortbay.jetty.plugin.AbstractJettyMojo#checkPomConfiguration()
     */
    public void checkPomConfiguration() throws MojoExecutionException
    {
        return;
    }

    /**
     * @see org.mortbay.jetty.plugin.AbstractJettyMojo#configureScanner()
     */
    public void configureScanner() throws MojoExecutionException
    {
        final ArrayList scanList = new ArrayList();
        scanList.add(getProject().getFile());
        File webInfDir = new File(webApp,"WEB-INF");
        scanList.add(new File(webInfDir, "web.xml"));
        File jettyWebXmlFile = findJettyWebXmlFile(webInfDir);
        if (jettyWebXmlFile != null)
            scanList.add(jettyWebXmlFile);
        File jettyEnvXmlFile = new File(webInfDir, "jetty-env.xml");
        if (jettyEnvXmlFile.exists())
            scanList.add(jettyEnvXmlFile);
        scanList.add(new File(webInfDir, "classes"));
        scanList.add(new File(webInfDir, "lib"));
        setScanList(scanList);
        
        ArrayList listeners = new ArrayList();
        listeners.add(new Scanner.BulkListener()
        {
            public void filesChanged(List changes)
            {
                try
                {
                    getLog().info("Restarting webapp");
                    getLog().debug("Stopping webapp ...");
                    webAppConfig.stop();
                    getLog().debug("Reconfiguring webapp ...");

                    checkPomConfiguration();
                    
                    // check if we need to reconfigure the scanner,
                    // which is if the pom changes
                    if (changes.contains(getProject().getFile().getCanonicalPath()))
                    {
                        getLog().info("Reconfiguring scanner after change to pom.xml ...");
                        ArrayList scanList = getScanList();
                        scanList.clear();
                        scanList.add(getProject().getFile());
                        File webInfDir = new File(webApp,"WEB-INF");
                        scanList.add(new File(webInfDir, "web.xml"));
                        File jettyWebXmlFile = findJettyWebXmlFile(webInfDir);
                        if (jettyWebXmlFile != null)
                            scanList.add(jettyWebXmlFile);
                        File jettyEnvXmlFile = new File(webInfDir, "jetty-env.xml");
                        if (jettyEnvXmlFile.exists())
                            scanList.add(jettyEnvXmlFile);
                        scanList.add(new File(webInfDir, "classes"));
                        scanList.add(new File(webInfDir, "lib"));
                        setScanList(scanList);
                        getScanner().setScanDirs(scanList);
                    }

                    getLog().debug("Restarting webapp ...");
                    webAppConfig.start();
                    getLog().info("Restart completed.");
                }
                catch (Exception e)
                {
                    getLog().error("Error reconfiguring/restarting webapp after change in watched files",e);
                }
            }
        });
        setScannerListeners(listeners);
    }


    /* (non-Javadoc)
     * @see org.mortbay.jetty.plugin.util.AbstractJettyMojo#finishConfigurationBeforeStart()
     */
    public void finishConfigurationBeforeStart() throws Exception
    {
        return;
    }

    
    
    public void configureWebApplication () throws Exception
    {
        super.configureWebApplication();        
        webAppConfig.setWar(webApp.getCanonicalPath());
        webAppConfig.configure();
    }
    
    public void execute () throws MojoExecutionException, MojoFailureException
    {
        super.execute();
    }
    
}