//
   //  ========================================================================
   //  Copyright (c) 1995-2012 Sabre Holdings.
   //  ------------------------------------------------------------------------
   //  All rights reserved. This program and the accompanying materials
   //  are made available under the terms of the Eclipse Public License v1.0
   //  and Apache License v2.0 which accompanies this distribution.
   //
   //      The Eclipse Public License is available at
  //      http://www.eclipse.org/legal/epl-v10.html
  //
  //      The Apache License v2.0 is available at
  //      http://www.opensource.org/licenses/apache2.0.php
  //
  //  You may elect to redistribute this code under either of these licenses.
  //  ========================================================================
  //
  
  package org.eclipse.jetty.ant;
  
  import java.io.File;
  import java.util.Iterator;
  import java.util.List;
  
  import org.eclipse.jetty.ant.utils.TaskLog;
  import org.eclipse.jetty.util.log.Log;
  import org.eclipse.jetty.util.log.Logger;
  import org.eclipse.jetty.webapp.WebAppClassLoader;
  import org.eclipse.jetty.webapp.WebAppContext;
  import org.eclipse.jetty.webapp.WebXmlConfiguration;
  
  
  /**
   * This configuration object provides additional way to inject application
   * properties into the configured web application. The list of classpath files,
   * the application base directory and web.xml file could be specified in this
   * way.
   */
  public class AntWebXmlConfiguration extends WebXmlConfiguration
  {
      private static final Logger LOG = Log.getLogger(WebXmlConfiguration.class);
  
  
  
      /** List of classpath files. */
      private List classPathFiles;
  
      /** Web application root directory. */
      private File webAppBaseDir;
  
      /** Web application web.xml file. */
      private File webXmlFile;
  
      private File webDefaultXmlFile;
  
      public AntWebXmlConfiguration() throws ClassNotFoundException
      {
      }
  
      public File getWebDefaultXmlFile()
      {
          return this.webDefaultXmlFile;
      }
  
      public void setWebDefaultXmlFile(File webDefaultXmlfile)
      {
          this.webDefaultXmlFile = webDefaultXmlfile;
      }
  
      public void setClassPathFiles(List classPathFiles)
      {
          this.classPathFiles = classPathFiles;
      }
  
      public void setWebAppBaseDir(File webAppBaseDir)
      {
          this.webAppBaseDir = webAppBaseDir;
      }
  
      public void setWebXmlFile(File webXmlFile)
      {
          this.webXmlFile = webXmlFile;
  
          if (webXmlFile.exists())
          {
              TaskLog.log("web.xml file = " + webXmlFile);
          }
      }
  
      /**
       * Adds classpath files into web application classloader, and
       * sets web.xml and base directory for the configured web application.
       *
       * @see WebXmlConfiguration#configure(WebAppContext)
       */
      public void configure(WebAppContext context) throws Exception
      {
          if (context.isStarted())
          {
             TaskLog.log("Cannot configure webapp after it is started");
             return;
         }
 
 
         if (webXmlFile.exists())
         {
             context.setDescriptor(webXmlFile.getCanonicalPath());
         }
 
         super.configure(context);
 
         Iterator filesIterator = classPathFiles.iterator();
 
         while (filesIterator.hasNext())
         {
             File classPathFile = (File) filesIterator.next();
             if (classPathFile.exists())
             {
                 ((WebAppClassLoader) context.getClassLoader())
                         .addClassPath(classPathFile.getCanonicalPath());
             }
         }
     }
 }