/*

  * Copyright 2001-2005 The Apache Software Foundation.

  *

  * 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.apache.maven.plugin.eclipse.writers;

 import java.io.File;

 import java.io.FileWriter;

 import java.io.IOException;

 import org.apache.maven.artifact.repository.ArtifactRepository;

 import org.apache.maven.plugin.MojoExecutionException;

 import org.apache.maven.plugin.eclipse.EclipseSourceDir;

 import org.apache.maven.plugin.eclipse.Messages;

 import org.apache.maven.plugin.ide.IdeUtils;

 import org.codehaus.plexus.util.IOUtil;

 import org.codehaus.plexus.util.xml.PrettyPrintXMLWriter;

 import org.codehaus.plexus.util.xml.XMLWriter;

 /**

  * Creates a .settings folder for Eclipse WTP 1.x release and writes out the configuration under it.

  *

  * @author <a href="mailto:rahul.thakur.xdev@gmail.com">Rahul Thakur</a>

  * @author <a href="mailto:fgiust@apache.org">Fabrizio Giustina</a>

  * @version $Id: EclipseWtpComponentWriter.java 472126 2006-11-07 14:34:59Z kenney $

  */

 public class EclipseWtpComponentWriter

     extends AbstractWtpResourceWriter

 {

     /**

      * Context root attribute.

      */

     public static final String ATTR_CONTEXT_ROOT = "context-root"; //$NON-NLS-1$

     /**

      * The .settings folder for Web Tools Project 1.x release.

      */

     public static final String DIR_WTP_SETTINGS = ".settings"; //$NON-NLS-1$

     /**

      * File name where the WTP component settings will be stored for our Eclipse Project.

      * @return <code>.component</code>

      */

     protected String getComponentFileName()

     {

         return ".component"; //$NON-NLS-1$

     }

     /**

      * Version number added to component configuration.

      * @return <code>1.0</code>

      */

     protected String getProjectVersion()

     {

         return null;

     }

     /**

      * @see org.apache.maven.plugin.eclipse.writers.EclipseWriter#write()

      */

     public void write()

         throws MojoExecutionException

     {

         // create a .settings directory (if not existing)

         File settingsDir = new File( config.getEclipseProjectDirectory(), DIR_WTP_SETTINGS );

         settingsDir.mkdirs();

         FileWriter w;

         try

         {

             w = new FileWriter( new File( settingsDir, getComponentFileName() ) );

         }

         catch ( IOException ex )

         {

             throw new MojoExecutionException( Messages.getString( "EclipsePlugin.erroropeningfile" ), ex ); //$NON-NLS-1$

         }

         // create a .component file and write out to it

         XMLWriter writer = new PrettyPrintXMLWriter( w );

         writeModuleTypeComponent( writer, config.getProject().getPackaging(), config.getBuildOutputDirectory(), config.getSourceDirs(),

             config.getLocalRepository() );

         IOUtil.close( w );

     }

     /**

      * Writes out the module type settings for a Web Tools Project to a component file.

      *

      * @param writer

      * @param packaging

      * @param buildOutputDirectory

      *  @param sourceDirs

      * @param localRepository

      * @throws MojoExecutionException

      */

     private void writeModuleTypeComponent( XMLWriter writer, String packaging, File buildOutputDirectory,

                                            EclipseSourceDir[] sourceDirs, ArtifactRepository localRepository )

         throws MojoExecutionException

     {

         writer.startElement( ELT_PROJECT_MODULES );

         writer.addAttribute( ATTR_MODULE_ID, "moduleCoreId" ); //$NON-NLS-1$

         if ( getProjectVersion() != null )

         {

             writer.addAttribute( ATTR_PROJECT_VERSION, getProjectVersion() );

         }

         writer.startElement( ELT_WB_MODULE );

         writer.addAttribute( ATTR_DEPLOY_NAME, config.getProject().getArtifactId() );

         // deploy-path is "/" for utility and ejb projects, "/WEB-INF/classes" for webapps

         String target = "/"; //$NON-NLS-1$

         if ( "war".equalsIgnoreCase( packaging ) ) //$NON-NLS-1$

         {

             target = "/WEB-INF/classes"; //$NON-NLS-1$

             String warSourceDirectory = IdeUtils.getPluginSetting( config.getProject(), ARTIFACT_MAVEN_WAR_PLUGIN,

                                                                    "warSourceDirectory", //$NON-NLS-1$

                                                                    "/src/main/webapp" ); //$NON-NLS-1$

             writeContextRoot( writer );

             writer.startElement( ELT_WB_RESOURCE );

             writer.addAttribute( ATTR_DEPLOY_PATH, "/" ); //$NON-NLS-1$

             writer.addAttribute( ATTR_SOURCE_PATH, IdeUtils

                 .toRelativeAndFixSeparator( config.getProject().getBasedir(), new File( config

                     .getEclipseProjectDirectory(), warSourceDirectory ), false ) );

             writer.endElement();

             // @todo is this really needed?

             writer.startElement( ELT_PROPERTY );

             writer.addAttribute( ATTR_NAME, "java-output-path" ); //$NON-NLS-1$

             writer.addAttribute( ATTR_VALUE, "/" //$NON-NLS-1$

                 + IdeUtils.toRelativeAndFixSeparator( config.getProject().getBasedir(), buildOutputDirectory, false ) );

             writer.endElement(); // property

         }

         else if ( "ear".equalsIgnoreCase( packaging ) ) //$NON-NLS-1$

         {

             writer.startElement( ELT_WB_RESOURCE );

             writer.addAttribute( ATTR_DEPLOY_PATH, "/" ); //$NON-NLS-1$

             writer.addAttribute( ATTR_SOURCE_PATH, "/" ); //$NON-NLS-1$

             writer.endElement();

         }

         if ( "war".equalsIgnoreCase( packaging ) || "ear".equalsIgnoreCase( packaging ) ) //$NON-NLS-1$ //$NON-NLS-2$

         {

             // write out the dependencies.

             writeWarOrEarResources( writer, config.getProject(), localRepository );

         }

         for ( int j = 0; j < sourceDirs.length; j++ )

         {

             EclipseSourceDir dir = sourceDirs[j];

             // test src/resources are not added to wtpmodules

             if ( !dir.isTest() )

             {

                 // <wb-resource deploy-path="/" source-path="/src/java" />

                 writer.startElement( ELT_WB_RESOURCE );

                 writer.addAttribute( ATTR_DEPLOY_PATH, target );

                 writer.addAttribute( ATTR_SOURCE_PATH, dir.getPath() );

                 writer.endElement();

             }

         }

         writer.endElement(); // wb-module

         writer.endElement(); // project-modules

     }

     /**

      * @param writer

      */

     protected void writeContextRoot( XMLWriter writer )

     {

         writer.startElement( ELT_PROPERTY );

         writer.addAttribute( ATTR_CONTEXT_ROOT, config.getProject().getArtifactId() );

         writer.endElement(); // property

     }

 }