package org.apache.maven.plugins.site;

 /*

  * 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.

  */

 import org.apache.maven.doxia.siterenderer.RendererException;

 import org.apache.maven.doxia.siterenderer.SiteRenderingContext;

 import org.apache.maven.plugin.MojoExecutionException;

 import org.apache.maven.plugin.MojoFailureException;

 import org.apache.maven.reporting.MavenReport;

 import java.io.File;

 import java.io.IOException;

 import java.util.Collections;

 import java.util.Iterator;

 import java.util.List;

 import java.util.Locale;

 import java.util.Map;

 /**

  * Generates the site for a single project.

  * <p>

  * Note that links between module sites in a multi module build will <b>not</b>

  * work.

  * </p>

  *

  * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>

  * @author <a href="mailto:vincent.siveton@gmail.com">Vincent Siveton</a>

  * @version $Id$

  * @goal site

  * @requiresDependencyResolution test

  */

 public class SiteMojo

     extends AbstractSiteRenderingMojo

 {

     /**

      * Directory containing the generated project sites and report distributions.

      *

      * @parameter expression="${siteOutputDirectory}" default-value="${project.reporting.outputDirectory}"

      * @required

      */

     protected File outputDirectory;

     /**

      * Convenience parameter that allows you to disable report generation.

      *

      * @parameter expression="${generateReports}" default-value="true"

      */

     private boolean generateReports;

     /**

      * Generate a sitemap. The result will be a "sitemap.html" file at the site root.

      *

      * @parameter expression="${generateSitemap}" default-value="false"

      * @since 2.1

      */

     private boolean generateSitemap;

     /**

      * Whether to validate xml input documents.

      * If set to true, <strong>all</strong> input documents in xml format

      * (in particular xdoc and fml) will be validated and any error will

      * lead to a build failure.

      *

      * @parameter expression="${validate}" default-value="false"

      * @since 2.1.1

      */

     private boolean validate;

     /**

      * {@inheritDoc}

      *

      * Generate the project site

      * <p/>

      * throws MojoExecutionException if any

      *

      * @see org.apache.maven.plugin.Mojo#execute()

      */

     public void execute()

         throws MojoExecutionException, MojoFailureException

     {

         List filteredReports;

         if ( generateReports )

         {

             filteredReports = filterReports( reports );

         }

         else

         {

             filteredReports = Collections.EMPTY_LIST;

         }

         try

         {

             List localesList = siteTool.getAvailableLocales( locales );

             // Default is first in the list

             Locale defaultLocale = (Locale) localesList.get( 0 );

             Locale.setDefault( defaultLocale );

             for ( Iterator iterator = localesList.iterator(); iterator.hasNext(); )

             {

                 Locale locale = (Locale) iterator.next();

                 renderLocale( locale, filteredReports );

             }

         }

         catch ( RendererException e )

         {

             throw new MojoExecutionException( "Error during page generation", e );

         }

         catch ( IOException e )

         {

             throw new MojoExecutionException( "Error during site generation", e );

         }

     }

     private void renderLocale( Locale locale,

                                List reports )

         throws IOException, RendererException, MojoFailureException, MojoExecutionException

     {

         SiteRenderingContext context = createSiteRenderingContext( locale );

         context.setInputEncoding( getInputEncoding() );

         context.setOutputEncoding( getOutputEncoding() );

         context.setValidate( validate );

         if ( validate )

         {

             getLog().info( "Validation is switched on, xml input documents will be validated!" );

         }

         Map documents = locateDocuments( context, reports, locale );

         File outputDir = getOutputDirectory( locale );

         // For external reports

         for ( Iterator i = reports.iterator(); i.hasNext(); )

         {

             MavenReport report = (MavenReport) i.next();

             report.setReportOutputDirectory( outputDir );

         }

         siteRenderer.render( documents.values(), context, outputDir );

         if ( generateSitemap )

         {

             getLog().info( "Generating Sitemap." );

             new SiteMap( getOutputEncoding(), i18n )

                     .generate( context.getDecoration(), generatedSiteDirectory, locale );

         }

         // Generated docs must be done afterwards as they are often generated by reports

         context.getSiteDirectories().clear();

         context.addSiteDirectory( generatedSiteDirectory );

         documents = siteRenderer.locateDocumentFiles( context );

         siteRenderer.render( documents.values(), context, outputDir );

     }

     private File getOutputDirectory( Locale locale )

     {

         File file;

         if ( locale.getLanguage().equals( Locale.getDefault().getLanguage() ) )

         {

             file = outputDirectory;

         }

         else

         {

             file = new File( outputDirectory, locale.getLanguage() );

         }

         // Safety

         if ( !file.exists() )

         {

             file.mkdirs();

         }

         return file;

     }

 }