package org.codehaus.mojo.gwt.shell;
   
   /*
    * I18NMojo.java
    *
    * Created on August 19th, 2008
    *
    * This library is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
   *
   */
  
  import java.io.File;
  
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugin.MojoFailureException;
  import org.apache.maven.plugins.annotations.LifecyclePhase;
  import org.apache.maven.plugins.annotations.Mojo;
  import org.apache.maven.plugins.annotations.Parameter;
  import org.apache.maven.plugins.annotations.ResolutionScope;
  
  /**
   * Creates I18N interfaces for constants and messages files.
   *
   * @author <a href="mailto:sascha@kulawik.de">Sascha-Matthias Kulawik</a>
   * @author ccollins
   * @version $Id$
   */
  @Mojo(name = "i18n", defaultPhase = LifecyclePhase.GENERATE_SOURCES, requiresDependencyResolution = ResolutionScope.COMPILE, threadSafe = true)
  public class I18NMojo
      extends AbstractGwtShellMojo
  {
      /**
       * List of resourceBundles that should be used to generate i18n Messages interfaces.
       */
      @Parameter(alias = "i18nMessagesNames")
      private String[] i18nMessagesBundles;
  
      /**
       * Shortcut for a single i18nMessagesBundle
       */
      @Parameter
      private String i18nMessagesBundle;
  
      /**
       * List of resourceBundles that should be used to generate i18n Constants interfaces.
       */
      @Parameter(alias = "i18nConstantsNames")
      private String[] i18nConstantsBundles;
  
      /**
       * Shortcut for a single i18nConstantsBundle
       */
      @Parameter
      private String i18nConstantsBundle;
  
      /**
       * List of resourceBundles that should be used to generate i18n ConstantsWithLookup interfaces.
       */
      @Parameter
      private String[] i18nConstantsWithLookupBundles;
  
      /**
       * Shortcut for a single i18nConstantsWithLookupBundle
       */
      @Parameter
      private String i18nConstantsWithLookupBundle;
  
      
      @Override
      protected boolean isGenerator() {
          return true;
      }
      
      public void doExecute( )
          throws MojoExecutionException, MojoFailureException
      {
          setup();
  
          try {
              // constants with lookup
              if ( i18nConstantsWithLookupBundles != null )
              {
                  for ( String target : i18nConstantsWithLookupBundles )
                  {
                      ensureTargetPackageExists( getGenerateDirectory(), target );
                      createJavaCommand()
                         .setMainClass( "com.google.gwt.i18n.tools.I18NSync" )
                         .addToClasspath( getClasspath( Artifact.SCOPE_COMPILE ) )
                         .addToClasspath( getGwtUserJar() )
                         .addToClasspath( getGwtDevJar() )
                         .arg( "-out", getGenerateDirectory().getAbsolutePath() )
                         .arg( "-createConstantsWithLookup" )
                         .arg( target )
                         .execute();
                 }
             }
 
             // constants
             if ( i18nConstantsBundles != null )
             {
                 for ( String target : i18nConstantsBundles )
                 {
                     ensureTargetPackageExists( getGenerateDirectory(), target );
                     createJavaCommand()
                         .setMainClass( "com.google.gwt.i18n.tools.I18NSync" )
                         .addToClasspath( getClasspath( Artifact.SCOPE_COMPILE ) )
                         .addToClasspath( getGwtUserJar() )
                         .addToClasspath( getGwtDevJar() )
                         .arg( "-out", getGenerateDirectory().getAbsolutePath() )
                         .arg( target )
                         .execute();
                 }
             }
 
             // messages
             if ( i18nMessagesBundles != null )
             {
                 for ( String target : i18nMessagesBundles )
                 {
                     ensureTargetPackageExists( getGenerateDirectory(), target );
                     createJavaCommand()
                         .setMainClass( "com.google.gwt.i18n.tools.I18NSync" )
                         .addToClasspath( getClasspath( Artifact.SCOPE_COMPILE ) )
                         .addToClasspath( getGwtUserJar() )
                         .addToClasspath( getGwtDevJar() )
                         .arg( "-out", getGenerateDirectory().getAbsolutePath() )
                         .arg( "-createMessages" )
                         .arg( target )
                         .execute();
                 }
             }
         }
         catch (JavaCommandException e)
         {
             throw new MojoExecutionException( e.getMessage(), e );
         }
     }
 
 
     private void setup()
         throws MojoExecutionException
     {
         if ( i18nConstantsWithLookupBundles == null && i18nConstantsWithLookupBundle != null )
         {
             i18nConstantsWithLookupBundles = new String[] { i18nConstantsWithLookupBundle };
         }
 
         if ( i18nConstantsBundles == null && i18nConstantsBundle != null )
         {
             i18nConstantsBundles = new String[] { i18nConstantsBundle };
         }
 
         if ( i18nMessagesBundles == null && i18nMessagesBundle != null )
         {
             i18nMessagesBundles = new String[] { i18nMessagesBundle };
         }
 
         if ( i18nMessagesBundles == null && i18nConstantsBundles == null && i18nConstantsWithLookupBundles == null )
         {
             throw new MojoExecutionException(
                 "neither i18nConstantsBundles, i18nMessagesBundles nor i18nConstantsWithLookupBundles present. \n"
                 + "Cannot execute i18n goal" );
         }
 
         setupGenerateDirectory();
     }
 
 
     private void ensureTargetPackageExists( File generateDirectory, String targetName )
     {
         targetName = targetName.substring( 0, targetName.lastIndexOf( '.' ) );
         String targetPackage = targetName.replace( '.', File.separatorChar );
         getLog().debug( "ensureTargetPackageExists, targetName : " + targetName + ", targetPackage : " + targetPackage );
         File targetPackageDirectory = new File( generateDirectory, targetPackage );
         if ( !targetPackageDirectory.exists() )
         {
             targetPackageDirectory.mkdirs();
         }
     }
 
 }