package org.apache.maven.plugins.ear;
   
   /*
    * 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 java.io.IOException;
  import java.io.Writer;
  
  import org.apache.maven.plugins.ear.util.JavaEEVersion;
  import org.codehaus.plexus.util.xml.XMLWriter;
  
  /**
   * An <code>XmlWriter</code> based implementation used to generate an {@code application.xml} file.
   * 
   * @author <a href="snicoll@apache.org">Stephane Nicoll</a>
   */
  final class ApplicationXmlWriter
      extends AbstractXmlWriter
  {
      //@formatter:off
      public static final String DOCTYPE_1_3 = "application PUBLIC\n" 
              + "\t\"-//Sun Microsystems, Inc.//DTD J2EE Application 1.3//EN\"\n"
              + "\t\"http://java.sun.com/dtd/application_1_3.dtd\"";
      //@formatter:on
  
      private static final String APPLICATION_ELEMENT = "application";
  
      private final JavaEEVersion version;
  
      private final Boolean generateModuleId;
  
      ApplicationXmlWriter( JavaEEVersion version, String encoding, Boolean generateModuleId )
      {
          super( encoding );
          this.version = version;
          this.generateModuleId = generateModuleId;
      }
  
      void write( ApplicationXmlWriterContext context )
          throws EarPluginException
      {
          try ( Writer w = initializeWriter( context.getDestinationFile() ) )
          {
              XMLWriter writer = null;
              if ( JavaEEVersion.ONE_DOT_THREE.eq( version ) )
              {
                  writer = initializeRootElementOneDotThree( w );
              }
              else if ( JavaEEVersion.ONE_DOT_FOUR.eq( version ) )
              {
                  writer = initializeRootElementOneDotFour( w );
              }
              else if ( JavaEEVersion.FIVE.eq( version ) )
              {
                  writer = initializeRootElementFive( w );
              }
              else if ( JavaEEVersion.SIX.eq( version ) )
              {
                  writer = initializeRootElementSix( w );
              }
              else if ( JavaEEVersion.SEVEN.eq( version ) )
              {
                  writer = initializeRootElementSeven( w );
              }
              else if ( JavaEEVersion.EIGHT.eq( version ) )
              {
                  writer = initializeRootElementEight( w );
              }
      
              // writer is still on root element, so we can still add this attribute
              if ( context.getApplicationId() != null )
              {
                  writer.addAttribute( "id", context.getApplicationId() );
              }
      
              // As from JavaEE6
              if ( version.ge( JavaEEVersion.SIX ) )
              {
                  writeApplicationName( context.getApplicationName(), writer );
              }
      
              // IMPORTANT: the order of the description and display-name elements was
              // reversed between J2EE 1.3 and J2EE 1.4.
             if ( version.eq( JavaEEVersion.ONE_DOT_THREE ) )
             {
                 writeDisplayName( context.getDisplayName(), writer );
                 writeDescription( context.getDescription(), writer );
             }
             else
             {
                 writeDescription( context.getDescription(), writer );
                 writeDisplayName( context.getDisplayName(), writer );
             }
     
             // As from JavaEE6
             if ( version.ge( JavaEEVersion.SIX ) )
             {
                 writeInitializeInOrder( context.getInitializeInOrder(), writer );
             }
     
             // Do not change this unless you really know what you're doing :)
             for ( EarModule module : context.getEarModules() )
             {
                 module.appendModule( writer, version.getVersion(), generateModuleId );
             }
     
             for ( SecurityRole securityRole : context.getSecurityRoles() )
             {
                 securityRole.appendSecurityRole( writer );
             }
     
             if ( version.ge( JavaEEVersion.FIVE ) )
             {
                 writeLibraryDirectory( context.getLibraryDirectory(), writer );
             }
     
             if ( version.ge( JavaEEVersion.SIX ) )
             {
                 for ( EnvEntry envEntry : context.getEnvEntries() )
                 {
                     envEntry.appendEnvEntry( writer );
                 }
                 for ( EjbRef ejbEntry : context.getEjbEntries() )
                 {
                     ejbEntry.appendEjbRefEntry( writer );
                 }
                 for ( ResourceRef resourceEntry : context.getResourceRefs() )
                 {
                     resourceEntry.appendResourceRefEntry( writer );
                 }
             }
     
             writer.endElement();
         }
         catch ( IOException ex )
         {
             // ignore
         }
     }
 
     private void writeApplicationName( String applicationName, XMLWriter writer )
     {
         if ( applicationName != null )
         {
             writer.startElement( "application-name" );
             writer.writeText( applicationName );
             writer.endElement();
         }
     }
 
     private void writeDescription( String description, XMLWriter writer )
     {
         if ( description != null )
         {
             writer.startElement( "description" );
             writer.writeText( description );
             writer.endElement();
         }
     }
 
     private void writeDisplayName( String displayName, XMLWriter writer )
     {
         if ( displayName != null )
         {
             writer.startElement( "display-name" );
             writer.writeText( displayName );
             writer.endElement();
         }
     }
 
     private void writeInitializeInOrder( Boolean initializeInOrder, XMLWriter writer )
     {
         if ( initializeInOrder != null )
         {
             writer.startElement( "initialize-in-order" );
             writer.writeText( initializeInOrder.toString() );
             writer.endElement();
         }
     }
 
     private void writeLibraryDirectory( String libraryDirectory, XMLWriter writer )
     {
         if ( libraryDirectory != null )
         {
             writer.startElement( "library-directory" );
             writer.writeText( libraryDirectory );
             writer.endElement();
         }
     }
 
     private XMLWriter initializeRootElementOneDotThree( Writer w )
     {
         XMLWriter writer = initializeXmlWriter( w, DOCTYPE_1_3 );
         writer.startElement( APPLICATION_ELEMENT );
         return writer;
     }
 
     private XMLWriter initializeRootElementOneDotFour( Writer w )
     {
         XMLWriter writer = initializeXmlWriter( w, null );
         writer.startElement( APPLICATION_ELEMENT );
         writer.addAttribute( "xmlns", "http://java.sun.com/xml/ns/j2ee" );
         writer.addAttribute( "xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance" );
         writer.addAttribute( "xsi:schemaLocation",
                              "http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/application_1_4.xsd" );
         writer.addAttribute( "version", "1.4" );
         return writer;
     }
 
     private XMLWriter initializeRootElementFive( Writer w )
     {
         XMLWriter writer = initializeXmlWriter( w, null );
         writer.startElement( APPLICATION_ELEMENT );
         writer.addAttribute( "xmlns", "http://java.sun.com/xml/ns/javaee" );
         writer.addAttribute( "xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance" );
         writer.addAttribute( "xsi:schemaLocation",
                              "http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/application_5.xsd" );
         writer.addAttribute( "version", "5" );
         return writer;
     }
 
     private XMLWriter initializeRootElementSix( Writer w )
     {
         XMLWriter writer = initializeXmlWriter( w, null );
         writer.startElement( APPLICATION_ELEMENT );
         writer.addAttribute( "xmlns", "http://java.sun.com/xml/ns/javaee" );
         writer.addAttribute( "xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance" );
         writer.addAttribute( "xsi:schemaLocation",
                              "http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/application_6.xsd" );
         writer.addAttribute( "version", "6" );
         return writer;
     }
 
     private XMLWriter initializeRootElementSeven( Writer w )
     {
         XMLWriter writer = initializeXmlWriter( w, null );
         writer.startElement( APPLICATION_ELEMENT );
         writer.addAttribute( "xmlns", "http://xmlns.jcp.org/xml/ns/javaee" );
         writer.addAttribute( "xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance" );
         writer.addAttribute( "xsi:schemaLocation",
             "http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/application_7.xsd" );
         writer.addAttribute( "version", "7" );
         return writer;
     }
 
     private XMLWriter initializeRootElementEight( Writer w )
     {
         XMLWriter writer = initializeXmlWriter( w, null );
         writer.startElement( APPLICATION_ELEMENT );
         writer.addAttribute( "xmlns", "http://xmlns.jcp.org/xml/ns/javaee" );
         writer.addAttribute( "xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance" );
         writer.addAttribute( "xsi:schemaLocation",
             "http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/application_8.xsd" );
         writer.addAttribute( "version", "8" );
         return writer;
     }
 }