package org.codehaus.plexus.util.xml;
   
   /*
    * Copyright The Codehaus 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.
   */
  
  import org.codehaus.plexus.util.xml.pull.XmlSerializer;
  
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  import java.util.Stack;
  
  /**
   * Write to an MXSerializer.
   *
   * @author <a href="mailto:brett@codehaus.org">Brett Porter</a>
   *
   */
  public class SerializerXMLWriter
      implements XMLWriter
  {
      private final XmlSerializer serializer;
  
      private final String namespace;
  
      private final Stack<String> elements = new Stack<String>();
  
      private List<Exception> exceptions;
  
      public SerializerXMLWriter( String namespace, XmlSerializer serializer )
      {
          this.serializer = serializer;
          this.namespace = namespace;
      }
  
      @Override
      public void startElement( String name )
      {
          try
          {
              serializer.startTag( namespace, name );
              elements.push( name );
          }
          catch ( IOException e )
          {
              storeException( e );
          }
      }
  
      @Override
      public void addAttribute( String key, String value )
      {
          try
          {
              serializer.attribute( namespace, key, value );
          }
          catch ( IOException e )
          {
              storeException( e );
          }
      }
  
      @Override
      public void writeText( String text )
      {
          try
          {
              serializer.text( text );
          }
          catch ( IOException e )
          {
              storeException( e );
          }
      }
  
      @Override
      public void writeMarkup( String text )
      {
          try
          {
              serializer.cdsect( text );
          }
          catch ( IOException e )
          {
              storeException( e );
         }
     }
 
     @Override
     public void endElement()
     {
         try
         {
             serializer.endTag( namespace, elements.pop() );
         }
         catch ( IOException e )
         {
             storeException( e );
         }
     }
 
     /**
      * @todo Maybe the interface should allow IOExceptions on each?
      */
     private void storeException( IOException e )
     {
         if ( exceptions == null )
         {
             exceptions = new ArrayList<Exception>();
         }
         exceptions.add( e );
     }
 
     public List<Exception> getExceptions()
     {
         return exceptions == null ? Collections.<Exception>emptyList() : exceptions;
     }
 
 }