/**
    * Redistribution and use of this software and associated documentation
    * ("Software"), with or without modification, are permitted provided
    * that the following conditions are met:
    *
    * 1. Redistributions of source code must retain copyright
    *    statements and notices.  Redistributions must also contain a
    *    copy of this document.
    *
   * 2. Redistributions in binary form must reproduce the
   *    above copyright notice, this list of conditions and the
   *    following disclaimer in the documentation and/or other
   *    materials provided with the distribution.
   *
   * 3. The name "Exolab" must not be used to endorse or promote
   *    products derived from this Software without prior written
   *    permission of Intalio, Inc.  For written permission,
   *    please contact info@exolab.org.
   *
   * 4. Products derived from this Software may not be called "Exolab"
   *    nor may "Exolab" appear in their names without prior written
   *    permission of Intalio, Inc. Exolab is a registered
   *    trademark of Intalio, Inc.
   *
   * 5. Due credit should be given to the Exolab Project
   *    (http://www.exolab.org/).
   *
   * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
   * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
   * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
   * INTALIO, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
   * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
   * OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * Copyright 1999 (C) Intalio, Inc. All Rights Reserved.
   *
   * $Id$
   */
  
  
  package org.exolab.castor.dsml.mozilla;
  
  
  import java.util.Enumeration;
  import java.util.Vector;
  import org.xml.sax.SAXException;
  import org.xml.sax.AttributeList;
  import org.xml.sax.HandlerBase;
  import netscape.ldap.LDAPEntry;
  import netscape.ldap.LDAPAttribute;
  import netscape.ldap.LDAPAttributeSet;
  
  import org.castor.core.util.Base64Decoder;
  import org.castor.core.util.Messages;
  import org.exolab.castor.dsml.XML;
  
  
  /**
   *
   *
   * @author <a href="mailto:arkin@intalio.com">Assaf Arkin</a>
   * @version $Revision$ $Date: 2006-04-10 16:39:24 -0600 (Mon, 10 Apr 2006) $
   */
  class MozillaEntryConsumer
      extends HandlerBase
  {
  
  
      private String                 _entryDN;
  
  
      private LDAPAttributeSet       _attrSet;
  
  
      private LDAPAttribute          _attr;
  
  
      private StringBuffer           _value;
  
  
      private Base64Decoder  _decoder;
  
  
      private Vector                 _entries = new Vector();
  
  
      MozillaEntryConsumer()
      {
      }
  
  
      public Enumeration getEntries()
      {
 	return _entries.elements();
     }
 
 
     public void startElement( String tagName, AttributeList attr )
 	throws SAXException
     {
 	if ( tagName.equals( XML.Entries.ELEMENT ) ) {
 	    // Do nothing
 	} else if ( tagName.equals( XML.Entries.Elements.ENTRY ) ) {
 	    if ( _attrSet != null )
 		throw new SAXException( Messages.format( "dsml.openingTagNotRecognized", tagName ) );
 	    _attrSet = new LDAPAttributeSet();
 	    _entryDN = attr.getValue( XML.Entries.Attributes.DN );
 	} else if ( tagName.equals( XML.Entries.Elements.OBJECT_CLASS ) ) {
 	    if ( _attrSet == null || _attr != null )
 		throw new SAXException( Messages.format( "dsml.openingTagNotRecognized", tagName ) );
 	    _attr = new LDAPAttribute( "objectclass" );
 	} else if ( tagName.equals( XML.Entries.Elements.ATTRIBUTE ) ) {
 	    if ( _attrSet == null || _attr != null )
 		throw new SAXException( Messages.format( "dsml.openingTagNotRecognized", tagName ) );
 	    _attr = new LDAPAttribute( attr.getValue( XML.Entries.Attributes.NAME ) );
 	} else if ( tagName.equals( XML.Entries.Elements.VALUE ) ||
 		    tagName.equals( XML.Entries.Elements.OBJECT_CLASS_VALUE ) ) {
 	    if ( _attrSet == null || _attr == null || _value != null )
 		throw new SAXException( Messages.format( "dsml.openingTagNotRecognized", tagName ) );
 	    if ( XML.Entries.Attributes.Encodings.BASE64.equals(
 		     attr.getValue( XML.Entries.Attributes.ENCODING ) ) ) {
 		_decoder = new Base64Decoder();
 	    } else {
 		_value = new StringBuffer();
 	    }
 	} else {
 	    throw new SAXException( Messages.format( "dsml.openingTagNotRecognized", tagName ) );
 	}
     }
 	    
 
     public void endElement( String tagName )
 	throws SAXException
     {
 	if ( tagName.equals( XML.Entries.ELEMENT ) ) {
 	    if ( _attrSet != null )
 		throw new SAXException( Messages.format( "dsml.closingTagNotRecognized", tagName ) );
 	} else if ( tagName.equals( XML.Entries.Elements.ENTRY ) ) {
 	    if ( _attrSet == null || _attr != null )
 		throw new SAXException( Messages.format( "dsml.closingTagNotRecognized", tagName ) );
 	    _entries.addElement( new LDAPEntry( _entryDN, _attrSet ) );
 	    _entryDN = null;
 	    _attrSet = null;
 	} else if ( tagName.equals( XML.Entries.Elements.OBJECT_CLASS ) ||
 		    tagName.equals( XML.Entries.Elements.ATTRIBUTE ) ) {
 	    if ( _attrSet == null || _attr == null || _value != null )
 		throw new SAXException( Messages.format( "dsml.closingTagNotRecognized", tagName ) );
 	    _attrSet.add( _attr );
 	    _attr = null;
 	} else if ( tagName.equals( XML.Entries.Elements.VALUE ) ||
 		    tagName.equals( XML.Entries.Elements.OBJECT_CLASS_VALUE ) ) {
 	    if ( _attrSet == null || _attr == null || ( _value == null && _decoder == null ) )
 		throw new SAXException( Messages.format( "dsml.closingTagNotRecognized", tagName ) );
 	    if ( _decoder != null ) {
 		_attr.addValue( _decoder.getByteArray() );
 		_decoder = null;
 	    } else {
 		_attr.addValue( _value.toString() );
 		_value = null;
 	    }
 	} else {
 	    throw new SAXException( Messages.format( "dsml.closingTagNotRecognized", tagName ) );
 	}
     }
 
     public void characters(final char[] chars, final int offset, final int length) {
         if (_decoder != null) {
             _decoder.translate(new String(chars, offset, length));
         } else if (_value != null) {
             _value.append(chars, offset, length);
         }
     }
 }