001    /**
002     * ========================================
003     * JFreeReport : a free Java report library
004     * ========================================
005     *
006     * Project Info:  http://reporting.pentaho.org/
007     *
008     * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
009     *
010     * This library is free software; you can redistribute it and/or modify it under the terms
011     * of the GNU Lesser General Public License as published by the Free Software Foundation;
012     * either version 2.1 of the License, or (at your option) any later version.
013     *
014     * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
015     * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
016     * See the GNU Lesser General Public License for more details.
017     *
018     * You should have received a copy of the GNU Lesser General Public License along with this
019     * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
020     * Boston, MA 02111-1307, USA.
021     *
022     * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
023     * in the United States and other countries.]
024     *
025     * ------------
026     * $Id: FlowOperationReadHandler.java 2725 2007-04-01 18:49:29Z taqua $
027     * ------------
028     * (C) Copyright 2000-2005, by Object Refinery Limited.
029     * (C) Copyright 2005-2007, by Pentaho Corporation.
030     */
031    package org.jfree.report.modules.factories.report.flow;
032    
033    import org.jfree.report.flow.FlowControlOperation;
034    import org.jfree.xmlns.parser.AbstractXmlReadHandler;
035    import org.jfree.xmlns.parser.ParseException;
036    import org.xml.sax.Attributes;
037    import org.xml.sax.SAXException;
038    
039    /**
040     * Creation-Date: 09.04.2006, 14:47:59
041     *
042     * @author Thomas Morgner
043     */
044    public class FlowOperationReadHandler extends AbstractXmlReadHandler
045    {
046      private FlowControlOperation operation;
047    
048      public FlowOperationReadHandler()
049      {
050      }
051    
052      /**
053       * Starts parsing.
054       *
055       * @param attrs the attributes.
056       * @throws SAXException if there is a parsing error.
057       */
058      protected void startParsing(final Attributes attrs) throws SAXException
059      {
060        final String value = attrs.getValue(getUri(), "operation");
061        if (value == null)
062        {
063          throw new ParseException("Required attribute 'operation' is missing.", getLocator());
064        }
065        final String valueTrimmed = value.trim();
066        if (FlowControlOperation.ADVANCE.toString().equals(valueTrimmed))
067        {
068          operation = FlowControlOperation.ADVANCE;
069        }
070        else if (FlowControlOperation.COMMIT.toString().equals(valueTrimmed))
071        {
072          operation = FlowControlOperation.COMMIT;
073        }
074        else if (FlowControlOperation.DONE.toString().equals(valueTrimmed))
075        {
076          operation = FlowControlOperation.DONE;
077        }
078        else if (FlowControlOperation.MARK.toString().equals(valueTrimmed))
079        {
080          operation = FlowControlOperation.MARK;
081        }
082        else if (FlowControlOperation.NO_OP.toString().equals(valueTrimmed))
083        {
084          operation = FlowControlOperation.NO_OP;
085        }
086        else if (FlowControlOperation.RECALL.toString().equals(valueTrimmed))
087        {
088          operation = FlowControlOperation.RECALL;
089        }
090        else
091        {
092          throw new ParseException("attribute 'operation' has an invalid value.", getLocator());
093        }
094      }
095    
096      public FlowControlOperation getOperation()
097      {
098        return operation;
099      }
100    
101      /**
102       * Returns the object for this element or null, if this element does not
103       * create an object.
104       *
105       * @return the object.
106       * @throws SAXException if there is a parsing error.
107       */
108      public Object getObject() throws SAXException
109      {
110        return operation;
111      }
112    }