Source for org.jfree.report.modules.factories.report.flow.FlowOperationReadHandler

   1: /**
   2:  * ========================================
   3:  * JFreeReport : a free Java report library
   4:  * ========================================
   5:  *
   6:  * Project Info:  http://reporting.pentaho.org/
   7:  *
   8:  * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
   9:  *
  10:  * This library is free software; you can redistribute it and/or modify it under the terms
  11:  * of the GNU Lesser General Public License as published by the Free Software Foundation;
  12:  * either version 2.1 of the License, or (at your option) any later version.
  13:  *
  14:  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
  15:  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  16:  * See the GNU Lesser General Public License for more details.
  17:  *
  18:  * You should have received a copy of the GNU Lesser General Public License along with this
  19:  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  20:  * Boston, MA 02111-1307, USA.
  21:  *
  22:  * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
  23:  * in the United States and other countries.]
  24:  *
  25:  * ------------
  26:  * $Id: FlowOperationReadHandler.java 2725 2007-04-01 18:49:29Z taqua $
  27:  * ------------
  28:  * (C) Copyright 2000-2005, by Object Refinery Limited.
  29:  * (C) Copyright 2005-2007, by Pentaho Corporation.
  30:  */
  31: package org.jfree.report.modules.factories.report.flow;
  32: 
  33: import org.jfree.report.flow.FlowControlOperation;
  34: import org.jfree.xmlns.parser.AbstractXmlReadHandler;
  35: import org.jfree.xmlns.parser.ParseException;
  36: import org.xml.sax.Attributes;
  37: import org.xml.sax.SAXException;
  38: 
  39: /**
  40:  * Creation-Date: 09.04.2006, 14:47:59
  41:  *
  42:  * @author Thomas Morgner
  43:  */
  44: public class FlowOperationReadHandler extends AbstractXmlReadHandler
  45: {
  46:   private FlowControlOperation operation;
  47: 
  48:   public FlowOperationReadHandler()
  49:   {
  50:   }
  51: 
  52:   /**
  53:    * Starts parsing.
  54:    *
  55:    * @param attrs the attributes.
  56:    * @throws SAXException if there is a parsing error.
  57:    */
  58:   protected void startParsing(final Attributes attrs) throws SAXException
  59:   {
  60:     final String value = attrs.getValue(getUri(), "operation");
  61:     if (value == null)
  62:     {
  63:       throw new ParseException("Required attribute 'operation' is missing.", getLocator());
  64:     }
  65:     final String valueTrimmed = value.trim();
  66:     if (FlowControlOperation.ADVANCE.toString().equals(valueTrimmed))
  67:     {
  68:       operation = FlowControlOperation.ADVANCE;
  69:     }
  70:     else if (FlowControlOperation.COMMIT.toString().equals(valueTrimmed))
  71:     {
  72:       operation = FlowControlOperation.COMMIT;
  73:     }
  74:     else if (FlowControlOperation.DONE.toString().equals(valueTrimmed))
  75:     {
  76:       operation = FlowControlOperation.DONE;
  77:     }
  78:     else if (FlowControlOperation.MARK.toString().equals(valueTrimmed))
  79:     {
  80:       operation = FlowControlOperation.MARK;
  81:     }
  82:     else if (FlowControlOperation.NO_OP.toString().equals(valueTrimmed))
  83:     {
  84:       operation = FlowControlOperation.NO_OP;
  85:     }
  86:     else if (FlowControlOperation.RECALL.toString().equals(valueTrimmed))
  87:     {
  88:       operation = FlowControlOperation.RECALL;
  89:     }
  90:     else
  91:     {
  92:       throw new ParseException("attribute 'operation' has an invalid value.", getLocator());
  93:     }
  94:   }
  95: 
  96:   public FlowControlOperation getOperation()
  97:   {
  98:     return operation;
  99:   }
 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: }