Source for org.jfree.report.modules.misc.autotable.xml.AutoTableElementReadHandler

   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: AutoTableElementReadHandler.java 3525 2007-10-16 11:43:48Z tmorgner $
  27:  * ------------
  28:  * (C) Copyright 2000-2005, by Object Refinery Limited.
  29:  * (C) Copyright 2005-2007, by Pentaho Corporation.
  30:  */
  31: 
  32: package org.jfree.report.modules.misc.autotable.xml;
  33: 
  34: import java.util.ArrayList;
  35: 
  36: import org.jfree.report.modules.factories.report.flow.AbstractElementReadHandler;
  37: import org.jfree.report.modules.factories.report.base.NodeReadHandlerFactory;
  38: import org.jfree.report.modules.factories.report.base.NodeReadHandler;
  39: import org.jfree.report.modules.misc.autotable.AutoTableElement;
  40: import org.jfree.report.modules.misc.autotable.AutoTableModule;
  41: import org.jfree.report.structure.Element;
  42: import org.jfree.report.structure.Section;
  43: import org.jfree.xmlns.parser.XmlReadHandler;
  44: import org.xml.sax.Attributes;
  45: import org.xml.sax.SAXException;
  46: 
  47: /**
  48:  * Creation-Date: Dec 9, 2006, 5:47:25 PM
  49:  *
  50:  * @author Thomas Morgner
  51:  */
  52: public class AutoTableElementReadHandler extends AbstractElementReadHandler
  53: {
  54:   private AutoTableElement autoTableElement;
  55:   private ArrayList headerSections;
  56:   private ArrayList footerSections;
  57:   private ArrayList contentSections;
  58: 
  59:   public AutoTableElementReadHandler()
  60:   {
  61:     autoTableElement = new AutoTableElement();
  62:     headerSections = new ArrayList();
  63:     contentSections = new ArrayList();
  64:     footerSections = new ArrayList();
  65:   }
  66: 
  67:   protected Element getElement()
  68:   {
  69:     return autoTableElement;
  70:   }
  71: 
  72:   /**
  73:    * Returns the handler for a child element.
  74:    *
  75:    * @param tagName the tag name.
  76:    * @param atts    the attributes.
  77:    * @return the handler or null, if the tagname is invalid.
  78:    * @throws org.xml.sax.SAXException if there is a parsing error.
  79:    * @throws XmlReaderException       if there is a reader error.
  80:    */
  81:   protected XmlReadHandler getHandlerForChild(final String uri,
  82:                                               final String tagName,
  83:                                               final Attributes atts)
  84:       throws SAXException
  85:   {
  86:     if (AutoTableModule.AUTOTABLE_NAMESPACE.equals(uri) == false)
  87:     {
  88:       return super.getHandlerForChild(uri, tagName, atts);
  89:     }
  90: 
  91:     final NodeReadHandlerFactory factory = NodeReadHandlerFactory.getInstance();
  92:     final NodeReadHandler handler = (NodeReadHandler) factory.getHandler(uri, tagName);
  93:     if (handler == null)
  94:     {
  95:       return null;
  96:     }
  97: 
  98:     if ("auto-table-header".equals(tagName))
  99:     {
 100:       headerSections.add(handler);
 101:       return handler;
 102:     }
 103: 
 104:     if ("auto-table-footer".equals(tagName))
 105:     {
 106:       footerSections.add(handler);
 107:       return handler;
 108:     }
 109: 
 110:     if ("auto-table-cell".equals(tagName))
 111:     {
 112:       contentSections.add(handler);
 113:       return handler;
 114:     }
 115: 
 116:     return null;
 117:   }
 118: 
 119: 
 120:   /**
 121:    * Done parsing.
 122:    *
 123:    * @throws org.xml.sax.SAXException if there is a parsing error.
 124:    */
 125:   protected void doneParsing() throws SAXException
 126:   {
 127:     for (int i = 0; i < headerSections.size(); i++)
 128:     {
 129:       final NodeReadHandler handler = (NodeReadHandler) headerSections.get(i);
 130:       autoTableElement.addHeader((Section) handler.getNode());
 131:     }
 132: 
 133:     for (int i = 0; i < footerSections.size(); i++)
 134:     {
 135:       final NodeReadHandler handler = (NodeReadHandler) footerSections.get(i);
 136:       autoTableElement.addFooter((Section) handler.getNode());
 137:     }
 138: 
 139:     for (int i = 0; i < contentSections.size(); i++)
 140:     {
 141:       final NodeReadHandler handler = (NodeReadHandler) contentSections.get(i);
 142:       autoTableElement.addContent((Section) handler.getNode());
 143:     }
 144:   }
 145: }