PentahoChartURLTagFragmentGenerator


1   /*
2    * Copyright 2006 Pentaho Corporation.  All rights reserved. 
3    * This software was developed by Pentaho Corporation and is provided under the terms 
4    * of the Mozilla Public License, Version 1.1, or any later version. You may not use 
5    * this file except in compliance with the license. If you need a copy of the license, 
6    * please go to http://www.mozilla.org/MPL/MPL-1.1.txt. The Original Code is the Pentaho 
7    * BI Platform.  The Initial Developer is Pentaho Corporation.
8    *
9    * Software distributed under the Mozilla Public License is distributed on an "AS IS" 
10   * basis, WITHOUT WARRANTY OF ANY KIND, either express or  implied. Please refer to 
11   * the license for the specific language governing your rights and limitations.
12   *
13   * Created Feb 13, 2006 
14   * @author wseyler
15   */
16  
17  package org.pentaho.plugin.jfreechart;
18  
19  import org.jfree.chart.imagemap.StandardURLTagFragmentGenerator;
20  import org.jfree.data.general.Dataset;
21  import org.pentaho.core.system.PentahoSystem;
22  import org.pentaho.core.util.TemplateUtil;
23  
24  public class PentahoChartURLTagFragmentGenerator extends StandardURLTagFragmentGenerator {
25      private static final String   SERIES_TAG = "series="; //$NON-NLS-1$
26      private static final String   CATEGORY_TAG = "category="; //$NON-NLS-1$
27      
28      String   urlFragment;
29      Dataset dataset;
30      String   parameterName;
31      String   outerParameterName;
32  
33      public PentahoChartURLTagFragmentGenerator(String   urlFragment, Dataset dataset, String   parameterName, String   outerParameterName) {
34          super();
35          
36          this.urlFragment = urlFragment;
37          this.dataset = dataset;
38          this.parameterName = parameterName;
39          this.outerParameterName = outerParameterName;
40      }
41  
42      public PentahoChartURLTagFragmentGenerator(String   urlTemplate, Dataset dataDefinition, String   paramName) {
43          this(urlTemplate, dataDefinition, paramName, ""); //$NON-NLS-1$
44      }
45  
46      public String   generateURLFragment(String   urlText) {
47          if (urlFragment != null) {
48              String   urlTemplate = " HREF=\"" + PentahoSystem.getApplicationContext().getBaseUrl() + urlFragment + "\""; //$NON-NLS-1$ //$NON-NLS-2$
49  
50              int startIdx = urlText.indexOf(CATEGORY_TAG) + CATEGORY_TAG.length();
51              int endIdx = urlText.indexOf('&', startIdx) != -1 ? urlText.indexOf('&', startIdx) : urlText.length();
52              String   value = urlText.substring(startIdx, endIdx).trim();
53              urlTemplate = TemplateUtil.applyTemplate(urlTemplate, parameterName, value);
54  
55              if (dataset instanceof CategoryDatasetChartDefinition){                
56                  startIdx = urlText.indexOf(SERIES_TAG) + SERIES_TAG.length();
57                  endIdx = urlText.indexOf('&', startIdx) != -1 ? urlText.indexOf('&', startIdx) : urlText.length();
58                  value = urlText.substring(startIdx, endIdx).trim();
59                  urlTemplate = TemplateUtil.applyTemplate(urlTemplate, outerParameterName, value);
60              }         
61              urlTemplate = urlTemplate + " target=\"pentaho-popup\""; //$NON-NLS-1$
62  
63              return urlTemplate;
64          } else {
65              return super.generateURLFragment(urlText);
66          }
67      }
68  }
69
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