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27 package com.sun.star.report.pentaho.parser.rpt;
28 
29 import com.sun.star.report.pentaho.OfficeNamespaces;
30 import com.sun.star.report.pentaho.model.ObjectOleElement;
31 import com.sun.star.report.pentaho.parser.ElementReadHandler;
32 
33 import org.jfree.report.structure.Element;
34 
35 import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;
36 
37 import org.xml.sax.Attributes;
38 import org.xml.sax.SAXException;
39 
40 /**
41  *
42  * @author Ocke Janssen
43  */
44 public class MasterDetailReadHandler extends ElementReadHandler
45 {
46 
47     private final ObjectOleElement element;
48     private final boolean parseMasterDetail;
49 
50     public MasterDetailReadHandler(final ObjectOleElement element)
51     {
52         this.element = element;
53         parseMasterDetail = false;
54     }
55 
56     public MasterDetailReadHandler(final ObjectOleElement element, final boolean parseMasterDetail)
57     {
58         this.element = element;
59         this.parseMasterDetail = parseMasterDetail;
60     }
61 
62     /**
63      * Starts parsing.
64      *
65      * @param attrs the attributes.
66      * @throws org.xml.sax.SAXException if there is a parsing error.
67      */
68     protected void startParsing(final Attributes attrs) throws SAXException
69     {
70         super.startParsing(attrs);
71         if (parseMasterDetail)
72         {
73             final String master = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "master");
74             if (master != null && master.length() > 0)
75             {
76                 final String detail = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "detail");
77                 element.addMasterDetailFields(master, detail);
78             }
79         }
80     }
81 
82     /**
83      * Returns the handler for a child element.
84      *
85      * @param tagName the tag name.
86      * @param atts    the attributes.
87      * @return the handler or null, if the tagname is invalid.
88      * @throws org.xml.sax.SAXException if there is a parsing error.
89      */
90     protected XmlReadHandler getHandlerForChild(final String uri,
91             final String tagName,
92             final Attributes atts)
93             throws SAXException
94     {
95         if (OfficeNamespaces.OOREPORT_NS.equals(uri) && "master-detail-field".equals(tagName))
96         {
97             // expect a report control. The control will modifiy the current
98             // element (as we do not separate the elements that strictly ..)
99             return new MasterDetailReadHandler(element, true);
100         }
101 
102         return null;
103     }
104 
105     public Element getElement()
106     {
107         return element;
108     }
109 }
110