xmlsecurity/tools/uno/SAXEventCollector.java

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  27
  28 package com.sun.star.xml.security.uno;
  29
  30 import javax.xml.parsers.DocumentBuilder;
  31 import javax.xml.parsers.DocumentBuilderFactory;
  32 import javax.xml.parsers.ParserConfigurationException;
  33
  34 import org.w3c.dom.Document;
  35 import org.w3c.dom.Element;
  36 import org.w3c.dom.Node;
  37 import org.w3c.dom.Text;
  38 import org.w3c.dom.ProcessingInstruction;
  39
  40 /* uno classes */
  41 import com.sun.star.xml.sax.XDocumentHandler;
  42 import com.sun.star.xml.sax.XAttributeList;
  43
  44 /*
  45  * this class is used to collect all received SAX events
  46  * into a DOM document.
  47  */
  48 class SAXEventCollector implements XDocumentHandler
  49 {
  50     /*
  51      * the document which keeps received SAX events
  52      */
  53     private Document m_document;
  54
  55     /*
  56      * the current Element to which the next received
  57      * SAX event will be added.
  58      */
  59     private Node m_currentElement;
  60
  61     /*
  62      * the TestTool which receives UI feedbacks
  63      */
  64     private TestTool m_testTool;
  65
  66     /*
  67      * whether displays information on console.
  68      */
  69     private boolean m_systemDisplay;
  70
  71     SAXEventCollector(TestTool testTool)
  72     {
  73         this(testTool, false);
  74     }
  75
  76     SAXEventCollector(TestTool testTool, boolean sysDis)
  77     {
  78         m_systemDisplay = sysDis;
  79         m_testTool = testTool;
  80
  81         DocumentBuilderFactory factory =
  82             DocumentBuilderFactory.newInstance();
  83
  84         try
  85         {
  86             DocumentBuilder builder = factory.newDocumentBuilder();
  87             m_document = builder.newDocument();
  88
  89             m_currentElement = m_document;
  90         }
  91         catch (ParserConfigurationException pce) {
  92             pce.printStackTrace();
  93         }
  94     }
  95
  96     protected Document getDocument()
  97     {
  98         return m_document;
  99     }
 100
 101     protected Node getCurrentElement()
 102     {
 103         return m_currentElement;
 104     }
 105
 106         /*
 107          * XDocumentHandler
 108          */
 109     public void  startDocument ()
 110     {
 111     }
 112
 113     public void endDocument()
 114     {
 115     }
 116
 117     public void startElement (String str, com.sun.star.xml.sax.XAttributeList xattribs)
 118     {
 119         Element newElement = m_document.createElement(str);
 120
 121         if (xattribs !=null)
 122         {
 123             int length = xattribs.getLength();
 124             for (short i=0; i<length; ++i)
 125             {
 126                 newElement.setAttribute(
 127                     xattribs.getNameByIndex(i),
 128                     xattribs.getValueByIndex(i));
 129             }
 130         }
 131
 132         if (m_systemDisplay)
 133         {
 134             System.out.println("startElement:"+m_currentElement.toString());
 135         }
 136
 137         m_currentElement.appendChild(newElement);
 138         m_currentElement = newElement;
 139
 140         if (m_testTool != null)
 141         {
 142             m_testTool.updatesUIs();
 143         }
 144     }
 145
 146     public void endElement(String str)
 147     {
 148         if (m_systemDisplay)
 149         {
 150             System.out.println("endElement:"+str+" "+m_currentElement.toString());
 151         }
 152
 153             m_currentElement = m_currentElement.getParentNode();
 154         if (m_systemDisplay)
 155         {
 156             System.out.println("----> "+m_currentElement.toString());
 157         }
 158
 159         if (m_testTool != null)
 160         {
 161             m_testTool.updatesUIs();
 162         }
 163     }
 164
 165     public void characters(String str)
 166     {
 167             Text newText = m_document.createTextNode(str);
 168             m_currentElement.appendChild(newText);
 169         if (m_testTool != null)
 170         {
 171             m_testTool.updatesUIs();
 172         }
 173     }
 174
 175     public void ignorableWhitespace(String str)
 176     {
 177     }
 178
 179     public void processingInstruction(String aTarget, String aData)
 180     {
 181         ProcessingInstruction newPI
 182             = m_document.createProcessingInstruction(aTarget, aData);
 183         m_currentElement.appendChild(newPI);
 184         if (m_testTool != null)
 185         {
 186             m_testTool.updatesUIs();
 187         }
 188     }
 189
 190     public void setDocumentLocator (com.sun.star.xml.sax.XLocator xLocator )
 191         throws com.sun.star.xml.sax.SAXException
 192     {
 193     }
 194 }
 195