xmlsecurity/tools/uno/SAXEventCollector.java

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  30
  31 package com.sun.star.xml.security.uno;
  32
  33 import javax.xml.parsers.DocumentBuilder;
  34 import javax.xml.parsers.DocumentBuilderFactory;
  35 import javax.xml.parsers.ParserConfigurationException;
  36
  37 import org.w3c.dom.Document;
  38 import org.w3c.dom.Element;
  39 import org.w3c.dom.Node;
  40 import org.w3c.dom.Text;
  41 import org.w3c.dom.ProcessingInstruction;
  42
  43 /* uno classes */
  44 import com.sun.star.xml.sax.XDocumentHandler;
  45 import com.sun.star.xml.sax.XAttributeList;
  46
  47 /*
  48  * this class is used to collect all received SAX events
  49  * into a DOM document.
  50  */
  51 class SAXEventCollector implements XDocumentHandler
  52 {
  53     /*
  54      * the document which keeps received SAX events
  55      */
  56     private Document m_document;
  57
  58     /*
  59      * the current Element to which the next received
  60      * SAX event will be added.
  61      */
  62     private Node m_currentElement;
  63
  64     /*
  65      * the TestTool which receives UI feedbacks
  66      */
  67     private TestTool m_testTool;
  68
  69     /*
  70      * whether displays information on console.
  71      */
  72     private boolean m_systemDisplay;
  73
  74     SAXEventCollector(TestTool testTool)
  75     {
  76         this(testTool, false);
  77     }
  78
  79     SAXEventCollector(TestTool testTool, boolean sysDis)
  80     {
  81         m_systemDisplay = sysDis;
  82         m_testTool = testTool;
  83
  84         DocumentBuilderFactory factory =
  85             DocumentBuilderFactory.newInstance();
  86
  87         try
  88         {
  89             DocumentBuilder builder = factory.newDocumentBuilder();
  90             m_document = builder.newDocument();
  91
  92             m_currentElement = m_document;
  93         }
  94         catch (ParserConfigurationException pce) {
  95             pce.printStackTrace();
  96         }
  97     }
  98
  99     protected Document getDocument()
 100     {
 101         return m_document;
 102     }
 103
 104     protected Node getCurrentElement()
 105     {
 106         return m_currentElement;
 107     }
 108
 109         /*
 110          * XDocumentHandler
 111          */
 112     public void  startDocument ()
 113     {
 114     }
 115
 116     public void endDocument()
 117     {
 118     }
 119
 120     public void startElement (String str, com.sun.star.xml.sax.XAttributeList xattribs)
 121     {
 122         Element newElement = m_document.createElement(str);
 123
 124         if (xattribs !=null)
 125         {
 126             int length = xattribs.getLength();
 127             for (short i=0; i<length; ++i)
 128             {
 129                 newElement.setAttribute(
 130                     xattribs.getNameByIndex(i),
 131                     xattribs.getValueByIndex(i));
 132             }
 133         }
 134
 135         if (m_systemDisplay)
 136         {
 137             System.out.println("startElement:"+m_currentElement.toString());
 138         }
 139
 140         m_currentElement.appendChild(newElement);
 141         m_currentElement = newElement;
 142
 143         if (m_testTool != null)
 144         {
 145             m_testTool.updatesUIs();
 146         }
 147     }
 148
 149     public void endElement(String str)
 150     {
 151         if (m_systemDisplay)
 152         {
 153             System.out.println("endElement:"+str+" "+m_currentElement.toString());
 154         }
 155
 156             m_currentElement = m_currentElement.getParentNode();
 157         if (m_systemDisplay)
 158         {
 159             System.out.println("----> "+m_currentElement.toString());
 160         }
 161
 162         if (m_testTool != null)
 163         {
 164             m_testTool.updatesUIs();
 165         }
 166     }
 167
 168     public void characters(String str)
 169     {
 170             Text newText = m_document.createTextNode(str);
 171             m_currentElement.appendChild(newText);
 172         if (m_testTool != null)
 173         {
 174             m_testTool.updatesUIs();
 175         }
 176     }
 177
 178     public void ignorableWhitespace(String str)
 179     {
 180     }
 181
 182     public void processingInstruction(String aTarget, String aData)
 183     {
 184         ProcessingInstruction newPI
 185             = m_document.createProcessingInstruction(aTarget, aData);
 186         m_currentElement.appendChild(newPI);
 187         if (m_testTool != null)
 188         {
 189             m_testTool.updatesUIs();
 190         }
 191     }
 192
 193     public void setDocumentLocator (com.sun.star.xml.sax.XLocator xLocator )
 194         throws com.sun.star.xml.sax.SAXException
 195     {
 196     }
 197 }
 198