Examples of org.xml.sax.ContentHandler

org.xml.sax.ContentHandler
axproject.org'>http://www.saxproject.org for further information.
This is the main interface that most SAX applications implement: if the application needs to be informed of basic parsing events, it implements this interface and registers an instance with the SAX parser using the {@link org.xml.sax.XMLReader#setContentHandler setContentHandler} method. The parser uses the instance to report basic document-related events like the start and end of elements and character data.

The order of events in this interface is very important, and mirrors the order of information in the document itself. For example, all of an element's content (character data, processing instructions, and/or subelements) will appear, in order, between the startElement event and the corresponding endElement event.

This interface is similar to the now-deprecated SAX 1.0 DocumentHandler interface, but it adds support for Namespaces and for reporting skipped entities (in non-validating XML processors).

Implementors should note that there is also a ContentHandler class in the java.net package; that means that it's probably a bad idea to do
```
import java.net.*; import org.xml.sax.*; 
```
In fact, "import ...*" is usually a sign of sloppy programming anyway, so the user should consider this a feature rather than a bug.
@since SAX 2.0 @author David Megginson @version 2.0.1+ (sax2r3pre1) @see org.xml.sax.XMLReader @see org.xml.sax.DTDHandler @see org.xml.sax.ErrorHandler

        // configuring outHandlerFactory
        // ///////////////////////////////////////////////////////


        EntryElement entryElement = getEntryElement(zos);


        ContentHandler outDocHandler = null;
        switch (outRepresentation) {
            case BYTECODE:
                outDocHandler = new OutputSlicingHandler(new ASMContentHandlerFactory(zos),
                        entryElement,
                        false);
                break;


            case MULTI_XML:
                outDocHandler = new OutputSlicingHandler(new SAXWriterFactory(osw,
                        true),
                        entryElement,
                        true);
                break;


            case SINGLE_XML:
                ZipEntry outputEntry = new ZipEntry(SINGLE_XML_NAME);
                zos.putNextEntry(outputEntry);
                outDocHandler = new SAXWriter(osw, false);
                break;


        }


        // configuring inputDocHandlerFactory
        // /////////////////////////////////////////////////
        ContentHandler inDocHandler;
        if (templates == null) {
            inDocHandler = outDocHandler;
        } else {
            inDocHandler = new InputSlicingHandler("class",
                    outDocHandler,
                    new TransformerHandlerFactory(saxtf,
                            templates,
                            outDocHandler));
        }
        ContentHandlerFactory inDocHandlerFactory = new SubdocumentHandlerFactory(inDocHandler);


        if (inDocHandler != null && inRepresentation != SINGLE_XML) {
            inDocHandler.startDocument();
            inDocHandler.startElement("",
                    "classes",
                    "classes",
                    new AttributesImpl());
        }


        int i = 0;
        ZipEntry ze;
        while ((ze = zis.getNextEntry()) != null) {
            update(ze.getName(), n++);
            if (isClassEntry(ze)) {
                processEntry(zis, ze, inDocHandlerFactory);
            } else {
                OutputStream os = entryElement.openEntry(getName(ze));
                copyEntry(zis, os);
                entryElement.closeEntry();
            }


            i++;
        }


        if (inDocHandler != null && inRepresentation != SINGLE_XML) {
            inDocHandler.endElement("", "classes", "classes");
            inDocHandler.endDocument();
        }


        if (outRepresentation == SINGLE_XML) {
            zos.closeEntry();
        }

View Full Code Here

    private void processEntry(
        final ZipInputStream zis,
        final ZipEntry ze,
        final ContentHandlerFactory handlerFactory)
    {
        ContentHandler handler = handlerFactory.createContentHandler();
        try {


            // if (CODE2ASM.equals(command)) { // read bytecode and process it
            // // with TraceClassVisitor
            // ClassReader cr = new ClassReader(readEntry(zis, ze));

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   * @throws IOException IOException
   * @throws SAXException SAXException
   */
  public final void parse(InputSource input) throws IOException, SAXException {


    ContentHandler ch = getContentHandler();
    if (ch == null) {
      throw
        new SAXException("AbstractXMLReader: No content handler registered");
    }

View Full Code Here

           java.io.IOException,
           javax.xml.transform.TransformerException
  {
    String fileName = getFilename(context, elem);
    Object flObject = m_formatterListeners.get(fileName);
    ContentHandler formatter;
    boolean inTable = false;
    if(null == flObject)
    {
      String mkdirsExpr 
        = ((ElemExtensionCall)elem).getAttribute ("mkdirs", 
                                                  context.getContextNode(), 
                                                  context.getTransformer());
      boolean mkdirs = (mkdirsExpr != null)
                       ? (mkdirsExpr.equals("true") || mkdirsExpr.equals("yes")) : true;


      // Whether to append to existing files or not, <jpvdm@iafrica.com>
      String appendExpr = elem.getAttribute("append", context.getContextNode(), context.getTransformer());
    boolean append = (appendExpr != null)
                       ? (appendExpr.equals("true") || appendExpr.equals("yes")) : DEFAULT_APPEND_WRITE;


      formatter = makeFormatterListener(context, elem, fileName, true, mkdirs, append);
    }
    else
    {
      inTable = true;
      formatter = (ContentHandler)flObject;
    }
    
    TransformerImpl transf = context.getTransformer();
    
    transf.executeChildTemplates(elem,
                                 context.getContextNode(),
                                 context.getMode(), formatter);
    
    if(!inTable)
    {
      OutputStream ostream = (OutputStream)m_outputStreams.get(fileName);
      if(null != ostream)
      {
        try
        {
          formatter.endDocument();
        }
        catch(org.xml.sax.SAXException se)
        {
          throw new TransformerException(se);
        }

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  {
    String fileName = getFilename(context, elem);
    Object formatterObj = m_formatterListeners.get(fileName);
    if(null != formatterObj)
    {
      ContentHandler fl = (ContentHandler)formatterObj;
      try
      {
        fl.endDocument();
      }
      catch(org.xml.sax.SAXException se)
      {
        throw new TransformerException(se);
      }

View Full Code Here

    //  the equivalent instead of getAbsolutePath()
    FileOutputStream ostream = new FileOutputStream(file.getPath(), append);
    
    try
    {
      ContentHandler flistener 
        = transformer.createResultContentHandler(new StreamResult(ostream), format);
      try
      {
        flistener.startDocument();
      }
      catch(org.xml.sax.SAXException se)
      {
        throw new TransformerException(se);
      }

View Full Code Here

                "select", new XPath(m_selectExpression),
                new org.apache.xpath.objects.XNodeSet(sourceNodes));
      }


      final ResultTreeHandler rth = transformer.getResultTreeHandler();
      ContentHandler chandler = rth.getContentHandler();
      final StylesheetRoot sroot = transformer.getStylesheet();
      final TemplateList tl = sroot.getTemplateListComposed();
      final boolean quiet = transformer.getQuietConflictWarnings();
      
      // Should be able to get this from the iterator but there must be a bug.

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   * @throws org.xml.sax.SAXException
   */
  protected void sendStartPrefixMappings() throws org.xml.sax.SAXException
  {
    Enumeration prefixes = m_nsSupport.getDeclaredPrefixes();
    ContentHandler handler = m_contentHandler;
    while (prefixes.hasMoreElements())
    {
      String prefix = (String) prefixes.nextElement();
      handler.startPrefixMapping(prefix, m_nsSupport.getURI(prefix));
    }
  }

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   * @throws org.xml.sax.SAXException */
  protected void startAndAddPrefixMappings() throws org.xml.sax.SAXException
  {


    Enumeration prefixes = m_nsSupport.getDeclaredPrefixes();
    ContentHandler handler = m_contentHandler;


    while (prefixes.hasMoreElements())
    {
      String prefix = (String) prefixes.nextElement();
      String uri=m_nsSupport.getURI(prefix);
      
      // Send event
      handler.startPrefixMapping(prefix, uri);


      // Set attribute
      boolean isDefault = (prefix.length() == 0);
      String name;

View Full Code Here

   */
  protected void sendEndPrefixMappings() throws org.xml.sax.SAXException
  {


    Enumeration prefixes = m_nsSupport.getDeclaredPrefixes();
    ContentHandler handler = m_contentHandler;


    while (prefixes.hasMoreElements())
    {
      String prefix = (String) prefixes.nextElement();


      handler.endPrefixMapping(prefix);
    }
  }

View Full Code Here

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