http://xml.apache.org/xalan-j/: Serializer to write out XML, HTML etc. as a stream of characters from an input DOM or from input SAX events. (The Apache Software Foundation) 
/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the  "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 * $Id: DOMBuilder.java 1225373 2011-12-28 22:59:38Z mrglavas $
 */
package org.apache.xml.utils;

import java.util.Stack;
import java.util.Vector;

import org.apache.xml.res.XMLErrorResources;
import org.apache.xml.res.XMLMessages;

import org.w3c.dom.Document;
import org.w3c.dom.DocumentFragment;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.Text;
import org.w3c.dom.CDATASection;

import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.Locator;
import org.xml.sax.ext.LexicalHandler;

This class takes SAX events (in addition to some extra events
that SAX doesn't handle yet) and adds the result to a document
or document fragment.

@xsl.usagegeneral
/**
 * This class takes SAX events (in addition to some extra events
 * that SAX doesn't handle yet) and adds the result to a document
 * or document fragment.
 * @xsl.usage general
 */
public class DOMBuilder
        implements ContentHandler, LexicalHandler
{

  
Root document          
/** Root document          */
  public Document m_doc;

  
Current node           
/** Current node           */
  protected Node m_currentNode = null;
  
  
The root node          
/** The root node          */
  protected Node m_root = null;
  
  
The next sibling node  
/** The next sibling node  */
  protected Node m_nextSibling = null;

  
First node of document fragment or null if not a DocumentFragment     
/** First node of document fragment or null if not a DocumentFragment     */
  public DocumentFragment m_docFrag = null;

  
Vector of element nodes          
/** Vector of element nodes          */
  protected Stack m_elemStack = new Stack();
  
  
Namespace support 
/** Namespace support */
  protected Vector m_prefixMappings = new Vector();
  
  
DOMBuilder instance constructor... it will add the DOM nodes
to the document fragment.

Params:
  • doc – Root document
  • node – Current node
/**
   * DOMBuilder instance constructor... it will add the DOM nodes
   * to the document fragment.
   *
   * @param doc Root document
   * @param node Current node
   */
  public DOMBuilder(Document doc, Node node)
  {
    m_doc = doc;
    m_currentNode = m_root = node;
    
    if (node instanceof Element)
      m_elemStack.push(node);
  }

  
DOMBuilder instance constructor... it will add the DOM nodes
to the document fragment.

Params:
  • doc – Root document
  • docFrag – Document fragment
/**
   * DOMBuilder instance constructor... it will add the DOM nodes
   * to the document fragment.
   *
   * @param doc Root document
   * @param docFrag Document fragment
   */
  public DOMBuilder(Document doc, DocumentFragment docFrag)
  {
    m_doc = doc;
    m_docFrag = docFrag;
  }

  
DOMBuilder instance constructor... it will add the DOM nodes
to the document.

Params:
  • doc – Root document
/**
   * DOMBuilder instance constructor... it will add the DOM nodes
   * to the document.
   *
   * @param doc Root document
   */
  public DOMBuilder(Document doc)
  {
    m_doc = doc;
  }

  
Get the root document or DocumentFragment of the DOM being created.

Returns:The root document or document fragment if not null
/**
   * Get the root document or DocumentFragment of the DOM being created.
   *
   * @return The root document or document fragment if not null
   */
  public Node getRootDocument()
  {
    return (null != m_docFrag) ? (Node) m_docFrag : (Node) m_doc;
  }
  
  
Get the root node of the DOM tree.

/**
   * Get the root node of the DOM tree.
   */
  public Node getRootNode()
  {
    return m_root;
  }
  
  
Get the node currently being processed.

Returns:the current node being processed
/**
   * Get the node currently being processed.
   *
   * @return the current node being processed
   */
  public Node getCurrentNode()
  {
    return m_currentNode;
  }
  
  
Set the next sibling node, which is where the result nodes 
should be inserted before.

Params:
  • nextSibling – the next sibling node.
/**
   * Set the next sibling node, which is where the result nodes 
   * should be inserted before.
   * 
   * @param nextSibling the next sibling node.
   */
  public void setNextSibling(Node nextSibling)
  {
    m_nextSibling = nextSibling;
  }
  
  
Return the next sibling node.

Returns:the next sibling node.
/**
   * Return the next sibling node.
   * 
   * @return the next sibling node.
   */
  public Node getNextSibling()
  {
    return m_nextSibling;
  }

  
Return null since there is no Writer for this class.

Returns:null
/**
   * Return null since there is no Writer for this class.
   *
   * @return null
   */
  public java.io.Writer getWriter()
  {
    return null;
  }

  
Append a node to the current container.

Params:
  • newNode – New node to append
/**
   * Append a node to the current container.
   *
   * @param newNode New node to append
   */
  protected void append(Node newNode) throws org.xml.sax.SAXException
  {

    Node currentNode = m_currentNode;

    if (null != currentNode)
    {
      if (currentNode == m_root && m_nextSibling != null)
        currentNode.insertBefore(newNode, m_nextSibling);
      else
        currentNode.appendChild(newNode);

      // System.out.println(newNode.getNodeName());
    }
    else if (null != m_docFrag)
    {
      if (m_nextSibling != null)
        m_docFrag.insertBefore(newNode, m_nextSibling);
      else
        m_docFrag.appendChild(newNode);
    }
    else
    {
      boolean ok = true;
      short type = newNode.getNodeType();

      if (type == Node.TEXT_NODE)
      {
        String data = newNode.getNodeValue();

        if ((null != data) && (data.trim().length() > 0))
        {
          throw new org.xml.sax.SAXException(
            XMLMessages.createXMLMessage(
              XMLErrorResources.ER_CANT_OUTPUT_TEXT_BEFORE_DOC, null));  //"Warning: can't output text before document element!  Ignoring...");
        }

        ok = false;
      }
      else if (type == Node.ELEMENT_NODE)
      {
        if (m_doc.getDocumentElement() != null)
        {
          ok = false;
          
          throw new org.xml.sax.SAXException(
            XMLMessages.createXMLMessage(
              XMLErrorResources.ER_CANT_HAVE_MORE_THAN_ONE_ROOT, null));  //"Can't have more than one root on a DOM!");
        }
      }

      if (ok)
      {
        if (m_nextSibling != null)
          m_doc.insertBefore(newNode, m_nextSibling);
        else
          m_doc.appendChild(newNode);
      }
    }
  }

  
Receive an object for locating the origin of SAX document events.

SAX parsers are strongly encouraged (though not absolutely
required) to supply a locator: if it does so, it must supply
the locator to the application by invoking this method before
invoking any of the other methods in the ContentHandler
interface.


The locator allows the application to determine the end
position of any document-related event, even if the parser is
not reporting an error.  Typically, the application will
use this information for reporting its own errors (such as
character content that does not match an application's
business rules).  The information returned by the locator
is probably not sufficient for use with a search engine.


Note that the locator will return correct information only
during the invocation of the events in this interface.  The
application should not attempt to use it at any other time.


Params:
  • locator – An object that can return the location of
               any SAX document event.
See Also:
/**
   * Receive an object for locating the origin of SAX document events.
   *
   * <p>SAX parsers are strongly encouraged (though not absolutely
   * required) to supply a locator: if it does so, it must supply
   * the locator to the application by invoking this method before
   * invoking any of the other methods in the ContentHandler
   * interface.</p>
   *
   * <p>The locator allows the application to determine the end
   * position of any document-related event, even if the parser is
   * not reporting an error.  Typically, the application will
   * use this information for reporting its own errors (such as
   * character content that does not match an application's
   * business rules).  The information returned by the locator
   * is probably not sufficient for use with a search engine.</p>
   *
   * <p>Note that the locator will return correct information only
   * during the invocation of the events in this interface.  The
   * application should not attempt to use it at any other time.</p>
   *
   * @param locator An object that can return the location of
   *                any SAX document event.
   * @see org.xml.sax.Locator
   */
  public void setDocumentLocator(Locator locator)
  {

    // No action for the moment.
  }

  
Receive notification of the beginning of a document.

The SAX parser will invoke this method only once, before any
other methods in this interface or in DTDHandler (except for
setDocumentLocator).


/**
   * Receive notification of the beginning of a document.
   *
   * <p>The SAX parser will invoke this method only once, before any
   * other methods in this interface or in DTDHandler (except for
   * setDocumentLocator).</p>
   */
  public void startDocument() throws org.xml.sax.SAXException
  {

    // No action for the moment.
  }

  
Receive notification of the end of a document.

The SAX parser will invoke this method only once, and it will
be the last method invoked during the parse.  The parser shall
not invoke this method until it has either abandoned parsing
(because of an unrecoverable error) or reached the end of
input.


/**
   * Receive notification of the end of a document.
   *
   * <p>The SAX parser will invoke this method only once, and it will
   * be the last method invoked during the parse.  The parser shall
   * not invoke this method until it has either abandoned parsing
   * (because of an unrecoverable error) or reached the end of
   * input.</p>
   */
  public void endDocument() throws org.xml.sax.SAXException
  {

    // No action for the moment.
  }

  
Receive notification of the beginning of an element.

The Parser will invoke this method at the beginning of every
element in the XML document; there will be a corresponding
endElement() event for every startElement() event (even when the
element is empty). All of the element's content will be
reported, in order, before the corresponding endElement()
event.


If the element name has a namespace prefix, the prefix will
still be attached.  Note that the attribute list provided will
contain only attributes with explicit values (specified or
defaulted): #IMPLIED attributes will be omitted.


Params:
  • ns – The namespace of the node
  • localName – The local part of the qualified name
  • name – The element name.
  • atts – The attributes attached to the element, if any.
See Also:
/**
   * Receive notification of the beginning of an element.
   *
   * <p>The Parser will invoke this method at the beginning of every
   * element in the XML document; there will be a corresponding
   * endElement() event for every startElement() event (even when the
   * element is empty). All of the element's content will be
   * reported, in order, before the corresponding endElement()
   * event.</p>
   *
   * <p>If the element name has a namespace prefix, the prefix will
   * still be attached.  Note that the attribute list provided will
   * contain only attributes with explicit values (specified or
   * defaulted): #IMPLIED attributes will be omitted.</p>
   *
   *
   * @param ns The namespace of the node
   * @param localName The local part of the qualified name
   * @param name The element name.
   * @param atts The attributes attached to the element, if any.
   * @see #endElement
   * @see org.xml.sax.Attributes
   */
  public void startElement(
          String ns, String localName, String name, Attributes atts)
            throws org.xml.sax.SAXException
  {

    Element elem;

	// Note that the namespace-aware call must be used to correctly
	// construct a Level 2 DOM, even for non-namespaced nodes.
    if ((null == ns) || (ns.length() == 0))
      elem = m_doc.createElementNS(null,name);
    else
      elem = m_doc.createElementNS(ns, name);

    append(elem);

    try
    {
      int nAtts = atts.getLength();

      if (0 != nAtts)
      {
        for (int i = 0; i < nAtts; i++)
        {

          //System.out.println("type " + atts.getType(i) + " name " + atts.getLocalName(i) );
          // First handle a possible ID attribute
          if (atts.getType(i).equalsIgnoreCase("ID"))
            setIDAttribute(atts.getValue(i), elem);

          String attrNS = atts.getURI(i);

          if("".equals(attrNS))
            attrNS = null; // DOM represents no-namespace as null

          // System.out.println("attrNS: "+attrNS+", localName: "+atts.getQName(i)
          //                   +", qname: "+atts.getQName(i)+", value: "+atts.getValue(i));
          // Crimson won't let us set an xmlns: attribute on the DOM.
          String attrQName = atts.getQName(i);

          // In SAX, xmlns[:] attributes have an empty namespace, while in DOM they 
          // should have the xmlns namespace
          if (attrQName.startsWith("xmlns:") || attrQName.equals("xmlns")) {
            attrNS = "http://www.w3.org/2000/xmlns/";
          }

          // ALWAYS use the DOM Level 2 call!
          elem.setAttributeNS(attrNS,attrQName, atts.getValue(i));
        }
      }
      
      /*
       * Adding namespace nodes to the DOM tree;
       */
      int nDecls = m_prefixMappings.size();
      
      String prefix, declURL;
      
      for (int i = 0; i < nDecls; i += 2)
      {
        prefix = (String) m_prefixMappings.elementAt(i);

        if (prefix == null)
          continue;

        declURL = (String) m_prefixMappings.elementAt(i + 1);

        elem.setAttributeNS("http://www.w3.org/2000/xmlns/", prefix, declURL);
      }
      
      m_prefixMappings.clear();
    
      // append(elem);

      m_elemStack.push(elem);

      m_currentNode = elem;

      // append(elem);
    }
    catch(java.lang.Exception de)
    {
      // de.printStackTrace();
      throw new org.xml.sax.SAXException(de);
    }

  }

  
Receive notification of the end of an element.

The SAX parser will invoke this method at the end of every
element in the XML document; there will be a corresponding
startElement() event for every endElement() event (even when the
element is empty).


If the element name has a namespace prefix, the prefix will
still be attached to the name.


Params:
  • ns – the namespace of the element
  • localName – The local part of the qualified name of the element
  • name – The element name
/**



   * Receive notification of the end of an element.
   *
   * <p>The SAX parser will invoke this method at the end of every
   * element in the XML document; there will be a corresponding
   * startElement() event for every endElement() event (even when the
   * element is empty).</p>
   *
   * <p>If the element name has a namespace prefix, the prefix will
   * still be attached to the name.</p>
   *
   *
   * @param ns the namespace of the element
   * @param localName The local part of the qualified name of the element
   * @param name The element name
   */
  public void endElement(String ns, String localName, String name)
          throws org.xml.sax.SAXException
  {
    m_elemStack.pop();
    m_currentNode = m_elemStack.isEmpty() ? null : (Node)m_elemStack.peek();
  }

  
Set an ID string to node association in the ID table.

Params:
  • id – The ID string.
  • elem – The associated ID.
/**
   * Set an ID string to node association in the ID table.
   *
   * @param id The ID string.
   * @param elem The associated ID.
   */
  public void setIDAttribute(String id, Element elem)
  {

    // Do nothing. This method is meant to be overiden.
  }

  
Receive notification of character data.

The Parser will call this method to report each chunk of
character data.  SAX parsers may return all contiguous character
data in a single chunk, or they may split it into several
chunks; however, all of the characters in any single event
must come from the same external entity, so that the Locator
provides useful information.


The application must not attempt to read from the array
outside of the specified range.


Note that some parsers will report whitespace using the
ignorableWhitespace() method rather than this one (validating
parsers must do so).


Params:
  • ch – The characters from the XML document.
  • start – The start position in the array.
  • length – The number of characters to read from the array.
See Also:
/**
   * Receive notification of character data.
   *
   * <p>The Parser will call this method to report each chunk of
   * character data.  SAX parsers may return all contiguous character
   * data in a single chunk, or they may split it into several
   * chunks; however, all of the characters in any single event
   * must come from the same external entity, so that the Locator
   * provides useful information.</p>
   *
   * <p>The application must not attempt to read from the array
   * outside of the specified range.</p>
   *
   * <p>Note that some parsers will report whitespace using the
   * ignorableWhitespace() method rather than this one (validating
   * parsers must do so).</p>
   *
   * @param ch The characters from the XML document.
   * @param start The start position in the array.
   * @param length The number of characters to read from the array.
   * @see #ignorableWhitespace
   * @see org.xml.sax.Locator
   */
  public void characters(char ch[], int start, int length) throws org.xml.sax.SAXException
  {
    if(isOutsideDocElem()
       && org.apache.xml.utils.XMLCharacterRecognizer.isWhiteSpace(ch, start, length))
      return;  // avoid DOM006 Hierarchy request error

    if (m_inCData)
    {
      cdata(ch, start, length);

      return;
    }

    String s = new String(ch, start, length);
    Node childNode;
    childNode =  m_currentNode != null ? m_currentNode.getLastChild(): null;
    if( childNode != null && childNode.getNodeType() == Node.TEXT_NODE ){
       ((Text)childNode).appendData(s);
    }
    else{
       Text text = m_doc.createTextNode(s);
       append(text);
    }
  }

  
If available, when the disable-output-escaping attribute is used,
output raw text without escaping.  A PI will be inserted in front
of the node with the name "lotusxsl-next-is-raw" and a value of
"formatter-to-dom".

Params:
  • ch – Array containing the characters
  • start – Index to start of characters in the array
  • length – Number of characters in the array
/**
   * If available, when the disable-output-escaping attribute is used,
   * output raw text without escaping.  A PI will be inserted in front
   * of the node with the name "lotusxsl-next-is-raw" and a value of
   * "formatter-to-dom".
   *
   * @param ch Array containing the characters
   * @param start Index to start of characters in the array
   * @param length Number of characters in the array
   */
  public void charactersRaw(char ch[], int start, int length)
          throws org.xml.sax.SAXException
  {
    if(isOutsideDocElem()
       && org.apache.xml.utils.XMLCharacterRecognizer.isWhiteSpace(ch, start, length))
      return;  // avoid DOM006 Hierarchy request error


    String s = new String(ch, start, length);

    append(m_doc.createProcessingInstruction("xslt-next-is-raw",
                                             "formatter-to-dom"));
    append(m_doc.createTextNode(s));
  }

  
Report the beginning of an entity.
The start and end of the document entity are not reported.
The start and end of the external DTD subset are reported
using the pseudo-name "[dtd]".  All other events must be
properly nested within start/end entity events.

Params:
  • name – The name of the entity.  If it is a parameter
       entity, the name will begin with '%'.
See Also:
/**
   * Report the beginning of an entity.
   *
   * The start and end of the document entity are not reported.
   * The start and end of the external DTD subset are reported
   * using the pseudo-name "[dtd]".  All other events must be
   * properly nested within start/end entity events.
   *
   * @param name The name of the entity.  If it is a parameter
   *        entity, the name will begin with '%'.
   * @see #endEntity
   * @see org.xml.sax.ext.DeclHandler#internalEntityDecl
   * @see org.xml.sax.ext.DeclHandler#externalEntityDecl
   */
  public void startEntity(String name) throws org.xml.sax.SAXException
  {

    // Almost certainly the wrong behavior...
    // entityReference(name);
  }

  
Report the end of an entity.

Params:
  • name – The name of the entity that is ending.
See Also:
/**
   * Report the end of an entity.
   *
   * @param name The name of the entity that is ending.
   * @see #startEntity
   */
  public void endEntity(String name) throws org.xml.sax.SAXException{}

  
Receive notivication of a entityReference.

Params:
  • name – name of the entity reference
/**
   * Receive notivication of a entityReference.
   *
   * @param name name of the entity reference
   */
  public void entityReference(String name) throws org.xml.sax.SAXException
  {
    append(m_doc.createEntityReference(name));
  }

  
Receive notification of ignorable whitespace in element content.

Validating Parsers must use this method to report each chunk
of ignorable whitespace (see the W3C XML 1.0 recommendation,
section 2.10): non-validating parsers may also use this method
if they are capable of parsing and using content models.


SAX parsers may return all contiguous whitespace in a single
chunk, or they may split it into several chunks; however, all of
the characters in any single event must come from the same
external entity, so that the Locator provides useful
information.


The application must not attempt to read from the array
outside of the specified range.


Params:
  • ch – The characters from the XML document.
  • start – The start position in the array.
  • length – The number of characters to read from the array.
See Also:
/**
   * Receive notification of ignorable whitespace in element content.
   *
   * <p>Validating Parsers must use this method to report each chunk
   * of ignorable whitespace (see the W3C XML 1.0 recommendation,
   * section 2.10): non-validating parsers may also use this method
   * if they are capable of parsing and using content models.</p>
   *
   * <p>SAX parsers may return all contiguous whitespace in a single
   * chunk, or they may split it into several chunks; however, all of
   * the characters in any single event must come from the same
   * external entity, so that the Locator provides useful
   * information.</p>
   *
   * <p>The application must not attempt to read from the array
   * outside of the specified range.</p>
   *
   * @param ch The characters from the XML document.
   * @param start The start position in the array.
   * @param length The number of characters to read from the array.
   * @see #characters
   */
  public void ignorableWhitespace(char ch[], int start, int length)
          throws org.xml.sax.SAXException
  {
    if(isOutsideDocElem())
      return;  // avoid DOM006 Hierarchy request error

    String s = new String(ch, start, length);

    append(m_doc.createTextNode(s));
  }

  
Tell if the current node is outside the document element.

Returns:true if the current node is outside the document element.
/**
   * Tell if the current node is outside the document element.
   *
   * @return true if the current node is outside the document element.
   */
   private boolean isOutsideDocElem()
   {
      return (null == m_docFrag) && m_elemStack.size() == 0 && (null == m_currentNode || m_currentNode.getNodeType() == Node.DOCUMENT_NODE);
   }

  
Receive notification of a processing instruction.

The Parser will invoke this method once for each processing
instruction found: note that processing instructions may occur
before or after the main document element.


A SAX parser should never report an XML declaration (XML 1.0,
section 2.8) or a text declaration (XML 1.0, section 4.3.1)
using this method.


Params:
  • target – The processing instruction target.
  • data – The processing instruction data, or null if
       none was supplied.
/**
   * Receive notification of a processing instruction.
   *
   * <p>The Parser will invoke this method once for each processing
   * instruction found: note that processing instructions may occur
   * before or after the main document element.</p>
   *
   * <p>A SAX parser should never report an XML declaration (XML 1.0,
   * section 2.8) or a text declaration (XML 1.0, section 4.3.1)
   * using this method.</p>
   *
   * @param target The processing instruction target.
   * @param data The processing instruction data, or null if
   *        none was supplied.
   */
  public void processingInstruction(String target, String data)
          throws org.xml.sax.SAXException
  {
    append(m_doc.createProcessingInstruction(target, data));
  }

  
Report an XML comment anywhere in the document.
This callback will be used for comments inside or outside the
document element, including comments in the external DTD
subset (if read).

Params:
  • ch – An array holding the characters in the comment.
  • start – The starting position in the array.
  • length – The number of characters to use from the array.
/**
   * Report an XML comment anywhere in the document.
   *
   * This callback will be used for comments inside or outside the
   * document element, including comments in the external DTD
   * subset (if read).
   *
   * @param ch An array holding the characters in the comment.
   * @param start The starting position in the array.
   * @param length The number of characters to use from the array.
   */
  public void comment(char ch[], int start, int length) throws org.xml.sax.SAXException
  {
    append(m_doc.createComment(new String(ch, start, length)));
  }

  
Flag indicating that we are processing a CData section          
/** Flag indicating that we are processing a CData section          */
  protected boolean m_inCData = false;

  
Report the start of a CDATA section.

See Also:
  • endCDATA
/**
   * Report the start of a CDATA section.
   *
   * @see #endCDATA
   */
  public void startCDATA() throws org.xml.sax.SAXException
  {
    m_inCData = true;
    append(m_doc.createCDATASection(""));
  }

  
Report the end of a CDATA section.

See Also:
  • startCDATA
/**
   * Report the end of a CDATA section.
   *
   * @see #startCDATA
   */
  public void endCDATA() throws org.xml.sax.SAXException
  {
    m_inCData = false;
  }

  
Receive notification of cdata.

The Parser will call this method to report each chunk of
character data.  SAX parsers may return all contiguous character
data in a single chunk, or they may split it into several
chunks; however, all of the characters in any single event
must come from the same external entity, so that the Locator
provides useful information.


The application must not attempt to read from the array
outside of the specified range.


Note that some parsers will report whitespace using the
ignorableWhitespace() method rather than this one (validating
parsers must do so).


Params:
  • ch – The characters from the XML document.
  • start – The start position in the array.
  • length – The number of characters to read from the array.
See Also:
/**
   * Receive notification of cdata.
   *
   * <p>The Parser will call this method to report each chunk of
   * character data.  SAX parsers may return all contiguous character
   * data in a single chunk, or they may split it into several
   * chunks; however, all of the characters in any single event
   * must come from the same external entity, so that the Locator
   * provides useful information.</p>
   *
   * <p>The application must not attempt to read from the array
   * outside of the specified range.</p>
   *
   * <p>Note that some parsers will report whitespace using the
   * ignorableWhitespace() method rather than this one (validating
   * parsers must do so).</p>
   *
   * @param ch The characters from the XML document.
   * @param start The start position in the array.
   * @param length The number of characters to read from the array.
   * @see #ignorableWhitespace
   * @see org.xml.sax.Locator
   */
  public void cdata(char ch[], int start, int length) throws org.xml.sax.SAXException
  {
    if(isOutsideDocElem()
       && org.apache.xml.utils.XMLCharacterRecognizer.isWhiteSpace(ch, start, length))
      return;  // avoid DOM006 Hierarchy request error

    String s = new String(ch, start, length);

    CDATASection section  =(CDATASection) m_currentNode.getLastChild();
    section.appendData(s);
  }

  
Report the start of DTD declarations, if any.
Any declarations are assumed to be in the internal subset
unless otherwise indicated.

Params:
  • name – The document type name.
  • publicId – The declared public identifier for the
       external DTD subset, or null if none was declared.
  • systemId – The declared system identifier for the
       external DTD subset, or null if none was declared.
See Also:
/**
   * Report the start of DTD declarations, if any.
   *
   * Any declarations are assumed to be in the internal subset
   * unless otherwise indicated.
   *
   * @param name The document type name.
   * @param publicId The declared public identifier for the
   *        external DTD subset, or null if none was declared.
   * @param systemId The declared system identifier for the
   *        external DTD subset, or null if none was declared.
   * @see #endDTD
   * @see #startEntity
   */
  public void startDTD(String name, String publicId, String systemId)
          throws org.xml.sax.SAXException
  {

    // Do nothing for now.
  }

  
Report the end of DTD declarations.

See Also:
  • startDTD
/**
   * Report the end of DTD declarations.
   *
   * @see #startDTD
   */
  public void endDTD() throws org.xml.sax.SAXException
  {

    // Do nothing for now.
  }

  
Begin the scope of a prefix-URI Namespace mapping.

The information from this event is not necessary for
normal Namespace processing: the SAX XML reader will
automatically replace prefixes for element and attribute
names when the http://xml.org/sax/features/namespaces
feature is true (the default).


There are cases, however, when applications need to
use prefixes in character data or in attribute values,
where they cannot safely be expanded automatically; the
start/endPrefixMapping event supplies the information
to the application to expand prefixes in those contexts
itself, if necessary.


Note that start/endPrefixMapping events are not
guaranteed to be properly nested relative to each-other:
all startPrefixMapping events will occur before the
corresponding startElement event, and all endPrefixMapping
events will occur after the corresponding endElement event,
but their order is not guaranteed.


Params:
  • prefix – The Namespace prefix being declared.
  • uri – The Namespace URI the prefix is mapped to.
See Also:
/**
   * Begin the scope of a prefix-URI Namespace mapping.
   *
   * <p>The information from this event is not necessary for
   * normal Namespace processing: the SAX XML reader will
   * automatically replace prefixes for element and attribute
   * names when the http://xml.org/sax/features/namespaces
   * feature is true (the default).</p>
   *
   * <p>There are cases, however, when applications need to
   * use prefixes in character data or in attribute values,
   * where they cannot safely be expanded automatically; the
   * start/endPrefixMapping event supplies the information
   * to the application to expand prefixes in those contexts
   * itself, if necessary.</p>
   *
   * <p>Note that start/endPrefixMapping events are not
   * guaranteed to be properly nested relative to each-other:
   * all startPrefixMapping events will occur before the
   * corresponding startElement event, and all endPrefixMapping
   * events will occur after the corresponding endElement event,
   * but their order is not guaranteed.</p>
   *
   * @param prefix The Namespace prefix being declared.
   * @param uri The Namespace URI the prefix is mapped to.
   * @see #endPrefixMapping
   * @see #startElement
   */
  public void startPrefixMapping(String prefix, String uri)
          throws org.xml.sax.SAXException
  {
	      if(null == prefix || prefix.length() == 0)
	        prefix = "xmlns";
	      else prefix = "xmlns:"+prefix;
	      m_prefixMappings.addElement(prefix);
	      m_prefixMappings.addElement(uri); 
  }

  
End the scope of a prefix-URI mapping.

See startPrefixMapping for details.  This event will
always occur after the corresponding endElement event,
but the order of endPrefixMapping events is not otherwise
guaranteed.


Params:
  • prefix – The prefix that was being mapping.
See Also:
/**
   * End the scope of a prefix-URI mapping.
   *
   * <p>See startPrefixMapping for details.  This event will
   * always occur after the corresponding endElement event,
   * but the order of endPrefixMapping events is not otherwise
   * guaranteed.</p>
   *
   * @param prefix The prefix that was being mapping.
   * @see #startPrefixMapping
   * @see #endElement
   */
  public void endPrefixMapping(String prefix) throws org.xml.sax.SAXException{}

  
Receive notification of a skipped entity.

The Parser will invoke this method once for each entity
skipped.  Non-validating processors may skip entities if they
have not seen the declarations (because, for example, the
entity was declared in an external DTD subset).  All processors
may skip external entities, depending on the values of the
http://xml.org/sax/features/external-general-entities and the
http://xml.org/sax/features/external-parameter-entities
properties.


Params:
  • name – The name of the skipped entity.  If it is a
       parameter entity, the name will begin with '%'.
/**
   * Receive notification of a skipped entity.
   *
   * <p>The Parser will invoke this method once for each entity
   * skipped.  Non-validating processors may skip entities if they
   * have not seen the declarations (because, for example, the
   * entity was declared in an external DTD subset).  All processors
   * may skip external entities, depending on the values of the
   * http://xml.org/sax/features/external-general-entities and the
   * http://xml.org/sax/features/external-parameter-entities
   * properties.</p>
   *
   * @param name The name of the skipped entity.  If it is a
   *        parameter entity, the name will begin with '%'.
   */
  public void skippedEntity(String name) throws org.xml.sax.SAXException{}
}