org.red5.io.utils
Class Stax2DomBuilder

java.lang.Object
  org.red5.io.utils.Stax2DomBuilder

public class Stax2DomBuilder
extends Object

Builds a DOM Document using a XMLStreamReader.

Version:

$Revision: 1.00 $, $Date: 2004/12/11 00:00:00 $

Author:

Tatu Saloranta

Field Summary

protected boolean	mCfgIgnoreWs Whether ignorable white space should be ignored, ie not added in the resulting JDOM tree.
protected String	mLastLocalName
protected String	mLastPrefix
protected String	mLastQName
protected boolean	mNsAware

Constructor Summary

Stax2DomBuilder()
Default constructor.

Method Summary

Document	build(XMLStreamReader r) This method will create a Document instance using the default JAXP mechanism and populate using the given StAX stream reader.
void	build(XMLStreamReader r, Document doc) This method will populate given Document using the given StAX stream reader instance.
Document	build(XMLStreamReader r, DocumentBuilder docbuilder)
protected void	buildTree(XMLStreamReader r, Document doc) This method takes a XMLStreamReader and builds up a JDOM tree.
protected void	checkReaderSettings(XMLStreamReader r)
protected String	getQualified(String prefix, String localName)
void	setIgnoreWhitespace(boolean ignoreWS) Method used to change whether the build methods will add ignorable (element) white space in the DOM tree or not.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

mCfgIgnoreWs

protected boolean mCfgIgnoreWs

Whether ignorable white space should be ignored, ie not added in the resulting JDOM tree. If true, it will be ignored; if false, it will be added in the tree. Default value if false.

mNsAware

protected boolean mNsAware

mLastPrefix

protected String mLastPrefix

mLastLocalName

protected String mLastLocalName

mLastQName

protected String mLastQName

Constructor Detail

Stax2DomBuilder

public Stax2DomBuilder()

Default constructor.

Method Detail

setIgnoreWhitespace

public void setIgnoreWhitespace(boolean ignoreWS)

Method used to change whether the build methods will add ignorable (element) white space in the DOM tree or not.

Whether all-whitespace text segment is ignorable white space or not is based on DTD read in, as per XML specifications (white space is only significant in mixed content or pure text elements).

Parameters:

ignoreWS - true to ignore whitespace; false otherwise.

build

public Document build(XMLStreamReader r)
               throws ParserConfigurationException,
                      XMLStreamException

This method will create a Document instance using the default JAXP mechanism and populate using the given StAX stream reader.

Parameters:

r - Stream reader from which input is read.

Returns:

Document - DOM document object.

Throws:

ParserConfigurationException - if parse is not configured

XMLStreamException - If the reader threw such exception (to indicate a parsing or I/O problem)

build

public Document build(XMLStreamReader r,
                      DocumentBuilder docbuilder)
               throws XMLStreamException

Throws:

XMLStreamException

build

public void build(XMLStreamReader r,
                  Document doc)
           throws XMLStreamException

This method will populate given Document using the given StAX stream reader instance.

Parameters:

r - Stream reader from which input is read.

doc - Document - DOM document object.

Throws:

XMLStreamException - If the reader threw such exception (to indicate a parsing or I/O problem)

buildTree

protected void buildTree(XMLStreamReader r,
                         Document doc)
                  throws XMLStreamException

This method takes a XMLStreamReader and builds up a JDOM tree. Recursion has been eliminated by using nodes' parent/child relationship; this improves performance somewhat (classic recursion-by-iteration-and-explicit stack transformation)

Parameters:

r - Stream reader to use for reading the document from which to build the tree

doc - JDOM Document being built.

Throws:

XMLStreamException - for fun

getQualified

protected String getQualified(String prefix,
                              String localName)

checkReaderSettings

protected void checkReaderSettings(XMLStreamReader r)
                            throws XMLStreamException

Throws:

XMLStreamException