com.echomine.jabber

Class JabberContentHandler

java.lang.Object

org.xml.sax.helpers.DefaultHandler

com.echomine.jabber.JabberContentHandler

All Implemented Interfaces:

org.xml.sax.ContentHandler, org.xml.sax.DTDHandler, org.xml.sax.EntityResolver, org.xml.sax.ErrorHandler

public class JabberContentHandler
extends org.xml.sax.helpers.DefaultHandler

The main content handler used by the protocol itself. It essentially acts as a delegator. When an element comes in, it will automatically look for the required parser that is able to parse the contents of the message and then pass along all the incoming callbacks to it.

Constructor Summary

Constructors

Constructor and Description
JabberContentHandler(JabberSession session, JabberMessageReceiver receiver, MessageRequestQueue queue, JabberMessageHandler msgHandler)

Method Summary

Methods

Modifier and Type	Method and Description
void	characters(char[] ch, int start, int length)
void	endDocument() This method only handled by the protocol itself and is never sent to the higher level
void	endElement(java.lang.String namespaceURI, java.lang.String localName, java.lang.String qName) ending the element essentially "resets" our delegation back to us
void	startDocument() This method is only handled by the protocol itself and is never sent to the higher level
void	startElement(java.lang.String namespaceURI, java.lang.String localName, java.lang.String qName, org.xml.sax.Attributes attr) check to see if there is a handler for this message.

Methods inherited from class org.xml.sax.helpers.DefaultHandler

endPrefixMapping, error, fatalError, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startPrefixMapping, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

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

Constructor Detail

JabberContentHandler

public JabberContentHandler(JabberSession session,
                    JabberMessageReceiver receiver,
                    MessageRequestQueue queue,
                    JabberMessageHandler msgHandler)

Method Detail

startDocument

public void startDocument()

This method is only handled by the protocol itself and is never sent to the higher level

Specified by:

startDocument in interface org.xml.sax.ContentHandler

Overrides:

startDocument in class org.xml.sax.helpers.DefaultHandler

endDocument

public void endDocument()

This method only handled by the protocol itself and is never sent to the higher level

Specified by:

endDocument in interface org.xml.sax.ContentHandler

Overrides:

endDocument in class org.xml.sax.helpers.DefaultHandler

startElement

public void startElement(java.lang.String namespaceURI,
                java.lang.String localName,
                java.lang.String qName,
                org.xml.sax.Attributes attr)

check to see if there is a handler for this message. If so, delegate the rest of the parsing to this element until the end of the element is reached. At that point, we are back to selecting and delegating.

Specified by:

startElement in interface org.xml.sax.ContentHandler

Overrides:

startElement in class org.xml.sax.helpers.DefaultHandler

endElement

public void endElement(java.lang.String namespaceURI,
              java.lang.String localName,
              java.lang.String qName)

ending the element essentially "resets" our delegation back to us

Specified by:

endElement in interface org.xml.sax.ContentHandler

Overrides:

endElement in class org.xml.sax.helpers.DefaultHandler

characters

public void characters(char[] ch,
              int start,
              int length)

Specified by:

characters in interface org.xml.sax.ContentHandler

Overrides:

characters in class org.xml.sax.helpers.DefaultHandler