net.sourceforge.chaperon.cocoon
Class ParserTransformer

java.lang.Object
  net.sourceforge.chaperon.process.ParserProcessor
      net.sourceforge.chaperon.cocoon.ParserTransformer

All Implemented Interfaces:

org.apache.cocoon.caching.CacheableProcessingComponent, org.xml.sax.ContentHandler, org.apache.avalon.framework.activity.Disposable, org.xml.sax.ext.LexicalHandler, org.apache.avalon.framework.logger.LogEnabled, org.apache.avalon.framework.parameters.Parameterizable, org.apache.avalon.excalibur.pool.Poolable, org.apache.avalon.excalibur.pool.Recyclable, org.apache.avalon.framework.service.Serviceable, org.apache.cocoon.sitemap.SitemapModelComponent, org.apache.cocoon.transformation.Transformer, org.apache.excalibur.xml.sax.XMLConsumer, org.apache.cocoon.xml.XMLConsumer, org.apache.cocoon.xml.XMLPipe, org.apache.cocoon.xml.XMLProducer

public class ParserTransformer

extends ParserProcessor

implements org.apache.cocoon.transformation.Transformer, org.apache.avalon.framework.logger.LogEnabled, org.apache.avalon.framework.service.Serviceable, org.apache.avalon.framework.parameters.Parameterizable, org.apache.avalon.excalibur.pool.Recyclable, org.apache.avalon.framework.activity.Disposable, org.apache.cocoon.caching.CacheableProcessingComponent

This transfomer transforms lexical tokens in a XML file into a XML hirachy by using a grammar file.

Input:

 <lexemes xmlns="http://chaperon.sourceforge.net/schema/lexemes/1.0">
  <lexeme symbol="word" text="Text"/>
  <lexeme symbol="number" text="123"/>
  <lexeme symbol="word" text="bla"/>
 </lexemes>
 

were transform into the following output:

 <sentence xmlns="http://chaperon.sourceforge.net/schema/syntaxtree/1.0">
  <word>Text</word>
  <number>123</number>
  <word>bla</word>
 </sentence>
 

Version:

CVS $Id: ParserTransformer.java,v 1.6 2004/01/18 01:36:29 benedikta Exp $

Author:

Stephan Michels

Nested Class Summary

class

ParserTransformer.ParserAutomatonEntry This class represent a entry in a store to cache the parser automaton.

Field Summary

Fields inherited from class net.sourceforge.chaperon.process.ParserProcessor

ERROR, NS_OUTPUT, OUTPUT

Fields inherited from interface org.apache.cocoon.transformation.Transformer

ROLE

Constructor Summary

ParserTransformer()

Method Summary

void	dispose() The dispose operation is called at the end of a components lifecycle.
void	enableLogging(org.apache.avalon.framework.logger.Logger logger) Provide component with a logger.
java.io.Serializable	getKey() Generate the unique key.
org.apache.excalibur.source.SourceValidity	getValidity() Generate the validity object.
void	parameterize(org.apache.avalon.framework.parameters.Parameters parameters) Provide component with parameters.
void	recycle() Recycle this component.
void	service(org.apache.avalon.framework.service.ServiceManager manager) Pass the ServiceManager to the service.
void	setConsumer(org.apache.cocoon.xml.XMLConsumer consumer) Set the XMLConsumer that will receive XML data.
void	setup(org.apache.cocoon.environment.SourceResolver resolver, java.util.Map objectmodel, java.lang.String src, org.apache.avalon.framework.parameters.Parameters parameters) Set the SourceResolver, objectModel Map, the source and sitemap Parameters used to process the request.

Methods inherited from class net.sourceforge.chaperon.process.ParserProcessor

characters, comment, endCDATA, endDocument, endDTD, endElement, endEntity, endPrefixMapping, ignorableWhitespace, processingInstruction, setContentHandler, setDocumentLocator, setFailSafe, setFlatten, setLexicalHandler, setLocalizable, setLog, setParserAutomaton, skippedEntity, startCDATA, startDocument, startDTD, startElement, startEntity, startPrefixMapping

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.xml.sax.ContentHandler

characters, endDocument, endElement, endPrefixMapping, ignorableWhitespace, processingInstruction, setDocumentLocator, skippedEntity, startDocument, startElement, startPrefixMapping

Methods inherited from interface org.xml.sax.ext.LexicalHandler

comment, endCDATA, endDTD, endEntity, startCDATA, startDTD, startEntity

Constructor Detail

ParserTransformer

public ParserTransformer()

Method Detail

enableLogging

public void enableLogging(org.apache.avalon.framework.logger.Logger logger)

Provide component with a logger.

Specified by:

enableLogging in interface org.apache.avalon.framework.logger.LogEnabled

Parameters:

logger - the logger

service

public void service(org.apache.avalon.framework.service.ServiceManager manager)

Pass the ServiceManager to the service. The Serviceable implementation should use the specified ServiceManager to acquire the components it needs for execution.

Specified by:

service in interface org.apache.avalon.framework.service.Serviceable

Parameters:

manager - The ServiceManager which this Composable uses.

parameterize

public void parameterize(org.apache.avalon.framework.parameters.Parameters parameters)
                  throws org.apache.avalon.framework.parameters.ParameterException

Provide component with parameters.

Specified by:

parameterize in interface org.apache.avalon.framework.parameters.Parameterizable

Parameters:

parameters - the parameters

Throws:

org.apache.avalon.framework.parameters.ParameterException - if parameters are invalid

setConsumer

public void setConsumer(org.apache.cocoon.xml.XMLConsumer consumer)

Set the XMLConsumer that will receive XML data.

Specified by:

setConsumer in interface org.apache.cocoon.xml.XMLProducer

Parameters:

consumer -

setup

public void setup(org.apache.cocoon.environment.SourceResolver resolver,
                  java.util.Map objectmodel,
                  java.lang.String src,
                  org.apache.avalon.framework.parameters.Parameters parameters)
           throws org.apache.cocoon.ProcessingException,
                  org.xml.sax.SAXException,
                  java.io.IOException

Set the SourceResolver, objectModel Map, the source and sitemap Parameters used to process the request.

Specified by:

setup in interface org.apache.cocoon.sitemap.SitemapModelComponent

Parameters:

resolver - Source resolver

objectmodel - Object model

src - Source

parameters - Parameters

Throws:

java.io.IOException

org.apache.cocoon.ProcessingException

org.xml.sax.SAXException

getKey

public java.io.Serializable getKey()

Generate the unique key. This key must be unique inside the space of this component.

Specified by:

getKey in interface org.apache.cocoon.caching.CacheableProcessingComponent

Returns:

The generated key hashes the src

getValidity

public org.apache.excalibur.source.SourceValidity getValidity()

Generate the validity object.

Specified by:

getValidity in interface org.apache.cocoon.caching.CacheableProcessingComponent

Returns:

The generated validity object or null if the component is currently not cacheable.

recycle

public void recycle()

Recycle this component. All instance variables are set to null.

Specified by:

recycle in interface org.apache.avalon.excalibur.pool.Recyclable

dispose

public void dispose()

The dispose operation is called at the end of a components lifecycle.

Specified by:

dispose in interface org.apache.avalon.framework.activity.Disposable