com.day.cq.rewriter.xml
Class XSLTProcessorImpl

java.lang.Object
  com.day.cq.rewriter.xml.XSLTProcessorImpl

All Implemented Interfaces:

URIResolver

public class XSLTProcessorImpl
extends Object
implements URIResolver

Adaptation of Excalibur's XSLTProcessor implementation for OSGi.

Nested Class Summary

static class	XSLTProcessorImpl.MyTransformerHandlerAndValidity Subclass to allow for instanciation, as for some unknown reason the constructor is protected....
static class	XSLTProcessorImpl.TransformerHandlerAndValidity

Field Summary

protected boolean	checkIncludes Check included stylesheets
protected SAXTransformerFactory	factory The trax TransformerFactory this component uses
protected Map<String,List<Object[]>>	includesMap Map of pairs of System ID's / validities of the included stylesheets
protected boolean	incrementalProcessing Is incremental processing turned on? (default for Xalan: no)
protected SourceResolver	resolver The source resolver
protected JaxpSAXParser	saxParser

Constructor Summary

XSLTProcessorImpl(SourceResolver resolver)

Method Summary

TransformerHandler	getTransformerHandler(Source stylesheet) Return a TransformerHandler for a given stylesheet Source.
Source	resolve(String href, String base) Called by the processor when it encounters an xsl:include, xsl:import, or document() function.
void	setCheckIncludes(boolean checkIncludes)
void	setIncrementalProcessing(boolean incrementalProcessing)
void	transform(Source source, Source stylesheet, Map<String,Object> params, Result result) Applies an XSLT stylesheet to an XML document.

Methods inherited from class java.lang.Object

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

Field Detail

factory

protected SAXTransformerFactory factory

The trax TransformerFactory this component uses

incrementalProcessing

protected boolean incrementalProcessing

Is incremental processing turned on? (default for Xalan: no)

resolver

protected SourceResolver resolver

The source resolver

checkIncludes

protected boolean checkIncludes

Check included stylesheets

includesMap

protected Map<String,List<Object[]>> includesMap

Map of pairs of System ID's / validities of the included stylesheets

saxParser

protected JaxpSAXParser saxParser

Constructor Detail

XSLTProcessorImpl

public XSLTProcessorImpl(SourceResolver resolver)

Method Detail

setIncrementalProcessing

public void setIncrementalProcessing(boolean incrementalProcessing)

setCheckIncludes

public void setCheckIncludes(boolean checkIncludes)

getTransformerHandler

public TransformerHandler getTransformerHandler(Source stylesheet)
                                         throws XSLTProcessorException

Return a TransformerHandler for a given stylesheet Source. This can be used in a pipeline to handle the transformation of a stream of SAX events.

This method caches the Templates object with meta information (modification time and list of included stylesheets) and performs a reparsing only if this changes.

Parameters:

stylesheet - a Source value < * @return a TransformerHandler value

Throws:

XSLTProcessorException - if an error occurs

transform

public void transform(Source source,
                      Source stylesheet,
                      Map<String,Object> params,
                      Result result)
               throws XSLTProcessorException

Applies an XSLT stylesheet to an XML document. The source and stylesheet documents are specified as Source objects. The result of the transformation is placed in Result, which should be properly initialized before invoking this method. Any additional parameters passed in params will become arguments to the stylesheet.

Parameters:

source - a Source value

stylesheet - a Source value

params - a Map

result - a Result value

Throws:

XSLTProcessorException - if an error occurs

resolve

public Source resolve(String href,
                      String base)
               throws TransformerException

Called by the processor when it encounters an xsl:include, xsl:import, or document() function.

Specified by:

resolve in interface URIResolver

Parameters:

href - An href attribute, which may be relative or absolute.

base - The base URI in effect when the href attribute was encountered.

Returns:

A Source object, or null if the href cannot be resolved, and the processor should try to resolve the URI itself.

Throws:

TransformerException - if an error occurs when trying to resolve the URI.