org.apache.ode.utils.xsl

Class XslTransformHandler

java.lang.Object

org.apache.ode.utils.xsl.XslTransformHandler

public class XslTransformHandler
extends java.lang.Object

Singleton wrapping the basic javax.xml.transform operations. The transformation is then delegated to a Transformer. Supports both XSL 1.0 and XSL 2.0 depending on the version attribute provided in the XSL stylesheet (see http://www.w3.org/TR/xslt20/#backwards - 3.8 Backwards-Compatible Processing).
The transform handler also implements a simple cache to avo??d multiple pre-compilation of the same XSL sheet.

Method Summary

Methods

Modifier and Type	Method and Description
void	cacheXSLSheet(javax.xml.namespace.QName processQName, java.net.URI uri, java.lang.String body, javax.xml.transform.URIResolver resolver) Parses the provided stylesheet and stores it in cache only if it's not there already.
void	clearXSLSheets(javax.xml.namespace.QName processQName)
static XslTransformHandler	getInstance() Singleton access.
void	parseXSLSheet(javax.xml.namespace.QName processQName, java.net.URI uri, java.lang.String body, javax.xml.transform.URIResolver resolver) Always parses the provided stylesheet and stores it in cache from its URI.
void	setErrorListener(javax.xml.transform.ErrorListener l)
void	setTransformerFactory(javax.xml.transform.TransformerFactory transformerFactory) Sets the transformer factory for initialization.
java.lang.Object	transform(javax.xml.namespace.QName processQName, java.net.URI uri, javax.xml.transform.Source source, java.util.Map<javax.xml.namespace.QName,java.lang.Object> parameters, javax.xml.transform.URIResolver resolver) Transforms a Source document to a result using the XSL stylesheet referenced by the provided URI.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static XslTransformHandler getInstance()

Singleton access.

Returns:

single XslTransformHandler instance.

setTransformerFactory

public void setTransformerFactory(javax.xml.transform.TransformerFactory transformerFactory)

Sets the transformer factory for initialization.

Parameters:

transformerFactory -

parseXSLSheet

public void parseXSLSheet(javax.xml.namespace.QName processQName,
                 java.net.URI uri,
                 java.lang.String body,
                 javax.xml.transform.URIResolver resolver)

Always parses the provided stylesheet and stores it in cache from its URI.

Parameters:

uri - referencing the stylesheet

body - of the XSL document

resolver - used to resolve includes and imports

cacheXSLSheet

public void cacheXSLSheet(javax.xml.namespace.QName processQName,
                 java.net.URI uri,
                 java.lang.String body,
                 javax.xml.transform.URIResolver resolver)

Parses the provided stylesheet and stores it in cache only if it's not there already.

Parameters:

uri - referencing the stylesheet

body - of the XSL document

resolver - used to resolve includes and imports

transform

public java.lang.Object transform(javax.xml.namespace.QName processQName,
                         java.net.URI uri,
                         javax.xml.transform.Source source,
                         java.util.Map<javax.xml.namespace.QName,java.lang.Object> parameters,
                         javax.xml.transform.URIResolver resolver)

Transforms a Source document to a result using the XSL stylesheet referenced by the provided URI. The stylesheet MUST have been parsed previously.

Parameters:

uri - referencing the stylesheet

source - XML document

parameters - passed to the stylesheet

resolver - used to resolve includes and imports

Returns:

result of the transformation (XSL, HTML or text depending of the output method specified in stylesheet.

setErrorListener

public void setErrorListener(javax.xml.transform.ErrorListener l)

clearXSLSheets

public void clearXSLSheets(javax.xml.namespace.QName processQName)