org.apache.jcp.xml.dsig.internal.dom
Class DOMTransform

java.lang.Object
  org.apache.jcp.xml.dsig.internal.dom.BaseStructure
      org.apache.jcp.xml.dsig.internal.dom.DOMTransform

All Implemented Interfaces:

AlgorithmMethod, Transform, XMLStructure

Direct Known Subclasses:

DOMCanonicalizationMethod

public class DOMTransform
extends BaseStructure
implements Transform

DOM-based abstract implementation of Transform.

Author:

Sean Mullan

Field Summary

protected TransformService

spi

Fields inherited from interface javax.xml.crypto.dsig.Transform

BASE64, ENVELOPED, XPATH, XPATH2, XSLT

Constructor Summary

DOMTransform(Element transElem, XMLCryptoContext context, Provider provider)
Creates a DOMTransform from an element.

DOMTransform(TransformService spi)
Creates a DOMTransform.

Method Summary

boolean	equals(Object o)
String	getAlgorithm()
AlgorithmParameterSpec	getParameterSpec()
int	hashCode()
void	marshal(XmlWriter xwriter, String dsPrefix, XMLCryptoContext context) This method marshals any algorithm-specific parameters.
Data	transform(Data data, XMLCryptoContext xc) Transforms the specified data using the underlying transform algorithm.
Data	transform(Data data, XMLCryptoContext xc, OutputStream os) Transforms the specified data using the underlying transform algorithm.

Methods inherited from class org.apache.jcp.xml.dsig.internal.dom.BaseStructure

isFeatureSupported, textOfNode

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.xml.crypto.XMLStructure

isFeatureSupported

Field Detail

spi

protected TransformService spi

Constructor Detail

DOMTransform

public DOMTransform(TransformService spi)

Creates a DOMTransform.

Parameters:

spi - the TransformService

DOMTransform

public DOMTransform(Element transElem,
                    XMLCryptoContext context,
                    Provider provider)
             throws MarshalException

Creates a DOMTransform from an element. It unmarshals any algorithm-specific input parameters.

Parameters:

transElem - a Transform element

Throws:

MarshalException

Method Detail

getParameterSpec

public final AlgorithmParameterSpec getParameterSpec()

Specified by:

getParameterSpec in interface AlgorithmMethod

Specified by:

getParameterSpec in interface Transform

getAlgorithm

public final String getAlgorithm()

Specified by:

getAlgorithm in interface AlgorithmMethod

marshal

public void marshal(XmlWriter xwriter,
                    String dsPrefix,
                    XMLCryptoContext context)
             throws MarshalException

This method marshals any algorithm-specific parameters.

Throws:

MarshalException

transform

public Data transform(Data data,
                      XMLCryptoContext xc)
               throws TransformException

Transforms the specified data using the underlying transform algorithm.

Specified by:

transform in interface Transform

Parameters:

data - the data to be transformed

xc - the XMLCryptoContext containing additional context (may be null if not applicable)

Returns:

the transformed data

Throws:

NullPointerException - if data is null

XMLSignatureException - if an unexpected error occurs while executing the transform

TransformException

transform

public Data transform(Data data,
                      XMLCryptoContext xc,
                      OutputStream os)
               throws TransformException

Transforms the specified data using the underlying transform algorithm.

Specified by:

transform in interface Transform

Parameters:

data - the data to be transformed

xc - the XMLCryptoContext containing additional context (may be null if not applicable)

os - the OutputStream that should be used to write the transformed data to

Returns:

the transformed data

Throws:

NullPointerException - if data is null

XMLSignatureException - if an unexpected error occurs while executing the transform

TransformException

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object