iaik.ixsil.algorithms

Class TransformImplEnvelopedSignature

java.lang.Object

iaik.ixsil.algorithms.Algorithm

iaik.ixsil.algorithms.Transform

iaik.ixsil.algorithms.TransformImplEnvelopedSignature

public class TransformImplEnvelopedSignature
extends Transform

Provides an transform implementation of the Enveloped Signature Transform algorithm, as it has been specified in XML Signature, Enveloped Signature Transform.

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.lang.String	DEFAULT_ALGORITHM_URI_ The default algorithm URI for this algorithm implementation.
protected org.w3c.dom.Element	transformDOMElem_ The DOM element representation of this transform.
protected TransformImplXPath2	xPath2Transform_ The XPath Filter 2 transform implementation used by this class.

Fields inherited from class iaik.ixsil.algorithms.Transform

inputNodeSet_, inputOctetStream_, inputURI_

Fields inherited from class iaik.ixsil.algorithms.Algorithm

uri_

Constructor Summary

Constructors

Constructor and Description
TransformImplEnvelopedSignature() Default constructor, sets the default value for the algorithm URI to http://www.w3.org/2000/09/xmldsig#enveloped-signature.

Method Summary

Methods

Modifier and Type	Method and Description
void	setParameters(org.w3c.dom.Element transformElement) Sets the parameters for this Enveloped Signature transform implementation.
org.w3c.dom.Element	toElement(org.w3c.dom.Document signatureDOMDoc) Returns the DOM element representation of the transform.
java.lang.Object	transform() Computes the transform result for the enveloped signature transform.

Methods inherited from class iaik.ixsil.algorithms.Transform

distributeNSDeclarations, setInput, setInput, skipStylesheetElem, withdrawDistributedNSDeclarations

Methods inherited from class iaik.ixsil.algorithms.Algorithm

getURI, setURI

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_ALGORITHM_URI_

protected static final java.lang.String DEFAULT_ALGORITHM_URI_

The default algorithm URI for this algorithm implementation.

See Also:

Constant Field Values

xPath2Transform_

protected TransformImplXPath2 xPath2Transform_

The XPath Filter 2 transform implementation used by this class.

transformDOMElem_

protected org.w3c.dom.Element transformDOMElem_

The DOM element representation of this transform.

Constructor Detail

TransformImplEnvelopedSignature

public TransformImplEnvelopedSignature()

Default constructor, sets the default value for the algorithm URI to http://www.w3.org/2000/09/xmldsig#enveloped-signature.

Method Detail

setParameters

public void setParameters(org.w3c.dom.Element transformElement)

Sets the parameters for this Enveloped Signature transform implementation. Actually this transform has no parameters, but it must get knowlege of the DOM representing the XML signature (which can be evaluated from the specified transformElement).

Overrides:

setParameters in class Algorithm

Parameters:

transformElement - The DOM element representation of the transform, as it will be found by IXSIL in the XML signature.

toElement

public org.w3c.dom.Element toElement(org.w3c.dom.Document signatureDOMDoc)
                              throws AlgorithmException

Returns the DOM element representation of the transform. Used by IXSIL to incorporate the transform into the XML representation of the signature.

Specified by:

toElement in class Algorithm

Parameters:

signatureDOMDoc - The DOM document which should be used to create necessary DOM nodes.

Returns:

the DOM element representation of the transform.

Throws:

AlgorithmException - if computing the DOM element representation fails for any reason.

transform

public java.lang.Object transform()
                           throws AlgorithmException

Computes the transform result for the enveloped signature transform.

Specified by:

transform in class Transform

Returns:

the transform result as XPath node set.

Throws:

AlgorithmException - if the transform result cannot be computed for any reason.