Package org.apache.xml.security.c14n

Class Canonicalizer

java.lang.Object

org.apache.xml.security.c14n.Canonicalizer

public class Canonicalizer
extends java.lang.Object

Author:

Christian Geuer-Pollmann

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	ALGO_ID_C14N_EXCL_OMIT_COMMENTS	The URL defined in XML-SEC Rec for exclusive c14n without comments.
static java.lang.String	ALGO_ID_C14N_EXCL_WITH_COMMENTS	The URL defined in XML-SEC Rec for exclusive c14n with comments.
static java.lang.String	ALGO_ID_C14N_OMIT_COMMENTS	The URL defined in XML-SEC Rec for inclusive c14n without comments.
static java.lang.String	ALGO_ID_C14N_WITH_COMMENTS	The URL defined in XML-SEC Rec for inclusive c14n with comments.
protected CanonicalizerSpi	canonicalizerSpi
static java.lang.String	ENCODING	The output encoding of canonicalized data
static java.lang.String	XPATH_C14N_WITH_COMMENTS_SINGLE_NODE	XPath Expresion for selecting every node and continuos comments joined in only one node

Method Summary

Modifier and Type	Method	Description
byte[]	canonicalize(byte[] inputBytes)	This method tries to canonicalize the given bytes.
byte[]	canonicalizeSubtree(org.w3c.dom.Node node)	Canonicalizes the subtree rooted by node.
byte[]	canonicalizeSubtree(org.w3c.dom.Node node, java.lang.String inclusiveNamespaces)	Canonicalizes the subtree rooted by node.
byte[]	canonicalizeXPathNodeSet(java.util.Set xpathNodeSet)	Canonicalizes an XPath node set.
byte[]	canonicalizeXPathNodeSet(java.util.Set xpathNodeSet, java.lang.String inclusiveNamespaces)	Canonicalizes an XPath node set.
byte[]	canonicalizeXPathNodeSet(org.w3c.dom.NodeList xpathNodeSet)	Canonicalizes an XPath node set.
byte[]	canonicalizeXPathNodeSet(org.w3c.dom.NodeList xpathNodeSet, java.lang.String inclusiveNamespaces)	Canonicalizes an XPath node set.
java.lang.String	getImplementingCanonicalizerClass()	Returns the name of the implementing CanonicalizerSpi class
boolean	getIncludeComments()	Method getIncludeComments
static Canonicalizer	getInstance(java.lang.String algorithmURI)	Method getInstance
java.lang.String	getURI()	Method getURI
static void	init()	Method init
void	notReset()	Set the canonicalizator behaviour to not reset.
static void	register(java.lang.String algorithmURI, java.lang.String implementingClass)	Method register
void	setWriter(java.io.OutputStream os)	Sets the writter where the cannocalization ends.

Methods inherited from class java.lang.Object

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

Field Detail

ENCODING

public static final java.lang.String ENCODING

The output encoding of canonicalized data

See Also:

Constant Field Values

XPATH_C14N_WITH_COMMENTS_SINGLE_NODE

public static final java.lang.String XPATH_C14N_WITH_COMMENTS_SINGLE_NODE

XPath Expresion for selecting every node and continuos comments joined in only one node

See Also:

Constant Field Values

ALGO_ID_C14N_OMIT_COMMENTS

public static final java.lang.String ALGO_ID_C14N_OMIT_COMMENTS

The URL defined in XML-SEC Rec for inclusive c14n without comments.

See Also:

Constant Field Values

ALGO_ID_C14N_WITH_COMMENTS

public static final java.lang.String ALGO_ID_C14N_WITH_COMMENTS

The URL defined in XML-SEC Rec for inclusive c14n with comments.

See Also:

Constant Field Values

ALGO_ID_C14N_EXCL_OMIT_COMMENTS

public static final java.lang.String ALGO_ID_C14N_EXCL_OMIT_COMMENTS

The URL defined in XML-SEC Rec for exclusive c14n without comments.

See Also:

Constant Field Values

ALGO_ID_C14N_EXCL_WITH_COMMENTS

public static final java.lang.String ALGO_ID_C14N_EXCL_WITH_COMMENTS

The URL defined in XML-SEC Rec for exclusive c14n with comments.

See Also:

Constant Field Values

canonicalizerSpi

protected CanonicalizerSpi canonicalizerSpi

Method Detail

init

public static void init()

Method init

getInstance

public static final Canonicalizer getInstance(java.lang.String algorithmURI)
                                       throws InvalidCanonicalizerException

Method getInstance

Parameters:

algorithmURI -

Returns:

a Conicicalizer instance ready for the job

Throws:

InvalidCanonicalizerException

register

public static void register(java.lang.String algorithmURI,
                            java.lang.String implementingClass)
                     throws AlgorithmAlreadyRegisteredException

Method register

Parameters:

algorithmURI -

implementingClass -

Throws:

AlgorithmAlreadyRegisteredException

getURI

public final java.lang.String getURI()

Method getURI

Returns:

the URI defined for this c14n instance.

getIncludeComments

public boolean getIncludeComments()

Method getIncludeComments

Returns:

true if the c14n respect the comments.

canonicalize

public byte[] canonicalize(byte[] inputBytes)
                    throws javax.xml.parsers.ParserConfigurationException,
                           java.io.IOException,
                           org.xml.sax.SAXException,
                           CanonicalizationException

This method tries to canonicalize the given bytes. It's possible to even canonicalize non-wellformed sequences if they are well-formed after being wrapped with a >a<...>/a<.

Parameters:

inputBytes -

Returns:

the result of the conicalization.

Throws:

CanonicalizationException

java.io.IOException

javax.xml.parsers.ParserConfigurationException

org.xml.sax.SAXException

canonicalizeSubtree

public byte[] canonicalizeSubtree(org.w3c.dom.Node node)
                           throws CanonicalizationException

Canonicalizes the subtree rooted by node.

Parameters:

node - The node to canicalize

Returns:

the result of the c14n.

Throws:

CanonicalizationException

canonicalizeSubtree

public byte[] canonicalizeSubtree(org.w3c.dom.Node node,
                                  java.lang.String inclusiveNamespaces)
                           throws CanonicalizationException

Canonicalizes the subtree rooted by node.

Parameters:

node -

inclusiveNamespaces -

Returns:

the result of the c14n.

Throws:

CanonicalizationException

canonicalizeXPathNodeSet

public byte[] canonicalizeXPathNodeSet(org.w3c.dom.NodeList xpathNodeSet)
                                throws CanonicalizationException

Canonicalizes an XPath node set. The xpathNodeSet is treated as a list of XPath nodes, not as a list of subtrees.

Parameters:

xpathNodeSet -

Returns:

the result of the c14n.

Throws:

CanonicalizationException

canonicalizeXPathNodeSet

public byte[] canonicalizeXPathNodeSet(org.w3c.dom.NodeList xpathNodeSet,
                                       java.lang.String inclusiveNamespaces)
                                throws CanonicalizationException

Canonicalizes an XPath node set. The xpathNodeSet is treated as a list of XPath nodes, not as a list of subtrees.

Parameters:

xpathNodeSet -

inclusiveNamespaces -

Returns:

the result of the c14n.

Throws:

CanonicalizationException

canonicalizeXPathNodeSet

public byte[] canonicalizeXPathNodeSet(java.util.Set xpathNodeSet)
                                throws CanonicalizationException

Canonicalizes an XPath node set.

Parameters:

xpathNodeSet -

Returns:

the result of the c14n.

Throws:

CanonicalizationException

canonicalizeXPathNodeSet

public byte[] canonicalizeXPathNodeSet(java.util.Set xpathNodeSet,
                                       java.lang.String inclusiveNamespaces)
                                throws CanonicalizationException

Canonicalizes an XPath node set.

Parameters:

xpathNodeSet -

inclusiveNamespaces -

Returns:

the result of the c14n.

Throws:

CanonicalizationException

setWriter

public void setWriter(java.io.OutputStream os)

Sets the writter where the cannocalization ends. ByteArrayOutputStream if none is setted.

Parameters:

os -

getImplementingCanonicalizerClass

public java.lang.String getImplementingCanonicalizerClass()

Returns the name of the implementing CanonicalizerSpi class

Returns:

the name of the implementing CanonicalizerSpi class

notReset

public void notReset()

Set the canonicalizator behaviour to not reset.