org.apache.xml.security.c14n.implementations

Class CanonicalizerBase

java.lang.Object

org.apache.xml.security.c14n.CanonicalizerSpi

org.apache.xml.security.c14n.implementations.CanonicalizerBase

Direct Known Subclasses:

Canonicalizer20010315, Canonicalizer20010315Excl, CanonicalizerPhysical

public abstract class CanonicalizerBase
extends CanonicalizerSpi

Abstract base class for canonicalization algorithms. Please note that these implementations are NOT thread safe - please see the following JIRA for more information: https://issues.apache.org/jira/browse/SANTUARIO-463

Field Summary

Fields

Modifier and Type	Field and Description
protected static AttrCompare	COMPARE
protected static int	NODE_AFTER_DOCUMENT_ELEMENT
protected static int	NODE_BEFORE_DOCUMENT_ELEMENT
protected static int	NODE_NOT_BEFORE_OR_AFTER_DOCUMENT_ELEMENT
static String	XML
static String	XML_LANG_URI
static String	XMLNS
static String	XMLNS_URI

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CanonicalizerBase(boolean includeComments) Constructor CanonicalizerBase

Method Summary

Modifier and Type	Method and Description
void	engineCanonicalize(XMLSignatureInput input, OutputStream writer, boolean secureValidation) Canonicalizes a Subtree node.
protected void	engineCanonicalizeSubTree(Node rootNode, Node excludeNode, OutputStream writer) Canonicalizes a Subtree node.
void	engineCanonicalizeSubTree(Node rootNode, OutputStream writer) Method engineCanonicalizeSubTree C14n a node tree.
void	engineCanonicalizeXPathNodeSet(Set<Node> xpathNodeSet, OutputStream writer) Method engineCanonicalizeXPathNodeSet C14n a nodeset
protected Attr	getNullNode(Document ownerDocument)
protected void	handleParent(Element e, NameSpaceSymbTable ns)
protected boolean	isVisible(Node currentNode)
protected int	isVisibleDO(Node currentNode, int level)
protected int	isVisibleInt(Node currentNode)
protected static void	outputAttrToWriter(String name, String value, OutputStream writer, Map<String,byte[]> cache) Outputs an Attribute to the internal Writer.
protected void	outputCommentToWriter(Comment currentComment, OutputStream writer, int position) Method outputCommentToWriter
protected void	outputPItoWriter(ProcessingInstruction currentPI, OutputStream writer, int position) Outputs a PI to the internal Writer.

Methods inherited from class org.apache.xml.security.c14n.CanonicalizerSpi

engineCanonicalize, engineCanonicalizeSubTree, engineCanonicalizeSubTree, engineCanonicalizeXPathNodeSet, engineGetURI

Methods inherited from class java.lang.Object

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

Field Detail

XML

public static final String XML

See Also:

Constant Field Values

XMLNS

public static final String XMLNS

See Also:

Constant Field Values

XMLNS_URI

public static final String XMLNS_URI

See Also:

Constant Field Values

XML_LANG_URI

public static final String XML_LANG_URI

See Also:

Constant Field Values

COMPARE

protected static final AttrCompare COMPARE

NODE_BEFORE_DOCUMENT_ELEMENT

protected static final int NODE_BEFORE_DOCUMENT_ELEMENT

See Also:

Constant Field Values

NODE_NOT_BEFORE_OR_AFTER_DOCUMENT_ELEMENT

protected static final int NODE_NOT_BEFORE_OR_AFTER_DOCUMENT_ELEMENT

See Also:

Constant Field Values

NODE_AFTER_DOCUMENT_ELEMENT

protected static final int NODE_AFTER_DOCUMENT_ELEMENT

See Also:

Constant Field Values

Constructor Detail

CanonicalizerBase

protected CanonicalizerBase(boolean includeComments)

Constructor CanonicalizerBase

Parameters:

includeComments -

Method Detail

engineCanonicalizeSubTree

public void engineCanonicalizeSubTree(Node rootNode,
                                      OutputStream writer)
                               throws CanonicalizationException

Method engineCanonicalizeSubTree C14n a node tree.

Specified by:

engineCanonicalizeSubTree in class CanonicalizerSpi

Parameters:

rootNode -

writer - OutputStream to write the canonicalization result

Throws:

CanonicalizationException

engineCanonicalizeXPathNodeSet

public void engineCanonicalizeXPathNodeSet(Set<Node> xpathNodeSet,
                                           OutputStream writer)
                                    throws CanonicalizationException

Method engineCanonicalizeXPathNodeSet C14n a nodeset

Specified by:

engineCanonicalizeXPathNodeSet in class CanonicalizerSpi

Parameters:

xpathNodeSet -

writer - OutputStream to write the canonicalization result

Throws:

CanonicalizationException

engineCanonicalize

public void engineCanonicalize(XMLSignatureInput input,
                               OutputStream writer,
                               boolean secureValidation)
                        throws CanonicalizationException

Canonicalizes a Subtree node.

Parameters:

input - the root of the subtree to canicalize

writer - OutputStream to write the canonicalization result

secureValidation - Whether secure validation is enabled

Throws:

CanonicalizationException

engineCanonicalizeSubTree

protected void engineCanonicalizeSubTree(Node rootNode,
                                         Node excludeNode,
                                         OutputStream writer)
                                  throws CanonicalizationException

Canonicalizes a Subtree node.

Parameters:

rootNode - the root of the subtree to canonicalize

excludeNode - a node to be excluded from the canonicalize operation

writer - OutputStream to write the canonicalization result

Throws:

CanonicalizationException

isVisibleDO

protected int isVisibleDO(Node currentNode,
                          int level)

isVisibleInt

protected int isVisibleInt(Node currentNode)

isVisible

protected boolean isVisible(Node currentNode)

handleParent

protected void handleParent(Element e,
                            NameSpaceSymbTable ns)

outputAttrToWriter

protected static final void outputAttrToWriter(String name,
                                               String value,
                                               OutputStream writer,
                                               Map<String,byte[]> cache)
                                        throws IOException

Outputs an Attribute to the internal Writer. The string value of the node is modified by replacing

• all ampersands with &
• all open angle brackets with <
• all quotation mark characters with "
• and the whitespace characters #x9, #xA, and #xD, with character references. The character references are written in uppercase hexadecimal with no leading zeroes (for example, #xD is represented by the character reference 
)

Parameters:

name -

value -

writer -

Throws:

IOException

outputPItoWriter

protected void outputPItoWriter(ProcessingInstruction currentPI,
                                OutputStream writer,
                                int position)
                         throws IOException

Outputs a PI to the internal Writer.

Parameters:

currentPI -

writer - where to write the things

Throws:

IOException

outputCommentToWriter

protected void outputCommentToWriter(Comment currentComment,
                                     OutputStream writer,
                                     int position)
                              throws IOException

Method outputCommentToWriter

Parameters:

currentComment -

writer - writer where to write the things

Throws:

IOException

getNullNode

protected Attr getNullNode(Document ownerDocument)