iaik.xml.crypto.utils

Class URIDereferencerImpl

java.lang.Object

iaik.xml.crypto.utils.URIDereferencerImpl

All Implemented Interfaces:

URIDereferencer

public class URIDereferencerImpl
extends Object
implements URIDereferencer

An URIDereferencer implementation that supports dereferencing external URIs using the URLConnection and same-document URIs supporting XPointer expressions.

Constructor Summary

Constructors

Constructor and Description
URIDereferencerImpl() Creates a new instance of this URIDereferencerImpl.

Method Summary

Modifier and Type	Method and Description
Data	dereference(URIReference uriReference, XMLCryptoContext context) Dereferences the specified URIReference and returns the dereferenced data.
protected Data	dereferenceExternalURI(URI uri, XMLCryptoContext context) Dereferences an external URI.
protected Data	dereferenceInternalURI(URI uri, Node here, XMLCryptoContext context) Derefences an internal (same document or reference) URI.
static boolean	isSameDocumentFullXPointer(String uriString) This method checks if a URI fragment is a full XPointer.

Methods inherited from class java.lang.Object

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

Constructor Detail

URIDereferencerImpl

public URIDereferencerImpl()

Creates a new instance of this URIDereferencerImpl.

Method Detail

dereference

public Data dereference(URIReference uriReference,
                        XMLCryptoContext context)
                 throws URIReferenceException

Description copied from interface: javax.xml.crypto.URIDereferencer

Dereferences the specified URIReference and returns the dereferenced data.

Specified by:

dereference in interface URIDereferencer

Parameters:

uriReference - the URIReference

context - an XMLCryptoContext that may contain additional useful information for dereferencing the URI. This implementation should dereference the specified URIReference against the context's baseURI parameter, if specified.

Returns:

the dereferenced data

Throws:

URIReferenceException - if an exception occurs while dereferencing the specified uriReference

See Also:

URIDereferencer.dereference(javax.xml.crypto.URIReference, javax.xml.crypto.XMLCryptoContext)

dereferenceInternalURI

protected Data dereferenceInternalURI(URI uri,
                                      Node here,
                                      XMLCryptoContext context)
                               throws URIReferenceException

Derefences an internal (same document or reference) URI.

Parameters:

uri - The uri to be dereferenced.

here - The here node.

context - An XMLCryptoContext that may contain additional useful information for dereferencing the URI. This implementation should dereference the specified URIReference against the context's baseURI parameter, if specified.

Returns:

the dereferenced data

Throws:

URIReferenceException - if an exception occurs while dereferencing the specified uriReference

dereferenceExternalURI

protected Data dereferenceExternalURI(URI uri,
                                      XMLCryptoContext context)
                               throws URIReferenceException

Dereferences an external URI.

Parameters:

uri - The uri to be dereferenced.

context - An XMLCryptoContext that may contain additional useful information for dereferencing the URI. This implementation should dereference the specified URIReference against the context's baseURI parameter, if specified.

Returns:

the dereferenced data

Throws:

URIReferenceException - if an exception occurs while dereferencing the specified uriReference

isSameDocumentFullXPointer

public static boolean isSameDocumentFullXPointer(String uriString)
                                          throws URIReferenceException

This method checks if a URI fragment is a full XPointer.

Parameters:

uriString - a String that represents a URI reference.

Returns:

true if and only iff a full XPointer is used.

Throws:

URIReferenceException