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

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

All Implemented Interfaces:

DOMURIReference, RetrievalMethod, URIReference, XMLStructure

public final class DOMRetrievalMethod
extends DOMStructure
implements RetrievalMethod, DOMURIReference

DOM-based implementation of RetrievalMethod.

Author:

Sean Mullan, Joyce Leung

Constructor Summary

DOMRetrievalMethod(Element rmElem, XMLCryptoContext context, Provider provider)
Creates a DOMRetrievalMethod from an element.

DOMRetrievalMethod(String uri, String type, List<? extends Transform> transforms)
Creates a DOMRetrievalMethod containing the specified URIReference and List of Transforms.

Method Summary

Data	dereference(XMLCryptoContext context) Dereferences the KeyInfo information referenced by this RetrievalMethod and applies the specified Transforms.
XMLStructure	dereferenceAsXMLStructure(XMLCryptoContext context)
boolean	equals(Object obj)
Node	getHere() Returns the here node.
List<Transform>	getTransforms() Returns an unmodifiable list of Transforms of this RetrievalMethod.
String	getType() Returns the type of data referenced by this URI.
String	getURI() Returns the URI of the referenced KeyInfo information.
int	hashCode()
void	marshal(XmlWriter xwriter, String dsPrefix, XMLCryptoContext context)

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

Constructor Detail

DOMRetrievalMethod

public DOMRetrievalMethod(String uri,
                          String type,
                          List<? extends Transform> transforms)

Creates a DOMRetrievalMethod containing the specified URIReference and List of Transforms.

Parameters:

uri - the URI

type - the type

transforms - a list of Transforms. The list is defensively copied to prevent subsequent modification. May be null or empty.

Throws:

IllegalArgumentException - if the format of uri is invalid, as specified by Reference's URI attribute in the W3C specification for XML-Signature Syntax and Processing

NullPointerException - if uriReference is null

ClassCastException - if transforms contains any entries that are not of type Transform

DOMRetrievalMethod

public DOMRetrievalMethod(Element rmElem,
                          XMLCryptoContext context,
                          Provider provider)
                   throws MarshalException

Creates a DOMRetrievalMethod from an element.

Parameters:

rmElem - a RetrievalMethod element

Throws:

MarshalException

Method Detail

getURI

public String getURI()

Description copied from interface: RetrievalMethod

Returns the URI of the referenced KeyInfo information.

Specified by:

getURI in interface RetrievalMethod

Specified by:

getURI in interface URIReference

Returns:

the URI of the referenced KeyInfo information in RFC 2396 format (never null)

getType

public String getType()

Description copied from interface: URIReference

Returns the type of data referenced by this URI.

Specified by:

getType in interface URIReference

Returns:

the type (a URI) of the data object (may be null if not specified)

getTransforms

public List<Transform> getTransforms()

Description copied from interface: RetrievalMethod

Returns an unmodifiable list of Transforms of this RetrievalMethod.

Specified by:

getTransforms in interface RetrievalMethod

Returns:

an unmodifiable list of Transform objects (may be empty but never null).

marshal

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

Specified by:

marshal in class DOMStructure

Throws:

MarshalException

getHere

public Node getHere()

Description copied from interface: DOMURIReference

Returns the here node.

Specified by:

getHere in interface DOMURIReference

Returns:

the attribute or processing instruction node or the parent element of the text node that directly contains the URI

dereference

public Data dereference(XMLCryptoContext context)
                 throws URIReferenceException

Description copied from interface: RetrievalMethod

Dereferences the KeyInfo information referenced by this RetrievalMethod and applies the specified Transforms.

Specified by:

dereference in interface RetrievalMethod

Parameters:

context - an XMLCryptoContext that may contain additional useful information for dereferencing the URI. The context's baseURI and dereferencer parameters (if specified) are used to resolve and dereference this RetrievalMethod

Returns:

a Data object representing the raw contents of the KeyInfo information referenced by this RetrievalMethod. It is the caller's responsibility to convert the returned data to an appropriate KeyInfo object.

Throws:

URIReferenceException - if there is an error while dereferencing

dereferenceAsXMLStructure

public XMLStructure dereferenceAsXMLStructure(XMLCryptoContext context)
                                       throws URIReferenceException

Throws:

URIReferenceException

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object