iaik.ixsil.algorithms

Class AlgorithmFactoryDefaultImpl

java.lang.Object

iaik.ixsil.algorithms.AlgorithmFactory

iaik.ixsil.algorithms.AlgorithmFactoryDefaultImpl

public class AlgorithmFactoryDefaultImpl
extends AlgorithmFactory

This class is the default implementation of the AlgorithmFactory interface. The associations between the algorithm URIs (the key) and the corresponding algorithm implementation classes are managed with the IXSIL algorithm properties: For a specified algorithm URI the full qualified class name of the associated algorithm implementation class is looked up in this property file.

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.lang.String	ALGID_PREFIX_ The prefix for IXSIL algorithm properties, which associate digest algorithms.
protected static java.lang.String	C14N_PREFIX_ The prefix for IXSIL algorithm properties, which associate canonicalization algorithms.
protected static java.lang.String	DIGEST_PREFIX_ The prefix for IXSIL algorithm properties, which associate digest algorithms.
protected static java.lang.String	SIGNATURE_PREFIX_ The prefix for IXSIL algorithm properties, which associate signature algorithms.
protected static java.lang.String	TRANSFORM_PREFIX_ The prefix for IXSIL algorithm properties, which associate transforms.

Constructor Summary

Constructors

Constructor and Description
AlgorithmFactoryDefaultImpl()

Method Summary

Modifier and Type	Method and Description
CanonicalizationAlgorithm	createCanonicalizationAlgorithm(URI algorithmURI) Creates a canonicalization algorithm object for the specified algorithm URI.
DigestAlgorithm	createDigestAlgorithm(URI algorithmURI) Creates a digest algorithm object for the specified algorithm URI.
SignatureAlgorithm	createSignatureAlgorithm(URI algorithmURI) Creates a signature algorithm object for the specified algorithm URI.
Transform	createTransform(URI algorithmURI) Creates a transform object for the specified algorithm URI.

Methods inherited from class iaik.ixsil.algorithms.AlgorithmFactory

createFactory

Methods inherited from class java.lang.Object

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

Field Detail

DIGEST_PREFIX_

protected static final java.lang.String DIGEST_PREFIX_

The prefix for IXSIL algorithm properties, which associate digest algorithms.

See Also:

Constant Field Values

ALGID_PREFIX_

protected static final java.lang.String ALGID_PREFIX_

The prefix for IXSIL algorithm properties, which associate digest algorithms.

See Also:

Constant Field Values

SIGNATURE_PREFIX_

protected static final java.lang.String SIGNATURE_PREFIX_

The prefix for IXSIL algorithm properties, which associate signature algorithms.

See Also:

Constant Field Values

C14N_PREFIX_

protected static final java.lang.String C14N_PREFIX_

The prefix for IXSIL algorithm properties, which associate canonicalization algorithms.

See Also:

Constant Field Values

TRANSFORM_PREFIX_

protected static final java.lang.String TRANSFORM_PREFIX_

The prefix for IXSIL algorithm properties, which associate transforms.

See Also:

Constant Field Values

Constructor Detail

AlgorithmFactoryDefaultImpl

public AlgorithmFactoryDefaultImpl()

Method Detail

createDigestAlgorithm

public DigestAlgorithm createDigestAlgorithm(URI algorithmURI)
                                      throws AlgorithmFactoryException

Creates a digest algorithm object for the specified algorithm URI.

Specified by:

createDigestAlgorithm in class AlgorithmFactory

Parameters:

algorithmURI - An URI used to identify the desired digest algorithm. This corresponds to the "URI" attribute of the algorithm's XML representation.

Returns:

an instance of the digest algorithm implementation class associated with the specified URI.

Throws:

AlgorithmFactoryException - if creating the algorithm instance fails for any reason.

createCanonicalizationAlgorithm

public CanonicalizationAlgorithm createCanonicalizationAlgorithm(URI algorithmURI)
                                                          throws AlgorithmFactoryException

Creates a canonicalization algorithm object for the specified algorithm URI.

Specified by:

createCanonicalizationAlgorithm in class AlgorithmFactory

Parameters:

algorithmURI - An URI used to identify the desired canonicalization algorithm. This corresponds to the "URI" attribute of the algorithm's XML representation.

Returns:

an instance of the canonicalization algorithm implementation class associated with the specified URI.

Throws:

AlgorithmFactoryException - if creating the algorithm instance fails for any reason.

createSignatureAlgorithm

public SignatureAlgorithm createSignatureAlgorithm(URI algorithmURI)
                                            throws AlgorithmFactoryException

Creates a signature algorithm object for the specified algorithm URI.

Specified by:

createSignatureAlgorithm in class AlgorithmFactory

Parameters:

algorithmURI - An URI used to identify the desired signature algorithm. This corresponds to the "URI" attribute of the algorithm's XML representation.

Returns:

an instance of the signature algorithm implementation class associated with the specified URI.

Throws:

AlgorithmFactoryException - if creating the algorithm instance fails for any reason.

createTransform

public Transform createTransform(URI algorithmURI)
                          throws AlgorithmFactoryException

Creates a transform object for the specified algorithm URI.

Specified by:

createTransform in class AlgorithmFactory

Parameters:

algorithmURI - An URI used to identify the desired transform. This corresponds to the "URI" attribute of the transform's XML representation.

Returns:

an instance of the transform implementation class associated with the specified URI.

Throws:

AlgorithmFactoryException - if creating the transform instance fails for any reason.