org.opensaml.xml.security.credential.criteria
Class EvaluableCredentialCriteriaRegistry

java.lang.Object
  org.opensaml.xml.security.credential.criteria.EvaluableCredentialCriteriaRegistry

public final class EvaluableCredentialCriteriaRegistry
extends Object

A registry which manages mappings from types of Criteria to the class type which can evaluate that criteria's data against a Credential target. That latter class will be a subtype of EvaluableCredentialCriteria. Each EvaluableCredentialCriteria implementation that is registered MUST implement a single-arg constructor which takes an instance of the Criteria to be evaluated. The evaluable instance is instantiated reflectively based on this requirement.

Field Summary

static String

DEFAULT_MAPPINGS_FILE Properties file storing default mappings from criteria to evaluable credential criteria.

Method Summary

static void	clearRegistry() Clear all mappings from the registry.
static void	deregister(Class<? extends Criteria> criteriaClass) Deregister a criteria-evaluator mapping.
static EvaluableCredentialCriteria	getEvaluator(Criteria criteria) Get an instance of EvaluableCredentialCriteria which can evaluate the supplied criteria's requirements against a Credential target.
static void	init() Initialize the registry.
static boolean	isInitialized() Check whether the registry has been initialized.
static void	loadDefaultMappings() Load the default set of criteria-evaluator mappings from the default mappings properties file.
static void	loadMappings(Properties mappings) Load a set of criteria-evaluator mappings from the supplied properties set.
static Class<? extends EvaluableCredentialCriteria>	lookup(Class<? extends Criteria> clazz) Lookup the class subtype of EvaluableCredentialCriteria which is registered for the specified Criteria class.
static void	register(Class<? extends Criteria> criteriaClass, Class<? extends EvaluableCredentialCriteria> evaluableClass) Register a credential evaluator class for a criteria class.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_MAPPINGS_FILE

public static final String DEFAULT_MAPPINGS_FILE

Properties file storing default mappings from criteria to evaluable credential criteria. Will be loaded as a resource stream relative to this class.

See Also:

Constant Field Values

Method Detail

getEvaluator

public static EvaluableCredentialCriteria getEvaluator(Criteria criteria)
                                                throws SecurityException

Get an instance of EvaluableCredentialCriteria which can evaluate the supplied criteria's requirements against a Credential target.

Parameters:

criteria - the criteria to be evaluated against a credential

Returns:

an instance of of EvaluableCredentialCriteria representing the specified criteria's requirements

Throws:

SecurityException - thrown if there is an error reflectively instantiating a new instance of EvaluableCredentialCriteria based on class information stored in the registry

lookup

public static Class<? extends EvaluableCredentialCriteria> lookup(Class<? extends Criteria> clazz)

Lookup the class subtype of EvaluableCredentialCriteria which is registered for the specified Criteria class.

Parameters:

clazz - the Criteria class subtype to lookup

Returns:

the registered EvaluableCredentialCriteria class subtype

register

public static void register(Class<? extends Criteria> criteriaClass,
                            Class<? extends EvaluableCredentialCriteria> evaluableClass)

Register a credential evaluator class for a criteria class.

Parameters:

criteriaClass - class subtype of Criteria

evaluableClass - class subtype of EvaluableCredentialCriteria

deregister

public static void deregister(Class<? extends Criteria> criteriaClass)

Deregister a criteria-evaluator mapping.

Parameters:

criteriaClass - class subtype of Criteria

clearRegistry

public static void clearRegistry()

Clear all mappings from the registry.

isInitialized

public static boolean isInitialized()

Check whether the registry has been initialized.

Returns:

true if registry is already initialized, false otherwise

init

public static void init()

Initialize the registry.

loadDefaultMappings

public static void loadDefaultMappings()

Load the default set of criteria-evaluator mappings from the default mappings properties file.

loadMappings

public static void loadMappings(Properties mappings)

Load a set of criteria-evaluator mappings from the supplied properties set.

Parameters:

mappings - properies set where the key is the criteria class name, the value is the evaluator class name