Package org.wildfly.security.auth.callback

Class ParameterCallback

java.lang.Object

org.wildfly.security.auth.callback.ParameterCallback

All Implemented Interfaces:

Serializable, Callback, ExtendedCallback

public final class ParameterCallback
extends Object
implements ExtendedCallback, Serializable

A callback used to acquire parameter specifications, either for outbound or inbound authentication. The supplied parameter information may be used to select an authentication mechanism, or to set parameters for an establishing mechanism. The supplied parameter specification should be of a supported type; the isParameterSupported(AlgorithmParameterSpec) and isParameterTypeSupported(Class) methods can be used to query the types that are supported. If no credential is available, null is set, and authentication may fail. If an unsupported credential type is set, authentication may fail.

Author:

David M. Lloyd

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private Class<? extends AlgorithmParameterSpec>[]	allowedTypes
private AlgorithmParameterSpec	parameterSpec
private static long	serialVersionUID

Constructor Summary

Constructors

Constructor	Description
ParameterCallback(Class<? extends AlgorithmParameterSpec>... allowedTypes)	Construct a new instance.
ParameterCallback(AlgorithmParameterSpec parameterSpec, Class<? extends AlgorithmParameterSpec>... allowedTypes)	Construct a new instance.

Method Summary

Modifier and Type	Method	Description
AlgorithmParameterSpec	getParameterSpec()	Get the parameter specification.
boolean	isOptional()	Determine if this callback is optional.
boolean	isParameterSupported(AlgorithmParameterSpec parameterSpec)	Determine whether a parameter specification would be supported by the authentication.
boolean	isParameterTypeSupported(Class<? extends AlgorithmParameterSpec> parameterType)	Determine whether a credential type would be supported by the authentication.
boolean	needsInformation()	Determine if this callback is requesting information.
void	setParameterSpec(AlgorithmParameterSpec parameterSpec)	Set the parameter specification.

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

allowedTypes

private final Class<? extends AlgorithmParameterSpec>[] allowedTypes

parameterSpec

private AlgorithmParameterSpec parameterSpec

Constructor Detail

ParameterCallback

@SafeVarargs
public ParameterCallback(Class<? extends AlgorithmParameterSpec>... allowedTypes)

Construct a new instance.

Parameters:

allowedTypes - the allowed types of parameter specification

ParameterCallback

@SafeVarargs
public ParameterCallback(AlgorithmParameterSpec parameterSpec,
                         Class<? extends AlgorithmParameterSpec>... allowedTypes)

Construct a new instance.

Parameters:

parameterSpec - the default parameter spec value, if any

allowedTypes - the allowed types of parameter spec

Method Detail

getParameterSpec

public AlgorithmParameterSpec getParameterSpec()

Get the parameter specification.

Returns:

the parameter specification, or null if it wasn't set yet

setParameterSpec

public void setParameterSpec(AlgorithmParameterSpec parameterSpec)

Set the parameter specification.

Parameters:

parameterSpec - the parameter specification, or null if no parameter specification is available

isParameterSupported

public boolean isParameterSupported(AlgorithmParameterSpec parameterSpec)

Determine whether a parameter specification would be supported by the authentication.

Parameters:

parameterSpec - the parameter specification to test

Returns:

true if the parameter specification is non-null and supported, false otherwise

isParameterTypeSupported

public boolean isParameterTypeSupported(Class<? extends AlgorithmParameterSpec> parameterType)

Determine whether a credential type would be supported by the authentication.

Parameters:

parameterType - the parameter specification type to test

Returns:

true if the parameter specification type is supported, false otherwise

isOptional

public boolean isOptional()

Description copied from interface: ExtendedCallback

Determine if this callback is optional.

Specified by:

isOptional in interface ExtendedCallback

Returns:

true if the callback is optional, false if it is mandatory

needsInformation

public boolean needsInformation()

Description copied from interface: ExtendedCallback

Determine if this callback is requesting information.

Specified by:

needsInformation in interface ExtendedCallback

Returns:

true if the callback is requesting information, false if it is only providing information