org.nhindirect.policy.impl

Class DefaultPolicyFilter

java.lang.Object

org.nhindirect.policy.impl.DefaultPolicyFilter

All Implemented Interfaces:

PolicyFilter

public class DefaultPolicyFilter
extends Object
implements PolicyFilter

Default implementation of the PolicyFilter interface.

Since:

1.0

Author:

Greg Meyer

Constructor Summary

Constructors

Constructor and Description
DefaultPolicyFilter() Default constructor.

Method Summary

Modifier and Type	Method and Description
boolean	isCompliant(X509Certificate cert, InputStream policyStream, PolicyLexicon lexicon) Checks if an X509 certificate is compliant with a given policy.
boolean	isCompliant(X509Certificate cert, PolicyExpression expression) Checks if an X509 certificate is compliant with a given policy.
void	setCompiler(Compiler compiler) Sets the compiler for the filters.
void	setExecutionEngine(ExecutionEngine executionEngine) Sets the execution engine for the filters.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultPolicyFilter

public DefaultPolicyFilter()

Default constructor. Creates default instances of the compiler and execution engine.

Method Detail

setCompiler

public void setCompiler(Compiler compiler)

Sets the compiler for the filters.

Parameters:

compiler - The compiler for the filters.

setExecutionEngine

public void setExecutionEngine(ExecutionEngine executionEngine)

Sets the execution engine for the filters.

Parameters:

executionEngine - The execution engine for the filters.

isCompliant

public boolean isCompliant(X509Certificate cert,
                           InputStream policyStream,
                           PolicyLexicon lexicon)
                    throws PolicyProcessException

Checks if an X509 certificate is compliant with a given policy. The policy is expressed in a given lexicon which must be parsed.

Specified by:

isCompliant in interface PolicyFilter

Parameters:

cert - The certificate that will be checked for compliance.

policyStream - The policy stream in an input stream.

lexicon - The lexicon of the policy contained within the input stream.

Returns:

True if the certificate is compliant with the given policy. False otherwise.

Throws:

PolicyProcessException - Thrown if the policy engine process cannot be successfully executed.

isCompliant

public boolean isCompliant(X509Certificate cert,
                           PolicyExpression expression)
                    throws PolicyProcessException

Checks if an X509 certificate is compliant with a given policy. This is a slight variation from the other version of this method in that it takes a previously parsed PolicyExpression. This method version exists for performance reasons when it is not necessary to parse the policy expression from a lexicon input stream; it allows the reuse of a parsed PolicyExpression.

Specified by:

isCompliant in interface PolicyFilter

Parameters:

cert - The certificate that will be checked for compliance.

expression - A previously parsed or programmatically generated PolicyExpression.

Returns:

True if the certificate is compliant with the given policy. False otherwise.

Throws:

PolicyProcessException - Thrown if the policy engine process cannot be successfully executed.