openaz-xacml-pdp/src/main/java/org/apache/openaz/xacml/pdp/policy/PolicyFinder.java

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/*
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 *          THIS FILE CONTAINS PROPRIETARY INFORMATION OF
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package org.apache.openaz.xacml.pdp.policy;

import org.apache.openaz.xacml.api.IdReferenceMatch;
import org.apache.openaz.xacml.pdp.eval.EvaluationContext;

/**
 * PolicyFinder is the interface for objects that can locate XACML Policies and PolicySets by identifier and
 * contains the root Policy or Policy set. The interface is designed to allow for finders that can retrieve a
 * root policy from a repository based on matching a {@link org.apache.openaz.xacml.api.Request}.
 */
public interface PolicyFinder {
    /**
     * Gets the root {@link PolicyDef} from the policy store configured by the particular implementation of
     * the <code>PolicyFinderFactory</code> class that is applicable to the
     * {@link org.apache.openaz.xacml.api.Request} in the given
     * {@link org.apache.openaz.xacml.pdp.eval.EvaluationContext}.
     *
     * @return a <code>PolicyFinderResult</code> with the root <code>PolicyDef</code>
     */
    PolicyFinderResult<PolicyDef> getRootPolicyDef(EvaluationContext evaluationContext);

    /**
     * Gets the {@link Policy} that matches the given {@link org.apache.openaz.xacml.api.IdReferenceMatch}.
     *
     * @param idReferenceMatch the <code>IdReferenceMatch</code> to search for
     * @return a <code>PolicyFinderResult</code> with the <code>Policy</code> matching the given
     *         <code>IdReferenceMatch</code>
     */
    PolicyFinderResult<Policy> getPolicy(IdReferenceMatch idReferenceMatch);

    /**
     * Gets the {@link PolicySet} that matches the given {@link org.apache.openaz.xacml.api.IdReferenceMatch}.
     *
     * @param idReferenceMatch the <code>IdReferenceMatch</code> to search for
     * @return a <code>PolicyFinderResult</code> with the <code>PolicySet</code> matching the given
     *         <code>IdReferenceMatch</code>.
     */
    PolicyFinderResult<PolicySet> getPolicySet(IdReferenceMatch idReferenceMatch);

}