/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2008 Sun Microsystems, Inc.
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*/
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package org.opends.server.authorization.dseecompat;
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import static org.opends.messages.AccessControlMessages.*;
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import java.util.HashSet;
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/**
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* This class represents an ACI's targetcontrol keyword.
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*/
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public class TargetControl {
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/*
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* HashSet of OID strings parsed from the decode.
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*/
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private HashSet<String> controlOIDS = new HashSet<String>();
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/*
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* Enumeration representing the targetcontrol operator.
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*/
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private EnumTargetOperator op = EnumTargetOperator.EQUALITY;
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/**
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* Creates a class that can be used to evaluate a targetcontrol.
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*
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* @param op The operator of the targetcontrol expression (=, !=).
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* @param controlOIDS Set of control OIDS to use in the evaluation (may
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* contain wild-card '*').
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*/
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private TargetControl(EnumTargetOperator op, HashSet<String> controlOIDS) {
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this.controlOIDS=controlOIDS;
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this.op=op;
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}
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/**
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* Decode an targetcontrol expression string.
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*
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* @param operator An enumeration representing the operator type.
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* @param expr A string representing the targetcontrol expression.
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* @return A class representing the targetcontrol expression that can be
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* used to evaluate an ACI.
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*
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* @throws AciException If the specified expression string is invalid.
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*/
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public static TargetControl decode(EnumTargetOperator operator, String expr)
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throws AciException {
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HashSet<String> controlOIDs =
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Aci.decodeOID(expr,
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WARN_ACI_SYNTAX_INVALID_TARGETCONTROL_EXPRESSION.get(expr));
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return new TargetControl(operator, controlOIDs);
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}
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/**
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* Check if a targetcontrol is applicable based on the provided target match
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* context.
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*
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* @param matchCtx The target match context to use in the check.
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* @return True if the targetcontrol is applicable based on the context.
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*/
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public boolean isApplicable(AciTargetMatchContext matchCtx) {
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if(matchCtx.getControlOID() == null)
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return false;
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boolean ret = false;
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for(String oid : controlOIDS)
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if(oid.equals("*") || matchCtx.getControlOID().equals(oid)) {
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ret=true;
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break;
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}
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if(op.equals(EnumTargetOperator.NOT_EQUALITY))
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ret = !ret;
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return ret;
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}
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}
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