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