/*
* 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 extop keyword rule.
*/
public class ExtOp {
/*
* HashSet of OID strings parsed from the decode.
*/
private HashSet<String> extOpOIDs = new HashSet<String>();
/*
* Enumeration representing the extop operator.
*/
private EnumTargetOperator op = EnumTargetOperator.EQUALITY;
/**
* Creates a class that can be used to evaluate a extop rule.
*
* @param op The operator of the extop expression (=, !=).
* @param extOpOIDs Set of extended operation OIDS to use in the evaluation
* (wild-card '*' allowed).
*/
private ExtOp(EnumTargetOperator op, HashSet<String> extOpOIDs) {
this.extOpOIDs=extOpOIDs;
this.op=op;
}
/**
* Decode an extop expression string.
*
* @param operator An enumeration representing the operator type.
* @param expr A string representing the extop expression.
* @return A class representing the extop expression that can be
* used to evaluate an ACI.
*
* @throws AciException If the specified expression string is invalid.
*/
public static ExtOp decode(EnumTargetOperator operator, String expr)
throws AciException {
HashSet<String> extOpOIDs =
Aci.decodeOID(expr,
WARN_ACI_SYNTAX_INVALID_TARGEXTOP_EXPRESSION.get(expr));
return new ExtOp(operator, extOpOIDs);
}
/**
* Check if a extop is applicable based on the provided target match
* context.
*
* @param matchCtx The target match context to use in the check.
* @return True if the extop is applicable based on the context.
*/
public boolean isApplicable(AciTargetMatchContext matchCtx) {
if(matchCtx.getExtOpOID() == null)
return false;
boolean ret = false;
for(String oid : extOpOIDs)
if(oid.equals("*") || matchCtx.getExtOpOID().equals(oid)) {
ret=true;
break;
}
if(op.equals(EnumTargetOperator.NOT_EQUALITY))
ret = !ret;
return ret;
}
}