/*
* 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 legal-notices/CDDLv1_0.txt
* or http://forgerock.org/license/CDDLv1.0.html.
* 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 legal-notices/CDDLv1_0.txt.
* 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;
/**
* This class provides an enumeration of evaluation results returned by
* the bind rule evaluation methods.
*/
public enum EnumEvalResult {
/**
* This enumeration is returned when the result of the evaluation is TRUE.
*/
TRUE(0),
/**
* This enumeration is returned when the result of the evaluation is FALSE.
*/
FALSE(1),
/**
* This enumeration is returned when the result of the evaluation is FAIL.
* This should only be returned when a system failure occurred.
*/
FAIL(2),
/**
* This is an internal enumeration used during evaluation of bind rule when
* internal processing of the evaluation is undefined. It is never returned
* back as a result of the evaluation.
*/
ERR(3);
/**
* Create a new enumeration type for the specified result value.
* @param v The value of the result.
*/
EnumEvalResult(int v) {
}
/**
* The method tries to determine if the result was undefined, and if so
* it returns an FAIL enumeration. If the result was not undefined (the
* common case for all of the bind rule evaluations), then the bind rule
* type is examined to see if the result needs to be flipped (type equals
* NOT_EQUAL_BINDRULE_TYPE).
* @param type The bind rule type enumeration of the bind rule.
* @param undefined A flag that signals the the result was undefined.
* @return An enumeration containing the correct result after processing
* the undefined field and the bind rule type enumeration.
*/
public EnumEvalResult getRet(EnumBindRuleType type, boolean undefined) {
if (equals(EnumEvalResult.TRUE) || !undefined) {
if (EnumBindRuleType.NOT_EQUAL_BINDRULE_TYPE.equals(type)) {
return negate(this);
}
} else {
return EnumEvalResult.FAIL;
}
return this;
}
/**
* This method is used to possibly negate the result of a simple bind rule
* evaluation. If the boolean is true than the result is negated.
* @param v The enumeration result of the simple bind rule evaluation.
* @param negate If true the result should be negated (TRUE->FALSE, FALSE->TRUE).
* @return A possibly negated enumeration result.
*/
public static EnumEvalResult negateIfNeeded(EnumEvalResult v, boolean negate) {
if (negate) {
return negate(v);
}
return v;
}
private static EnumEvalResult negate(EnumEvalResult v) {
if (EnumEvalResult.TRUE.equals(v)) {
return EnumEvalResult.FALSE;
} else {
return EnumEvalResult.TRUE;
}
}
/**
* Helper method that converts this enumeration to a boolean. Usually the
* FAIL enumeration has been handled before this is called.
* @return True if the enumeration is TRUE, else false.
*/
public boolean getBoolVal() {
return this == EnumEvalResult.TRUE;
}
}