/*-
 * ============LICENSE_START=======================================================
 * ONAP-PDP
 * ================================================================================
 * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ============LICENSE_END=========================================================
 */

package org.onap.policy.xacml.pdp.std.functions;

import java.util.ArrayList;
import java.util.List;

/**
 * Creates a list of policy ids.
 *
 * @version $Revision: 1.3 $
 */
public class PolicyList {

    private static List<String> policyList = new ArrayList<>();


    public static List<String> getpolicyList() {
        return policyList;
    }

    /**
     * Add policy id in the policy list.
     *
     * @param policyId the policy id
     */
    public static void addPolicyId(final String policyId) {
        if (!policyList.contains(policyId)) {
            policyList.add(policyId);
        }
    }

    /**
     * Clear policy list.
     */
    public static void clearPolicyList() {
        if (!policyList.isEmpty()) {
            policyList.clear();
        }
    }
}