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/*============LICENSE_START=======================================================
 * oom-truststore-merger
 * ================================================================================
 * Copyright (C) 2020 Nokia. 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.oom.certservice.postprocessor.merger.model.certificate;


import java.util.concurrent.atomic.AtomicInteger;

public class PemAliasGenerator {

    private static final String PREFIX_ALIAS_NAME = "pem-trusted-certificate-";
    private static final PemAliasGenerator INSTANCE = new PemAliasGenerator();
    private static AtomicInteger counter = new AtomicInteger(0);

    private PemAliasGenerator() {
    }

    public static PemAliasGenerator getInstance() {
        return INSTANCE;
    }

    public String getAlias() {

        return PREFIX_ALIAS_NAME + counter.getAndIncrement();
    }
}