/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

package org.apache.oozie.util;

import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;

public class NamedThreadFactory implements ThreadFactory {
    private final AtomicInteger counter = new AtomicInteger();
    private final String threadPrefix;

    public NamedThreadFactory(String threadPrefix) {
        this.threadPrefix = ParamChecker.notEmpty(threadPrefix, "threadPrefix");
    }

    @Override
    public Thread newThread(Runnable r) {
        Thread t = new Thread(r);
        t.setName(threadPrefix + "-" + counter.getAndIncrement());
        return t;
    }
}