001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *      http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019package org.apache.oozie.util;
020
021import java.util.concurrent.ThreadFactory;
022import java.util.concurrent.atomic.AtomicInteger;
023
024public class NamedThreadFactory implements ThreadFactory {
025    private final AtomicInteger counter = new AtomicInteger();
026    private final String threadPrefix;
027
028    public NamedThreadFactory(String threadPrefix) {
029        this.threadPrefix = ParamChecker.notEmpty(threadPrefix, "threadPrefix");
030    }
031
032    @Override
033    public Thread newThread(Runnable r) {
034        Thread t = new Thread(r);
035        t.setName(threadPrefix + "-" + counter.getAndIncrement());
036        return t;
037    }
038}