com.netflix.servo.util.ThreadFactories Maven / Gradle / Ivy
/*
* Copyright 2014 Netflix, Inc.
*
* 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.
*/
package com.netflix.servo.util;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicLong;
/**
* Simple utility class to create thread factories.
*/
public final class ThreadFactories {
private ThreadFactories() {
}
private static final ThreadFactory BACKING_FACTORY = Executors.defaultThreadFactory();
/**
* Create a new {@link ThreadFactory} that produces daemon threads with a given name format.
*
* @param fmt String format: for example foo-%d
* @return a new {@link ThreadFactory}
*/
public static ThreadFactory withName(final String fmt) {
return new ThreadFactory() {
private final AtomicLong count = new AtomicLong(0);
@Override
public Thread newThread(Runnable r) {
final Thread t = BACKING_FACTORY.newThread(r);
t.setDaemon(true);
t.setName(String.format(fmt, count.getAndIncrement()));
return t;
}
};
}
}