DaemonThreadFactory.java

/*******************************************************************************
 * Copyright 2013 André Rouél
 * 
 * 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 net.sf.uadetector.internal.util;

import java.util.concurrent.ThreadFactory;

import javax.annotation.Nonnull;

import net.sf.qualitycheck.Check;

/**
 * Factory to create daemon threads that runs as a background process and do not blocks an application shutdown
 */
public final class DaemonThreadFactory implements ThreadFactory {

    /**
     * Name of a new thread
     */
    @Nonnull
    private final String threadName;

    /**
     * Creates a new {@code DaemonThreadFactory} which creates itself threads with the specified name.
     * 
     * @param threadName
     *            name of a thread to be created
     */
    public DaemonThreadFactory(@Nonnull final String threadName) {
        Check.notNull(threadName, "threadName");
        Check.notEmpty(threadName.trim(), "threadName");
        this.threadName = threadName;
    }

    @Override
    public Thread newThread(@Nonnull final Runnable runnable) {
        final Thread thread = new Thread(runnable);
        thread.setName(threadName);
        thread.setDaemon(true);
        return thread;
    }

}