/**
 * 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 com.alibaba.jstorm.message.netty;

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

import org.jboss.netty.util.ThreadNameDeterminer;
import org.jboss.netty.util.ThreadRenamingRunnable;

public class NettyRenameThreadFactory implements ThreadFactory {

    static {
        // Rename Netty threads
        ThreadRenamingRunnable.setThreadNameDeterminer(ThreadNameDeterminer.CURRENT);
    }

    final ThreadGroup group;
    final AtomicInteger index = new AtomicInteger(1);
    final String name;

    NettyRenameThreadFactory(String name) {
        SecurityManager s = System.getSecurityManager();
        group = (s != null) ? s.getThreadGroup() : Thread.currentThread().getThreadGroup();
        this.name = name;
    }

    public Thread newThread(Runnable r) {
        Thread t = new Thread(group, r, name + "-" + index.getAndIncrement(), 0);
        if (t.isDaemon())
            t.setDaemon(false);
        if (t.getPriority() != Thread.NORM_PRIORITY)
            t.setPriority(Thread.NORM_PRIORITY);
        return t;
    }
}