package com.tesora.dve.concurrent;
/*
* #%L
* Tesora Inc.
* Database Virtualization Engine
* %%
* Copyright (C) 2011 - 2014 Tesora Inc.
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* #L%
*/
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;
public class PEDefaultThreadFactory implements ThreadFactory {
private static final ConcurrentHashMap<String, AtomicInteger> pools = new ConcurrentHashMap<String, AtomicInteger>();
private final String prefix;
private final AtomicInteger threadNumber = new AtomicInteger(1);
public PEDefaultThreadFactory() {
this("pool");
}
public PEDefaultThreadFactory(final String name) {
AtomicInteger poolCounter = pools.putIfAbsent(name, new AtomicInteger(2));
if (poolCounter == null)
this.prefix = name + "-";
else
this.prefix = name + "-" + poolCounter.getAndIncrement() + "-";
}
public Thread newThread(final Runnable command) {
Thread t = new Thread(command, prefix + threadNumber.getAndIncrement());
if (t.isDaemon())
t.setDaemon(false);
if (t.getPriority() != Thread.NORM_PRIORITY)
t.setPriority(Thread.NORM_PRIORITY);
return t;
}
}