/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.bolt.protocol.common.connector.executor;

import io.netty.util.concurrent.FastThreadLocalThread;
import java.util.concurrent.ForkJoinPool;
import java.util.concurrent.ForkJoinWorkerThread;
import org.neo4j.kernel.impl.scheduler.GroupedDaemonThreadFactory;
import org.neo4j.scheduler.Group;

/**
 * Factory for providing {@link FastThreadLocalThread}s for netty to allow faster access and cleanup.
 */
public class NettyThreadFactory extends GroupedDaemonThreadFactory {
    public NettyThreadFactory(Group group, ThreadGroup parentThreadGroup) {
        super(group, parentThreadGroup);
    }

    @Override
    public ForkJoinWorkerThread newThread(ForkJoinPool pool) {
        throw new UnsupportedOperationException("ForkJoinWorkerThread are not supported by netty");
    }

    @Override
    public Thread newThread(Runnable r) {
        return new FastThreadLocalThread(threadGroup, r, group.threadName()) {
            @Override
            public String toString() {
                return threadToString(this);
            }
        };
    }
}
