/*
* Copyright 2003-2015 JetBrains s.r.o.
*
* 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 jetbrains.mps.util;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.mps.annotations.Immutable;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;
/**
* This is merely a copy of Executors#DefaultThreadFactory, without security manager and with a configurable prefix and a daemon flag
*/
@Immutable
public final class NamedThreadFactory implements ThreadFactory {
private final static Logger LOG = LogManager.getLogger(NamedThreadFactory.class);
private final ThreadGroup myGroup;
private final AtomicInteger myThreadNumber = new AtomicInteger(1);
private final String myNamePrefix;
private final boolean myDaemon;
public NamedThreadFactory(@NotNull String prefix) {
this(prefix, false);
}
public NamedThreadFactory(@NotNull String prefix, boolean daemon) {
myDaemon = daemon;
myGroup = Thread.currentThread().getThreadGroup();
myNamePrefix = prefix;
}
@Override
public Thread newThread(@NotNull final Runnable original) {
Thread t = new Thread(myGroup, original, myNamePrefix + myThreadNumber.getAndIncrement());
t.setDaemon(myDaemon);
if (t.getPriority() != Thread.NORM_PRIORITY) {
t.setPriority(Thread.NORM_PRIORITY);
}
t.setUncaughtExceptionHandler((t1, e) -> LOG.error("Thread " + t1 + " threw the exception ", e));
return t;
}
}