/*
* Copyright (c) 2011-2018 Pivotal Software Inc, All Rights Reserved.
*
* 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 reactor.core.scheduler;
import java.util.concurrent.
ThreadFactory;
import java.util.concurrent.atomic.
AtomicLong;
import java.util.function.
BiConsumer;
import java.util.function.
Supplier;
import org.jetbrains.annotations.
NotNull;
import reactor.util.annotation.
Nullable;
/**
* The standard Reactor {@link ThreadFactory Thread factories} to be used by {@link Scheduler},
* creating {@link Thread} with a prefix (which can be retrieved with the {@link #get()} method).
*
* @author Simon Baslé
*/
class
ReactorThreadFactory implements
ThreadFactory,
Supplier<
String>,
Thread.
UncaughtExceptionHandler {
final private
String name;
final private
AtomicLong counterReference;
final private boolean
daemon;
final private boolean
rejectBlocking;
@
Nullable
final private
BiConsumer<
Thread,
Throwable>
uncaughtExceptionHandler;
ReactorThreadFactory(
String name,
AtomicLong counterReference,
boolean
daemon,
boolean
rejectBlocking,
@
Nullable BiConsumer<
Thread,
Throwable>
uncaughtExceptionHandler) {
this.
name =
name;
this.
counterReference =
counterReference;
this.
daemon =
daemon;
this.
rejectBlocking =
rejectBlocking;
this.
uncaughtExceptionHandler =
uncaughtExceptionHandler;
}
@
Override
public final
Thread newThread(@
NotNull Runnable runnable) {
String newThreadName =
name + "-" +
counterReference.
incrementAndGet();
Thread t =
rejectBlocking
? new
NonBlockingThread(
runnable,
newThreadName)
: new
Thread(
runnable,
newThreadName);
if (
daemon) {
t.
setDaemon(true);
}
if (
uncaughtExceptionHandler != null) {
t.
setUncaughtExceptionHandler(this);
}
return
t;
}
@
Override
public void
uncaughtException(
Thread t,
Throwable e) {
if (
uncaughtExceptionHandler == null) {
return;
}
uncaughtExceptionHandler.
accept(
t,
e);
}
/**
* Get the prefix used for new {@link Thread Threads} created by this {@link ThreadFactory}.
* The factory can also be seen as a {@link Supplier Supplier<String>}.
*
* @return the thread name prefix
*/
@
Override
public final
String get() {
return
name;
}
static final class
NonBlockingThread extends
Thread implements
NonBlocking {
public
NonBlockingThread(
Runnable target,
String name) {
super(
target,
name);
}
}
}