/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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 io.undertow.util;
import io.undertow.
UndertowLogger;
import java.util.
LinkedList;
import java.util.
List;
import java.util.concurrent.
Executor;
/**
* Executor that will continue to re-run tasks in a loop that are submitted from its own thread.
*
* @author Stuart Douglas
*/
@
Deprecated
public class
PipeliningExecutor implements
Executor {
private final
Executor executor;
private static final
ThreadLocal<
LinkedList<
Runnable>>
THREAD_QUEUE = new
ThreadLocal<>();
public
PipeliningExecutor(
Executor executor) {
this.
executor =
executor;
}
@
Override
public void
execute(final
Runnable command) {
List<
Runnable>
queue =
THREAD_QUEUE.
get();
if (
queue != null) {
queue.
add(
command);
} else {
executor.
execute(new
Runnable() {
@
Override
public void
run() {
LinkedList<
Runnable>
queue =
THREAD_QUEUE.
get();
if (
queue == null) {
THREAD_QUEUE.
set(
queue = new
LinkedList<>());
}
try {
command.
run();
} catch (
Throwable t) {
UndertowLogger.
REQUEST_LOGGER.
debugf(
t, "Task %s failed",
command);
}
Runnable runnable =
queue.
poll();
while (
runnable != null) {
try {
runnable.
run();
} catch (
Throwable t) {
UndertowLogger.
REQUEST_LOGGER.
debugf(
t, "Task %s failed",
command);
}
runnable =
queue.
poll();
}
}
});
}
}
}