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A reactive Java web server.
/*
* Copyright (c) 1998-2015 Caucho Technology -- all rights reserved
*
* This file is part of Baratine(TM)(TM)
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Baratine 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 2 of the License, or
* (at your option) any later version.
*
* Baratine 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Baratine; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.v5.amp.deliver;
import java.util.Objects;
import java.util.concurrent.Executor;
import java.util.function.Supplier;
import com.caucho.v5.amp.queue.CounterBuilder;
import com.caucho.v5.amp.queue.QueueRingFixed;
import com.caucho.v5.amp.queue.QueueRingResizing;
import com.caucho.v5.amp.thread.ThreadPool;
import com.caucho.v5.util.L10N;
/**
* Interface for an actor queue
*/
public class QueueDeliverBuilderImpl // extends MessageOutbox>
implements QueueDeliverBuilder
{
private static final L10N L = new L10N(QueueDeliverBuilderImpl.class);
private static final int DEFAULT_INITIAL = 16;
private static final int DEFAULT_CAPACITY = 1024;
//private DeliverOutbox []_processors;
//private int _initial = 64;
private int _initial = -1;
private int _capacity = -1;
private boolean _isMultiworker;
private int _multiworkerOffset = 1;
private Executor _executor; // = ThreadPool.getCurrent();
//private long _workerIdleTimeout; // = 500L;
private int _threadMax = 64 * 1024;
private ClassLoader _classLoader
= Thread.currentThread().getContextClassLoader();
//private Supplier> _outboxFactory;
private Object _outboxContext;
public QueueDeliverBuilderImpl()
{
//_outboxFactory = ()->new OutboxImpl<>();
}
@Override
public QueueDeliverBuilderImpl sizeMax(int capacity)
{
_capacity = capacity;
return this;
}
@Override
public int sizeMax()
{
if (_capacity > 0) {
return _capacity;
}
else {
return DEFAULT_CAPACITY;
}
}
@Override
public QueueDeliverBuilderImpl size(int initial)
{
_initial = initial;
return this;
}
@Override
public int size()
{
if (_initial > 0) {
return _initial;
}
else if (_capacity > 0) {
return sizeMax();
}
else {
return DEFAULT_INITIAL;
}
}
@Override
public QueueDeliverBuilderImpl multiworker(boolean isMultiworker)
{
_isMultiworker = isMultiworker;
return this;
}
@Override
public boolean isMultiworker()
{
return _isMultiworker;
}
@Override
public QueueDeliverBuilderImpl multiworkerOffset(int offset)
{
_multiworkerOffset = offset;
return this;
}
@Override
public int multiworkerOffset()
{
return _multiworkerOffset;
}
protected void validateFullBuilder()
{
validateBuilder();
}
protected void validateBuilder()
{
}
public Object getOutboxContext()
{
return _outboxContext;
}
public void setOutboxContext(Object context)
{
Objects.requireNonNull(context);
_outboxContext = context;
}
public Executor getExecutor()
{
return _executor;
}
public void setExecutor(Executor executor)
{
Objects.requireNonNull(executor);
_executor = executor;
}
//@Override
public ClassLoader getClassLoader()
{
return _classLoader;
}
public void setClassLoader(ClassLoader loader)
{
Objects.requireNonNull(loader);
_classLoader = loader;
}
/*
public void setWorkerIdleTimeout(long timeout)
{
_workerIdleTimeout = timeout;
}
*/
public void setThreadMax(int max)
{
_threadMax = max;
}
public int getThreadMax()
{
return _threadMax;
}
/*
@Override
public OutboxDeliver createOutbox(Deliver deliver)
{
return _outboxFactory.createOutbox(deliver);
}
*/
@Override
public QueueDeliver build(Deliver deliver)
{
validateBuilder();
if (deliver == null) {
throw new IllegalArgumentException(L.l("'processors' is required"));
}
QueueRing queue = buildQueue();
Executor executor = createExecutor();
ClassLoader loader = getClassLoader();
// OutboxDeliver outbox = _outboxFactory.createOutbox(deliver);
WorkerDeliverSingleThread worker
= new WorkerDeliverSingleThread(deliver,
_outboxContext,
executor,
loader,
queue);
return new QueueDeliverImpl(queue, worker);
}
protected QueueRing buildQueue()
{
int initial = size();
int capacity = sizeMax();
if (initial < capacity && initial > 0) {
return new QueueRingResizing<>(initial, capacity);
}
else {
return new QueueRingFixed<>(capacity);
}
}
//@Override
public QueueRing buildQueue(CounterBuilder counterBuilder)
{
int initial = size();
int capacity = sizeMax();
if (initial < capacity && initial > 0) {
return new QueueRingResizing<>(initial, capacity, counterBuilder);
}
else {
return new QueueRingFixed<>(capacity, counterBuilder);
}
}
/*
public QueueService build(DeliverOutbox ...processors)
{
return buildMultiworker(processors);
}
*/
@Override
public QueueDeliver build(Supplier> factory,
int workerCount)
{
Objects.requireNonNull(factory);
validateBuilder();
if (workerCount <= 0) {
throw new IllegalArgumentException();
}
if (workerCount == 1) {
return build(factory.get());
}
QueueRing queueDeliver = buildQueue();
//Objects.requireNonNull(processors);
@SuppressWarnings("unchecked")
WorkerDeliver[] workers = new WorkerDeliver[workerCount];
Executor executor = createExecutor();
ClassLoader loader = getClassLoader();
for (int i = 0; i < workers.length; i++) {
Deliver deliver = factory.get();
workers[i] = new WorkerDeliverMultiThread(deliver,
_outboxContext,
executor, loader,
queueDeliver);
}
WorkerDeliver worker
= new WorkerDeliverMultiCoordinator<>(queueDeliver,
workers,
multiworkerOffset());
return new QueueDeliverImpl(queueDeliver, worker);
}
@Override
@SuppressWarnings("unchecked")
public QueueDeliver disruptor(Deliver ...deliver)
{
Objects.requireNonNull(deliver);
int count = deliver.length;
if (count == 0) {
throw new IllegalArgumentException();
}
if (count == 1) {
return build(deliver[0]);
}
CounterBuilder counter = CounterBuilder.create(count + 1);
QueueRing queue = buildQueue(counter);
// Executor executor = queueBuilder.createExecutor();
WorkerDeliver nextTask = WorkerDeliver.createNull();
WorkerDeliverDisruptor []workers = new WorkerDeliverDisruptor[count];
for (int i = count - 1; i >= 0; i--) {
boolean isTail = i == count - 1;
workers[i] = new WorkerDeliverDisruptor(deliver[i],
_outboxContext,
createExecutor(),
_classLoader,
queue,
i,
i + 1,
isTail,
nextTask);
nextTask = workers[i];
}
workers[count - 1].setHeadWorker(workers[0]);
return new QueueDeliverImpl(queue, workers[0]);
}
/*
public QueueService
buildSpawnTask(SpawnThreadManager threadManager)
{
validateBuilder();
return new QueueServiceSpawn(buildQueue(),
createBlockingExecutor(),
threadManager);
}
*/
//@Override
public Executor createExecutor()
{
Executor executor = _executor;
if (executor == null) {
ThreadPool threadPool = ThreadPool.current();
//executor = threadPool.getThrottleExecutor();
executor = threadPool;
}
return executor;
}
/*
private Executor createBlockingExecutor()
{
Executor executor = _executor;
if (executor == null) {
ThreadPool threadPool = ThreadPool.current();
executor = threadPool.throttleExecutor();
// executor = threadPool;
}
return executor;
}
*/
}
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