com.pdd.pop.ext.glassfish.grizzly.strategies.AbstractIOStrategy Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010-2013 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.pdd.pop.ext.glassfish.grizzly.strategies;
import java.io.IOException;
import java.util.EnumSet;
import java.util.concurrent.Executor;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.pdd.pop.ext.glassfish.grizzly.*;
import com.pdd.pop.ext.glassfish.grizzly.asyncqueue.AsyncQueue;
import com.pdd.pop.ext.glassfish.grizzly.localization.LogMessages;
import com.pdd.pop.ext.glassfish.grizzly.threadpool.ThreadPoolConfig;
/**
*
* @author oleksiys
*/
public abstract class AbstractIOStrategy implements IOStrategy {
private final static EnumSet READ_WRITE_EVENT_SET =
EnumSet.of(IOEvent.READ, IOEvent.WRITE);
private final static EnumSet WORKER_THREAD_EVENT_SET =
EnumSet.of(IOEvent.READ, IOEvent.CLOSED);
protected final static IOEventLifeCycleListener ENABLE_INTEREST_LIFECYCLE_LISTENER =
new EnableInterestLifeCycleListener();
// ----------------------------- Methods from WorkerThreadPoolConfigProducer
@Override
public ThreadPoolConfig createDefaultWorkerPoolConfig(final Transport transport) {
final ThreadPoolConfig config = ThreadPoolConfig.defaultConfig().copy();
final int coresCount = Runtime.getRuntime().availableProcessors();
config.setPoolName("Grizzly-worker");
config.setCorePoolSize(coresCount * 2);
config.setMaxPoolSize(coresCount * 2);
config.setMemoryManager(transport.getMemoryManager());
return config;
}
// ------------------------------------------------------- Public Methods
@Override
public final boolean executeIoEvent(final Connection connection,
final IOEvent ioEvent) throws IOException {
return executeIoEvent(connection, ioEvent, true);
}
@Override
public Executor getThreadPoolFor(final Connection connection,
final IOEvent ioEvent) {
return WORKER_THREAD_EVENT_SET.contains(ioEvent) ?
connection.getTransport().getWorkerThreadPool() :
null;
}
// ------------------------------------------------------- Protected Methods
protected static boolean isReadWrite(final IOEvent ioEvent) {
return READ_WRITE_EVENT_SET.contains(ioEvent);
}
protected static void fireIOEvent(final Connection connection,
final IOEvent ioEvent,
final IOEventLifeCycleListener listener,
final Logger logger) {
try {
connection.getTransport().fireIOEvent(ioEvent, connection, listener);
} catch (Exception e) {
logger.log(Level.WARNING, LogMessages.WARNING_GRIZZLY_IOSTRATEGY_UNCAUGHT_EXCEPTION(), e);
connection.closeSilently();
}
}
// ---------------------------------------------------------- Nested Classes
private final static class EnableInterestLifeCycleListener
extends IOEventLifeCycleListener.Adapter {
@Override
public void onReregister(final Context context) throws IOException {
onComplete(context, null);
}
@Override
public void onComplete(final Context context, final Object data) throws IOException {
final IOEvent ioEvent = context.getIoEvent();
final Connection connection = context.getConnection();
if (AsyncQueue.EXPECTING_MORE_OPTION.equals(data)) {
connection.simulateIOEvent(ioEvent);
} else {
connection.enableIOEvent(ioEvent);
}
}
}
}