org.glassfish.grizzly.strategies.AbstractIOStrategy Maven / Gradle / Ivy
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package org.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 org.glassfish.grizzly.*;
import org.glassfish.grizzly.asyncqueue.AsyncQueue;
import org.glassfish.grizzly.localization.LogMessages;
import org.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);
}
}
}
}