/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2010 Sun Microsystems, Inc.
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*/
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package com.sun.opends.sdk.ldap;
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import java.io.IOException;
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import com.sun.grizzly.TransportFactory;
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import com.sun.grizzly.nio.NIOTransportFactory;
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import com.sun.grizzly.nio.transport.TCPNIOTransport;
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import com.sun.grizzly.nio.transport.UDPNIOTransport;
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import com.sun.grizzly.threadpool.ThreadPoolConfig;
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import com.sun.opends.sdk.util.StaticUtils;
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/**
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* A static Grizzly transport that can be used by default globally in the SDK.
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*/
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public final class GlobalTransportFactory extends NIOTransportFactory
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{
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private static final GlobalTransportFactory INSTANCE = new GlobalTransportFactory();
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/**
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* Returns the global Grizzly transport factory.
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*
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* @return The global Grizzly transport factory.
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*/
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public static TransportFactory getInstance()
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{
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return INSTANCE;
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}
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/**
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* Sets the global Grizzly transport factory.
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*
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* @param factory
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* The global Grizzly transport factory.
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*/
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public static void setInstance(final TransportFactory factory)
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{
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throw new UnsupportedOperationException("not yet implemented");
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}
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private int selectors;
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private int linger = -1;
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private boolean tcpNoDelay = true;
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private boolean reuseAddress = true;
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private TCPNIOTransport globalTCPNIOTransport = null;
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private GlobalTransportFactory()
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{
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// Prevent instantiation.
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}
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/**
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* Close the {@link com.sun.grizzly.TransportFactory} and release all
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* resources.
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*/
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@Override
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public synchronized void close()
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{
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if (globalTCPNIOTransport != null)
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{
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try
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{
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globalTCPNIOTransport.stop();
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}
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catch (final IOException e)
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{
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StaticUtils.DEBUG_LOG
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.warning("Error shutting down Grizzly TCP NIO transport: " + e);
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}
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}
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super.close();
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}
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/**
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* Create instance of TCP {@link com.sun.grizzly.Transport}.
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*
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* @return instance of TCP {@link com.sun.grizzly.Transport}.
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*/
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@Override
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public synchronized TCPNIOTransport createTCPTransport()
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{
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if (globalTCPNIOTransport == null)
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{
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globalTCPNIOTransport = setupTransport(new TCPNIOTransport());
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globalTCPNIOTransport.setSelectorRunnersCount(selectors);
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globalTCPNIOTransport.setLinger(linger);
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globalTCPNIOTransport.setTcpNoDelay(tcpNoDelay);
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globalTCPNIOTransport.setReuseAddress(reuseAddress);
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try
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{
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globalTCPNIOTransport.start();
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}
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catch (final IOException e)
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{
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throw new RuntimeException(
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"Unable to create default connection factory provider", e);
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}
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}
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return globalTCPNIOTransport;
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}
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/**
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* Creating an UDP transport is unsupported with this factory. A {@code
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* UnsupportedOperationException} will be thrown when this method is called.
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*
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* @return This method will always throw {@code UnsupportedOperationException}
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* .
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*/
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@Override
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public UDPNIOTransport createUDPTransport()
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{
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throw new UnsupportedOperationException();
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}
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@Override
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public void initialize()
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{
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final int cpus = Runtime.getRuntime().availableProcessors();
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int threads = Math.max(5, (cpus / 2) - 1);
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selectors = Math.max(2, cpus / 8);
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final String threadsStr = System
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.getProperty("org.opends.sdk.ldap.transport.threads");
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if (threadsStr != null)
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{
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threads = Integer.parseInt(threadsStr);
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}
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final String selectorsStr = System
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.getProperty("org.opends.sdk.ldap.transport.selectors");
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if (threadsStr != null)
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{
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selectors = Integer.parseInt(selectorsStr);
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}
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ThreadPoolConfig.DEFAULT.setCorePoolSize(threads);
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ThreadPoolConfig.DEFAULT.setMaxPoolSize(threads);
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ThreadPoolConfig.DEFAULT.setPoolName("OpenDS SDK Worker(Grizzly)");
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final String lingerStr = System
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.getProperty("org.opends.sdk.ldap.transport.linger");
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if (lingerStr != null)
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{
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linger = Integer.parseInt(lingerStr);
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}
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final String tcpNoDelayStr = System
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.getProperty("org.opends.sdk.ldap.transport.tcpNoDelay");
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if (tcpNoDelayStr != null)
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{
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tcpNoDelay = Integer.parseInt(tcpNoDelayStr) != 0;
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}
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final String reuseAddressStr = System
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.getProperty("org.opends.sdk.ldap.transport.reuseAddress");
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if (reuseAddressStr != null)
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{
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reuseAddress = Integer.parseInt(reuseAddressStr) != 0;
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}
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super.initialize();
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}
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}
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