How to use

setSelectorThreadPoolConfig

method

in

org.glassfish.grizzly.nio.transport.TCPNIOTransportBuilder

  transportBuilder.getSelectorThreadPoolConfig().setMaxPoolSize(1).setCorePoolSize(1);
} else {
  transportBuilder.setSelectorThreadPoolConfig(selectorThreadPoolConfig);

      useWorkerThreadStrategy ? Math.max(2, cpus / 4) : Math.max(5, (cpus / 2) - 1);
builder.setSelectorThreadPoolConfig(ThreadPoolConfig.defaultConfig().setCorePoolSize(
    selectorThreadCount).setMaxPoolSize(selectorThreadCount).setPoolName(
    "OpenDJ LDAP SDK Grizzly selector thread"));

if (sharedTransport) {
  transportBuilder.setSelectorThreadPoolConfig(ThreadPoolConfig.defaultConfig());
} else {
  transportBuilder.setSelectorThreadPoolConfig(
      ThreadPoolConfig.defaultConfig().setMaxPoolSize(1).setCorePoolSize(1));
  TCPNIOTransport transport = transportBuilder.build();
transportBuilder.setSelectorThreadPoolConfig(selectorThreadPoolConfig);

if (sharedTransport) {
  transportBuilder.setSelectorThreadPoolConfig(ThreadPoolConfig.defaultConfig());
} else {
  transportBuilder.setSelectorThreadPoolConfig(
      ThreadPoolConfig.defaultConfig().setMaxPoolSize(1).setCorePoolSize(1));
  TCPNIOTransport transport = transportBuilder.build();
transportBuilder.setSelectorThreadPoolConfig(selectorThreadPoolConfig);

@Test
public void testCustomThreadPoolSameThreadStrategy() throws Exception {
  final int poolSize = Math.max(Runtime.getRuntime().availableProcessors()/2, 1);
  final ThreadPoolConfig poolCfg = ThreadPoolConfig.defaultConfig();
  poolCfg.setCorePoolSize(poolSize).setMaxPoolSize(poolSize);
  final TCPNIOTransport tcpTransport = TCPNIOTransportBuilder.newInstance()
      .setReuseAddress(true)
      .setIOStrategy(SameThreadIOStrategy.getInstance())
      .setSelectorThreadPoolConfig(poolCfg)
      .setWorkerThreadPoolConfig(null)
      .build();
  try {
    tcpTransport.start();
  } finally {
    tcpTransport.shutdownNow();
  }
}

transportBuilder.setSelectorThreadPoolConfig(selectorThreadPoolConfig);

  @Test
  public void testCustomThreadPoolWorkerThreadStrategy() throws Exception {

    final int selectorPoolSize =  Math.max(Runtime.getRuntime().availableProcessors()/2, 1);
    final ThreadPoolConfig selectorPoolCfg = ThreadPoolConfig.defaultConfig();
    selectorPoolCfg.setCorePoolSize(selectorPoolSize).setMaxPoolSize(selectorPoolSize);

    final int workerPoolSize = Runtime.getRuntime().availableProcessors() * 2 ;
    final ThreadPoolConfig workerPoolCfg = ThreadPoolConfig.defaultConfig();
    workerPoolCfg.setCorePoolSize(workerPoolSize).setMaxPoolSize(workerPoolSize);

    final TCPNIOTransport tcpTransport = TCPNIOTransportBuilder.newInstance()
        .setReuseAddress(true)
        .setIOStrategy(WorkerThreadIOStrategy.getInstance())
        .setSelectorThreadPoolConfig(selectorPoolCfg)
        .setWorkerThreadPoolConfig(workerPoolCfg)
        .build();
    try {
      tcpTransport.start();
    } finally {
      tcpTransport.shutdownNow();
    }
  }    
}