org.jgroups.protocols.TCP_NIO Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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package org.jgroups.protocols;

import org.jgroups.Address;
import org.jgroups.PhysicalAddress;
import org.jgroups.annotations.Experimental;
import org.jgroups.annotations.ManagedAttribute;
import org.jgroups.annotations.Property;
import org.jgroups.annotations.Unsupported;
import org.jgroups.blocks.BasicConnectionTable;
import org.jgroups.blocks.ConnectionTableNIO;

import java.net.InetAddress;
import java.util.Collection;

/**
 * Transport using NIO
 * @author Scott Marlow
 * @author Alex Fu
 * @author Bela Ban
 */
@Experimental @Unsupported
public class TCP_NIO extends BasicTCP implements BasicConnectionTable.Receiver
{

    /*
    * (non-Javadoc)
    *
    * @see org.jgroups.protocols.TCP#getConnectionTable(long, long)
    */
   protected ConnectionTableNIO getConnectionTable(long ri, long cet,
                                                   InetAddress b_addr, InetAddress bc_addr,
                                                   int external_port, int s_port, int e_port) throws Exception {
       ConnectionTableNIO retval=null;
       if (ri == 0 && cet == 0) {
           retval = new ConnectionTableNIO(this, b_addr, bc_addr, external_port, s_port, e_port, false );
       }
       else {
           if (ri == 0) {
               ri = 5000;
               if(log.isWarnEnabled()) log.warn("reaper_interval was 0, set it to " + ri);
           }
           if (cet == 0) {
               cet = 1000 * 60 * 5;
               if(log.isWarnEnabled()) log.warn("conn_expire_time was 0, set it to " + cet);
           }
           retval = new ConnectionTableNIO(this, b_addr, bc_addr, external_port, s_port, e_port, ri, cet, false);
       }
       retval.setThreadFactory(getThreadFactory());
       retval.setProcessorMaxThreads(getProcessorMaxThreads());
       retval.setProcessorQueueSize(getProcessorQueueSize());
       retval.setProcessorMinThreads(getProcessorMinThreads());
       retval.setProcessorKeepAliveTime(getProcessorKeepAliveTime());
       retval.setProcessorThreads(getProcessorThreads());
       retval.start();
       return retval;
   }

    public String printConnections()     {return ct.toString();}

    protected PhysicalAddress getPhysicalAddress() {
        return ct != null? (PhysicalAddress)ct.getLocalAddress() : null;
    }

   public void send(Address dest, byte[] data, int offset, int length) throws Exception {
      ct.send(dest, data, offset, length);
   }

   public void start() throws Exception {
       ct=getConnectionTable(reaper_interval,conn_expire_time,bind_addr,external_addr,external_port,bind_port,bind_port+port_range);
       ct.setUseSendQueues(use_send_queues);
       // ct.addConnectionListener(this);
       ct.setReceiveBufferSize(recv_buf_size);
       ct.setSendBufferSize(send_buf_size);
       ct.setSocketConnectionTimeout(sock_conn_timeout);
       ct.setPeerAddressReadTimeout(peer_addr_read_timeout);
       ct.setTcpNodelay(tcp_nodelay);
       ct.setLinger(linger);
       super.start();
   }

   public void retainAll(Collection members) {
      ct.retainAll(members);
   }

   public void stop() {
       ct.stop();
       super.stop();
   }

   public int getReaderThreads() { return reader_threads; }
   public int getWriterThreads() { return writer_threads; }
   public int getProcessorThreads() { return processor_threads; }
   public int getProcessorMinThreads() { return processor_minThreads;}
   public int getProcessorMaxThreads() { return processor_maxThreads;}
   public int getProcessorQueueSize() { return processor_queueSize; }
   public long getProcessorKeepAliveTime() { return processor_keepAliveTime; }
   @ManagedAttribute
   public int getOpenConnections()      {return ct.getNumConnections();}


   @Property
   private int reader_threads= 3;

   @Property
   private int writer_threads= 3;

   @Property
   private int processor_threads= 5;                    // PooledExecutor.createThreads()
   @Property
   private int processor_minThreads= 5;                 // PooledExecutor.setMinimumPoolSize()
   @Property
   private int processor_maxThreads= 5;                 // PooledExecutor.setMaxThreads()
   @Property
   private int processor_queueSize=100;                   // Number of queued requests that can be pending waiting
                                                            // for a background thread to run the request.
   @Property
   private long processor_keepAliveTime= Long.MAX_VALUE; // PooledExecutor.setKeepAliveTime( milliseconds);
                                                            // negative value used to mean (before 2.5 release) to wait forever,
                                                            // instead set to Long.MAX_VALUE to keep alive forever
   private ConnectionTableNIO ct;
}