Package org.jgroups.protocols

Class SHARED_LOOPBACK

  • public class SHARED_LOOPBACK
extends TP
    Loopback transport shared by all channels within the same VM. Property for testing is that no messages are lost. Allows us to test various protocols (with ProtocolTester) at maximum speed.
    Version:
    $Id: SHARED_LOOPBACK.java,v 1.4.2.1 2008/05/22 13:23:06 belaban Exp $
    Author:
    Bela Ban

    • Constructor Detail

      • SHARED_LOOPBACK

        public SHARED_LOOPBACK()

    • Method Detail

      • toString

        public java.lang.String toString()
        Description copied from class: TP
        debug only
        Overrides:
        toString in class TP

      • sendToAllMembers

        public void sendToAllMembers​(byte[] data,
                             int offset,
                             int length)
                      throws java.lang.Exception
        Description copied from class: TP
        Send to all members in the group. UDP would use an IP multicast message, whereas TCP would send N messages, one for each member
        Specified by:
        sendToAllMembers in class TP
        Parameters:
        data - The data to be sent. This is not a copy, so don't modify it
        Throws:
        java.lang.Exception

      • sendToSingleMember

        public void sendToSingleMember​(Address dest,
                               byte[] data,
                               int offset,
                               int length)
                        throws java.lang.Exception
        Description copied from class: TP
        Send to all members in the group. UDP would use an IP multicast message, whereas TCP would send N messages, one for each member
        Specified by:
        sendToSingleMember in class TP
        Parameters:
        dest - Must be a non-null unicast address
        data - The data to be sent. This is not a copy, so don't modify it
        Throws:
        java.lang.Exception

      • getInfo

        public java.lang.String getInfo()
        Specified by:
        getInfo in class TP

      • getName

        public java.lang.String getName()
        Specified by:
        getName in class Protocol

      • init

        public void init()
          throws java.lang.Exception
        Description copied from class: Protocol
        Called after instance has been created (null constructor) and before protocol is started. Properties are already set. Other protocols are not yet connected and events cannot yet be sent.
        Overrides:
        init in class TP
        Throws:
        java.lang.Exception - Thrown if protocol cannot be initialized successfully. This will cause the ProtocolStack to fail, so the channel constructor will throw an exception

      • start

        public void start()
           throws java.lang.Exception
        Description copied from class: TP
        Creates the unicast and multicast sockets and starts the unicast and multicast receiver threads
        Overrides:
        start in class TP
        Throws:
        java.lang.Exception - Thrown if protocol cannot be started successfully. This will cause the ProtocolStack to fail, so Channel.connect(String) will throw an exception

      • stop

        public void stop()
        Description copied from class: Protocol
        This method is called on a Channel.disconnect(). Stops work (e.g. by closing multicast socket). Will be called from top to bottom. This means that at the time of the method invocation the neighbor protocol below is still working. This method will replace the STOP, STOP_OK, CLEANUP and CLEANUP_OK events. The ProtocolStack guarantees that when this method is called all messages in the down queue will have been flushed
        Overrides:
        stop in class TP

      • down

        public java.lang.Object down​(Event evt)
        Description copied from class: TP
        Caller by the layer above this layer. Usually we just put this Message into the send queue and let one or more worker threads handle it. A worker thread then removes the Message from the send queue, performs a conversion and adds the modified Message to the send queue of the layer below it, by calling down()).
        Overrides:
        down in class TP