Class LOOPBACK


  • public class LOOPBACK
    extends TP
    Makes copies of outgoing messages, swaps sender and receiver and sends the message back up the stack.
    • Constructor Detail

      • LOOPBACK

        public 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
      • destroy

        public void destroy()
        Description copied from class: Protocol
        This method is called on a Channel.close(). Does some cleanup; after the call the VM will terminate
        Overrides:
        destroy in class TP
      • 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
      • down

        public java.lang.Object down​(Event evt)
        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