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 Details

    • LOOPBACK

      public LOOPBACK()
  • Method Details

    • toString

      public 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 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
      offset -
      length -
      Throws:
      Exception
    • sendToSingleMember

      public void sendToSingleMember(Address dest, byte[] data, int offset, int length) throws 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
      offset -
      length -
      Throws:
      Exception
    • getInfo

      public String getInfo()
      Specified by:
      getInfo in class TP
    • postUnmarshalling

      public void postUnmarshalling(Message msg, Address dest, Address src, boolean multicast)
      Specified by:
      postUnmarshalling in class TP
    • postUnmarshallingList

      public void postUnmarshallingList(Message msg, Address dest, boolean multicast)
      Specified by:
      postUnmarshallingList in class TP
    • getName

      public String getName()
      Specified by:
      getName in class Protocol
    • init

      public void init() throws 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:
      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 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:
      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 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