Class DUPL

  • All Implemented Interfaces:
    Lifecycle

    public class DUPL
    extends Protocol
    Duplicates outgoing or incoming messages by copying them
    Author:
    Bela Ban
    • Field Detail

      • incoming_copies

        protected int incoming_copies
      • outgoing_copies

        protected int outgoing_copies
      • copy_unicast_msgs

        protected boolean copy_unicast_msgs
      • copy_multicast_msgs

        protected boolean copy_multicast_msgs
    • Constructor Detail

      • DUPL

        public DUPL()
      • DUPL

        public DUPL​(boolean copy_multicast_msgs,
                    boolean copy_unicast_msgs,
                    int incoming_copies,
                    int outgoing_copies)
    • Method Detail

      • getIncomingCopies

        public int getIncomingCopies()
      • setIncomingCopies

        public DUPL setIncomingCopies​(int incoming_copies)
      • getOutgoingCopies

        public int getOutgoingCopies()
      • setOutgoingCopies

        public DUPL setOutgoingCopies​(int outgoing_copies)
      • isCopyUnicastMsgs

        public boolean isCopyUnicastMsgs()
      • setCopyUnicastMsgs

        public DUPL setCopyUnicastMsgs​(boolean copy_unicast_msgs)
      • isCopyMulticastMsgs

        public boolean isCopyMulticastMsgs()
      • setCopyMulticastMsgs

        public DUPL setCopyMulticastMsgs​(boolean copy_multicast_msgs)
      • down

        public java.lang.Object down​(Message msg)
        Description copied from class: Protocol
        A message is sent down the stack. Protocols may examine the message and do something (e.g. add a header) with it, before passing it down.
        Overrides:
        down in class Protocol
      • up

        public java.lang.Object up​(Message msg)
        Description copied from class: Protocol
        A single message was received. Protocols may examine the message and do something (e.g. add a header) with it before passing it up.
        Overrides:
        up in class Protocol
      • up

        public void up​(MessageBatch batch)
        Description copied from class: Protocol
        Sends up a multiple messages in a MessageBatch. The sender of the batch is always the same, and so is the destination (null == multicast messages). Messages in a batch can be OOB messages, regular messages, or mixed messages, although the transport itself will create initial MessageBatches that contain only either OOB or regular messages.

        The default processing below sends messages up the stack individually, based on a matching criteria (calling Protocol.accept(Message)), and - if true - calls Protocol.up(org.jgroups.Event) for that message and removes the message. If the batch is not empty, it is passed up, or else it is dropped.

        Subclasses should check if there are any messages destined for them (e.g. using MessageBatch.iterator(Predicate)), then possibly remove and process them and finally pass the batch up to the next protocol. Protocols can also modify messages in place, e.g. ENCRYPT could decrypt all encrypted messages in the batch, not remove them, and pass the batch up when done.

        Overrides:
        up in class Protocol
        Parameters:
        batch - The message batch