Class DUPL


  • public class DUPL
    extends Protocol
    Duplicates outgoing or incoming messages by copying them
    Version:
    $Id: DUPL.java,v 1.3.2.2 2008/06/09 09:41:19 belaban Exp $
    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

      • getName

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

        public boolean setProperties​(java.util.Properties props)
        Description copied from class: Protocol
        Configures the protocol initially. A configuration string consists of name=value items, separated by a ';' (semicolon), e.g.:
         "loopback=false;unicast_inport=4444"
         
        Overrides:
        setProperties in class Protocol
      • down

        public java.lang.Object down​(Event evt)
        Description copied from class: Protocol
        An event is to be sent down the stack. The layer may want to examine its type and perform some action on it, depending on the event's type. If the event is a message MSG, then the layer may need to add a header to it (or do nothing at all) before sending it down the stack using down_prot.down(). In case of a GET_ADDRESS event (which tries to retrieve the stack's address from one of the bottom layers), the layer may need to send a new response event back up the stack using up_prot.up().
        Overrides:
        down in class Protocol
      • up

        public java.lang.Object up​(Event evt)
        Description copied from class: Protocol
        An event was received from the layer below. Usually the current layer will want to examine the event type and - depending on its type - perform some computation (e.g. removing headers from a MSG event type, or updating the internal membership list when receiving a VIEW_CHANGE event). Finally the event is either a) discarded, or b) an event is sent down the stack using down_prot.down() or c) the event (or another event) is sent up the stack using up_prot.up().
        Overrides:
        up in class Protocol