Package org.jgroups.protocols

Class BPING

  • All Implemented Interfaces:
    java.lang.Runnable
    public class BPING
extends PING
implements java.lang.Runnable
    Broadcast PING. Uses UDP broadcasts to discover initial membership. This protocol is useless in IPv6 environments, as IPv6 has no notion of broadcast addresses. Use IP multicasts instead (e.g. PING or MPING) when running in IPv6.
    Since:
    2.12
    Author:
    Bela Ban

    • Field Detail

      • dest

        protected java.lang.String dest

      • bind_port

        protected int bind_port

      • port_range

        protected int port_range

      • sock

        protected java.net.DatagramSocket sock

      • receiver

        protected volatile java.lang.Thread receiver

      • dest_addr

        protected java.net.InetAddress dest_addr

    • Constructor Detail

      • BPING

        public BPING()

    • Method Detail

      • getBindPort

        public int getBindPort()

      • setBindPort

        public void setBindPort​(int bind_port)

      • 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 Discovery
        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: Protocol
        This method is called on a JChannel.connect(String). Starts work. Protocols are connected and queues are ready to receive events. Will be called from bottom to top. This call will replace the START and START_OK events.
        Overrides:
        start in class Discovery
        Throws:
        java.lang.Exception - Thrown if protocol cannot be started successfully. This will cause the ProtocolStack to fail, so JChannel.connect(String) will throw an exception

      • stop

        public void stop()
        Description copied from class: Protocol
        This method is called on a JChannel.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 Discovery

      • run

        public void run()
        Specified by:
        run in interface java.lang.Runnable