Package org.jgroups.protocols

Class SimpleTCP

    • Field Detail

      • recv_buf_size

        protected int recv_buf_size

      • send_buf_size

        protected int send_buf_size

      • buffered_input_stream_size

        protected int buffered_input_stream_size

      • buffered_output_stream_size

        protected int buffered_output_stream_size

      • srv_sock

        protected java.net.ServerSocket srv_sock

      • connections

        protected final java.util.Map<java.net.SocketAddress,​SimpleTCP.Connection> connections

      • addr_table

        protected final java.util.Map<Address,​java.net.SocketAddress> addr_table

    • Constructor Detail

      • SimpleTCP

        public SimpleTCP()

    • Method Detail

      • supportsMulticasting

        public boolean supportsMulticasting()
        Description copied from class: TP
        Whether or not hardware multicasting is supported
        Specified by:
        supportsMulticasting in class TP

      • printAddressTable

        public java.lang.String printAddressTable()

      • sendMulticast

        public void sendMulticast​(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:
        sendMulticast in class TP
        Parameters:
        data - The data to be sent. This is not a copy, so don't modify it
        Throws:
        java.lang.Exception

      • sendUnicast

        public void sendUnicast​(PhysicalAddress dest,
                        byte[] data,
                        int offset,
                        int length)
                 throws java.lang.Exception
        Description copied from class: TP
        Send a unicast to 1 member. Note that the destination address is a *physical*, not a logical address
        Specified by:
        sendUnicast 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

      • 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

      • 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 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 TP

      • destroy

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

      • down

        public java.lang.Object down​(Event evt)
        Description copied from class: Protocol
        An event is to be sent down the stack. A protocol 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 protocol may need to add a header to it (or do nothing at all) before sending it down the stack using down_prot.down().
        Overrides:
        down in class TP

      • down

        public java.lang.Object down​(Message msg)
        Description copied from class: TP
        A message needs to be sent to a single member or all members
        Overrides:
        down in class TP

      • _down

        protected java.lang.Object _down​(Message msg)
                          throws java.lang.Exception
        Throws:
        java.lang.Exception

      • sendTo

        protected void sendTo​(Address dest,
                      byte[] buffer,
                      int offset,
                      int length)
               throws java.lang.Exception
        Throws:
        java.lang.Exception

      • getConnection

        protected SimpleTCP.Connection getConnection​(java.net.SocketAddress dest)
                                      throws java.lang.Exception
        Throws:
        java.lang.Exception