Package org.jgroups.protocols

Class SHUFFLE

java.lang.Object
org.jgroups.stack.Protocol
org.jgroups.protocols.SHUFFLE
public class SHUFFLE extends Protocol
Reorders messages by buffering them and shuffling the result after TIMEOUT ms.
Author:
Bela Ban

  • Field Details

    • timer

      protected TimeScheduler timer

    • up_msgs

      protected final List<Message> up_msgs

    • down_msgs

      protected final List<Message> down_msgs

    • task

      protected Future<?> task

    • up

      protected boolean up

    • down

      protected boolean down

    • max_size

      protected int max_size

    • max_time

      protected long max_time

  • Constructor Details

    • SHUFFLE

      public SHUFFLE()

  • Method Details

    • isUp

      public boolean isUp()

    • setUp

      public void setUp(boolean up)

    • isDown

      public boolean isDown()

    • setDown

      public void setDown(boolean down)

    • getMaxSize

      public int getMaxSize()

    • setMaxSize

      public void setMaxSize(int max_size)

    • getMaxTime

      public long getMaxTime()

    • setMaxTime

      public void setMaxTime(long max_time)

    • 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 Protocol
      Throws:
      Exception - Thrown if protocol cannot be initialized successfully. This will cause the ProtocolStack to fail, so the channel constructor will throw an exception

    • up

      public 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

    • down

      public 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