Package org.jgroups.protocols

Class RATE

  • All Implemented Interfaces:
    Lifecycle
    public class RATE
extends Protocol
    Measures incoming and outgoing rates: messages/sec, bytes/sec. This is done per destination and total.
    Since:
    5.3.5
    Author:
    Bela Ban

    • Field Detail

      • measure_serialized_size

        protected boolean measure_serialized_size

      • interval

        protected long interval

      • history_size

        protected int history_size

      • current_send_rate

        protected volatile long current_send_rate

      • highest_send_rate

        protected volatile long highest_send_rate

      • current_receive_rate

        protected volatile long current_receive_rate

      • highest_receive_rate

        protected volatile long highest_receive_rate

      • out

        protected final java.util.concurrent.atomic.LongAdder out

      • in

        protected final java.util.concurrent.atomic.LongAdder in

      • send_history

        protected BoundedList<java.lang.Long> send_history

      • recv_history

        protected BoundedList<java.lang.Long> recv_history

      • f

        protected java.util.concurrent.Future<?> f

      • task

        protected final java.lang.Runnable task

    • Constructor Detail

      • RATE

        public RATE()

    • Method Detail

      • measureSerializedSize

        public boolean measureSerializedSize()

      • measureSerializedSize

        public RATE measureSerializedSize​(boolean b)

      • interval

        public long interval()

      • interval

        public RATE interval​(long i)

      • currentSendRate

        public java.lang.String currentSendRate()

      • highestSendRate

        public java.lang.String highestSendRate()

      • currentReceiveRate

        public java.lang.String currentReceiveRate()

      • highestReceiveRate

        public java.lang.String highestReceiveRate()

      • init

        public void init()
          throws java.lang.Exception
        Description copied from class: Protocol
        Called after a protocol has been created and before the protocol is started. Attributes are already set. Other protocols are not yet connected and events cannot yet be sent.
        Specified by:
        init in interface Lifecycle
        Overrides:
        init in class Protocol
        Throws:
        java.lang.Exception - Thrown if protocol cannot be initialized successfully. This will cause the ProtocolStack to fail, so the 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 ready to receive events. Will be called from bottom to top.
        Specified by:
        start in interface Lifecycle
        Overrides:
        start in class Protocol
        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

      • 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

      • printSendHistory

        public java.lang.String printSendHistory()

      • printReceiveHistory

        public java.lang.String printReceiveHistory()

      • size

        protected long size​(Message msg)