opendaylight/md-sal/cds-access-client/src/main/java/org/opendaylight/controller/cluster/access/client/ReconnectForwarder.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.cluster.access.client;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 /**
  13  * Forwarder class responsible for routing requests from the previous connection incarnation back to the originator,
  14  * which can then convert them as appropriate.
  15  *
  16  * @author Robert Varga
  17  */
  18 public abstract class ReconnectForwarder {
  19     // Visible for subclass method handle
  20     private final AbstractReceivingClientConnection<?> successor;
  21
  22     protected ReconnectForwarder(final AbstractReceivingClientConnection<?> successor) {
  23         this.successor = requireNonNull(successor);
  24     }
  25
  26     protected final void sendToSuccessor(final ConnectionEntry entry) {
  27         successor.sendRequest(entry.getRequest(), entry.getCallback());
  28     }
  29
  30     protected final void replayToSuccessor(final ConnectionEntry entry) {
  31         successor.enqueueRequest(entry.getRequest(), entry.getCallback(), entry.getEnqueuedTicks());
  32     }
  33
  34     protected abstract void forwardEntry(ConnectionEntry entry, long now);
  35
  36     protected abstract void replayEntry(ConnectionEntry entry, long now);
  37
  38     final AbstractReceivingClientConnection<?> successor() {
  39         return successor;
  40     }
  41 }