opendaylight/md-sal/cds-access-client/src/main/java/org/opendaylight/controller/cluster/access/client/ReconnectingClientConnection.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 akka.actor.ActorRef;
  11 import java.util.Map.Entry;
  12 import org.opendaylight.controller.cluster.access.concepts.Request;
  13 import org.opendaylight.controller.cluster.access.concepts.RequestEnvelope;
  14 import org.slf4j.Logger;
  15 import org.slf4j.LoggerFactory;
  16
  17 /**
  18  * An {@link AbstractClientConnection} which is being reconnected after having timed out.
  19  *
  20  * @author Robert Varga
  21  *
  22  * @param <T> {@link BackendInfo} type
  23  */
  24 public final class ReconnectingClientConnection<T extends BackendInfo> extends AbstractReceivingClientConnection<T> {
  25     private static final Logger LOG = LoggerFactory.getLogger(ReconnectingClientConnection.class);
  26
  27     ReconnectingClientConnection(final ConnectedClientConnection<T> oldConnection) {
  28         super(oldConnection);
  29     }
  30
  31     @Override
  32     ClientActorBehavior<T> reconnectConnection(final ClientActorBehavior<T> current) {
  33         // Intentional no-op
  34         LOG.debug("Skipping reconnect of already-reconnecting connection {}", this);
  35         return current;
  36     }
  37
  38     @Override
  39     Entry<ActorRef, RequestEnvelope> prepareForTransmit(final Request<?, ?> req) {
  40         // This is guarded by remoteMaxMessages() == 0
  41         throw new UnsupportedOperationException("Attempted to transmit on a reconnecting connection");
  42     }
  43
  44     @Override
  45     int remoteMaxMessages() {
  46         return 0;
  47     }
  48 }