opendaylight/commons/protocol-framework/src/main/java/org/opendaylight/protocol/framework/ReconnectImmediatelyStrategy.java

   1 /*
   2  * Copyright (c) 2013 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.protocol.framework;
   9
  10 import io.netty.util.concurrent.EventExecutor;
  11 import io.netty.util.concurrent.Future;
  12
  13 import javax.annotation.concurrent.ThreadSafe;
  14
  15 import org.slf4j.Logger;
  16 import org.slf4j.LoggerFactory;
  17
  18 import com.google.common.base.Preconditions;
  19
  20 /**
  21  * Utility ReconnectStrategy singleton, which will cause the reconnect process
  22  * to immediately schedule a reconnection attempt.
  23  */
  24 @ThreadSafe
  25 public final class ReconnectImmediatelyStrategy implements ReconnectStrategy {
  26     private static final Logger LOG = LoggerFactory.getLogger(ReconnectImmediatelyStrategy.class);
  27     private final EventExecutor executor;
  28     private final int timeout;
  29
  30     public ReconnectImmediatelyStrategy(final EventExecutor executor, final int timeout) {
  31         Preconditions.checkArgument(timeout >= 0);
  32         this.executor = Preconditions.checkNotNull(executor);
  33         this.timeout = timeout;
  34     }
  35
  36     @Override
  37     public Future<Void> scheduleReconnect(final Throwable cause) {
  38         LOG.debug("Connection attempt failed", cause);
  39         return executor.newSucceededFuture(null);
  40     }
  41
  42     @Override
  43     public void reconnectSuccessful() {
  44         // Nothing to do
  45     }
  46
  47     @Override
  48     public int getConnectTimeout() {
  49         return timeout;
  50     }
  51 }