openflowplugin-api/src/main/java/org/opendaylight/openflowplugin/api/openflow/md/queue/WaterMarkListenerImpl.java

   1 /*
   2  * Copyright (c) 2015 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
   9 package org.opendaylight.openflowplugin.api.openflow.md.queue;
  10
  11 import com.google.common.base.Preconditions;
  12 import org.opendaylight.openflowjava.protocol.api.connection.ConnectionAdapter;
  13 import org.slf4j.Logger;
  14 import org.slf4j.LoggerFactory;
  15
  16 public class WaterMarkListenerImpl implements WaterMarkListener {
  17
  18     private static final Logger LOG = LoggerFactory
  19             .getLogger(WaterMarkListenerImpl.class);
  20
  21     private ConnectionAdapter connectionAdapter;
  22
  23     public WaterMarkListenerImpl(ConnectionAdapter connectionAdapter) {
  24         this.connectionAdapter = Preconditions.checkNotNull(connectionAdapter);
  25     }
  26
  27     /*
  28      * (non-Javadoc)
  29      *
  30      * @see org.opendaylight.openflowplugin.api.openflow.md.queue.QueueListener#
  31      * onHighWaterMark
  32      * (org.opendaylight.openflowjava.protocol.api.connection.ConnectionAdapter)
  33      */
  34     @Override
  35     public void onHighWaterMark() {
  36         connectionAdapter.setAutoRead(false);
  37         LOG.debug("AutoRead is set on false: {}", connectionAdapter.getRemoteAddress());
  38     }
  39
  40     /*
  41      * (non-Javadoc)
  42      *
  43      * @see org.opendaylight.openflowplugin.api.openflow.md.queue.QueueListener#
  44      * onLowWaterMark
  45      * (org.opendaylight.openflowjava.protocol.api.connection.ConnectionAdapter)
  46      */
  47     @Override
  48     public void onLowWaterMark() {
  49         connectionAdapter.setAutoRead(true);
  50         LOG.debug("AutoRead is set on true: {}", connectionAdapter.getRemoteAddress());
  51     }
  52 }