applications/forwardingrules-manager/src/main/java/org/opendaylight/openflowplugin/applications/frm/impl/DeviceMastershipManager.java

   1 /**
   2  * Copyright (c) 2016 Pantheon Technologies s.r.o. 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.applications.frm.impl;
  10
  11 import com.google.common.annotations.VisibleForTesting;
  12 import java.util.concurrent.ConcurrentHashMap;
  13 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  15 import org.slf4j.Logger;
  16 import org.slf4j.LoggerFactory;
  17
  18 /**
  19  * Manager for clustering service registrations of {@link DeviceMastership}.
  20  */
  21 public class DeviceMastershipManager {
  22     private static final Logger LOG = LoggerFactory.getLogger(DeviceMastershipManager.class);
  23     private final ClusterSingletonServiceProvider clusterSingletonService;
  24     private final ConcurrentHashMap<NodeId, DeviceMastership> deviceMasterships = new ConcurrentHashMap();
  25
  26     public DeviceMastershipManager(final ClusterSingletonServiceProvider clusterSingletonService) {
  27         this.clusterSingletonService = clusterSingletonService;
  28     }
  29
  30     public void onDeviceConnected(final NodeId nodeId) {
  31         LOG.debug("FRM service registered for: {}", nodeId.getValue());
  32         final DeviceMastership mastership = new DeviceMastership(nodeId, clusterSingletonService);
  33         deviceMasterships.put(nodeId, mastership);
  34     }
  35
  36     public void onDeviceDisconnected(final NodeId nodeId) {
  37         final DeviceMastership mastership = deviceMasterships.remove(nodeId);
  38         if (mastership != null) {
  39             mastership.close();
  40         }
  41         LOG.debug("FRM service unregistered for: {}", nodeId.getValue());
  42     }
  43
  44     public boolean isDeviceMastered(final NodeId nodeId) {
  45         return deviceMasterships.get(nodeId) != null && deviceMasterships.get(nodeId).isDeviceMastered();
  46     }
  47
  48     @VisibleForTesting
  49     ConcurrentHashMap<NodeId, DeviceMastership> getDeviceMasterships() {
  50         return deviceMasterships;
  51     }
  52 }