openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/statistics/StatisticsGatheringUtils.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.impl.statistics;
  10
  11 import com.google.common.base.Function;
  12 import com.google.common.util.concurrent.Futures;
  13 import com.google.common.util.concurrent.JdkFutureAdapters;
  14 import com.google.common.util.concurrent.ListenableFuture;
  15 import java.util.List;
  16 import java.util.Map;
  17 import javax.annotation.Nullable;
  18 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  19 import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
  20 import org.opendaylight.openflowplugin.api.openflow.registry.flow.DeviceFlowRegistry;
  21 import org.opendaylight.openflowplugin.api.openflow.registry.flow.FlowDescriptor;
  22 import org.opendaylight.openflowplugin.api.openflow.registry.flow.FlowHash;
  23 import org.opendaylight.openflowplugin.impl.registry.flow.FlowDescriptorFactory;
  24 import org.opendaylight.openflowplugin.impl.registry.flow.FlowHashFactory;
  25 import org.opendaylight.openflowplugin.impl.statistics.services.dedicated.StatisticsGatheringService;
  26 import org.opendaylight.openflowplugin.impl.util.FlowUtil;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.Meter;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.MeterBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.MeterKey;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.TableKey;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowKey;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowsStatisticsUpdate;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapList;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.FlowTableStatisticsData;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.FlowTableStatisticsUpdate;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.flow.table.and.statistics.map.FlowTableAndStatisticsMap;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.flow.table.statistics.FlowTableStatistics;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.flow.table.statistics.FlowTableStatisticsBuilder;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.port.rev130925.queues.Queue;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.port.rev130925.queues.QueueKey;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.GroupDescStatsUpdated;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.GroupStatisticsUpdated;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.NodeGroupStatistics;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.NodeGroupStatisticsBuilder;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.group.statistics.GroupStatistics;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.group.statistics.GroupStatisticsBuilder;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.GroupId;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.desc.stats.reply.GroupDescStats;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.statistics.reply.GroupStats;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.Group;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.GroupBuilder;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.GroupKey;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnectorKey;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.MeterConfigStatsUpdated;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.MeterStatisticsUpdated;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.NodeMeterStatistics;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.NodeMeterStatisticsBuilder;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.nodes.node.meter.MeterStatistics;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.nodes.node.meter.MeterStatisticsBuilder;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.types.rev130918.MeterId;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.types.rev130918.meter.config.stats.reply.MeterConfigStats;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.types.rev130918.meter.statistics.reply.MeterStats;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MultipartType;
  75 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MultipartReply;
  76 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.FlowCapableNodeConnectorStatisticsData;
  77 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.NodeConnectorStatisticsUpdate;
  78 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.flow.capable.node.connector.statistics.FlowCapableNodeConnectorStatistics;
  79 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.flow.capable.node.connector.statistics.FlowCapableNodeConnectorStatisticsBuilder;
  80 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.node.connector.statistics.and.port.number.map.NodeConnectorStatisticsAndPortNumberMap;
  81 import org.opendaylight.yang.gen.v1.urn.opendaylight.queue.statistics.rev131216.FlowCapableNodeConnectorQueueStatisticsData;
  82 import org.opendaylight.yang.gen.v1.urn.opendaylight.queue.statistics.rev131216.FlowCapableNodeConnectorQueueStatisticsDataBuilder;
  83 import org.opendaylight.yang.gen.v1.urn.opendaylight.queue.statistics.rev131216.QueueStatisticsUpdate;
  84 import org.opendaylight.yang.gen.v1.urn.opendaylight.queue.statistics.rev131216.flow.capable.node.connector.queue.statistics.FlowCapableNodeConnectorQueueStatistics;
  85 import org.opendaylight.yang.gen.v1.urn.opendaylight.queue.statistics.rev131216.flow.capable.node.connector.queue.statistics.FlowCapableNodeConnectorQueueStatisticsBuilder;
  86 import org.opendaylight.yang.gen.v1.urn.opendaylight.queue.statistics.rev131216.queue.id.and.statistics.map.QueueIdAndStatisticsMap;
  87 import org.opendaylight.yangtools.yang.binding.DataObject;
  88 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  89 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
  90 import org.opendaylight.yangtools.yang.common.RpcResult;
  91 import org.slf4j.Logger;
  92 import org.slf4j.LoggerFactory;
  93
  94 /**
  95  * Created by Martin Bobak &lt;mbobak@cisco.com&gt; on 2.4.2015.
  96  */
  97 public final class StatisticsGatheringUtils {
  98
  99     private static final Logger LOG = LoggerFactory.getLogger(StatisticsGatheringUtils.class);
 100     private static final SinglePurposeMultipartReplyTranslator MULTIPART_REPLY_TRANSLATOR = new SinglePurposeMultipartReplyTranslator();
 101
 102     private StatisticsGatheringUtils() {
 103         throw new IllegalStateException("This class should not be instantiated.");
 104     }
 105
 106     private static KeyedInstanceIdentifier<Node, NodeKey> getInstanceIdentifier(final DeviceContext deviceContext) {
 107         return InstanceIdentifier.create(Nodes.class).child(Node.class, new NodeKey(deviceContext.getPrimaryConnectionContext().getNodeId()));
 108     }
 109
 110     public static ListenableFuture<Boolean> gatherStatistics(final StatisticsGatheringService statisticsGatheringService,
 111                                                              final DeviceContext deviceContext,
 112                                                              final MultipartType type) {
 113         //FIXME : anytype listener must not be send as parameter, it has to be extracted from device context inside service
 114         final ListenableFuture<RpcResult<List<MultipartReply>>> statisticsDataInFuture =
 115                 JdkFutureAdapters.listenInPoolThread(statisticsGatheringService.getStatisticsOfType(type));
 116         return transformAndStoreStatisticsData(statisticsDataInFuture, deviceContext);
 117     }
 118
 119     private static ListenableFuture<Boolean> transformAndStoreStatisticsData(final ListenableFuture<RpcResult<List<MultipartReply>>> statisticsDataInFuture,
 120                                                                              final DeviceContext deviceContext) {
 121         return Futures.transform(statisticsDataInFuture, new Function<RpcResult<List<MultipartReply>>, Boolean>() {
 122             @Nullable
 123             @Override
 124             public Boolean apply(final RpcResult<List<MultipartReply>> rpcResult) {
 125                 if (rpcResult.isSuccessful()) {
 126                     for (final MultipartReply singleReply : rpcResult.getResult()) {
 127                         final List<? extends DataObject> multipartDataList = MULTIPART_REPLY_TRANSLATOR.translate(deviceContext, singleReply);
 128                         for (final DataObject singleMultipartData : multipartDataList) {
 129                             if (singleMultipartData instanceof GroupStatisticsUpdated) {
 130                                 processGroupStatistics((GroupStatisticsUpdated) singleMultipartData, deviceContext);
 131                             }
 132
 133                             if (singleMultipartData instanceof MeterStatisticsUpdated) {
 134                                 processMetersStatistics((MeterStatisticsUpdated) singleMultipartData, deviceContext);
 135                             }
 136                             if (singleMultipartData instanceof NodeConnectorStatisticsUpdate) {
 137                                 processNodeConnectorStatistics((NodeConnectorStatisticsUpdate) singleMultipartData, deviceContext);
 138                             }
 139                             if (singleMultipartData instanceof FlowTableStatisticsUpdate) {
 140                                 processFlowTableStatistics((FlowTableStatisticsUpdate) singleMultipartData, deviceContext);
 141                             }
 142                             if (singleMultipartData instanceof QueueStatisticsUpdate) {
 143                                 processQueueStatistics((QueueStatisticsUpdate) singleMultipartData, deviceContext);
 144                             }
 145                             if (singleMultipartData instanceof FlowsStatisticsUpdate) {
 146                                 processFlowStatistics((FlowsStatisticsUpdate) singleMultipartData, deviceContext);
 147                             }
 148                             if (singleMultipartData instanceof GroupDescStatsUpdated) {
 149                                 processGroupDescStats((GroupDescStatsUpdated) singleMultipartData, deviceContext);
 150                             }
 151                             if (singleMultipartData instanceof MeterConfigStatsUpdated) {
 152                                 processMeterConfigStatsUpdated((MeterConfigStatsUpdated) singleMultipartData, deviceContext);
 153                             }
 154
 155                             //TODO : implement experimenter
 156                         }
 157                     }
 158                     return Boolean.TRUE;
 159                 }
 160                 return Boolean.FALSE;
 161             }
 162         });
 163     }
 164
 165     private static void processMeterConfigStatsUpdated(final MeterConfigStatsUpdated meterConfigStatsUpdated, final DeviceContext deviceContext) {
 166         NodeId nodeId = meterConfigStatsUpdated.getId();
 167         final InstanceIdentifier<FlowCapableNode> fNodeIdent = getFlowCapableNodeInstanceIdentifier(nodeId);
 168
 169
 170         deleteAllKnownMeters(deviceContext, fNodeIdent);
 171         for (MeterConfigStats meterConfigStats : meterConfigStatsUpdated.getMeterConfigStats()) {
 172             final MeterId meterId = meterConfigStats.getMeterId();
 173             final InstanceIdentifier<Meter> meterInstanceIdentifier = fNodeIdent.child(Meter.class, new MeterKey(meterId));
 174
 175             final MeterBuilder meterBuilder = new MeterBuilder(meterConfigStats);
 176             meterBuilder.setKey(new MeterKey(meterId));
 177             meterBuilder.addAugmentation(NodeMeterStatistics.class, new NodeMeterStatisticsBuilder().build());
 178             deviceContext.getDeviceMeterRegistry().store(meterId);
 179             deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, meterInstanceIdentifier, meterBuilder.build());
 180         }
 181     }
 182
 183     private static void processFlowStatistics(final FlowsStatisticsUpdate singleMultipartData, final DeviceContext deviceContext) {
 184         final FlowsStatisticsUpdate flowsStatistics = singleMultipartData;
 185         final InstanceIdentifier<Node> nodeIdent = InstanceIdentifier.create(Nodes.class)
 186                 .child(Node.class, new NodeKey(flowsStatistics.getId()));
 187
 188         if (deviceContext.getDeviceState().isValid()) {
 189             deviceContext.startGatheringOperationsToOneTransaction();
 190         }
 191
 192         deleteAllKnownFlows(deviceContext, nodeIdent);
 193
 194         for (final FlowAndStatisticsMapList flowStat : flowsStatistics.getFlowAndStatisticsMapList()) {
 195             final FlowBuilder flowBuilder = new FlowBuilder(flowStat);
 196             FlowId flowId = null;
 197             FlowHash flowHash = FlowHashFactory.create(flowBuilder.build(), deviceContext.getPrimaryConnectionContext().getFeatures().getVersion());
 198             short tableId = flowStat.getTableId();
 199             final DeviceFlowRegistry deviceFlowRegistry = deviceContext.getDeviceFlowRegistry();
 200             FlowDescriptor flowDescriptor;
 201             flowDescriptor = deviceFlowRegistry.retrieveIdForFlow(flowHash);
 202             if (null != flowDescriptor) {
 203                 flowId = flowDescriptor.getFlowId();
 204             } else {
 205                 LOG.trace("Flow descriptor for flow hash {} wasn't found.", flowHash.hashCode());
 206                 flowId = FlowUtil.createAlienFlowId(tableId);
 207                 flowDescriptor = FlowDescriptorFactory.create(tableId, flowId);
 208             }
 209             deviceFlowRegistry.store(flowHash, flowDescriptor);
 210             FlowKey flowKey = new FlowKey(flowId);
 211             flowBuilder.setKey(flowKey);
 212             final TableKey tableKey = new TableKey(tableId);
 213             final InstanceIdentifier<FlowCapableNode> fNodeIdent = getFlowCapableNodeInstanceIdentifier(singleMultipartData.getId());
 214             final InstanceIdentifier<Flow> flowIdent = fNodeIdent.child(Table.class, tableKey).child(Flow.class, flowKey);
 215             deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, flowIdent, flowBuilder.build());
 216         }
 217
 218         if (deviceContext.getDeviceState().isValid()) {
 219             deviceContext.commitOperationsGatheredInOneTransaction();
 220         }
 221
 222     }
 223
 224     private static void deleteAllKnownFlows(final DeviceContext deviceContext, final InstanceIdentifier<Node> nodeIdent) {
 225         if (deviceContext.getDeviceState().deviceSynchronized()) {
 226             for (Map.Entry<FlowHash, FlowDescriptor> registryEntry : deviceContext.getDeviceFlowRegistry().getAllFlowDescriptors().entrySet()) {
 227                 FlowDescriptor flowDescriptor = registryEntry.getValue();
 228
 229                 FlowId flowId = flowDescriptor.getFlowId();
 230                 FlowKey flowKey = new FlowKey(flowId);
 231                 final InstanceIdentifier<Flow> flowInstanceIdentifier = nodeIdent
 232                         .augmentation(FlowCapableNode.class)
 233                         .child(Table.class, flowDescriptor.getTableKey())
 234                         .child(Flow.class, flowKey);
 235
 236                 LOG.trace("Deleting flow with id {}", flowInstanceIdentifier);
 237                 deviceContext.addDeleteToTxChain(LogicalDatastoreType.OPERATIONAL, flowInstanceIdentifier);
 238             }
 239         }
 240         deviceContext.getDeviceFlowRegistry().removeMarked();
 241     }
 242
 243     private static void processQueueStatistics(final QueueStatisticsUpdate singleMultipartData, final DeviceContext deviceContext) {
 244         final QueueStatisticsUpdate queueStatisticsUpdate = singleMultipartData;
 245         final InstanceIdentifier<Node> nodeIdent = InstanceIdentifier.create(Nodes.class)
 246                 .child(Node.class, new NodeKey(queueStatisticsUpdate.getId()));
 247         for (final QueueIdAndStatisticsMap queueStat : queueStatisticsUpdate.getQueueIdAndStatisticsMap()) {
 248             if (queueStat.getQueueId() != null) {
 249                 final FlowCapableNodeConnectorQueueStatistics statChild =
 250                         new FlowCapableNodeConnectorQueueStatisticsBuilder(queueStat).build();
 251                 final FlowCapableNodeConnectorQueueStatisticsDataBuilder statBuild =
 252                         new FlowCapableNodeConnectorQueueStatisticsDataBuilder();
 253                 statBuild.setFlowCapableNodeConnectorQueueStatistics(statChild);
 254                 final QueueKey qKey = new QueueKey(queueStat.getQueueId());
 255                 final InstanceIdentifier<Queue> queueIdent = nodeIdent
 256                         .child(NodeConnector.class, new NodeConnectorKey(queueStat.getNodeConnectorId()))
 257                         .augmentation(FlowCapableNodeConnector.class)
 258                         .child(Queue.class, qKey);
 259                 final InstanceIdentifier<FlowCapableNodeConnectorQueueStatisticsData> queueStatIdent = queueIdent.augmentation(FlowCapableNodeConnectorQueueStatisticsData.class);
 260                 deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, queueStatIdent, statBuild.build());
 261             }
 262         }
 263     }
 264
 265     private static void processFlowTableStatistics(final FlowTableStatisticsUpdate singleMultipartData, final DeviceContext deviceContext) {
 266         final FlowTableStatisticsUpdate flowTableStatisticsUpdate = singleMultipartData;
 267         final InstanceIdentifier<FlowCapableNode> fNodeIdent = getFlowCapableNodeInstanceIdentifier(flowTableStatisticsUpdate.getId());
 268
 269         for (final FlowTableAndStatisticsMap tableStat : flowTableStatisticsUpdate.getFlowTableAndStatisticsMap()) {
 270             final InstanceIdentifier<FlowTableStatistics> tStatIdent = fNodeIdent.child(Table.class, new TableKey(tableStat.getTableId().getValue()))
 271                     .augmentation(FlowTableStatisticsData.class).child(FlowTableStatistics.class);
 272             final FlowTableStatistics stats = new FlowTableStatisticsBuilder(tableStat).build();
 273             deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, tStatIdent, stats);
 274         }
 275     }
 276
 277     private static void processNodeConnectorStatistics(final NodeConnectorStatisticsUpdate singleMultipartData, final DeviceContext deviceContext) {
 278         final NodeConnectorStatisticsUpdate nodeConnectorStatisticsUpdate = singleMultipartData;
 279         final InstanceIdentifier<Node> nodeIdent = InstanceIdentifier.create(Nodes.class)
 280                 .child(Node.class, new NodeKey(nodeConnectorStatisticsUpdate.getId()));
 281         for (final NodeConnectorStatisticsAndPortNumberMap nConnectPort : nodeConnectorStatisticsUpdate.getNodeConnectorStatisticsAndPortNumberMap()) {
 282             final FlowCapableNodeConnectorStatistics stats = new FlowCapableNodeConnectorStatisticsBuilder(nConnectPort).build();
 283             final NodeConnectorKey key = new NodeConnectorKey(nConnectPort.getNodeConnectorId());
 284             final InstanceIdentifier<NodeConnector> nodeConnectorIdent = nodeIdent.child(NodeConnector.class, key);
 285             final InstanceIdentifier<FlowCapableNodeConnectorStatisticsData> nodeConnStatIdent = nodeConnectorIdent
 286                     .augmentation(FlowCapableNodeConnectorStatisticsData.class);
 287             final InstanceIdentifier<FlowCapableNodeConnectorStatistics> flowCapNodeConnStatIdent =
 288                     nodeConnStatIdent.child(FlowCapableNodeConnectorStatistics.class);
 289             deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, flowCapNodeConnStatIdent, stats);
 290         }
 291     }
 292
 293     private static void processMetersStatistics(final MeterStatisticsUpdated singleMultipartData, final DeviceContext deviceContext) {
 294         final MeterStatisticsUpdated meterStatisticsUpdated = singleMultipartData;
 295         final InstanceIdentifier<FlowCapableNode> fNodeIdent = getFlowCapableNodeInstanceIdentifier(meterStatisticsUpdated.getId());
 296
 297
 298         for (final MeterStats mStat : meterStatisticsUpdated.getMeterStats()) {
 299             final MeterStatistics stats = new MeterStatisticsBuilder(mStat).build();
 300             final MeterId meterId = mStat.getMeterId();
 301             final InstanceIdentifier<Meter> meterIdent = fNodeIdent.child(Meter.class, new MeterKey(meterId));
 302             final InstanceIdentifier<NodeMeterStatistics> nodeMeterStatIdent = meterIdent
 303                     .augmentation(NodeMeterStatistics.class);
 304             final InstanceIdentifier<MeterStatistics> msIdent = nodeMeterStatIdent.child(MeterStatistics.class);
 305             deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, msIdent, stats);
 306         }
 307     }
 308
 309     private static void deleteAllKnownMeters(final DeviceContext deviceContext, final InstanceIdentifier<FlowCapableNode> fNodeIdent) {
 310         for (MeterId meterId : deviceContext.getDeviceMeterRegistry().getAllMeterIds()) {
 311             final InstanceIdentifier<Meter> meterIdent = fNodeIdent.child(Meter.class, new MeterKey(meterId));
 312             deviceContext.addDeleteToTxChain(LogicalDatastoreType.OPERATIONAL, meterIdent);
 313         }
 314         deviceContext.getDeviceMeterRegistry().removeMarked();
 315     }
 316
 317     private static void processGroupDescStats(GroupDescStatsUpdated groupDescStatsUpdated, final DeviceContext deviceContext) {
 318         NodeId nodeId = groupDescStatsUpdated.getId();
 319         final InstanceIdentifier<FlowCapableNode> fNodeIdent = getFlowCapableNodeInstanceIdentifier(nodeId);
 320
 321         deleteAllKnownGroups(deviceContext, fNodeIdent);
 322         for (GroupDescStats groupDescStats : groupDescStatsUpdated.getGroupDescStats()) {
 323             final GroupId groupId = groupDescStats.getGroupId();
 324
 325             final GroupBuilder groupBuilder = new GroupBuilder(groupDescStats);
 326             groupBuilder.setKey(new GroupKey(groupId));
 327             groupBuilder.addAugmentation(NodeGroupStatistics.class, new NodeGroupStatisticsBuilder().build());
 328
 329             final InstanceIdentifier<Group> groupIdent = fNodeIdent.child(Group.class, new GroupKey(groupId));
 330
 331             deviceContext.getDeviceGroupRegistry().store(groupId);
 332             deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, groupIdent, groupBuilder.build());
 333         }
 334     }
 335
 336     private static void deleteAllKnownGroups(final DeviceContext deviceContext, final InstanceIdentifier<FlowCapableNode> fNodeIdent) {
 337         for (GroupId groupId : deviceContext.getDeviceGroupRegistry().getAllGroupIds()) {
 338             final InstanceIdentifier<Group> groupIdent = fNodeIdent.child(Group.class, new GroupKey(groupId));
 339             deviceContext.addDeleteToTxChain(LogicalDatastoreType.OPERATIONAL, groupIdent);
 340         }
 341         deviceContext.getDeviceGroupRegistry().removeMarked();
 342     }
 343
 344     private static void processGroupStatistics(final GroupStatisticsUpdated singleMultipartData, final DeviceContext deviceContext) {
 345         final GroupStatisticsUpdated groupStatistics = singleMultipartData;
 346         NodeId nodeId = groupStatistics.getId();
 347         final InstanceIdentifier<FlowCapableNode> fNodeIdent = getFlowCapableNodeInstanceIdentifier(nodeId);
 348
 349         for (final GroupStats groupStats : groupStatistics.getGroupStats()) {
 350
 351             final InstanceIdentifier<Group> groupIdent = fNodeIdent.child(Group.class, new GroupKey(groupStats.getGroupId()));
 352             final InstanceIdentifier<NodeGroupStatistics> nGroupStatIdent = groupIdent
 353                     .augmentation(NodeGroupStatistics.class);
 354
 355             final InstanceIdentifier<GroupStatistics> gsIdent = nGroupStatIdent.child(GroupStatistics.class);
 356             final GroupStatistics stats = new GroupStatisticsBuilder(groupStats).build();
 357             deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, gsIdent, stats);
 358         }
 359     }
 360
 361     private static InstanceIdentifier<FlowCapableNode> getFlowCapableNodeInstanceIdentifier(final NodeId nodeId) {
 362         final InstanceIdentifier<Node> nodeIdent = InstanceIdentifier
 363                 .create(Nodes.class).child(Node.class, new NodeKey(nodeId));
 364         return nodeIdent.augmentation(FlowCapableNode.class);
 365     }
 366 }