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.collect.Iterables;
  12
  13 import java.util.Collections;
  14 import com.google.common.base.Function;
  15 import com.google.common.util.concurrent.Futures;
  16 import com.google.common.util.concurrent.JdkFutureAdapters;
  17 import com.google.common.util.concurrent.ListenableFuture;
  18 import java.util.List;
  19 import java.util.Map;
  20 import javax.annotation.Nullable;
  21 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  22 import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
  23 import org.opendaylight.openflowplugin.api.openflow.registry.flow.DeviceFlowRegistry;
  24 import org.opendaylight.openflowplugin.api.openflow.registry.flow.FlowDescriptor;
  25 import org.opendaylight.openflowplugin.api.openflow.registry.flow.FlowHash;
  26 import org.opendaylight.openflowplugin.impl.registry.flow.FlowDescriptorFactory;
  27 import org.opendaylight.openflowplugin.impl.registry.flow.FlowHashFactory;
  28 import org.opendaylight.openflowplugin.impl.statistics.services.dedicated.StatisticsGatheringService;
  29 import org.opendaylight.openflowplugin.impl.util.FlowUtil;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.Meter;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.MeterBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.MeterKey;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.TableKey;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowKey;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowsStatisticsUpdate;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapList;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.FlowTableStatisticsData;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.FlowTableStatisticsUpdate;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.flow.table.and.statistics.map.FlowTableAndStatisticsMap;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.flow.table.statistics.FlowTableStatistics;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.flow.table.statistics.FlowTableStatisticsBuilder;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.port.rev130925.queues.Queue;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.port.rev130925.queues.QueueKey;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.GroupDescStatsUpdated;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.GroupStatisticsUpdated;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.NodeGroupStatistics;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.NodeGroupStatisticsBuilder;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.group.statistics.GroupStatistics;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.group.statistics.GroupStatisticsBuilder;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.GroupId;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.desc.stats.reply.GroupDescStats;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.statistics.reply.GroupStats;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.Group;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.GroupBuilder;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.GroupKey;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnectorKey;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.MeterConfigStatsUpdated;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.MeterStatisticsUpdated;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.NodeMeterStatistics;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.NodeMeterStatisticsBuilder;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.nodes.node.meter.MeterStatistics;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.nodes.node.meter.MeterStatisticsBuilder;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.types.rev130918.MeterId;
  75 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.types.rev130918.meter.config.stats.reply.MeterConfigStats;
  76 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.types.rev130918.meter.statistics.reply.MeterStats;
  77 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MultipartType;
  78 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MultipartReply;
  79 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.FlowCapableNodeConnectorStatisticsData;
  80 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.NodeConnectorStatisticsUpdate;
  81 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.flow.capable.node.connector.statistics.FlowCapableNodeConnectorStatistics;
  82 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.flow.capable.node.connector.statistics.FlowCapableNodeConnectorStatisticsBuilder;
  83 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.node.connector.statistics.and.port.number.map.NodeConnectorStatisticsAndPortNumberMap;
  84 import org.opendaylight.yang.gen.v1.urn.opendaylight.queue.statistics.rev131216.FlowCapableNodeConnectorQueueStatisticsData;
  85 import org.opendaylight.yang.gen.v1.urn.opendaylight.queue.statistics.rev131216.FlowCapableNodeConnectorQueueStatisticsDataBuilder;
  86 import org.opendaylight.yang.gen.v1.urn.opendaylight.queue.statistics.rev131216.QueueStatisticsUpdate;
  87 import org.opendaylight.yang.gen.v1.urn.opendaylight.queue.statistics.rev131216.flow.capable.node.connector.queue.statistics.FlowCapableNodeConnectorQueueStatistics;
  88 import org.opendaylight.yang.gen.v1.urn.opendaylight.queue.statistics.rev131216.flow.capable.node.connector.queue.statistics.FlowCapableNodeConnectorQueueStatisticsBuilder;
  89 import org.opendaylight.yang.gen.v1.urn.opendaylight.queue.statistics.rev131216.queue.id.and.statistics.map.QueueIdAndStatisticsMap;
  90 import org.opendaylight.yangtools.yang.binding.DataObject;
  91 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  92 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
  93 import org.opendaylight.yangtools.yang.common.RpcResult;
  94 import org.slf4j.Logger;
  95 import org.slf4j.LoggerFactory;
  96
  97 /**
  98  * Created by Martin Bobak &lt;mbobak@cisco.com&gt; on 2.4.2015.
  99  */
 100 public final class StatisticsGatheringUtils {
 101
 102     private static final Logger LOG = LoggerFactory.getLogger(StatisticsGatheringUtils.class);
 103     private static final SinglePurposeMultipartReplyTranslator MULTIPART_REPLY_TRANSLATOR = new SinglePurposeMultipartReplyTranslator();
 104
 105     private StatisticsGatheringUtils() {
 106         throw new IllegalStateException("This class should not be instantiated.");
 107     }
 108
 109     private static KeyedInstanceIdentifier<Node, NodeKey> getInstanceIdentifier(final DeviceContext deviceContext) {
 110         return InstanceIdentifier.create(Nodes.class).child(Node.class, new NodeKey(deviceContext.getPrimaryConnectionContext().getNodeId()));
 111     }
 112
 113     public static ListenableFuture<Boolean> gatherStatistics(final StatisticsGatheringService statisticsGatheringService,
 114                                                              final DeviceContext deviceContext,
 115                                                              final MultipartType type) {
 116         //FIXME : anytype listener must not be send as parameter, it has to be extracted from device context inside service
 117         final ListenableFuture<RpcResult<List<MultipartReply>>> statisticsDataInFuture =
 118                 JdkFutureAdapters.listenInPoolThread(statisticsGatheringService.getStatisticsOfType(type));
 119         return transformAndStoreStatisticsData(statisticsDataInFuture, deviceContext);
 120     }
 121
 122     private static ListenableFuture<Boolean> transformAndStoreStatisticsData(final ListenableFuture<RpcResult<List<MultipartReply>>> statisticsDataInFuture,
 123                                                                              final DeviceContext deviceContext) {
 124         return Futures.transform(statisticsDataInFuture, new Function<RpcResult<List<MultipartReply>>, Boolean>() {
 125             @Nullable
 126             @Override
 127             public Boolean apply(final RpcResult<List<MultipartReply>> rpcResult) {
 128                 if (rpcResult.isSuccessful()) {
 129                     boolean isMultipartProcessed = Boolean.TRUE;
 130                     Iterable<? extends DataObject> allMultipartData = Collections.emptyList();
 131                     DataObject multipartData = null;
 132                     for (final MultipartReply singleReply : rpcResult.getResult()) {
 133                         final List<? extends DataObject> multipartDataList = MULTIPART_REPLY_TRANSLATOR.translate(deviceContext, singleReply);
 134                         multipartData = multipartDataList.get(0);
 135                         allMultipartData = Iterables.concat(allMultipartData, multipartDataList);
 136                     }
 137
 138                     if (deviceContext.getDeviceState().isValid()) {
 139                         deviceContext.startGatheringOperationsToOneTransaction();
 140                     }
 141
 142                     if (multipartData instanceof GroupStatisticsUpdated) {
 143                         processGroupStatistics((Iterable<GroupStatisticsUpdated>)allMultipartData, deviceContext);
 144                     } else if (multipartData instanceof MeterStatisticsUpdated) {
 145                         processMetersStatistics((Iterable<MeterStatisticsUpdated>)allMultipartData, deviceContext);
 146                     } else if (multipartData instanceof NodeConnectorStatisticsUpdate) {
 147                         processNodeConnectorStatistics((Iterable<NodeConnectorStatisticsUpdate>) allMultipartData, deviceContext);
 148                     } else if (multipartData instanceof FlowTableStatisticsUpdate) {
 149                         processFlowTableStatistics((Iterable<FlowTableStatisticsUpdate>) allMultipartData, deviceContext);
 150                     } else if (multipartData instanceof QueueStatisticsUpdate) {
 151                         processQueueStatistics((Iterable<QueueStatisticsUpdate>) allMultipartData, deviceContext);
 152                     } else if (multipartData instanceof FlowsStatisticsUpdate) {
 153                         processFlowStatistics((Iterable<FlowsStatisticsUpdate>)allMultipartData, deviceContext);
 154                     } else if (multipartData instanceof GroupDescStatsUpdated) {
 155                         processGroupDescStats((Iterable<GroupDescStatsUpdated>) allMultipartData, deviceContext);
 156                     } else if (multipartData instanceof MeterConfigStatsUpdated) {
 157                         processMeterConfigStatsUpdated((Iterable<MeterConfigStatsUpdated>) allMultipartData, deviceContext);
 158                     } else {
 159                         isMultipartProcessed = Boolean.FALSE;
 160                     }
 161                     //TODO : implement experimenter
 162
 163                     if (deviceContext.getDeviceState().isValid()) {
 164                         deviceContext.commitOperationsGatheredInOneTransaction();
 165                     }
 166                     return isMultipartProcessed;
 167                 }
 168                 return Boolean.FALSE;
 169             }
 170         });
 171     }
 172
 173     private static void processMeterConfigStatsUpdated(final Iterable<MeterConfigStatsUpdated> data, final DeviceContext deviceContext) {
 174         for (final MeterConfigStatsUpdated meterConfigStatsUpdated : data) {
 175             NodeId nodeId = meterConfigStatsUpdated.getId();
 176             final InstanceIdentifier<FlowCapableNode> fNodeIdent = getFlowCapableNodeInstanceIdentifier(nodeId);
 177             for (MeterConfigStats meterConfigStats : meterConfigStatsUpdated.getMeterConfigStats()) {
 178                 final MeterId meterId = meterConfigStats.getMeterId();
 179                 final InstanceIdentifier<Meter> meterInstanceIdentifier = fNodeIdent.child(Meter.class, new MeterKey(meterId));
 180
 181                 final MeterBuilder meterBuilder = new MeterBuilder(meterConfigStats);
 182                 meterBuilder.setKey(new MeterKey(meterId));
 183                 meterBuilder.addAugmentation(NodeMeterStatistics.class, new NodeMeterStatisticsBuilder().build());
 184                 deviceContext.getDeviceMeterRegistry().store(meterId);
 185                 deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, meterInstanceIdentifier, meterBuilder.build());
 186             }
 187         }
 188     }
 189
 190     private static void processFlowStatistics(final Iterable<FlowsStatisticsUpdate> data, final DeviceContext deviceContext) {
 191         boolean isFirstLoop = true;
 192         for (final FlowsStatisticsUpdate flowsStatistics : data) {
 193             if (isFirstLoop) {
 194                 final InstanceIdentifier<Node> nodeIdent = InstanceIdentifier.create(Nodes.class)
 195                         .child(Node.class, new NodeKey(flowsStatistics.getId()));
 196                 deleteAllKnownFlows(deviceContext, nodeIdent);
 197                 isFirstLoop = false;
 198             }
 199             for (final FlowAndStatisticsMapList flowStat : flowsStatistics.getFlowAndStatisticsMapList()) {
 200                 final FlowBuilder flowBuilder = new FlowBuilder(flowStat);
 201                 FlowId flowId = null;
 202                 FlowHash flowHash = FlowHashFactory.create(flowBuilder.build(), deviceContext.getPrimaryConnectionContext().getFeatures().getVersion());
 203                 short tableId = flowStat.getTableId();
 204                 final DeviceFlowRegistry deviceFlowRegistry = deviceContext.getDeviceFlowRegistry();
 205                 FlowDescriptor flowDescriptor;
 206                 flowDescriptor = deviceFlowRegistry.retrieveIdForFlow(flowHash);
 207                 if (null != flowDescriptor) {
 208                     flowId = flowDescriptor.getFlowId();
 209                 } else {
 210                     LOG.trace("Flow descriptor for flow hash {} wasn't found.", flowHash.hashCode());
 211                     flowId = FlowUtil.createAlienFlowId(tableId);
 212                     flowDescriptor = FlowDescriptorFactory.create(tableId, flowId);
 213                     deviceFlowRegistry.store(flowHash, flowDescriptor);
 214                 }
 215                 FlowKey flowKey = new FlowKey(flowId);
 216                 flowBuilder.setKey(flowKey);
 217                 final TableKey tableKey = new TableKey(tableId);
 218                 final InstanceIdentifier<FlowCapableNode> fNodeIdent = getFlowCapableNodeInstanceIdentifier(flowsStatistics.getId());
 219                 final InstanceIdentifier<Flow> flowIdent = fNodeIdent.child(Table.class, tableKey).child(Flow.class, flowKey);
 220                 deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, flowIdent, flowBuilder.build());
 221             }
 222         }
 223     }
 224
 225     private static void deleteAllKnownFlows(final DeviceContext deviceContext, final InstanceIdentifier<Node> nodeIdent) {
 226         if (deviceContext.getDeviceState().deviceSynchronized()) {
 227             for (Map.Entry<FlowHash, FlowDescriptor> registryEntry : deviceContext.getDeviceFlowRegistry().getAllFlowDescriptors().entrySet()) {
 228                 FlowDescriptor flowDescriptor = registryEntry.getValue();
 229
 230                 FlowId flowId = flowDescriptor.getFlowId();
 231                 FlowKey flowKey = new FlowKey(flowId);
 232                 final InstanceIdentifier<Flow> flowInstanceIdentifier = nodeIdent
 233                         .augmentation(FlowCapableNode.class)
 234                         .child(Table.class, flowDescriptor.getTableKey())
 235                         .child(Flow.class, flowKey);
 236
 237                 LOG.trace("Deleting flow with id {}", flowInstanceIdentifier);
 238                 deviceContext.addDeleteToTxChain(LogicalDatastoreType.OPERATIONAL, flowInstanceIdentifier);
 239             }
 240         }
 241         deviceContext.getDeviceFlowRegistry().removeMarked();
 242     }
 243
 244     private static void processQueueStatistics(final Iterable<QueueStatisticsUpdate> data, final DeviceContext deviceContext) {
 245         for (final QueueStatisticsUpdate queueStatisticsUpdate : data) {
 246             final InstanceIdentifier<Node> nodeIdent = InstanceIdentifier.create(Nodes.class)
 247                     .child(Node.class, new NodeKey(queueStatisticsUpdate.getId()));
 248             for (final QueueIdAndStatisticsMap queueStat : queueStatisticsUpdate.getQueueIdAndStatisticsMap()) {
 249                 if (queueStat.getQueueId() != null) {
 250                     final FlowCapableNodeConnectorQueueStatistics statChild =
 251                             new FlowCapableNodeConnectorQueueStatisticsBuilder(queueStat).build();
 252                     final FlowCapableNodeConnectorQueueStatisticsDataBuilder statBuild =
 253                             new FlowCapableNodeConnectorQueueStatisticsDataBuilder();
 254                     statBuild.setFlowCapableNodeConnectorQueueStatistics(statChild);
 255                     final QueueKey qKey = new QueueKey(queueStat.getQueueId());
 256                     final InstanceIdentifier<Queue> queueIdent = nodeIdent
 257                             .child(NodeConnector.class, new NodeConnectorKey(queueStat.getNodeConnectorId()))
 258                             .augmentation(FlowCapableNodeConnector.class)
 259                             .child(Queue.class, qKey);
 260                     final InstanceIdentifier<FlowCapableNodeConnectorQueueStatisticsData> queueStatIdent = queueIdent.augmentation(FlowCapableNodeConnectorQueueStatisticsData.class);
 261                     deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, queueStatIdent, statBuild.build());
 262                 }
 263             }
 264         }
 265     }
 266
 267     private static void processFlowTableStatistics(final Iterable<FlowTableStatisticsUpdate> data, final DeviceContext deviceContext) {
 268         for(final FlowTableStatisticsUpdate flowTableStatisticsUpdate : data) {
 269             final InstanceIdentifier<FlowCapableNode> fNodeIdent = getFlowCapableNodeInstanceIdentifier(flowTableStatisticsUpdate.getId());
 270
 271             for (final FlowTableAndStatisticsMap tableStat : flowTableStatisticsUpdate.getFlowTableAndStatisticsMap()) {
 272                 final InstanceIdentifier<FlowTableStatistics> tStatIdent = fNodeIdent.child(Table.class, new TableKey(tableStat.getTableId().getValue()))
 273                         .augmentation(FlowTableStatisticsData.class).child(FlowTableStatistics.class);
 274                 final FlowTableStatistics stats = new FlowTableStatisticsBuilder(tableStat).build();
 275                 deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, tStatIdent, stats);
 276             }
 277         }
 278     }
 279
 280     private static void processNodeConnectorStatistics(final Iterable<NodeConnectorStatisticsUpdate> data, final DeviceContext deviceContext) {
 281         for (final NodeConnectorStatisticsUpdate nodeConnectorStatisticsUpdate : data) {
 282             final InstanceIdentifier<Node> nodeIdent = InstanceIdentifier.create(Nodes.class)
 283                     .child(Node.class, new NodeKey(nodeConnectorStatisticsUpdate.getId()));
 284             for (final NodeConnectorStatisticsAndPortNumberMap nConnectPort : nodeConnectorStatisticsUpdate.getNodeConnectorStatisticsAndPortNumberMap()) {
 285                 final FlowCapableNodeConnectorStatistics stats = new FlowCapableNodeConnectorStatisticsBuilder(nConnectPort).build();
 286                 final NodeConnectorKey key = new NodeConnectorKey(nConnectPort.getNodeConnectorId());
 287                 final InstanceIdentifier<NodeConnector> nodeConnectorIdent = nodeIdent.child(NodeConnector.class, key);
 288                 final InstanceIdentifier<FlowCapableNodeConnectorStatisticsData> nodeConnStatIdent = nodeConnectorIdent
 289                         .augmentation(FlowCapableNodeConnectorStatisticsData.class);
 290                 final InstanceIdentifier<FlowCapableNodeConnectorStatistics> flowCapNodeConnStatIdent =
 291                         nodeConnStatIdent.child(FlowCapableNodeConnectorStatistics.class);
 292                 deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, flowCapNodeConnStatIdent, stats);
 293             }
 294         }
 295     }
 296
 297     private static void processMetersStatistics(final Iterable<MeterStatisticsUpdated> data,
 298                                                 final DeviceContext deviceContext) {
 299         boolean isFirstLoop = true;
 300         for (MeterStatisticsUpdated meterStatisticsUpdated : data) {
 301             final InstanceIdentifier<FlowCapableNode> fNodeIdent = getFlowCapableNodeInstanceIdentifier(meterStatisticsUpdated.getId());
 302             if (isFirstLoop) {
 303                 deleteAllKnownMeters(deviceContext, fNodeIdent);
 304                 isFirstLoop = false;
 305             }
 306             for (final MeterStats mStat : meterStatisticsUpdated.getMeterStats()) {
 307                 final MeterStatistics stats = new MeterStatisticsBuilder(mStat).build();
 308                 final MeterId meterId = mStat.getMeterId();
 309                 final InstanceIdentifier<Meter> meterIdent = fNodeIdent.child(Meter.class, new MeterKey(meterId));
 310                 final InstanceIdentifier<NodeMeterStatistics> nodeMeterStatIdent = meterIdent
 311                         .augmentation(NodeMeterStatistics.class);
 312                 final InstanceIdentifier<MeterStatistics> msIdent = nodeMeterStatIdent.child(MeterStatistics.class);
 313                 deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, msIdent, stats);
 314             }
 315         }
 316     }
 317
 318     private static void deleteAllKnownMeters(final DeviceContext deviceContext, final InstanceIdentifier<FlowCapableNode> fNodeIdent) {
 319         for (MeterId meterId : deviceContext.getDeviceMeterRegistry().getAllMeterIds()) {
 320             final InstanceIdentifier<Meter> meterIdent = fNodeIdent.child(Meter.class, new MeterKey(meterId));
 321             deviceContext.addDeleteToTxChain(LogicalDatastoreType.OPERATIONAL, meterIdent);
 322         }
 323         deviceContext.getDeviceMeterRegistry().removeMarked();
 324     }
 325
 326     private static void processGroupDescStats(final Iterable<GroupDescStatsUpdated> data, final DeviceContext deviceContext) {
 327         for ( GroupDescStatsUpdated groupDescStatsUpdated : data) {
 328             NodeId nodeId = groupDescStatsUpdated.getId();
 329             final InstanceIdentifier<FlowCapableNode> fNodeIdent = getFlowCapableNodeInstanceIdentifier(nodeId);
 330
 331             for (GroupDescStats groupDescStats : groupDescStatsUpdated.getGroupDescStats()) {
 332                 final GroupId groupId = groupDescStats.getGroupId();
 333
 334                 final GroupBuilder groupBuilder = new GroupBuilder(groupDescStats);
 335                 groupBuilder.setKey(new GroupKey(groupId));
 336                 groupBuilder.addAugmentation(NodeGroupStatistics.class, new NodeGroupStatisticsBuilder().build());
 337
 338                 final InstanceIdentifier<Group> groupIdent = fNodeIdent.child(Group.class, new GroupKey(groupId));
 339
 340                 deviceContext.getDeviceGroupRegistry().store(groupId);
 341                 deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, groupIdent, groupBuilder.build());
 342             }
 343         }
 344     }
 345
 346     private static void deleteAllKnownGroups(final DeviceContext deviceContext, final InstanceIdentifier<FlowCapableNode> fNodeIdent) {
 347         for (GroupId groupId : deviceContext.getDeviceGroupRegistry().getAllGroupIds()) {
 348             final InstanceIdentifier<Group> groupIdent = fNodeIdent.child(Group.class, new GroupKey(groupId));
 349             deviceContext.addDeleteToTxChain(LogicalDatastoreType.OPERATIONAL, groupIdent);
 350         }
 351         deviceContext.getDeviceGroupRegistry().removeMarked();
 352     }
 353
 354     private static void processGroupStatistics(final Iterable<GroupStatisticsUpdated> data, final DeviceContext deviceContext) {
 355         boolean isFirstLoop = true;
 356         for (GroupStatisticsUpdated groupStatistics : data) {
 357             NodeId nodeId = groupStatistics.getId();
 358             final InstanceIdentifier<FlowCapableNode> fNodeIdent = getFlowCapableNodeInstanceIdentifier(nodeId);
 359             if (isFirstLoop) {
 360                 deleteAllKnownGroups(deviceContext, fNodeIdent);
 361                 isFirstLoop = false;
 362             }
 363
 364             for (final GroupStats groupStats : groupStatistics.getGroupStats()) {
 365
 366                 final InstanceIdentifier<Group> groupIdent = fNodeIdent.child(Group.class, new GroupKey(groupStats.getGroupId()));
 367                 final InstanceIdentifier<NodeGroupStatistics> nGroupStatIdent = groupIdent
 368                         .augmentation(NodeGroupStatistics.class);
 369
 370                 final InstanceIdentifier<GroupStatistics> gsIdent = nGroupStatIdent.child(GroupStatistics.class);
 371                 final GroupStatistics stats = new GroupStatisticsBuilder(groupStats).build();
 372                 deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, gsIdent, stats);
 373             }
 374         }
 375     }
 376
 377     private static InstanceIdentifier<FlowCapableNode> getFlowCapableNodeInstanceIdentifier(final NodeId nodeId) {
 378         final InstanceIdentifier<Node> nodeIdent = InstanceIdentifier
 379                 .create(Nodes.class).child(Node.class, new NodeKey(nodeId));
 380         return nodeIdent.augmentation(FlowCapableNode.class);
 381     }
 382 }