DeviceState changes
[openflowplugin.git] / openflowplugin-impl / src / main / java / org / opendaylight / openflowplugin / impl / statistics / StatisticsGatheringUtils.java
index 02e86f33c3b80525f28107f8b97cc8077da03e1b..00b824aaf02301b6d45c582e526ecf3bc01b3263 100644 (file)
@@ -17,24 +17,36 @@ import com.google.common.util.concurrent.FutureFallback;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.JdkFutureAdapters;
 import com.google.common.util.concurrent.ListenableFuture;
+import java.text.SimpleDateFormat;
 import java.util.Collections;
+import java.util.Date;
 import java.util.List;
 import javax.annotation.Nullable;
 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
 import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
+import org.opendaylight.openflowplugin.api.openflow.device.DeviceInfo;
+import org.opendaylight.openflowplugin.api.openflow.device.DeviceState;
+import org.opendaylight.openflowplugin.api.openflow.device.TxFacade;
+import org.opendaylight.openflowplugin.api.openflow.registry.flow.DeviceFlowRegistry;
 import org.opendaylight.openflowplugin.api.openflow.registry.flow.FlowRegistryKey;
 import org.opendaylight.openflowplugin.api.openflow.statistics.ofpspecific.EventIdentifier;
 import org.opendaylight.openflowplugin.api.openflow.statistics.ofpspecific.StatisticsGatherer;
 import org.opendaylight.openflowplugin.impl.registry.flow.FlowRegistryKeyFactory;
 import org.opendaylight.openflowplugin.impl.statistics.ofpspecific.EventsTimeCounter;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev100924.DateAndTime;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableStatisticsGatheringStatus;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableStatisticsGatheringStatusBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.Meter;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.MeterBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.MeterKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.snapshot.gathering.status.grouping.SnapshotGatheringStatusEnd;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.snapshot.gathering.status.grouping.SnapshotGatheringStatusEndBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.snapshot.gathering.status.grouping.SnapshotGatheringStatusStartBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.TableBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.TableKey;
@@ -102,6 +114,8 @@ import org.slf4j.LoggerFactory;
  */
 public final class StatisticsGatheringUtils {
 
+    public static String DATE_AND_TIME_FORMAT = "yyyy-MM-dd'T'HH:mm:ss.SSSXXX";
+
     private static final Logger LOG = LoggerFactory.getLogger(StatisticsGatheringUtils.class);
     private static final SinglePurposeMultipartReplyTranslator MULTIPART_REPLY_TRANSLATOR = new SinglePurposeMultipartReplyTranslator();
     public static final String QUEUE2_REQCTX = "QUEUE2REQCTX-";
@@ -136,7 +150,7 @@ public final class StatisticsGatheringUtils {
             public ListenableFuture<Boolean> apply(final RpcResult<List<MultipartReply>> rpcResult) {
                 boolean isMultipartProcessed = Boolean.TRUE;
                 if (rpcResult.isSuccessful()) {
-                    LOG.debug("Stats reply successfully received for node {} of type {}", deviceContext.getDeviceState().getNodeId(), type);
+                    LOG.debug("Stats reply successfully received for node {} of type {}", deviceContext.getDeviceInfo().getNodeId(), type);
 
                     // TODO: in case the result value is null then multipart data probably got processed on the fly -
                     // TODO: this contract should by clearly stated and enforced - now simple true value is returned
@@ -147,13 +161,15 @@ public final class StatisticsGatheringUtils {
 
                         try {
                             for (final MultipartReply singleReply : rpcResult.getResult()) {
-                                final List<? extends DataObject> multipartDataList = MULTIPART_REPLY_TRANSLATOR.translate(deviceContext, singleReply);
+                                final List<? extends DataObject> multipartDataList = MULTIPART_REPLY_TRANSLATOR.translate(
+                                        deviceContext.getPrimaryConnectionContext().getFeatures().getDatapathId(),
+                                        deviceContext.getPrimaryConnectionContext().getFeatures().getVersion(), singleReply);
                                 multipartData = multipartDataList.get(0);
                                 allMultipartData = Iterables.concat(allMultipartData, multipartDataList);
                             }
                         } catch (final Exception e) {
                             LOG.warn("stats processing of type {} for node {} failed during transfomation step",
-                                    type, deviceContext.getDeviceState().getNodeId(), e);
+                                    type, deviceContext.getDeviceInfo().getNodeId(), e);
                             return Futures.immediateFailedFuture(e);
                         }
 
@@ -183,19 +199,19 @@ public final class StatisticsGatheringUtils {
                             }
                         } catch (final Exception e) {
                             LOG.warn("stats processing of type {} for node {} failed during write-to-tx step",
-                                    type, deviceContext.getDeviceState().getNodeId(), e);
+                                    type, deviceContext.getDeviceInfo().getNodeId(), e);
                             return Futures.immediateFailedFuture(e);
                         }
 
-                        LOG.debug("Stats reply added to transaction for node {} of type {}", deviceContext.getDeviceState().getNodeId(), type);
+                        LOG.debug("Stats reply added to transaction for node {} of type {}", deviceContext.getDeviceInfo().getNodeId(), type);
 
                         //TODO : implement experimenter
                     } else {
-                        LOG.debug("Stats reply was empty for node {} of type {}", deviceContext.getDeviceState().getNodeId(), type);
+                        LOG.debug("Stats reply was empty for node {} of type {}", deviceContext.getDeviceInfo().getNodeId(), type);
                     }
 
                 } else {
-                    LOG.debug("Stats reply FAILED for node {} of type {}: {}", deviceContext.getDeviceState().getNodeId(), type, rpcResult.getErrors());
+                    LOG.debug("Stats reply FAILED for node {} of type {}: {}", deviceContext.getDeviceInfo().getNodeId(), type, rpcResult.getErrors());
                     isMultipartProcessed = Boolean.FALSE;
                 }
                 return Futures.immediateFuture(isMultipartProcessed);
@@ -203,8 +219,8 @@ public final class StatisticsGatheringUtils {
         });
     }
 
-    private static void processMeterConfigStatsUpdated(final Iterable<MeterConfigStatsUpdated> data, final DeviceContext deviceContext) {
-        final InstanceIdentifier<FlowCapableNode> fNodeIdent = assembleFlowCapableNodeInstanceIdentifier(deviceContext);
+    private static void processMeterConfigStatsUpdated(final Iterable<MeterConfigStatsUpdated> data, final DeviceContext deviceContext) throws Exception {
+        final InstanceIdentifier<FlowCapableNode> fNodeIdent = assembleFlowCapableNodeInstanceIdentifier(deviceContext.getDeviceInfo());
         deleteAllKnownMeters(deviceContext, fNodeIdent);
         for (final MeterConfigStatsUpdated meterConfigStatsUpdated : data) {
             for (final MeterConfigStats meterConfigStats : meterConfigStatsUpdated.getMeterConfigStats()) {
@@ -222,13 +238,15 @@ public final class StatisticsGatheringUtils {
     }
 
     private static ListenableFuture<Boolean> processFlowStatistics(final Iterable<FlowsStatisticsUpdate> data,
-            final DeviceContext deviceContext, final EventIdentifier eventIdentifier) {
-        final ListenableFuture<Void> deleFuture = deleteAllKnownFlows(deviceContext);
+                                                                   final DeviceContext deviceContext, final EventIdentifier eventIdentifier) {
+        final ListenableFuture<Void> deleFuture = deleteAllKnownFlows(deviceContext.getDeviceInfo(),
+                deviceContext.getDeviceFlowRegistry(), deviceContext, deviceContext.getDeviceState());
         return Futures.transform(deleFuture, new Function<Void, Boolean>() {
 
             @Override
             public Boolean apply(final Void input) {
-                writeFlowStatistics(data, deviceContext);
+                writeFlowStatistics(data, deviceContext.getDeviceInfo(), deviceContext.getDeviceFlowRegistry(),
+                        deviceContext);
                 deviceContext.submitTransaction();
                 EventsTimeCounter.markEnd(eventIdentifier);
                 return Boolean.TRUE;
@@ -236,23 +254,30 @@ public final class StatisticsGatheringUtils {
         });
     }
 
-    public static void writeFlowStatistics(final Iterable<FlowsStatisticsUpdate> data, final DeviceContext deviceContext) {
-        final InstanceIdentifier<FlowCapableNode> fNodeIdent = assembleFlowCapableNodeInstanceIdentifier(deviceContext);
-        for (final FlowsStatisticsUpdate flowsStatistics : data) {
-            for (final FlowAndStatisticsMapList flowStat : flowsStatistics.getFlowAndStatisticsMapList()) {
-                final FlowBuilder flowBuilder = new FlowBuilder(flowStat);
-                flowBuilder.addAugmentation(FlowStatisticsData.class, refineFlowStatisticsAugmentation(flowStat).build());
-
-                final short tableId = flowStat.getTableId();
-                final FlowRegistryKey flowRegistryKey = FlowRegistryKeyFactory.create(flowBuilder.build());
-                final FlowId flowId = deviceContext.getDeviceFlowRegistry().storeIfNecessary(flowRegistryKey, tableId);
-
-                final FlowKey flowKey = new FlowKey(flowId);
-                flowBuilder.setKey(flowKey);
-                final TableKey tableKey = new TableKey(tableId);
-                final InstanceIdentifier<Flow> flowIdent = fNodeIdent.child(Table.class, tableKey).child(Flow.class, flowKey);
-                deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, flowIdent, flowBuilder.build());
+    public static void writeFlowStatistics(final Iterable<FlowsStatisticsUpdate> data,
+                                           final DeviceInfo deviceInfo,
+                                           final DeviceFlowRegistry registry,
+                                           final TxFacade txFacade) {
+        final InstanceIdentifier<FlowCapableNode> fNodeIdent = assembleFlowCapableNodeInstanceIdentifier(deviceInfo);
+        try {
+            for (final FlowsStatisticsUpdate flowsStatistics : data) {
+                for (final FlowAndStatisticsMapList flowStat : flowsStatistics.getFlowAndStatisticsMapList()) {
+                    final FlowBuilder flowBuilder = new FlowBuilder(flowStat);
+                    flowBuilder.addAugmentation(FlowStatisticsData.class, refineFlowStatisticsAugmentation(flowStat).build());
+
+                    final short tableId = flowStat.getTableId();
+                    final FlowRegistryKey flowRegistryKey = FlowRegistryKeyFactory.create(flowBuilder.build());
+                    final FlowId flowId = registry.storeIfNecessary(flowRegistryKey, tableId);
+
+                    final FlowKey flowKey = new FlowKey(flowId);
+                    flowBuilder.setKey(flowKey);
+                    final TableKey tableKey = new TableKey(tableId);
+                    final InstanceIdentifier<Flow> flowIdent = fNodeIdent.child(Table.class, tableKey).child(Flow.class, flowKey);
+                    txFacade.writeToTransaction(LogicalDatastoreType.OPERATIONAL, flowIdent, flowBuilder.build());
+                }
             }
+        } catch (Exception e) {
+            LOG.warn("Not able to write to transaction: {}", e.getMessage());
         }
     }
 
@@ -268,11 +293,15 @@ public final class StatisticsGatheringUtils {
         return flowStatisticsDataBld;
     }
 
-    public static ListenableFuture<Void> deleteAllKnownFlows(final DeviceContext deviceContext) {
+    public static ListenableFuture<Void> deleteAllKnownFlows(final DeviceInfo deviceInfo,
+                                                             final DeviceFlowRegistry registry,
+                                                             final TxFacade txFacade,
+                                                             final DeviceState deviceState) {
+        //TODO:Make check for phase from enum
         /* DeviceState.deviceSynchronized is a marker for actual phase - false means initPhase, true means noInitPhase */
-        if (deviceContext.getDeviceState().deviceSynchronized()) {
-            final InstanceIdentifier<FlowCapableNode> flowCapableNodePath = assembleFlowCapableNodeInstanceIdentifier(deviceContext);
-            final ReadOnlyTransaction readTx = deviceContext.getReadTransaction();
+        if (deviceState.deviceSynchronized()) {
+            final InstanceIdentifier<FlowCapableNode> flowCapableNodePath = assembleFlowCapableNodeInstanceIdentifier(deviceInfo);
+            final ReadOnlyTransaction readTx = txFacade.getReadTransaction();
             final CheckedFuture<Optional<FlowCapableNode>, ReadFailedException> flowCapableNodeFuture = readTx.read(
                     LogicalDatastoreType.OPERATIONAL, flowCapableNodePath);
 
@@ -295,12 +324,12 @@ public final class StatisticsGatheringUtils {
                 public ListenableFuture<Void> apply(final Optional<FlowCapableNode> flowCapNodeOpt) throws Exception {
                     if (flowCapNodeOpt.isPresent()) {
                         for (final Table tableData : flowCapNodeOpt.get().getTable()) {
-                            final Table table = new TableBuilder(tableData).setFlow(Collections.<Flow> emptyList()).build();
+                            final Table table = new TableBuilder(tableData).setFlow(Collections.<Flow>emptyList()).build();
                             final InstanceIdentifier<Table> iiToTable = flowCapableNodePath.child(Table.class, tableData.getKey());
-                            deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, iiToTable, table);
+                            txFacade.writeToTransaction(LogicalDatastoreType.OPERATIONAL, iiToTable, table);
                         }
                     }
-                    deviceContext.getDeviceFlowRegistry().removeMarked();
+                    registry.removeMarked();
                     readTx.close();
                     return Futures.immediateFuture(null);
                 }
@@ -310,9 +339,9 @@ public final class StatisticsGatheringUtils {
         return Futures.immediateFuture(null);
     }
 
-    private static void processQueueStatistics(final Iterable<QueueStatisticsUpdate> data, final DeviceContext deviceContext) {
+    private static void processQueueStatistics(final Iterable<QueueStatisticsUpdate> data, final DeviceContext deviceContext) throws Exception {
         // TODO: clean all queues of all node-connectors before writing up-to-date stats
-        final InstanceIdentifier<Node> nodeIdent = deviceContext.getDeviceState().getNodeInstanceIdentifier();
+        final InstanceIdentifier<Node> nodeIdent = deviceContext.getDeviceInfo().getNodeInstanceIdentifier();
         for (final QueueStatisticsUpdate queueStatisticsUpdate : data) {
             for (final QueueIdAndStatisticsMap queueStat : queueStatisticsUpdate.getQueueIdAndStatisticsMap()) {
                 if (queueStat.getQueueId() != null) {
@@ -338,8 +367,8 @@ public final class StatisticsGatheringUtils {
         deviceContext.submitTransaction();
     }
 
-    private static void processFlowTableStatistics(final Iterable<FlowTableStatisticsUpdate> data, final DeviceContext deviceContext) {
-        final InstanceIdentifier<FlowCapableNode> fNodeIdent = assembleFlowCapableNodeInstanceIdentifier(deviceContext);
+    private static void processFlowTableStatistics(final Iterable<FlowTableStatisticsUpdate> data, final DeviceContext deviceContext) throws Exception {
+        final InstanceIdentifier<FlowCapableNode> fNodeIdent = assembleFlowCapableNodeInstanceIdentifier(deviceContext.getDeviceInfo());
         for (final FlowTableStatisticsUpdate flowTableStatisticsUpdate : data) {
 
             for (final FlowTableAndStatisticsMap tableStat : flowTableStatisticsUpdate.getFlowTableAndStatisticsMap()) {
@@ -352,8 +381,8 @@ public final class StatisticsGatheringUtils {
         deviceContext.submitTransaction();
     }
 
-    private static void processNodeConnectorStatistics(final Iterable<NodeConnectorStatisticsUpdate> data, final DeviceContext deviceContext) {
-        final InstanceIdentifier<Node> nodeIdent = deviceContext.getDeviceState().getNodeInstanceIdentifier();
+    private static void processNodeConnectorStatistics(final Iterable<NodeConnectorStatisticsUpdate> data, final DeviceContext deviceContext) throws Exception {
+        final InstanceIdentifier<Node> nodeIdent = deviceContext.getDeviceInfo().getNodeInstanceIdentifier();
         for (final NodeConnectorStatisticsUpdate nodeConnectorStatisticsUpdate : data) {
             for (final NodeConnectorStatisticsAndPortNumberMap nConnectPort : nodeConnectorStatisticsUpdate.getNodeConnectorStatisticsAndPortNumberMap()) {
                 final FlowCapableNodeConnectorStatistics stats = new FlowCapableNodeConnectorStatisticsBuilder(nConnectPort).build();
@@ -370,8 +399,8 @@ public final class StatisticsGatheringUtils {
     }
 
     private static void processMetersStatistics(final Iterable<MeterStatisticsUpdated> data,
-                                                final DeviceContext deviceContext) {
-        final InstanceIdentifier<FlowCapableNode> fNodeIdent = assembleFlowCapableNodeInstanceIdentifier(deviceContext);
+                                                final DeviceContext deviceContext) throws Exception {
+        final InstanceIdentifier<FlowCapableNode> fNodeIdent = assembleFlowCapableNodeInstanceIdentifier(deviceContext.getDeviceInfo());
         for (final MeterStatisticsUpdated meterStatisticsUpdated : data) {
             for (final MeterStats mStat : meterStatisticsUpdated.getMeterStats()) {
                 final MeterStatistics stats = new MeterStatisticsBuilder(mStat).build();
@@ -386,7 +415,7 @@ public final class StatisticsGatheringUtils {
         deviceContext.submitTransaction();
     }
 
-    private static void deleteAllKnownMeters(final DeviceContext deviceContext, final InstanceIdentifier<FlowCapableNode> fNodeIdent) {
+    private static void deleteAllKnownMeters(final DeviceContext deviceContext, final InstanceIdentifier<FlowCapableNode> fNodeIdent) throws Exception {
         for (final MeterId meterId : deviceContext.getDeviceMeterRegistry().getAllMeterIds()) {
             final InstanceIdentifier<Meter> meterIdent = fNodeIdent.child(Meter.class, new MeterKey(meterId));
             deviceContext.addDeleteToTxChain(LogicalDatastoreType.OPERATIONAL, meterIdent);
@@ -394,9 +423,9 @@ public final class StatisticsGatheringUtils {
         deviceContext.getDeviceMeterRegistry().removeMarked();
     }
 
-    private static void processGroupDescStats(final Iterable<GroupDescStatsUpdated> data, final DeviceContext deviceContext) {
+    private static void processGroupDescStats(final Iterable<GroupDescStatsUpdated> data, final DeviceContext deviceContext) throws Exception {
         final InstanceIdentifier<FlowCapableNode> fNodeIdent =
-                deviceContext.getDeviceState().getNodeInstanceIdentifier().augmentation(FlowCapableNode.class);
+                deviceContext.getDeviceInfo().getNodeInstanceIdentifier().augmentation(FlowCapableNode.class);
         deleteAllKnownGroups(deviceContext, fNodeIdent);
 
         for (final GroupDescStatsUpdated groupDescStatsUpdated : data) {
@@ -416,7 +445,7 @@ public final class StatisticsGatheringUtils {
         deviceContext.submitTransaction();
     }
 
-    private static void deleteAllKnownGroups(final DeviceContext deviceContext, final InstanceIdentifier<FlowCapableNode> fNodeIdent) {
+    private static void deleteAllKnownGroups(final DeviceContext deviceContext, final InstanceIdentifier<FlowCapableNode> fNodeIdent) throws Exception {
         for (final GroupId groupId : deviceContext.getDeviceGroupRegistry().getAllGroupIds()) {
             final InstanceIdentifier<Group> groupIdent = fNodeIdent.child(Group.class, new GroupKey(groupId));
             deviceContext.addDeleteToTxChain(LogicalDatastoreType.OPERATIONAL, groupIdent);
@@ -424,8 +453,8 @@ public final class StatisticsGatheringUtils {
         deviceContext.getDeviceGroupRegistry().removeMarked();
     }
 
-    private static void processGroupStatistics(final Iterable<GroupStatisticsUpdated> data, final DeviceContext deviceContext) {
-        final InstanceIdentifier<FlowCapableNode> fNodeIdent = assembleFlowCapableNodeInstanceIdentifier(deviceContext);
+    private static void processGroupStatistics(final Iterable<GroupStatisticsUpdated> data, final DeviceContext deviceContext) throws Exception {
+        final InstanceIdentifier<FlowCapableNode> fNodeIdent = assembleFlowCapableNodeInstanceIdentifier(deviceContext.getDeviceInfo());
         for (final GroupStatisticsUpdated groupStatistics : data) {
             for (final GroupStats groupStats : groupStatistics.getGroupStats()) {
 
@@ -441,7 +470,57 @@ public final class StatisticsGatheringUtils {
         deviceContext.submitTransaction();
     }
 
-    private static InstanceIdentifier<FlowCapableNode> assembleFlowCapableNodeInstanceIdentifier(final DeviceContext deviceContext) {
-        return deviceContext.getDeviceState().getNodeInstanceIdentifier().augmentation(FlowCapableNode.class);
+    private static InstanceIdentifier<FlowCapableNode> assembleFlowCapableNodeInstanceIdentifier(final DeviceInfo deviceInfo) {
+        return deviceInfo.getNodeInstanceIdentifier().augmentation(FlowCapableNode.class);
+    }
+
+    /**
+     * Writes snapshot gathering start timestamp + cleans end mark
+     *
+     * @param deviceContext txManager + node path keeper
+     */
+    static void markDeviceStateSnapshotStart(final DeviceContext deviceContext) {
+        final InstanceIdentifier<FlowCapableStatisticsGatheringStatus> statusPath = deviceContext.getDeviceInfo()
+                .getNodeInstanceIdentifier().augmentation(FlowCapableStatisticsGatheringStatus.class);
+
+        final SimpleDateFormat simpleDateFormat = new SimpleDateFormat(DATE_AND_TIME_FORMAT);
+        final FlowCapableStatisticsGatheringStatus gatheringStatus = new FlowCapableStatisticsGatheringStatusBuilder()
+                .setSnapshotGatheringStatusStart(new SnapshotGatheringStatusStartBuilder()
+                        .setBegin(new DateAndTime(simpleDateFormat.format(new Date())))
+                        .build())
+                .setSnapshotGatheringStatusEnd(null) // TODO: reconsider if really need to clean end mark here
+                .build();
+        try {
+            deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, statusPath, gatheringStatus);
+        } catch (final Exception e) {
+            LOG.warn("Can't write to transaction: {}", e);
+        }
+
+        deviceContext.submitTransaction();
+    }
+
+    /**
+     * Writes snapshot gathering end timestamp + outcome
+     *
+     * @param deviceContext txManager + node path keeper
+     * @param succeeded     outcome of currently finished gathering
+     */
+    static void markDeviceStateSnapshotEnd(final DeviceContext deviceContext, final boolean succeeded) {
+        final InstanceIdentifier<SnapshotGatheringStatusEnd> statusEndPath = deviceContext.getDeviceInfo()
+                .getNodeInstanceIdentifier().augmentation(FlowCapableStatisticsGatheringStatus.class)
+                .child(SnapshotGatheringStatusEnd.class);
+
+        final SimpleDateFormat simpleDateFormat = new SimpleDateFormat(DATE_AND_TIME_FORMAT);
+        final SnapshotGatheringStatusEnd gatheringStatus = new SnapshotGatheringStatusEndBuilder()
+                .setEnd(new DateAndTime(simpleDateFormat.format(new Date())))
+                .setSucceeded(succeeded)
+                .build();
+        try {
+            deviceContext.writeToTransaction(LogicalDatastoreType.OPERATIONAL, statusEndPath, gatheringStatus);
+        } catch (Exception e) {
+            LOG.warn("Can't write to transaction: {}", e);
+        }
+
+        deviceContext.submitTransaction();
     }
 }