Bump mdsal to 5.0.2
[openflowplugin.git] / applications / forwardingrules-manager / src / main / java / org / opendaylight / openflowplugin / applications / frm / impl / FlowNodeReconciliationImpl.java
index 7fbbca5943f63db0861e88401f89460cb620e4b6..b3ef2f2f0bf1b125676548537f864e5b1f8171f3 100644 (file)
@@ -1,22 +1,21 @@
-/**
+/*
  * Copyright (c) 2014, 2017 Cisco Systems, Inc. and others.  All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
  * and is available at http://www.eclipse.org/legal/epl-v10.html
  */
-
 package org.opendaylight.openflowplugin.applications.frm.impl;
 
-import com.google.common.base.Optional;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.Lists;
-import com.google.common.util.concurrent.CheckedFuture;
+import com.google.common.util.concurrent.FluentFuture;
 import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.JdkFutureAdapters;
 import com.google.common.util.concurrent.ListenableFuture;
 import com.google.common.util.concurrent.MoreExecutors;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import java.math.BigInteger;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -25,19 +24,18 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.ListIterator;
 import java.util.Map;
+import java.util.Optional;
 import java.util.concurrent.Callable;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
-import java.util.concurrent.Future;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
 import java.util.concurrent.atomic.AtomicLong;
-import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
-import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
+import org.opendaylight.mdsal.binding.api.DataBroker;
+import org.opendaylight.mdsal.binding.api.ReadTransaction;
+import org.opendaylight.mdsal.binding.api.WriteTransaction;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
 import org.opendaylight.openflowplugin.api.OFConstants;
 import org.opendaylight.openflowplugin.api.openflow.device.DeviceInfo;
 import org.opendaylight.openflowplugin.applications.frm.FlowNodeReconciliation;
@@ -70,23 +68,20 @@ import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group
 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.StaleGroupKey;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.types.rev130918.MeterId;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.AddBundleMessagesInput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.AddBundleMessagesInputBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.AddBundleMessagesOutput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.ControlBundleInput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.ControlBundleInputBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.ControlBundleOutput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.SalBundleService;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.add.bundle.messages.input.Messages;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.add.bundle.messages.input.MessagesBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.add.bundle.messages.input.messages.Message;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.add.bundle.messages.input.messages.MessageBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.bundle.inner.message.grouping.bundle.inner.message.BundleAddFlowCaseBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.bundle.inner.message.grouping.bundle.inner.message.BundleAddGroupCaseBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.bundle.inner.message.grouping.bundle.inner.message.BundleRemoveFlowCaseBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.bundle.inner.message.grouping.bundle.inner.message.BundleRemoveGroupCaseBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.bundle.inner.message.grouping.bundle.inner.message.bundle.add.flow._case.AddFlowCaseDataBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.bundle.inner.message.grouping.bundle.inner.message.bundle.add.group._case.AddGroupCaseDataBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.bundle.inner.message.grouping.bundle.inner.message.bundle.remove.flow._case.RemoveFlowCaseDataBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.bundle.service.rev170124.bundle.inner.message.grouping.bundle.inner.message.bundle.remove.group._case.RemoveGroupCaseDataBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.onf.rev170124.BundleControlType;
@@ -98,6 +93,7 @@ import org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.table
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
 import org.opendaylight.yangtools.yang.common.RpcResult;
+import org.opendaylight.yangtools.yang.common.Uint32;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -109,6 +105,7 @@ import org.slf4j.LoggerFactory;
 public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
 
     private static final Logger LOG = LoggerFactory.getLogger(FlowNodeReconciliationImpl.class);
+    private static final Logger OF_EVENT_LOG = LoggerFactory.getLogger("OfEventLog");
 
     // The number of nanoseconds to wait for a single group to be added.
     private static final long ADD_GROUP_TIMEOUT = TimeUnit.SECONDS.toNanos(3);
@@ -150,15 +147,14 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
         }
     }
 
-    private ListenableFuture<Boolean> reconcileConfiguration(InstanceIdentifier<FlowCapableNode> connectedNode) {
+    @Override
+    public ListenableFuture<Boolean> reconcileConfiguration(InstanceIdentifier<FlowCapableNode> connectedNode) {
         LOG.info("Triggering reconciliation for device {}", connectedNode.firstKeyOf(Node.class));
         if (provider.isStaleMarkingEnabled()) {
             LOG.info("Stale-Marking is ENABLED and proceeding with deletion of " + "stale-marked entities on switch {}",
                     connectedNode.toString());
             reconciliationPreProcess(connectedNode);
         }
-        LOG.debug("Bundle based reconciliation status : {}",
-                provider.isBundleBasedReconciliationEnabled() ? "Enable" : "Disable");
         if (provider.isBundleBasedReconciliationEnabled()) {
             BundleBasedReconciliationTask bundleBasedReconTask = new BundleBasedReconciliationTask(connectedNode);
             return JdkFutureAdapters.listenInPoolThread(executor.submit(bundleBasedReconTask));
@@ -177,13 +173,12 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
 
         @Override
         public Boolean call() {
-            String node = nodeIdentity.firstKeyOf(Node.class, NodeKey.class).getId().getValue();
-            Optional<FlowCapableNode> flowNode = Optional.absent();
+            String node = nodeIdentity.firstKeyOf(Node.class).getId().getValue();
+            Optional<FlowCapableNode> flowNode = Optional.empty();
             BundleId bundleIdValue = new BundleId(BUNDLE_ID.getAndIncrement());
             BigInteger dpnId = getDpnIdFromNodeName(node);
-            LOG.debug("Triggering bundle based reconciliation for device :{}", dpnId);
-            ReadOnlyTransaction trans = provider.getReadTranaction();
-            try {
+            LOG.info("Triggering bundle based reconciliation for device : {}", dpnId);
+            try (ReadTransaction trans = provider.getReadTransaction()) {
                 flowNode = trans.read(LogicalDatastoreType.CONFIGURATION, nodeIdentity).get();
             } catch (ExecutionException | InterruptedException e) {
                 LOG.error("Error occurred while reading the configuration data store for node {}", nodeIdentity, e);
@@ -191,8 +186,13 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
 
             if (flowNode.isPresent()) {
                 LOG.debug("FlowNode present for Datapath ID {}", dpnId);
+                OF_EVENT_LOG.debug("Bundle Reconciliation Start, Node: {}", dpnId);
                 final NodeRef nodeRef = new NodeRef(nodeIdentity.firstIdentifierOf(Node.class));
 
+                final ControlBundleInput closeBundleInput = new ControlBundleInputBuilder().setNode(nodeRef)
+                        .setBundleId(bundleIdValue).setFlags(BUNDLE_FLAGS)
+                        .setType(BundleControlType.ONFBCTCLOSEREQUEST).build();
+
                 final ControlBundleInput openBundleInput = new ControlBundleInputBuilder().setNode(nodeRef)
                         .setBundleId(bundleIdValue).setFlags(BUNDLE_FLAGS).setType(BundleControlType.ONFBCTOPENREQUEST)
                         .build();
@@ -201,28 +201,48 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
                         .setBundleId(bundleIdValue).setFlags(BUNDLE_FLAGS)
                         .setType(BundleControlType.ONFBCTCOMMITREQUEST).build();
 
-                final AddBundleMessagesInput addBundleMessagesInput = new AddBundleMessagesInputBuilder()
+                final AddBundleMessagesInput deleteAllFlowGroupsInput = new AddBundleMessagesInputBuilder()
                         .setNode(nodeRef).setBundleId(bundleIdValue).setFlags(BUNDLE_FLAGS)
-                        .setMessages(createMessages(nodeRef, flowNode)).build();
-
-                Future<RpcResult<Void>> openBundle = salBundleService.controlBundle(openBundleInput);
+                        .setMessages(createMessages(nodeRef)).build();
+
+                LOG.debug("Closing openflow bundle for device {}", dpnId);
+                /* Close previously opened bundle on the openflow switch if any */
+                ListenableFuture<RpcResult<ControlBundleOutput>> closeBundle
+                        = salBundleService.controlBundle(closeBundleInput);
+
+                /* Open a new bundle on the switch */
+                ListenableFuture<RpcResult<ControlBundleOutput>> openBundle =
+                        Futures.transformAsync(closeBundle,
+                            rpcResult -> salBundleService.controlBundle(openBundleInput),
+                            MoreExecutors.directExecutor());
+
+                /* Push groups and flows via bundle add messages */
+                ListenableFuture<RpcResult<AddBundleMessagesOutput>> deleteAllFlowGroupsFuture
+                        = Futures.transformAsync(openBundle, rpcResult -> {
+                            if (rpcResult.isSuccessful()) {
+                                return salBundleService.addBundleMessages(deleteAllFlowGroupsInput);
+                            }
+                            return Futures.immediateFuture(null);
+                        }, MoreExecutors.directExecutor());
 
-                ListenableFuture<RpcResult<Void>> addBundleMessagesFuture = Futures
-                        .transformAsync(JdkFutureAdapters.listenInPoolThread(openBundle), rpcResult -> {
+                /* Push flows and groups via bundle add messages */
+                Optional<FlowCapableNode> finalFlowNode = flowNode;
+                ListenableFuture<List<RpcResult<AddBundleMessagesOutput>>> addbundlesFuture
+                        = Futures.transformAsync(deleteAllFlowGroupsFuture, rpcResult -> {
                             if (rpcResult.isSuccessful()) {
-                                return JdkFutureAdapters
-                                        .listenInPoolThread(salBundleService.addBundleMessages(addBundleMessagesInput));
+                                LOG.debug("Adding delete all flow/group message is successful for device {}", dpnId);
+                                return Futures.allAsList(addBundleMessages(finalFlowNode.get(), bundleIdValue,
+                                        nodeIdentity));
                             }
                             return Futures.immediateFuture(null);
-                        });
-                ListenableFuture<RpcResult<Void>> commitBundleFuture = Futures.transformAsync(addBundleMessagesFuture,
-                    rpcResult -> {
-                        if (rpcResult.isSuccessful()) {
-                            return JdkFutureAdapters
-                                    .listenInPoolThread(salBundleService.controlBundle(commitBundleInput));
-                        }
-                        return Futures.immediateFuture(null);
-                    });
+                        }, MoreExecutors.directExecutor());
+
+                /* Commit the bundle on the openflow switch */
+                ListenableFuture<RpcResult<ControlBundleOutput>> commitBundleFuture = Futures.transformAsync(
+                        addbundlesFuture, rpcResult -> {
+                        LOG.debug("Adding bundle messages completed for device {}", dpnId);
+                        return salBundleService.controlBundle(commitBundleInput);
+                    }, MoreExecutors.directExecutor());
 
                 /* Bundles not supported for meters */
                 List<Meter> meters = flowNode.get().getMeter() != null ? flowNode.get().getMeter()
@@ -232,23 +252,25 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
                         if (rpcResult.isSuccessful()) {
                             for (Meter meter : meters) {
                                 final KeyedInstanceIdentifier<Meter, MeterKey> meterIdent = nodeIdentity
-                                        .child(Meter.class, meter.getKey());
+                                        .child(Meter.class, meter.key());
                                 provider.getMeterCommiter().add(meterIdent, meter, nodeIdentity);
                             }
                         }
                         return Futures.immediateFuture(null);
-                    });
-
-                trans.close();
+                    }, MoreExecutors.directExecutor());
                 try {
-                    if (commitBundleFuture.get().isSuccessful()) {
+                    RpcResult<ControlBundleOutput> bundleFuture = commitBundleFuture.get();
+                    if (bundleFuture != null && bundleFuture.isSuccessful()) {
                         LOG.debug("Completing bundle based reconciliation for device ID:{}", dpnId);
+                        OF_EVENT_LOG.debug("Bundle Reconciliation Finish, Node: {}", dpnId);
                         return true;
                     } else {
+                        LOG.error("commit bundle failed for device {} with error {}", dpnId,
+                                commitBundleFuture.get().getErrors());
                         return false;
                     }
                 } catch (InterruptedException | ExecutionException e) {
-                    LOG.error("Error while doing bundle based reconciliation for device ID:{}", nodeIdentity);
+                    LOG.error("Error while doing bundle based reconciliation for device ID:{}", dpnId);
                     return false;
                 }
             }
@@ -261,6 +283,8 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
     public ListenableFuture<Boolean> startReconciliation(DeviceInfo node) {
         InstanceIdentifier<FlowCapableNode> connectedNode = node.getNodeInstanceIdentifier()
                 .augmentation(FlowCapableNode.class);
+        // Clearing the group registry cache for the connected node if exists
+        provider.getDevicesGroupRegistry().clearNodeGroups(node.getNodeId());
         return futureMap.computeIfAbsent(node, future -> reconcileConfiguration(connectedNode));
     }
 
@@ -296,14 +320,14 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
 
         @Override
         public Boolean call() {
-            String node = nodeIdentity.firstKeyOf(Node.class, NodeKey.class).getId().getValue();
+            String node = nodeIdentity.firstKeyOf(Node.class).getId().getValue();
             BigInteger dpnId = getDpnIdFromNodeName(node);
+            OF_EVENT_LOG.debug("Reconciliation Start, Node: {}", dpnId);
 
-            ReadOnlyTransaction trans = provider.getReadTranaction();
-            Optional<FlowCapableNode> flowNode = Optional.absent();
+            Optional<FlowCapableNode> flowNode;
             // initialize the counter
             int counter = 0;
-            try {
+            try (ReadTransaction trans = provider.getReadTransaction()) {
                 flowNode = trans.read(LogicalDatastoreType.CONFIGURATION, nodeIdentity).get();
             } catch (ExecutionException | InterruptedException e) {
                 LOG.warn("Fail with read Config/DS for Node {} !", nodeIdentity, e);
@@ -318,7 +342,7 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
                         ? flowNode.get().getTableFeatures()
                         : Collections.<TableFeatures>emptyList();
                 for (TableFeatures tableFeaturesItem : tableList) {
-                    TableFeaturesKey tableKey = tableFeaturesItem.getKey();
+                    TableFeaturesKey tableKey = tableFeaturesItem.key();
                     KeyedInstanceIdentifier<TableFeatures, TableFeaturesKey> tableFeaturesII = nodeIdentity
                             .child(TableFeatures.class, new TableFeaturesKey(tableKey.getTableId()));
                     provider.getTableFeaturesCommiter().update(tableFeaturesII, tableFeaturesItem, null, nodeIdentity);
@@ -332,7 +356,7 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
                 // new list for suspected groups pointing to ports .. when the ports come up
                 // late
                 List<Group> suspectedGroups = new ArrayList<>();
-                Map<Long, ListenableFuture<?>> groupFutures = new HashMap<>();
+                Map<Uint32, ListenableFuture<?>> groupFutures = new HashMap<>();
 
                 while ((!toBeInstalledGroups.isEmpty() || !suspectedGroups.isEmpty())
                         && counter <= provider.getReconciliationRetryCount()) { // also check if the counter has not
@@ -361,7 +385,7 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
                             }
                             for (Action action : actions) {
                                 // chained-port
-                                if (action.getAction().getImplementedInterface().getName()
+                                if (action.getAction().implementedInterface().getName()
                                         .equals("org.opendaylight.yang.gen.v1.urn.opendaylight"
                                                 + ".action.types.rev131112.action.action.OutputActionCase")) {
                                     String nodeConnectorUri = ((OutputActionCase) action.getAction()).getOutputAction()
@@ -385,11 +409,12 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
                                                 nodeConnectorUri, group.getGroupId().toString());
                                         break;
                                     }
-                                } else if (action.getAction().getImplementedInterface().getName()
+                                } else if (action.getAction().implementedInterface().getName()
                                         .equals("org.opendaylight.yang.gen.v1.urn.opendaylight"
                                                 + ".action.types.rev131112.action.action.GroupActionCase")) {
                                     // chained groups
-                                    Long groupId = ((GroupActionCase) action.getAction()).getGroupAction().getGroupId();
+                                    Uint32 groupId = ((GroupActionCase) action.getAction()).getGroupAction()
+                                            .getGroupId();
                                     ListenableFuture<?> future = groupFutures.get(groupId);
                                     if (future == null) {
                                         okToInstall = false;
@@ -430,7 +455,7 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
                         : Collections.<Meter>emptyList();
                 for (Meter meter : meters) {
                     final KeyedInstanceIdentifier<Meter, MeterKey> meterIdent = nodeIdentity.child(Meter.class,
-                            meter.getKey());
+                            meter.key());
                     provider.getMeterCommiter().add(meterIdent, meter, nodeIdentity);
                 }
 
@@ -441,19 +466,20 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
                 /* Flows */
                 List<Table> tables = flowNode.get().getTable() != null ? flowNode.get().getTable()
                         : Collections.<Table>emptyList();
+                int flowCount = 0;
                 for (Table table : tables) {
                     final KeyedInstanceIdentifier<Table, TableKey> tableIdent = nodeIdentity.child(Table.class,
-                            table.getKey());
+                            table.key());
                     List<Flow> flows = table.getFlow() != null ? table.getFlow() : Collections.<Flow>emptyList();
+                    flowCount += flows.size();
                     for (Flow flow : flows) {
                         final KeyedInstanceIdentifier<Flow, FlowKey> flowIdent = tableIdent.child(Flow.class,
-                                flow.getKey());
+                                flow.key());
                         provider.getFlowCommiter().add(flowIdent, flow, nodeIdentity);
                     }
                 }
+                OF_EVENT_LOG.debug("Reconciliation Finish, Node: {}, flow count: {}", dpnId, flowCount);
             }
-            /* clean transaction */
-            trans.close();
             return true;
         }
 
@@ -466,9 +492,9 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
          * @param group
          *            The group to add.
          */
-        private void addGroup(Map<Long, ListenableFuture<?>> map, Group group) {
-            KeyedInstanceIdentifier<Group, GroupKey> groupIdent = nodeIdentity.child(Group.class, group.getKey());
-            final Long groupId = group.getGroupId().getValue();
+        private void addGroup(Map<Uint32, ListenableFuture<?>> map, Group group) {
+            KeyedInstanceIdentifier<Group, GroupKey> groupIdent = nodeIdentity.child(Group.class, group.key());
+            final Uint32 groupId = group.getGroupId().getValue();
             ListenableFuture<?> future = JdkFutureAdapters
                     .listenInPoolThread(provider.getGroupCommiter().add(groupIdent, group, nodeIdentity));
 
@@ -483,9 +509,8 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
 
                 @Override
                 public void onFailure(Throwable cause) {
-                    String msg = "add-group RPC failed: node=" + nodeIdentity.firstKeyOf(Node.class).getId().getValue()
-                            + ", id=" + groupId;
-                    LOG.debug(msg, cause);
+                    LOG.debug("add-group RPC failed: node={}, id={}",
+                            nodeIdentity.firstKeyOf(Node.class).getId().getValue(), groupId, cause);
                 }
             }, MoreExecutors.directExecutor());
 
@@ -526,6 +551,8 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
         }
     }
 
+    @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
+            justification = "https://github.com/spotbugs/spotbugs/issues/811")
     private BigInteger getDpnIdFromNodeName(String nodeName) {
 
         String dpId = nodeName.substring(nodeName.lastIndexOf(SEPARATOR) + 1);
@@ -537,10 +564,9 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
         List<InstanceIdentifier<StaleGroup>> staleGroupsToBeBulkDeleted = Lists.newArrayList();
         List<InstanceIdentifier<StaleMeter>> staleMetersToBeBulkDeleted = Lists.newArrayList();
 
-        ReadOnlyTransaction trans = provider.getReadTranaction();
-        Optional<FlowCapableNode> flowNode = Optional.absent();
+        Optional<FlowCapableNode> flowNode = Optional.empty();
 
-        try {
+        try (ReadTransaction trans = provider.getReadTransaction()) {
             flowNode = trans.read(LogicalDatastoreType.CONFIGURATION, nodeIdent).get();
         } catch (ExecutionException | InterruptedException e) {
             LOG.warn("Reconciliation Pre-Processing Fail with read Config/DS for Node {} !", nodeIdent, e);
@@ -555,7 +581,7 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
                     : Collections.<Table>emptyList();
             for (Table table : tables) {
                 final KeyedInstanceIdentifier<Table, TableKey> tableIdent = nodeIdent.child(Table.class,
-                        table.getKey());
+                        table.key());
                 List<StaleFlow> staleFlows = table.getStaleFlow() != null ? table.getStaleFlow()
                         : Collections.<StaleFlow>emptyList();
                 for (StaleFlow staleFlow : staleFlows) {
@@ -564,7 +590,7 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
                     Flow toBeDeletedFlow = flowBuilder.setId(staleFlow.getId()).build();
 
                     final KeyedInstanceIdentifier<Flow, FlowKey> flowIdent = tableIdent.child(Flow.class,
-                            toBeDeletedFlow.getKey());
+                            toBeDeletedFlow.key());
 
                     this.provider.getFlowCommiter().remove(flowIdent, toBeDeletedFlow, nodeIdent);
 
@@ -588,7 +614,7 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
                 Group toBeDeletedGroup = groupBuilder.setGroupId(staleGroup.getGroupId()).build();
 
                 final KeyedInstanceIdentifier<Group, GroupKey> groupIdent = nodeIdent.child(Group.class,
-                        toBeDeletedGroup.getKey());
+                        toBeDeletedGroup.key());
 
                 this.provider.getGroupCommiter().remove(groupIdent, toBeDeletedGroup, nodeIdent);
 
@@ -607,7 +633,7 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
                 Meter toBeDeletedMeter = meterBuilder.setMeterId(staleMeter.getMeterId()).build();
 
                 final KeyedInstanceIdentifier<Meter, MeterKey> meterIdent = nodeIdent.child(Meter.class,
-                        toBeDeletedMeter.getKey());
+                        toBeDeletedMeter.key());
 
                 this.provider.getMeterCommiter().remove(meterIdent, toBeDeletedMeter, nodeIdent);
 
@@ -615,8 +641,6 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
             }
 
         }
-        /* clean transaction */
-        trans.close();
 
         LOG.debug("Deleting all stale-marked flows/groups/meters of for switch {} in Configuration DS",
                 nodeIdent.toString());
@@ -633,7 +657,7 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
             writeTransaction.delete(LogicalDatastoreType.CONFIGURATION, staleFlowIId);
         }
 
-        CheckedFuture<Void, TransactionCommitFailedException> submitFuture = writeTransaction.submit();
+        FluentFuture<?> submitFuture = writeTransaction.commit();
         handleStaleEntityDeletionResultFuture(submitFuture);
     }
 
@@ -644,7 +668,7 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
             writeTransaction.delete(LogicalDatastoreType.CONFIGURATION, staleGroupIId);
         }
 
-        CheckedFuture<Void, TransactionCommitFailedException> submitFuture = writeTransaction.submit();
+        FluentFuture<?> submitFuture = writeTransaction.commit();
         handleStaleEntityDeletionResultFuture(submitFuture);
     }
 
@@ -655,7 +679,7 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
             writeTransaction.delete(LogicalDatastoreType.CONFIGURATION, staleMeterIId);
         }
 
-        CheckedFuture<Void, TransactionCommitFailedException> submitFuture = writeTransaction.submit();
+        FluentFuture<?> submitFuture = writeTransaction.commit();
         handleStaleEntityDeletionResultFuture(submitFuture);
     }
 
@@ -679,17 +703,38 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
         return nodeIdent.child(StaleMeter.class, new StaleMeterKey(new MeterId(staleMeter.getMeterId())));
     }
 
-    private void handleStaleEntityDeletionResultFuture(
-            CheckedFuture<Void, TransactionCommitFailedException> submitFuture) {
-        Futures.addCallback(submitFuture, new FutureCallback<Void>() {
+    @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
+            justification = "https://github.com/spotbugs/spotbugs/issues/811")
+    private List<ListenableFuture<RpcResult<AddBundleMessagesOutput>>> addBundleMessages(final FlowCapableNode flowNode,
+                                                         final BundleId bundleIdValue,
+                                                         final InstanceIdentifier<FlowCapableNode> nodeIdentity) {
+        List<ListenableFuture<RpcResult<AddBundleMessagesOutput>>> futureList = new ArrayList<>();
+        for (Group group : flowNode.nonnullGroup()) {
+            final KeyedInstanceIdentifier<Group, GroupKey> groupIdent = nodeIdentity.child(Group.class, group.key());
+            futureList.add(provider.getBundleGroupListener().add(groupIdent, group, nodeIdentity, bundleIdValue));
+        }
+
+        for (Table table : flowNode.nonnullTable()) {
+            final KeyedInstanceIdentifier<Table, TableKey> tableIdent = nodeIdentity.child(Table.class, table.key());
+            for (Flow flow : table.nonnullFlow()) {
+                final KeyedInstanceIdentifier<Flow, FlowKey> flowIdent = tableIdent.child(Flow.class, flow.key());
+                futureList.add(provider.getBundleFlowListener().add(flowIdent, flow, nodeIdentity, bundleIdValue));
+            }
+        }
+        OF_EVENT_LOG.debug("Flow/Group count is {}", futureList.size());
+        return futureList;
+    }
+
+    private void handleStaleEntityDeletionResultFuture(FluentFuture<?> submitFuture) {
+        submitFuture.addCallback(new FutureCallback<Object>() {
             @Override
-            public void onSuccess(Void result) {
+            public void onSuccess(Object result) {
                 LOG.debug("Stale entity removal success");
             }
 
             @Override
             public void onFailure(Throwable throwable) {
-                LOG.debug("Stale entity removal failed {}", throwable);
+                LOG.debug("Stale entity removal failed", throwable);
             }
         }, MoreExecutors.directExecutor());
     }
@@ -707,7 +752,9 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
         return groupBuilder.build();
     }
 
-    private Messages createMessages(final NodeRef nodeRef, final Optional<FlowCapableNode> flowNode) {
+    @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
+            justification = "https://github.com/spotbugs/spotbugs/issues/811")
+    private Messages createMessages(final NodeRef nodeRef) {
         final List<Message> messages = new ArrayList<>();
         messages.add(new MessageBuilder().setNode(nodeRef)
                 .setBundleInnerMessage(new BundleRemoveFlowCaseBuilder()
@@ -718,27 +765,6 @@ public class FlowNodeReconciliationImpl implements FlowNodeReconciliation {
                 .setBundleInnerMessage(new BundleRemoveGroupCaseBuilder()
                         .setRemoveGroupCaseData(new RemoveGroupCaseDataBuilder(getDeleteAllGroup()).build()).build())
                 .build());
-
-        if (flowNode.get().getGroup() != null) {
-            for (Group gr : flowNode.get().getGroup()) {
-                messages.add(new MessageBuilder().setNode(nodeRef).setBundleInnerMessage(new BundleAddGroupCaseBuilder()
-                        .setAddGroupCaseData(new AddGroupCaseDataBuilder(gr).build()).build()).build());
-            }
-        }
-
-        if (flowNode.get().getTable() != null) {
-            for (Table table : flowNode.get().getTable()) {
-                for (Flow flow : table.getFlow()) {
-                    messages.add(
-                            new MessageBuilder().setNode(nodeRef)
-                                    .setBundleInnerMessage(new BundleAddFlowCaseBuilder()
-                                            .setAddFlowCaseData(new AddFlowCaseDataBuilder(flow).build()).build())
-                                    .build());
-                }
-            }
-        }
-
-        LOG.debug("The size of the flows and group messages created in createMessage() {}", messages.size());
         return new MessagesBuilder().setMessage(messages).build();
     }
 }