Bug 5596 Cleaning part 1
[openflowplugin.git] / openflowplugin-impl / src / main / java / org / opendaylight / openflowplugin / impl / device / DeviceContextImpl.java
index 28f0bf1499ff5e320b61c9bebfac3df61aac5f21..63f97c73afcd8f04e90a77758e2048e324f9f121 100644 (file)
@@ -8,10 +8,8 @@
 package org.opendaylight.openflowplugin.impl.device;
 
 import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Function;
 import com.google.common.base.Preconditions;
 import com.google.common.base.Verify;
-import com.google.common.util.concurrent.AsyncFunction;
 import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
@@ -20,14 +18,14 @@ import java.math.BigInteger;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.atomic.AtomicLong;
-import javax.annotation.CheckForNull;
+import java.util.concurrent.ExecutionException;
 import javax.annotation.Nonnull;
 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
 import org.opendaylight.controller.md.sal.binding.api.NotificationPublishService;
 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.TransactionChainClosedException;
+import org.opendaylight.mdsal.singleton.common.api.ServiceGroupIdentifier;
 import org.opendaylight.openflowjava.protocol.api.connection.ConnectionAdapter;
 import org.opendaylight.openflowjava.protocol.api.connection.OutboundQueue;
 import org.opendaylight.openflowjava.protocol.api.keys.MessageTypeKey;
@@ -35,6 +33,7 @@ import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionContext
 import org.opendaylight.openflowplugin.api.openflow.connection.OutboundQueueProvider;
 import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
 import org.opendaylight.openflowplugin.api.openflow.device.DeviceInfo;
+import org.opendaylight.openflowplugin.api.openflow.device.DeviceManager;
 import org.opendaylight.openflowplugin.api.openflow.device.DeviceState;
 import org.opendaylight.openflowplugin.api.openflow.device.MessageTranslator;
 import org.opendaylight.openflowplugin.api.openflow.device.RequestContext;
@@ -51,9 +50,7 @@ import org.opendaylight.openflowplugin.api.openflow.registry.flow.FlowRegistryKe
 import org.opendaylight.openflowplugin.api.openflow.registry.group.DeviceGroupRegistry;
 import org.opendaylight.openflowplugin.api.openflow.registry.meter.DeviceMeterRegistry;
 import org.opendaylight.openflowplugin.api.openflow.rpc.ItemLifeCycleKeeper;
-import org.opendaylight.openflowplugin.api.openflow.rpc.RpcContext;
 import org.opendaylight.openflowplugin.api.openflow.rpc.listener.ItemLifecycleListener;
-import org.opendaylight.openflowplugin.api.openflow.statistics.StatisticsContext;
 import org.opendaylight.openflowplugin.api.openflow.statistics.ofpspecific.MessageSpy;
 import org.opendaylight.openflowplugin.extension.api.ConvertorMessageFromOFJava;
 import org.opendaylight.openflowplugin.extension.api.ExtensionConverterProviderKeeper;
@@ -68,7 +65,7 @@ import org.opendaylight.openflowplugin.impl.registry.flow.FlowRegistryKeyFactory
 import org.opendaylight.openflowplugin.impl.registry.group.DeviceGroupRegistryImpl;
 import org.opendaylight.openflowplugin.impl.registry.meter.DeviceMeterRegistryImpl;
 import org.opendaylight.openflowplugin.impl.util.DeviceInitializationUtils;
-import org.opendaylight.openflowplugin.impl.util.MdSalRegistrationUtils;
+import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.ConvertorExecutor;
 import org.opendaylight.openflowplugin.openflow.md.core.session.SwitchConnectionCookieOFImpl;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.experimenter.message.service.rev151020.ExperimenterMessageFromDevBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
@@ -77,7 +74,6 @@ import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.ta
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowKey;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorRef;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnectorBuilder;
@@ -98,7 +94,6 @@ import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.experimenter
 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketReceived;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.FlowCapableNodeConnectorStatisticsData;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.FlowCapableNodeConnectorStatisticsDataBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.role.service.rev150727.OfpRole;
 import org.opendaylight.yangtools.yang.binding.DataObject;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
@@ -108,7 +103,7 @@ import org.slf4j.LoggerFactory;
 /**
  *
  */
-public class DeviceContextImpl implements DeviceContext, ExtensionConverterProviderKeeper {
+public class DeviceContextImpl implements DeviceContext, ExtensionConverterProviderKeeper{
 
     private static final Logger LOG = LoggerFactory.getLogger(DeviceContextImpl.class);
 
@@ -137,67 +132,61 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
     private final MessageTranslator<PacketInMessage, PacketReceived> packetInTranslator;
     private final MessageTranslator<FlowRemoved, org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowRemoved> flowRemovedTranslator;
     private final TranslatorLibrary translatorLibrary;
-    private final Map<Long, NodeConnectorRef> nodeConnectorCache;
     private final ItemLifeCycleRegistry itemLifeCycleSourceRegistry;
-    private RpcContext rpcContext;
     private ExtensionConverterProvider extensionConverterProvider;
+    private final DeviceManager deviceManager;
 
-    private final boolean switchFeaturesMandatory;
-    private StatisticsContext statisticsContext;
-
+    private boolean switchFeaturesMandatory;
     private final DeviceInfo deviceInfo;
-
-    private volatile DEVICE_CONTEXT_STATE deviceCtxState;
-    private boolean isStatisticsRpcEnabled;
-
-
-    @VisibleForTesting
-    DeviceContextImpl(@Nonnull final ConnectionContext primaryConnectionContext,
-                      @Nonnull final DeviceState deviceState,
-                      @Nonnull final DataBroker dataBroker,
-                      @Nonnull final LifecycleConductor conductor,
-                      @Nonnull final OutboundQueueProvider outboundQueueProvider,
-                      @Nonnull final TranslatorLibrary translatorLibrary,
-                      final boolean switchFeaturesMandatory) {
-        this.switchFeaturesMandatory = switchFeaturesMandatory;
+    private final ConvertorExecutor convertorExecutor;
+    private volatile CONTEXT_STATE state;
+
+    public DeviceContextImpl(
+            @Nonnull final ConnectionContext primaryConnectionContext,
+            @Nonnull final DataBroker dataBroker,
+            @Nonnull final LifecycleConductor conductor,
+            @Nonnull final OutboundQueueProvider outboundQueueProvider,
+            @Nonnull final TranslatorLibrary translatorLibrary,
+            @Nonnull final DeviceManager manager,
+           final ConvertorExecutor convertorExecutor) {
         this.primaryConnectionContext = Preconditions.checkNotNull(primaryConnectionContext);
-        this.deviceState = Preconditions.checkNotNull(deviceState);
+        this.deviceInfo = primaryConnectionContext.getDeviceInfo();
+        this.deviceState = new DeviceStateImpl();
         this.dataBroker = Preconditions.checkNotNull(dataBroker);
         Preconditions.checkNotNull(conductor);
         this.outboundQueueProvider = Preconditions.checkNotNull(outboundQueueProvider);
-        this.transactionChainManager = new TransactionChainManager(dataBroker, deviceState, conductor);
+        this.transactionChainManager = new TransactionChainManager(dataBroker, deviceInfo , conductor);
         auxiliaryConnectionContexts = new HashMap<>();
-        deviceFlowRegistry = new DeviceFlowRegistryImpl();
+        deviceFlowRegistry = new DeviceFlowRegistryImpl(dataBroker, deviceInfo.getNodeInstanceIdentifier());
         deviceGroupRegistry = new DeviceGroupRegistryImpl();
         deviceMeterRegistry = new DeviceMeterRegistryImpl();
         messageSpy = conductor.getMessageIntelligenceAgency();
+        this.deviceManager = Preconditions.checkNotNull(manager);
 
         packetInLimiter = new PacketInRateLimiter(primaryConnectionContext.getConnectionAdapter(),
                 /*initial*/ 1000, /*initial*/2000, messageSpy, REJECTED_DRAIN_FACTOR);
 
         this.translatorLibrary = translatorLibrary;
         portStatusTranslator = translatorLibrary.lookupTranslator(
-                new TranslatorKey(deviceState.getVersion(), PortGrouping.class.getName()));
+                new TranslatorKey(deviceInfo.getVersion(), PortGrouping.class.getName()));
         packetInTranslator = translatorLibrary.lookupTranslator(
-                new TranslatorKey(deviceState.getVersion(), PacketIn.class.getName()));
+                new TranslatorKey(deviceInfo.getVersion(), PacketIn.class.getName()));
         flowRemovedTranslator = translatorLibrary.lookupTranslator(
-                new TranslatorKey(deviceState.getVersion(), FlowRemoved.class.getName()));
-
-
-        nodeConnectorCache = new ConcurrentHashMap<>();
+                new TranslatorKey(deviceInfo.getVersion(), FlowRemoved.class.getName()));
 
         itemLifeCycleSourceRegistry = new ItemLifeCycleRegistryImpl();
         flowLifeCycleKeeper = new ItemLifeCycleSourceImpl();
         itemLifeCycleSourceRegistry.registerLifeCycleSource(flowLifeCycleKeeper);
-        deviceCtxState = DEVICE_CONTEXT_STATE.INITIALIZATION;
-        deviceInfo = primaryConnectionContext.getDeviceInfo();
+        this.state = CONTEXT_STATE.INITIALIZATION;
+        this.convertorExecutor = convertorExecutor;
     }
 
     /**
      * This method is called from {@link DeviceManagerImpl} only. So we could say "posthandshake process finish"
      * and we are able to set a scheduler for an automatic transaction submitting by time (0,5sec).
      */
-    void initialSubmitTransaction() {
+    @Override
+    public void initialSubmitTransaction() {
         transactionChainManager.initialSubmitWriteTransaction();
     }
 
@@ -220,7 +209,7 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
     public void removeAuxiliaryConnectionContext(final ConnectionContext connectionContext) {
         final SwitchConnectionDistinguisher connectionDistinguisher = createConnectionDistinguisher(connectionContext);
         LOG.debug("auxiliary connection dropped: {}, nodeId:{}", connectionContext.getConnectionAdapter()
-                .getRemoteAddress(), deviceInfo.getNodeId());
+                .getRemoteAddress(), getDeviceInfo().getNodeId());
         auxiliaryConnectionContexts.remove(connectionDistinguisher);
     }
 
@@ -234,113 +223,22 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
         return dataBroker.newReadOnlyTransaction();
     }
 
-    @Override
-    public ListenableFuture<Void> onClusterRoleChange(final OfpRole oldRole, @CheckForNull final OfpRole role) {
-        LOG.trace("onClusterRoleChange {} for node:", role, deviceInfo.getNodeId());
-        Preconditions.checkArgument(role != null);
-        if (role.equals(oldRole)) {
-            LOG.debug("Demanded role change for device {} is not changed. OldRole: {}, NewRole {}", deviceInfo.getNodeId(), oldRole, role);
-            return Futures.immediateFuture(null);
-        }
-        if (OfpRole.BECOMEMASTER.equals(role)) {
-            return onDeviceTakeClusterLeadership();
-        } else if (OfpRole.BECOMESLAVE.equals(role)) {
-            return onDeviceLostClusterLeadership();
-        } else {
-            LOG.warn("Unknown OFCluster Role {} for Node {}", role, deviceInfo.getNodeId());
-            if (null != rpcContext) {
-                MdSalRegistrationUtils.unregisterServices(rpcContext);
-            }
-            return transactionChainManager.deactivateTransactionManager();
-        }
-    }
-
-    @Override
-    public ListenableFuture<Void> onDeviceLostClusterLeadership() {
-        LOG.trace("onDeviceLostClusterLeadership for node: {}", deviceInfo.getNodeId());
-        if (null != rpcContext) {
-            MdSalRegistrationUtils.registerSlaveServices(rpcContext, OfpRole.BECOMESLAVE);
-        }
-        return transactionChainManager.deactivateTransactionManager();
-    }
-
-    @Override
-    public ListenableFuture<Void> onDeviceTakeClusterLeadership() {
-        LOG.trace("onDeviceTakeClusterLeadership for node: {}", deviceInfo.getNodeId());
-        /* validation */
-        if (statisticsContext == null) {
-            final String errMsg = String.format("DeviceCtx %s is up but we are missing StatisticsContext", deviceInfo.getDatapathId());
-            LOG.warn(errMsg);
-            return Futures.immediateFailedFuture(new IllegalStateException(errMsg));
-        }
-        if (rpcContext == null) {
-            final String errMsg = String.format("DeviceCtx %s is up but we are missing RpcContext", deviceInfo.getDatapathId());
-            LOG.warn(errMsg);
-            return Futures.immediateFailedFuture(new IllegalStateException(errMsg));
-        }
-        /* Routed RPC registration */
-        MdSalRegistrationUtils.registerMasterServices(getRpcContext(), DeviceContextImpl.this, OfpRole.BECOMEMASTER);
-
-        if (isStatisticsRpcEnabled) {
-            MdSalRegistrationUtils.registerStatCompatibilityServices(getRpcContext(), this,
-                    notificationPublishService, new AtomicLong());
-        }
-
-        /* Prepare init info collecting */
-        getDeviceState().setDeviceSynchronized(false);
-        transactionChainManager.activateTransactionManager();
-        /* Init Collecting NodeInfo */
-        final ListenableFuture<Void> initCollectingDeviceInfo = DeviceInitializationUtils.initializeNodeInformation(
-                DeviceContextImpl.this, switchFeaturesMandatory);
-        /* Init Collecting StatInfo */
-        final ListenableFuture<Boolean> statPollFuture = Futures.transform(initCollectingDeviceInfo,
-                new AsyncFunction<Void, Boolean>() {
-
-                    @Override
-                    public ListenableFuture<Boolean> apply(@Nonnull final Void input) throws Exception {
-                        getStatisticsContext().statListForCollectingInitialization();
-                        return getStatisticsContext().gatherDynamicData();
-                    }
-                });
-
-        return Futures.transform(statPollFuture, new Function<Boolean, Void>() {
-
-            @Override
-            public Void apply(final Boolean input) {
-                if (ConnectionContext.CONNECTION_STATE.RIP.equals(getPrimaryConnectionContext().getConnectionState())) {
-                    final String errMsg = String.format("We lost connection for Device %s, context has to be closed.",
-                            getDeviceState().getNodeId());
-                    LOG.warn(errMsg);
-                    throw new IllegalStateException(errMsg);
-                }
-                if (!input) {
-                    final String errMsg = String.format("Get Initial Device %s information fails",
-                            getDeviceState().getNodeId());
-                    LOG.warn(errMsg);
-                    throw new IllegalStateException(errMsg);
-                }
-                LOG.debug("Get Initial Device {} information is successful", deviceInfo.getNodeId());
-                getDeviceState().setDeviceSynchronized(true);
-                initialSubmitTransaction();
-                getDeviceState().setStatisticsPollingEnabledProp(true);
-                return null;
-            }
-        });
-    }
-
     @Override
     public <T extends DataObject> void writeToTransaction(final LogicalDatastoreType store,
-                                                          final InstanceIdentifier<T> path, final T data) throws Exception {
+                                                          final InstanceIdentifier<T> path,
+                                                          final T data){
         transactionChainManager.writeToTransaction(store, path, data, false);
     }
 
     @Override
-    public <T extends DataObject> void writeToTransactionWithParentsSlow(LogicalDatastoreType store, InstanceIdentifier<T> path, T data) throws Exception {
+    public <T extends DataObject> void writeToTransactionWithParentsSlow(final LogicalDatastoreType store,
+                                                                         final InstanceIdentifier<T> path,
+                                                                         final T data){
         transactionChainManager.writeToTransaction(store, path, data, true);
     }
 
     @Override
-    public <T extends DataObject> void addDeleteToTxChain(final LogicalDatastoreType store, final InstanceIdentifier<T> path) throws Exception {
+    public <T extends DataObject> void addDeleteToTxChain(final LogicalDatastoreType store, final InstanceIdentifier<T> path) throws TransactionChainClosedException {
         transactionChainManager.addDeleteOperationTotTxChain(store, path);
     }
 
@@ -392,11 +290,19 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
 
     @Override
     public void processFlowRemovedMessage(final FlowRemoved flowRemoved) {
+        //1. translate to general flow (table, priority, match, cookie)
+        final org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowRemoved flowRemovedNotification =
+                flowRemovedTranslator.translate(flowRemoved, deviceInfo, null);
+
+        if(!deviceManager.getIsNotificationFlowRemovedOff()) {
+            // Trigger off a notification
+            notificationPublishService.offerNotification(flowRemovedNotification);
+        } else if(LOG.isDebugEnabled()) {
+            LOG.debug("For nodeId={} isNotificationFlowRemovedOff={}", getDeviceInfo().getNodeId(), deviceManager.getIsNotificationFlowRemovedOff());
+        }
+
         final ItemLifecycleListener itemLifecycleListener = flowLifeCycleKeeper.getItemLifecycleListener();
         if (itemLifecycleListener != null) {
-            //1. translate to general flow (table, priority, match, cookie)
-            final org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowRemoved flowRemovedNotification =
-                    flowRemovedTranslator.translate(flowRemoved, this.getDeviceState(), null);
             //2. create registry key
             final FlowRegistryKey flowRegKey = FlowRegistryKeyFactory.create(flowRemovedNotification);
             //3. lookup flowId
@@ -404,17 +310,15 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
             //4. if flowId present:
             if (flowDescriptor != null) {
                 // a) construct flow path
-                final KeyedInstanceIdentifier<Flow, FlowKey> flowPath = getDeviceState().getNodeInstanceIdentifier()
+                final KeyedInstanceIdentifier<Flow, FlowKey> flowPath = getDeviceInfo().getNodeInstanceIdentifier()
                         .augmentation(FlowCapableNode.class)
                         .child(Table.class, flowDescriptor.getTableKey())
                         .child(Flow.class, new FlowKey(flowDescriptor.getFlowId()));
                 // b) notify listener
                 itemLifecycleListener.onRemoved(flowPath);
-                // c) trigger off a notification
-                notificationPublishService.offerNotification(flowRemovedNotification);
             } else {
                 LOG.debug("flow id not found: nodeId={} tableId={}, priority={}",
-                        getDeviceState().getNodeId(), flowRegKey.getTableId(), flowRemovedNotification.getPriority());
+                        getDeviceInfo().getNodeId(), flowRegKey.getTableId(), flowRemovedNotification.getPriority());
             }
         }
     }
@@ -422,7 +326,7 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
     @Override
     public void processPortStatusMessage(final PortStatusMessage portStatus) {
         messageSpy.spyMessage(portStatus.getImplementedInterface(), MessageSpy.STATISTIC_GROUP.FROM_SWITCH_PUBLISHED_SUCCESS);
-        final FlowCapableNodeConnector flowCapableNodeConnector = portStatusTranslator.translate(portStatus, this.getDeviceState(), null);
+        final FlowCapableNodeConnector flowCapableNodeConnector = portStatusTranslator.translate(portStatus, getDeviceInfo(), null);
 
         final KeyedInstanceIdentifier<NodeConnector, NodeConnectorKey> iiToNodeConnector = provideIIToNodeConnector(portStatus.getPortNo(), portStatus.getVersion());
         try {
@@ -437,13 +341,13 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
             }
             submitTransaction();
         } catch (final Exception e) {
-            LOG.warn("Error processing port status message: {}", e.getMessage());
+            LOG.warn("Error processing port status message: ", e);
         }
     }
 
     private KeyedInstanceIdentifier<NodeConnector, NodeConnectorKey> provideIIToNodeConnector(final long portNo, final short version) {
-        final InstanceIdentifier<Node> iiToNodes = deviceState.getNodeInstanceIdentifier();
-        final BigInteger dataPathId = deviceState.getFeatures().getDatapathId();
+        final InstanceIdentifier<Node> iiToNodes = getDeviceInfo().getNodeInstanceIdentifier();
+        final BigInteger dataPathId = getDeviceInfo().getDatapathId();
         final NodeConnectorId nodeConnectorId = NodeStaticReplyTranslatorUtil.nodeConnectorId(dataPathId.toString(), portNo, version);
         return iiToNodes.child(NodeConnector.class, new NodeConnectorKey(nodeConnectorId));
     }
@@ -452,7 +356,7 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
     public void processPacketInMessage(final PacketInMessage packetInMessage) {
         messageSpy.spyMessage(packetInMessage.getImplementedInterface(), MessageSpy.STATISTIC_GROUP.FROM_SWITCH);
         final ConnectionAdapter connectionAdapter = getPrimaryConnectionContext().getConnectionAdapter();
-        final PacketReceived packetReceived = packetInTranslator.translate(packetInMessage, this.getDeviceState(), null);
+        final PacketReceived packetReceived = packetInTranslator.translate(packetInMessage, getDeviceInfo(), null);
 
         if (packetReceived == null) {
             LOG.debug("Received a null packet from switch {}", connectionAdapter.getRemoteAddress());
@@ -500,13 +404,13 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
         // lookup converter
         final ExperimenterDataOfChoice vendorData = notification.getExperimenterDataOfChoice();
         final MessageTypeKey<? extends ExperimenterDataOfChoice> key = new MessageTypeKey<>(
-                deviceState.getVersion(),
+                getDeviceInfo().getVersion(),
                 (Class<? extends ExperimenterDataOfChoice>) vendorData.getImplementedInterface());
         final ConvertorMessageFromOFJava<ExperimenterDataOfChoice, MessagePath> messageConverter = extensionConverterProvider.getMessageConverter(key);
         if (messageConverter == null) {
             LOG.warn("custom converter for {}[OF:{}] not found",
                     notification.getExperimenterDataOfChoice().getImplementedInterface(),
-                    deviceState.getVersion());
+                    getDeviceInfo().getVersion());
             return;
         }
         // build notification
@@ -514,7 +418,7 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
         try {
             messageOfChoice = messageConverter.convert(vendorData, MessagePath.MESSAGE_NOTIFICATION);
             final ExperimenterMessageFromDevBuilder experimenterMessageFromDevBld = new ExperimenterMessageFromDevBuilder()
-                .setNode(new NodeRef(deviceState.getNodeInstanceIdentifier()))
+                .setNode(new NodeRef(getDeviceInfo().getNodeInstanceIdentifier()))
                     .setExperimenterMessageOfChoice(messageOfChoice);
             // publish
             notificationPublishService.offerNotification(experimenterMessageFromDevBld.build());
@@ -532,7 +436,7 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
     public synchronized void close() {
         LOG.debug("closing deviceContext: {}, nodeId:{}",
                 getPrimaryConnectionContext().getConnectionAdapter().getRemoteAddress(),
-                getDeviceState().getNodeId());
+                getDeviceInfo().getNodeId());
         // NOOP
         throw new UnsupportedOperationException("Autocloseble.close will be removed soon");
     }
@@ -559,8 +463,8 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
 
     @Override
     public void onPublished() {
-        Verify.verify(DEVICE_CONTEXT_STATE.INITIALIZATION.equals(deviceCtxState));
-        deviceCtxState = DEVICE_CONTEXT_STATE.WORKING;
+        Verify.verify(CONTEXT_STATE.INITIALIZATION.equals(getState()));
+        setState(CONTEXT_STATE.WORKING);
         primaryConnectionContext.getConnectionAdapter().setPacketInFiltering(false);
         for (final ConnectionContext switchAuxConnectionContext : auxiliaryConnectionContexts.values()) {
             switchAuxConnectionContext.getConnectionAdapter().setPacketInFiltering(false);
@@ -572,18 +476,6 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
         return new MultiMsgCollectorImpl(this, requestContext);
     }
 
-    @Override
-    public NodeConnectorRef lookupNodeConnectorRef(final Long portNumber) {
-        return nodeConnectorCache.get(portNumber);
-    }
-
-    @Override
-    public void storeNodeConnectorRef(@Nonnull final Long portNumber, @Nonnull final NodeConnectorRef nodeConnectorRef) {
-        nodeConnectorCache.put(
-                Preconditions.checkNotNull(portNumber),
-                Preconditions.checkNotNull(nodeConnectorRef));
-    }
-
     @Override
     public void updatePacketInRateLimit(final long upperBound) {
         packetInLimiter.changeWaterMarks((int) (LOW_WATERMARK_FACTOR * upperBound), (int) (HIGH_WATERMARK_FACTOR * upperBound));
@@ -594,16 +486,6 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
         return itemLifeCycleSourceRegistry;
     }
 
-    @Override
-    public void setRpcContext(final RpcContext rpcContext) {
-        this.rpcContext = rpcContext;
-    }
-
-    @Override
-    public RpcContext getRpcContext() {
-        return rpcContext;
-    }
-
     @Override
     public void setExtensionConverterProvider(final ExtensionConverterProvider extensionConverterProvider) {
         this.extensionConverterProvider = extensionConverterProvider;
@@ -614,28 +496,17 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
         return extensionConverterProvider;
     }
 
-    @Override
-    public void setStatisticsContext(final StatisticsContext statisticsContext) {
-        this.statisticsContext = statisticsContext;
-    }
-
-    @Override
-    public StatisticsContext getStatisticsContext() {
-        return statisticsContext;
-    }
-
     @Override
     public synchronized void shutdownConnection() {
-        LOG.debug("Shutdown method for node {}", deviceInfo.getNodeId());
-        deviceState.setValid(false);
-        if (DEVICE_CONTEXT_STATE.TERMINATION.equals(deviceCtxState)) {
-            LOG.debug("DeviceCtx for Node {} is in termination process.", deviceInfo.getNodeId());
+        LOG.debug("Shutdown method for node {}", getDeviceInfo().getNodeId());
+        if (CONTEXT_STATE.TERMINATION.equals(getState())) {
+            LOG.debug("DeviceCtx for Node {} is in termination process.", getDeviceInfo().getNodeId());
             return;
         }
-        deviceCtxState = DEVICE_CONTEXT_STATE.TERMINATION;
+        setState(CONTEXT_STATE.TERMINATION);
 
         if (ConnectionContext.CONNECTION_STATE.RIP.equals(getPrimaryConnectionContext().getConnectionState())) {
-            LOG.debug("ConnectionCtx for Node {} is in RIP state.", deviceState.getNodeId());
+            LOG.debug("ConnectionCtx for Node {} is in RIP state.", getDeviceInfo().getNodeId());
             return;
         }
         /* Terminate Auxiliary Connection */
@@ -652,23 +523,50 @@ public class DeviceContextImpl implements DeviceContext, ExtensionConverterProvi
     }
 
     @Override
-    public void setStatisticsRpcEnabled(boolean isStatisticsRpcEnabled) {
-        this.isStatisticsRpcEnabled = isStatisticsRpcEnabled;
+    public ListenableFuture<Void> shuttingDownDataStoreTransactions() {
+        return transactionChainManager.shuttingDown();
+    }
+
+    @VisibleForTesting
+    TransactionChainManager getTransactionChainManager() {
+        return this.transactionChainManager;
     }
 
     @Override
-    public DEVICE_CONTEXT_STATE getDeviceContextState() {
-        return deviceCtxState;
+    public void setSwitchFeaturesMandatory(boolean switchFeaturesMandatory) {
+        this.switchFeaturesMandatory = switchFeaturesMandatory;
     }
 
     @Override
-    public ListenableFuture<Void> shuttingDownDataStoreTransactions() {
-        deviceState.setValid(false);
-        return transactionChainManager.shuttingDown();
+    public CONTEXT_STATE getState() {
+        return this.state;
     }
 
-    @VisibleForTesting
-    TransactionChainManager getTransactionChainManager() {
-        return this.transactionChainManager;
+    @Override
+    public void setState(CONTEXT_STATE state) {
+        this.state = state;
+    }
+
+    @Override
+    public void startupClusterServices() throws ExecutionException, InterruptedException {
+        LOG.debug("Initializing transaction chain manager for node {}", getDeviceInfo().getNodeId());
+        this.transactionChainManager.activateTransactionManager();
+        LOG.debug("Waiting to get node {} information", getDeviceInfo().getNodeId());
+        DeviceInitializationUtils.initializeNodeInformation(this, switchFeaturesMandatory, this.convertorExecutor).get();
+    }
+
+    @Override
+    public ListenableFuture<Void> stopClusterServices() {
+        return this.transactionChainManager.deactivateTransactionManager();
+    }
+
+    @Override
+    public ServiceGroupIdentifier getServiceIdentifier() {
+        return this.deviceInfo.getServiceIdentifier();
+    }
+
+    @Override
+    public DeviceInfo getDeviceInfo() {
+        return this.deviceInfo;
     }
 }