Bump mdsal to 5.0.2
[openflowplugin.git] / openflowplugin-impl / src / main / java / org / opendaylight / openflowplugin / impl / OpenFlowPluginProviderImpl.java
index 421c60ae8c31d54970c644b237dc34f887d58cc4..bb522226ba7f4daafaa2aa1b21272a24f7cb6c99 100644 (file)
@@ -5,28 +5,31 @@
  * 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.impl;
 
-import com.google.common.base.Preconditions;
+import com.google.common.annotations.VisibleForTesting;
 import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
+import com.google.common.util.concurrent.ListeningExecutorService;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.common.util.concurrent.SettableFuture;
 import io.netty.util.HashedWheelTimer;
 import io.netty.util.Timer;
 import java.lang.management.ManagementFactory;
 import java.util.Collection;
 import java.util.List;
-import java.util.Map;
-import java.util.Objects;
 import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Future;
 import java.util.concurrent.SynchronousQueue;
-import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
-import java.util.function.Consumer;
 import java.util.stream.Collectors;
-import javax.annotation.Nonnull;
+import javax.annotation.PostConstruct;
+import javax.annotation.PreDestroy;
+import javax.inject.Inject;
+import javax.inject.Singleton;
 import javax.management.InstanceAlreadyExistsException;
 import javax.management.InstanceNotFoundException;
 import javax.management.MBeanRegistrationException;
@@ -34,17 +37,25 @@ import javax.management.MBeanServer;
 import javax.management.MalformedObjectNameException;
 import javax.management.NotCompliantMBeanException;
 import javax.management.ObjectName;
-import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.controller.md.sal.binding.api.NotificationPublishService;
-import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipService;
-import org.opendaylight.controller.sal.binding.api.RpcProviderRegistry;
+import org.apache.aries.blueprint.annotation.service.Reference;
+import org.apache.aries.blueprint.annotation.service.Service;
+import org.opendaylight.infrautils.diagstatus.ServiceState;
+import org.opendaylight.infrautils.ready.SystemReadyListener;
+import org.opendaylight.infrautils.ready.SystemReadyMonitor;
+import org.opendaylight.mdsal.binding.api.DataBroker;
+import org.opendaylight.mdsal.binding.api.NotificationPublishService;
+import org.opendaylight.mdsal.binding.api.RpcProviderService;
+import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipService;
 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
+import org.opendaylight.openflowjava.protocol.api.connection.OpenflowDiagStatusProvider;
 import org.opendaylight.openflowjava.protocol.spi.connection.SwitchConnectionProvider;
-import org.opendaylight.openflowplugin.api.openflow.OpenFlowPluginConfigurationService;
+import org.opendaylight.openflowjava.protocol.spi.connection.SwitchConnectionProviderList;
 import org.opendaylight.openflowplugin.api.openflow.OpenFlowPluginProvider;
+import org.opendaylight.openflowplugin.api.openflow.configuration.ConfigurationService;
 import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionManager;
 import org.opendaylight.openflowplugin.api.openflow.device.DeviceManager;
-import org.opendaylight.openflowplugin.api.openflow.lifecycle.ContextChainHolder;
+import org.opendaylight.openflowplugin.api.openflow.mastership.MastershipChangeServiceManager;
+import org.opendaylight.openflowplugin.api.openflow.role.RoleManager;
 import org.opendaylight.openflowplugin.api.openflow.rpc.RpcManager;
 import org.opendaylight.openflowplugin.api.openflow.statistics.StatisticsManager;
 import org.opendaylight.openflowplugin.api.openflow.statistics.ofpspecific.MessageIntelligenceAgency;
@@ -52,6 +63,7 @@ import org.opendaylight.openflowplugin.extension.api.ExtensionConverterProviderK
 import org.opendaylight.openflowplugin.extension.api.ExtensionConverterRegistrator;
 import org.opendaylight.openflowplugin.extension.api.OpenFlowPluginExtensionRegistratorProvider;
 import org.opendaylight.openflowplugin.extension.api.core.extension.ExtensionConverterManager;
+import org.opendaylight.openflowplugin.impl.configuration.OpenFlowProviderConfigImpl;
 import org.opendaylight.openflowplugin.impl.connection.ConnectionManagerImpl;
 import org.opendaylight.openflowplugin.impl.device.DeviceManagerImpl;
 import org.opendaylight.openflowplugin.impl.device.initialization.DeviceInitializerProvider;
@@ -59,20 +71,27 @@ import org.opendaylight.openflowplugin.impl.device.initialization.DeviceInitiali
 import org.opendaylight.openflowplugin.impl.lifecycle.ContextChainHolderImpl;
 import org.opendaylight.openflowplugin.impl.protocol.deserialization.DeserializerInjector;
 import org.opendaylight.openflowplugin.impl.protocol.serialization.SerializerInjector;
+import org.opendaylight.openflowplugin.impl.role.RoleManagerImpl;
 import org.opendaylight.openflowplugin.impl.rpc.RpcManagerImpl;
 import org.opendaylight.openflowplugin.impl.statistics.StatisticsManagerImpl;
 import org.opendaylight.openflowplugin.impl.statistics.ofpspecific.MessageIntelligenceAgencyImpl;
 import org.opendaylight.openflowplugin.impl.statistics.ofpspecific.MessageIntelligenceAgencyMXBean;
+import org.opendaylight.openflowplugin.impl.util.ThreadPoolLoggingExecutor;
 import org.opendaylight.openflowplugin.impl.util.TranslatorLibraryUtil;
-import org.opendaylight.openflowplugin.openflow.md.core.ThreadPoolLoggingExecutor;
 import org.opendaylight.openflowplugin.openflow.md.core.extension.ExtensionConverterManagerImpl;
 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.ConvertorManager;
 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.ConvertorManagerFactory;
 import org.opendaylight.openflowplugin.openflow.md.core.session.OFSessionUtil;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflow.provider.config.rev160510.OpenflowProviderConfig;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-public class OpenFlowPluginProviderImpl implements OpenFlowPluginProvider, OpenFlowPluginConfigurationService, OpenFlowPluginExtensionRegistratorProvider {
+@Singleton
+@Service(classes = { OpenFlowPluginProvider.class, OpenFlowPluginExtensionRegistratorProvider.class })
+public class OpenFlowPluginProviderImpl implements
+        OpenFlowPluginProvider,
+        OpenFlowPluginExtensionRegistratorProvider,
+        SystemReadyListener {
 
     private static final Logger LOG = LoggerFactory.getLogger(OpenFlowPluginProviderImpl.class);
 
@@ -86,52 +105,47 @@ public class OpenFlowPluginProviderImpl implements OpenFlowPluginProvider, OpenF
                     MessageIntelligenceAgencyMXBean.class.getPackage().getName(),
                     MessageIntelligenceAgencyMXBean.class.getSimpleName());
 
-    private final HashedWheelTimer hashedWheelTimer = new HashedWheelTimer(TICK_DURATION, TimeUnit.MILLISECONDS, TICKS_PER_WHEEL);
+    private final HashedWheelTimer hashedWheelTimer =
+            new HashedWheelTimer(TICK_DURATION, TimeUnit.MILLISECONDS, TICKS_PER_WHEEL);
     private final NotificationPublishService notificationPublishService;
     private final ExtensionConverterManager extensionConverterManager;
     private final DataBroker dataBroker;
     private final Collection<SwitchConnectionProvider> switchConnectionProviders;
     private final DeviceInitializerProvider deviceInitializerProvider;
     private final ConvertorManager convertorManager;
-    private final RpcProviderRegistry rpcProviderRegistry;
+    private final RpcProviderService rpcProviderRegistry;
     private final ClusterSingletonServiceProvider singletonServicesProvider;
+    private final OpenflowProviderConfig config;
     private final EntityOwnershipService entityOwnershipService;
-    private ContextChainHolder contextChainHolder;
-    private int rpcRequestsQuota;
-    private long globalNotificationQuota;
-    private long barrierInterval;
-    private int barrierCountLimit;
-    private long echoReplyTimeout;
+    private final MastershipChangeServiceManager mastershipChangeServiceManager;
     private DeviceManager deviceManager;
     private RpcManager rpcManager;
     private StatisticsManager statisticsManager;
+    private RoleManager roleManager;
     private ConnectionManager connectionManager;
-    private boolean switchFeaturesMandatory;
-    private boolean isStatisticsPollingOn;
-    private boolean isStatisticsRpcEnabled;
-    private boolean isFlowRemovedNotificationOn;
-    private boolean skipTableFeatures;
-    private long basicTimerDelay;
-    private long maximumTimerDelay;
-    private boolean useSingleLayerSerialization;
-    private ThreadPoolExecutor threadPool;
-    private int threadPoolMinThreads;
-    private int threadPoolMaxThreads;
-    private long threadPoolTimeout;
-    private boolean initialized = false;
+    private ListeningExecutorService executorService;
+    private ContextChainHolderImpl contextChainHolder;
+    private final OpenflowDiagStatusProvider openflowDiagStatusProvider;
+    private final SettableFuture<Void> fullyStarted = SettableFuture.create();
+    private static final String OPENFLOW_SERVICE_NAME = "OPENFLOW";
 
     public static MessageIntelligenceAgency getMessageIntelligenceAgency() {
         return MESSAGE_INTELLIGENCE_AGENCY;
     }
 
-    OpenFlowPluginProviderImpl(final List<SwitchConnectionProvider> switchConnectionProviders,
-                               final DataBroker dataBroker,
-                               final RpcProviderRegistry rpcProviderRegistry,
-                               final NotificationPublishService notificationPublishService,
-                               final ClusterSingletonServiceProvider singletonServiceProvider,
-                               final EntityOwnershipService entityOwnershipService) {
+    @Inject
+    public OpenFlowPluginProviderImpl(final ConfigurationService configurationService,
+                               final SwitchConnectionProviderList switchConnectionProviders,
+                               final PingPongDataBroker pingPongDataBroker,
+                               final @Reference RpcProviderService rpcProviderRegistry,
+                               final @Reference NotificationPublishService notificationPublishService,
+                               final @Reference ClusterSingletonServiceProvider singletonServiceProvider,
+                               final @Reference EntityOwnershipService entityOwnershipService,
+                               final MastershipChangeServiceManager mastershipChangeServiceManager,
+                               final @Reference OpenflowDiagStatusProvider openflowDiagStatusProvider,
+                               final @Reference SystemReadyMonitor systemReadyMonitor) {
         this.switchConnectionProviders = switchConnectionProviders;
-        this.dataBroker = dataBroker;
+        this.dataBroker = pingPongDataBroker;
         this.rpcProviderRegistry = rpcProviderRegistry;
         this.notificationPublishService = notificationPublishService;
         this.singletonServicesProvider = singletonServiceProvider;
@@ -139,14 +153,21 @@ public class OpenFlowPluginProviderImpl implements OpenFlowPluginProvider, OpenF
         convertorManager = ConvertorManagerFactory.createDefaultManager();
         extensionConverterManager = new ExtensionConverterManagerImpl();
         deviceInitializerProvider = DeviceInitializerProviderFactory.createDefaultProvider();
+        config = new OpenFlowProviderConfigImpl(configurationService);
+        this.mastershipChangeServiceManager = mastershipChangeServiceManager;
+        this.openflowDiagStatusProvider = openflowDiagStatusProvider;
+        systemReadyMonitor.registerListener(this);
+        LOG.info("registered onSystemBootReady() listener for deferred startSwitchConnections()");
     }
 
-
-    private void startSwitchConnections() {
+    @Override
+    public void onSystemBootReady() {
+        LOG.info("onSystemBootReady() received, starting the switch connections");
         Futures.addCallback(Futures.allAsList(switchConnectionProviders.stream().map(switchConnectionProvider -> {
             // Inject OpenFlowPlugin custom serializers and deserializers into OpenFlowJava
-            if (useSingleLayerSerialization) {
-                SerializerInjector.injectSerializers(switchConnectionProvider);
+            if (config.isUseSingleLayerSerialization()) {
+                SerializerInjector.injectSerializers(switchConnectionProvider,
+                        switchConnectionProvider.getConfiguration().isGroupAddModEnabled());
                 DeserializerInjector.injectDeserializers(switchConnectionProvider);
             } else {
                 DeserializerInjector.revertDeserializers(switchConnectionProvider);
@@ -159,25 +180,35 @@ public class OpenFlowPluginProviderImpl implements OpenFlowPluginProvider, OpenF
             @Override
             public void onSuccess(final List<Boolean> result) {
                 LOG.info("All switchConnectionProviders are up and running ({}).", result.size());
+                openflowDiagStatusProvider.reportStatus(OPENFLOW_SERVICE_NAME, ServiceState.OPERATIONAL);
+                fullyStarted.set(null);
             }
 
             @Override
-            public void onFailure(@Nonnull final Throwable throwable) {
+            public void onFailure(final Throwable throwable) {
                 LOG.warn("Some switchConnectionProviders failed to start.", throwable);
+                openflowDiagStatusProvider.reportStatus(OPENFLOW_SERVICE_NAME, throwable);
+                fullyStarted.setException(throwable);
             }
-        });
+        }, MoreExecutors.directExecutor());
+    }
+
+    @VisibleForTesting
+    public Future<Void> getFullyStarted() {
+        return fullyStarted;
     }
 
     private ListenableFuture<List<Boolean>> shutdownSwitchConnections() {
-        final ListenableFuture<List<Boolean>> listListenableFuture = Futures.allAsList(switchConnectionProviders.stream().map(switchConnectionProvider -> {
-            // Revert deserializers to their original state
-            if (useSingleLayerSerialization) {
-                DeserializerInjector.revertDeserializers(switchConnectionProvider);
-            }
+        final ListenableFuture<List<Boolean>> listListenableFuture =
+                Futures.allAsList(switchConnectionProviders.stream().map(switchConnectionProvider -> {
+                    // Revert deserializers to their original state
+                    if (config.isUseSingleLayerSerialization()) {
+                        DeserializerInjector.revertDeserializers(switchConnectionProvider);
+                    }
 
-            // Shutdown switch connection provider
-            return switchConnectionProvider.shutdown();
-        }).collect(Collectors.toSet()));
+                    // Shutdown switch connection provider
+                    return switchConnectionProvider.shutdown();
+                }).collect(Collectors.toSet()));
 
         Futures.addCallback(listListenableFuture, new FutureCallback<List<Boolean>>() {
             @Override
@@ -186,16 +217,19 @@ public class OpenFlowPluginProviderImpl implements OpenFlowPluginProvider, OpenF
             }
 
             @Override
-            public void onFailure(@Nonnull final Throwable throwable) {
+            public void onFailure(final Throwable throwable) {
                 LOG.warn("Some switchConnectionProviders failed to shutdown.", throwable);
             }
-        });
+        }, MoreExecutors.directExecutor());
 
         return listListenableFuture;
     }
 
     @Override
+    @PostConstruct
     public void initialize() {
+        registerMXBean(MESSAGE_INTELLIGENCE_AGENCY, MESSAGE_INTELLIGENCE_AGENCY_MX_BEAN_NAME);
+
         // TODO: copied from OpenFlowPluginProvider (Helium) misusesing the old way of distributing extension converters
         // TODO: rewrite later!
         OFSessionUtil.getSessionManager().setExtensionConverterProvider(extensionConverterManager);
@@ -203,297 +237,57 @@ public class OpenFlowPluginProviderImpl implements OpenFlowPluginProvider, OpenF
         // Creates a thread pool that creates new threads as needed, but will reuse previously
         // constructed threads when they are available.
         // Threads that have not been used for x seconds are terminated and removed from the cache.
-        threadPool = new ThreadPoolLoggingExecutor(
-                Preconditions.checkNotNull(threadPoolMinThreads),
-                Preconditions.checkNotNull(threadPoolMaxThreads),
-                Preconditions.checkNotNull(threadPoolTimeout),
-                TimeUnit.SECONDS, new SynchronousQueue<>(), POOL_NAME);
-
-
-        contextChainHolder = new ContextChainHolderImpl(hashedWheelTimer, threadPool);
-        contextChainHolder.changeEntityOwnershipService(entityOwnershipService);
-
-        connectionManager = new ConnectionManagerImpl(threadPool);
-        connectionManager.setEchoReplyTimeout(echoReplyTimeout);
-
-        registerMXBean(MESSAGE_INTELLIGENCE_AGENCY, MESSAGE_INTELLIGENCE_AGENCY_MX_BEAN_NAME);
-
-        contextChainHolder.addSingletonServicesProvider(singletonServicesProvider);
+        executorService = MoreExecutors.listeningDecorator(new ThreadPoolLoggingExecutor(
+                config.getThreadPoolMinThreads().toJava(),
+                config.getThreadPoolMaxThreads().getValue().toJava(),
+                config.getThreadPoolTimeout().toJava(),
+                TimeUnit.SECONDS, new SynchronousQueue<>(), POOL_NAME));
 
         deviceManager = new DeviceManagerImpl(
+                config,
                 dataBroker,
                 getMessageIntelligenceAgency(),
                 notificationPublishService,
                 hashedWheelTimer,
                 convertorManager,
                 deviceInitializerProvider,
-                useSingleLayerSerialization);
-
-        deviceManager.setGlobalNotificationQuota(globalNotificationQuota);
-        deviceManager.setSwitchFeaturesMandatory(switchFeaturesMandatory);
-        deviceManager.setBarrierInterval(barrierInterval);
-        deviceManager.setBarrierCountLimit(barrierCountLimit);
-        deviceManager.setFlowRemovedNotificationOn(isFlowRemovedNotificationOn);
-        deviceManager.setSkipTableFeatures(skipTableFeatures);
+                executorService);
 
+        TranslatorLibraryUtil.injectBasicTranslatorLibrary(deviceManager, convertorManager);
         ((ExtensionConverterProviderKeeper) deviceManager).setExtensionConverterProvider(extensionConverterManager);
 
-        rpcManager = new RpcManagerImpl(rpcProviderRegistry, extensionConverterManager, convertorManager, notificationPublishService);
-        rpcManager.setRpcRequestQuota(rpcRequestsQuota);
-
-        statisticsManager = new StatisticsManagerImpl(rpcProviderRegistry, hashedWheelTimer, convertorManager);
-        statisticsManager.setBasicTimerDelay(basicTimerDelay);
-        statisticsManager.setMaximumTimerDelay(maximumTimerDelay);
-        statisticsManager.setIsStatisticsPollingOn(isStatisticsPollingOn);
-
-        // Device connection handler moved from device manager to context holder
-        connectionManager.setDeviceConnectedHandler(contextChainHolder);
+        rpcManager = new RpcManagerImpl(
+                config,
+                rpcProviderRegistry,
+                extensionConverterManager,
+                convertorManager,
+                notificationPublishService);
 
-        /* Termination Phase ordering - OFP Device Context suite */
-        connectionManager.setDeviceDisconnectedHandler(contextChainHolder);
+        statisticsManager = new StatisticsManagerImpl(
+                config,
+                rpcProviderRegistry,
+                convertorManager,
+                executorService);
 
-        rpcManager.setStatisticsRpcEnabled(isStatisticsRpcEnabled);
+        roleManager = new RoleManagerImpl(hashedWheelTimer, config, executorService);
 
-        TranslatorLibraryUtil.injectBasicTranslatorLibrary(deviceManager, convertorManager);
-        deviceManager.initialize();
+        contextChainHolder = new ContextChainHolderImpl(
+                executorService,
+                singletonServicesProvider,
+                entityOwnershipService,
+                mastershipChangeServiceManager);
 
         contextChainHolder.addManager(deviceManager);
         contextChainHolder.addManager(statisticsManager);
         contextChainHolder.addManager(rpcManager);
+        contextChainHolder.addManager(roleManager);
 
-        startSwitchConnections();
-        initialized = true;
-    }
-
-
-    @Override
-    public void update(@Nonnull final Map<String, Object> properties) {
-        properties.forEach((key, value) -> {
-            final PropertyType propertyType = PropertyType.forValue(key);
-
-            if (Objects.nonNull(propertyType)) {
-                updateProperty(propertyType, value);
-            }
-        });
-    }
-
-    private void doPropertyUpdate(final PropertyType propertyType,
-                                  final boolean modifiable,
-                                  final Object origValue,
-                                  final Object newValue,
-                                  final Consumer<Object> successCallback) {
-        if (initialized) {
-            if (Objects.equals(origValue, newValue)) {
-                LOG.debug("{} config parameter is already set to {})", propertyType, origValue);
-                return;
-            } else if (!modifiable) {
-                LOG.warn("{} update ({} -> {}) is not allowed after controller start", propertyType, origValue, newValue);
-                return;
-            }
-        }
-
-        successCallback.accept(newValue);
-        LOG.info("{} config parameter is updated ({} -> {})", propertyType, origValue, newValue);
-    }
-
-    @Override
-    public void updateProperty(@Nonnull final PropertyType key, @Nonnull final Object value) {
-        try {
-            final String sValue = value.toString();
-            final Consumer<Object> successCallback;
-            final boolean modifiable;
-            final Object oldValue;
-            final Object newValue;
-
-            switch (key) {
-                case RPC_REQUESTS_QUOTA:
-                    successCallback = (result) -> {
-                        rpcRequestsQuota = (int) result;
-
-                        if (initialized) {
-                            rpcManager.setRpcRequestQuota(rpcRequestsQuota);
-                        }
-                    };
-
-                    oldValue = rpcRequestsQuota;
-                    newValue = Integer.valueOf(sValue);
-                    modifiable = true;
-                    break;
-                case SWITCH_FEATURES_MANDATORY:
-                    successCallback = (result) -> {
-                        switchFeaturesMandatory = (boolean) result;
-
-                        if (initialized) {
-                            deviceManager.setSwitchFeaturesMandatory(switchFeaturesMandatory);
-                        }
-                    };
-
-                    oldValue = switchFeaturesMandatory;
-                    newValue = Boolean.valueOf(sValue);
-                    modifiable = true;
-                    break;
-                case GLOBAL_NOTIFICATION_QUOTA:
-                    successCallback = (result) -> {
-                        globalNotificationQuota = (long) result;
-
-                        if (initialized) {
-                            deviceManager.setGlobalNotificationQuota(globalNotificationQuota);
-                        }
-                    };
-
-                    oldValue = globalNotificationQuota;
-                    newValue = Long.valueOf(sValue);
-                    modifiable = true;
-                    break;
-                case IS_STATISTICS_POLLING_ON:
-                    successCallback = (result) -> {
-                        isStatisticsPollingOn = (boolean) result;
-
-                        if (initialized) {
-                            statisticsManager.setIsStatisticsPollingOn(isStatisticsPollingOn);
-                        }
-                    };
-
-                    oldValue = isStatisticsPollingOn;
-                    newValue = Boolean.valueOf(sValue);
-                    modifiable = true;
-                    break;
-                case IS_STATISTICS_RPC_ENABLED:
-                    successCallback = (result) -> {
-                        isStatisticsRpcEnabled = (boolean) result;
-
-                        if (initialized) {
-                            rpcManager.setStatisticsRpcEnabled(isStatisticsRpcEnabled);
-                        }
-                    };
-
-                    oldValue = isStatisticsRpcEnabled;
-                    newValue = Boolean.valueOf(sValue);
-                    modifiable = true;
-                    break;
-                case BARRIER_INTERVAL_TIMEOUT_LIMIT:
-                    successCallback = (result) -> {
-                        barrierInterval = (long) result;
-
-                        if (initialized) {
-                            deviceManager.setBarrierInterval(barrierInterval);
-                        }
-                    };
-
-                    oldValue = barrierInterval;
-                    newValue = Long.valueOf(sValue);
-                    modifiable = true;
-                    break;
-                case BARRIER_COUNT_LIMIT:
-                    successCallback = (result) -> {
-                        barrierCountLimit = (int) result;
-
-                        if (initialized) {
-                            deviceManager.setBarrierCountLimit(barrierCountLimit);
-                        }
-                    };
-
-                    oldValue = barrierCountLimit;
-                    newValue = Integer.valueOf(sValue);
-                    modifiable = true;
-                    break;
-                case ECHO_REPLY_TIMEOUT:
-                    successCallback = (result) -> {
-                        echoReplyTimeout = (long) result;
-
-                        if (initialized) {
-                            connectionManager.setEchoReplyTimeout(echoReplyTimeout);
-                        }
-                    };
-
-                    oldValue = echoReplyTimeout;
-                    newValue = Long.valueOf(sValue);
-                    modifiable = true;
-                    break;
-                case THREAD_POOL_MIN_THREADS:
-                    successCallback = (result) -> threadPoolMinThreads = (int) result;
-                    oldValue = threadPoolMinThreads;
-                    newValue = Integer.valueOf(sValue);
-                    modifiable = false;
-                    break;
-                case THREAD_POOL_MAX_THREADS:
-                    successCallback = (result) -> threadPoolMaxThreads = (int) result;
-                    oldValue = threadPoolMaxThreads;
-                    newValue = Integer.valueOf(sValue);
-                    modifiable = false;
-                    break;
-                case THREAD_POOL_TIMEOUT:
-                    successCallback = (result) -> threadPoolTimeout = (long) result;
-                    oldValue = threadPoolTimeout;
-                    newValue = Long.valueOf(sValue);
-                    modifiable = false;
-                    break;
-                case ENABLE_FLOW_REMOVED_NOTIFICATION:
-                    successCallback = (result) -> {
-                        isFlowRemovedNotificationOn = (boolean) result;
-
-                        if (initialized) {
-                            deviceManager.setFlowRemovedNotificationOn(isFlowRemovedNotificationOn);
-                        }
-                    };
-
-                    oldValue = isFlowRemovedNotificationOn;
-                    newValue = Boolean.valueOf(sValue);
-                    modifiable = true;
-                    break;
-                case SKIP_TABLE_FEATURES:
-                    successCallback = (result) -> {
-                        skipTableFeatures = (boolean) result;
-
-                        if (initialized) {
-                            deviceManager.setSkipTableFeatures(skipTableFeatures);
-                        }
-                    };
-
-                    oldValue = skipTableFeatures;
-                    newValue = Boolean.valueOf(sValue);
-                    modifiable = true;
-                    break;
-                case BASIC_TIMER_DELAY:
-                    successCallback = (result) -> {
-                        basicTimerDelay = (long) result;
-
-                        if (initialized) {
-                            statisticsManager.setBasicTimerDelay(basicTimerDelay);
-                        }
-                    };
-
-                    oldValue = basicTimerDelay;
-                    newValue = Long.valueOf(sValue);
-                    modifiable = true;
-                    break;
-                case MAXIMUM_TIMER_DELAY:
-                    successCallback = (result) -> {
-                        maximumTimerDelay = (long) result;
-
-                        if (initialized) {
-                            statisticsManager.setMaximumTimerDelay(maximumTimerDelay);
-                        }
-                    };
-
-                    oldValue = maximumTimerDelay;
-                    newValue = Long.valueOf(sValue);
-                    modifiable = true;
-                    break;
-                case USE_SINGLE_LAYER_SERIALIZATION:
-                    successCallback = (result) -> useSingleLayerSerialization = (boolean) result;
-                    oldValue = useSingleLayerSerialization;
-                    newValue = Boolean.valueOf(sValue);
-                    modifiable = false;
-                    break;
-                default:
-                    return;
-            }
+        connectionManager = new ConnectionManagerImpl(config, executorService);
+        connectionManager.setDeviceConnectedHandler(contextChainHolder);
+        connectionManager.setDeviceDisconnectedHandler(contextChainHolder);
 
-            doPropertyUpdate(key, modifiable, oldValue, newValue, successCallback);
-        } catch (final Exception ex) {
-            LOG.warn("Failed to read configuration property '{}={}', error: {}", key, value, ex);
-        }
+        deviceManager.setContextChainHolder(contextChainHolder);
+        deviceManager.initialize();
     }
 
     @Override
@@ -502,57 +296,53 @@ public class OpenFlowPluginProviderImpl implements OpenFlowPluginProvider, OpenF
     }
 
     @Override
+    @PreDestroy
     public void close() {
-        initialized = false;
-
         try {
             shutdownSwitchConnections().get(10, TimeUnit.SECONDS);
         } catch (InterruptedException | ExecutionException | TimeoutException e) {
-            LOG.warn("Failed to shut down switch connections in time {}s, error: {}", 10, e);
+            LOG.warn("Failed to shut down switch connections in time {}s", 10, e);
         }
 
         gracefulShutdown(contextChainHolder);
         gracefulShutdown(deviceManager);
         gracefulShutdown(rpcManager);
         gracefulShutdown(statisticsManager);
-        gracefulShutdown(threadPool);
+        gracefulShutdown(roleManager);
+        gracefulShutdown(executorService);
         gracefulShutdown(hashedWheelTimer);
         unregisterMXBean(MESSAGE_INTELLIGENCE_AGENCY_MX_BEAN_NAME);
+        openflowDiagStatusProvider.reportStatus(ServiceState.UNREGISTERED);
     }
 
+    @SuppressWarnings("checkstyle:IllegalCatch")
     private static void gracefulShutdown(final AutoCloseable closeable) {
-        if (Objects.isNull(closeable)) {
-            return;
-        }
-
-        try {
-            closeable.close();
-        } catch (Exception e) {
-            LOG.warn("Failed to shutdown {} gracefully.", closeable);
+        if (closeable != null) {
+            try {
+                closeable.close();
+            } catch (Exception e) {
+                LOG.warn("Failed to shutdown {} gracefully.", closeable);
+            }
         }
     }
 
     private static void gracefulShutdown(final Timer timer) {
-        if (Objects.isNull(timer)) {
-            return;
-        }
-
-        try {
-            timer.stop();
-        } catch (Exception e) {
-            LOG.warn("Failed to shutdown {} gracefully.", timer);
+        if (timer != null) {
+            try {
+                timer.stop();
+            } catch (IllegalStateException e) {
+                LOG.warn("Failed to shutdown {} gracefully.", timer);
+            }
         }
     }
 
-    private static void gracefulShutdown(final ThreadPoolExecutor threadPoolExecutor) {
-        if (Objects.isNull(threadPoolExecutor)) {
-            return;
-        }
-
-        try {
-            threadPoolExecutor.shutdownNow();
-        } catch (Exception e) {
-            LOG.warn("Failed to shutdown {} gracefully.", threadPoolExecutor);
+    private static void gracefulShutdown(final ExecutorService executorService) {
+        if (executorService != null) {
+            try {
+                executorService.shutdownNow();
+            } catch (SecurityException e) {
+                LOG.warn("Failed to shutdown {} gracefully.", executorService);
+            }
         }
     }
 
@@ -565,7 +355,7 @@ public class OpenFlowPluginProviderImpl implements OpenFlowPluginProvider, OpenF
                 | NotCompliantMBeanException
                 | MBeanRegistrationException
                 | InstanceAlreadyExistsException e) {
-            LOG.warn("Error registering MBean {}", e);
+            LOG.warn("Error registering MBean {}", beanName, e);
         }
     }
 
@@ -577,7 +367,7 @@ public class OpenFlowPluginProviderImpl implements OpenFlowPluginProvider, OpenF
         } catch (InstanceNotFoundException
                 | MBeanRegistrationException
                 | MalformedObjectNameException e) {
-            LOG.warn("Error unregistering MBean {}", e);
+            LOG.warn("Error unregistering MBean {}", beanName, e);
         }
     }
 }