Bump MRI upstreams
[openflowplugin.git] / openflowplugin-impl / src / main / java / org / opendaylight / openflowplugin / impl / lifecycle / ContextChainHolderImpl.java
index cf0e004d1a0a362dff022a678f319798567e4910..24574fb594ada1b41515a7594aa67afbae360068 100644 (file)
@@ -20,8 +20,9 @@ import java.util.Map;
 import java.util.Objects;
 import java.util.Optional;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
 import java.util.concurrent.ExecutionException;
-import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executor;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.ThreadFactory;
@@ -29,6 +30,7 @@ import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
 import java.util.stream.Collectors;
 import org.eclipse.jdt.annotation.NonNull;
+import org.eclipse.jdt.annotation.Nullable;
 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipChange;
 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipListenerRegistration;
 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipService;
@@ -64,7 +66,7 @@ import org.opendaylight.yangtools.yang.common.Uint8;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-public class ContextChainHolderImpl implements ContextChainHolder, MasterChecker {
+public final class ContextChainHolderImpl implements ContextChainHolder, MasterChecker {
     private static final Logger LOG = LoggerFactory.getLogger(ContextChainHolderImpl.class);
     private static final Logger OF_EVENT_LOG = LoggerFactory.getLogger("OfEventLog");
 
@@ -73,11 +75,11 @@ public class ContextChainHolderImpl implements ContextChainHolder, MasterChecker
     private static final String ASYNC_SERVICE_ENTITY_TYPE = "org.opendaylight.mdsal.AsyncServiceCloseEntityType";
     private static final String SERVICE_ENTITY_TYPE = "org.opendaylight.mdsal.ServiceEntityType";
     private static final String SEPARATOR = ":";
-    private final Map<DeviceInfo, ContextChain> contextChainMap = new ConcurrentHashMap<>();
-    private final Map<DeviceInfo, ? super ConnectionContext> connectingDevices = new ConcurrentHashMap<>();
+    private final ConcurrentMap<DeviceInfo, ContextChain> contextChainMap = new ConcurrentHashMap<>();
+    private final ConcurrentMap<DeviceInfo, ? super ConnectionContext> connectingDevices = new ConcurrentHashMap<>();
     private final EntityOwnershipListenerRegistration eosListenerRegistration;
     private final ClusterSingletonServiceProvider singletonServiceProvider;
-    private final ExecutorService executorService;
+    private final Executor executor;
     private final OwnershipChangeListener ownershipChangeListener;
     private final ThreadFactory threadFactory = new ThreadFactoryBuilder().setDaemon(true)
             .setNameFormat("node-cleaner-%d").setUncaughtExceptionHandler((thread, throwable) -> {
@@ -92,18 +94,18 @@ public class ContextChainHolderImpl implements ContextChainHolder, MasterChecker
     private StatisticsManager statisticsManager;
     private RoleManager roleManager;
 
-    public ContextChainHolderImpl(final ExecutorService executorService,
+    public ContextChainHolderImpl(final Executor executor,
                                   final ClusterSingletonServiceProvider singletonServiceProvider,
                                   final EntityOwnershipService entityOwnershipService,
                                   final OwnershipChangeListener ownershipChangeListener,
                                   final OpenflowProviderConfig config) {
         this.singletonServiceProvider = singletonServiceProvider;
-        this.executorService = executorService;
+        this.executor = executor;
         this.ownershipChangeListener = ownershipChangeListener;
         this.ownershipChangeListener.setMasterChecker(this);
         this.entityOwnershipService = entityOwnershipService;
         this.config = config;
-        this.eosListenerRegistration = Objects
+        eosListenerRegistration = Objects
                 .requireNonNull(entityOwnershipService.registerListener(ASYNC_SERVICE_ENTITY_TYPE, this));
     }
 
@@ -144,7 +146,7 @@ public class ContextChainHolderImpl implements ContextChainHolder, MasterChecker
         roleContext.registerMastershipWatcher(this);
         LOG.debug("Role" + CONTEXT_CREATED_FOR_CONNECTION, deviceInfo);
 
-        final ContextChain contextChain = new ContextChainImpl(this, connectionContext, executorService);
+        final ContextChain contextChain = new ContextChainImpl(this, connectionContext, executor);
         contextChain.registerDeviceRemovedHandler(deviceManager);
         contextChain.registerDeviceRemovedHandler(rpcManager);
         contextChain.registerDeviceRemovedHandler(statisticsManager);
@@ -215,24 +217,23 @@ public class ContextChainHolderImpl implements ContextChainHolder, MasterChecker
     }
 
     @Override
-    public void onNotAbleToStartMastership(@NonNull final DeviceInfo deviceInfo, @NonNull final String reason,
-                                           final boolean mandatory) {
+    public void onNotAbleToStartMastership(final DeviceInfo deviceInfo, final String reason, final boolean mandatory) {
         LOG.error("Not able to set MASTER role on device {}, reason: {}", deviceInfo, reason);
 
         if (!mandatory) {
             return;
         }
-
-        Optional.ofNullable(contextChainMap.get(deviceInfo)).ifPresent(contextChain -> {
+        if (contextChainMap.containsKey(deviceInfo)) {
             LOG.warn("This mastering is mandatory, destroying context chain and closing connection for device {}.",
                      deviceInfo);
             destroyContextChain(deviceInfo);
-        });
+        }
     }
 
     @Override
     public void onMasterRoleAcquired(final DeviceInfo deviceInfo, final ContextChainMastershipState mastershipState) {
-        Optional.ofNullable(contextChainMap.get(deviceInfo)).ifPresent(contextChain -> {
+        final ContextChain contextChain = contextChainMap.get(deviceInfo);
+        if (contextChain != null) {
             if (!ContextChainMastershipState.INITIAL_SUBMIT.equals(mastershipState)) {
                 if (contextChain.isMastered(mastershipState, true)) {
                     Futures.addCallback(ownershipChangeListener.becomeMasterBeforeSubmittedDS(deviceInfo),
@@ -244,34 +245,41 @@ public class ContextChainHolderImpl implements ContextChainHolder, MasterChecker
                 OF_EVENT_LOG.debug("Master Elected, Node: {}", deviceInfo.getDatapathId());
                 deviceManager.sendNodeAddedNotification(deviceInfo.getNodeInstanceIdentifier());
             }
-        });
+        }
     }
 
     @Override
     public void onSlaveRoleAcquired(final DeviceInfo deviceInfo) {
         ownershipChangeListener.becomeSlaveOrDisconnect(deviceInfo);
         LOG.info("Role SLAVE was granted to device {}", deviceInfo);
-        Optional.ofNullable(contextChainMap.get(deviceInfo)).ifPresent(ContextChain::makeContextChainStateSlave);
+        final ContextChain contextChain = contextChainMap.get(deviceInfo);
+        if (contextChain != null) {
+            contextChain.makeContextChainStateSlave();
+        }
     }
 
     @Override
     public void onSlaveRoleNotAcquired(final DeviceInfo deviceInfo, final String reason) {
         LOG.error("Not able to set SLAVE role on device {}, reason: {}", deviceInfo, reason);
-        Optional.ofNullable(contextChainMap.get(deviceInfo)).ifPresent(contextChain -> destroyContextChain(deviceInfo));
+        if (contextChainMap.containsKey(deviceInfo)) {
+            destroyContextChain(deviceInfo);
+        }
     }
 
     @Override
     public void onDeviceDisconnected(final ConnectionContext connectionContext) {
         final DeviceInfo deviceInfo = connectionContext.getDeviceInfo();
-
-        Optional.ofNullable(connectionContext.getDeviceInfo()).map(contextChainMap::get).ifPresent(contextChain -> {
-            if (contextChain.auxiliaryConnectionDropped(connectionContext)) {
-                LOG.info("Auxiliary connection from device {} disconnected.", deviceInfo);
-            } else {
-                LOG.info("Device {} disconnected.", deviceInfo);
-                destroyContextChain(deviceInfo);
+        if (deviceInfo != null) {
+            final ContextChain contextChain = contextChainMap.get(deviceInfo);
+            if (contextChain != null) {
+                if (contextChain.auxiliaryConnectionDropped(connectionContext)) {
+                    LOG.info("Auxiliary connection from device {} disconnected.", deviceInfo);
+                } else {
+                    LOG.info("Device {} disconnected.", deviceInfo);
+                    destroyContextChain(deviceInfo);
+                }
             }
-        });
+        }
     }
 
     @VisibleForTesting
@@ -327,9 +335,8 @@ public class ContextChainHolderImpl implements ContextChainHolder, MasterChecker
             final String dpnId = getDpnIdFromNodeName(entityName);
             nodeCleanerExecutor.schedule(() -> {
                 try {
-                    Optional<EntityOwnershipState> ownershipState = getCurrentOwnershipStatus(entityName);
-                    if (!ownershipState.isPresent()
-                            || Objects.equals(ownershipState.get(), EntityOwnershipState.NO_OWNER)) {
+                    EntityOwnershipState ownershipState = getCurrentOwnershipStatus(entityName);
+                    if (ownershipState == null || EntityOwnershipState.NO_OWNER.equals(ownershipState)) {
                         LOG.debug("Entity {} has no owner", entityName);
                         final KeyedInstanceIdentifier<Node, NodeKey> nodeInstanceIdentifier =
                                 DeviceStateUtil.createNodeInstanceIdentifier(new NodeId(entityName));
@@ -354,7 +361,7 @@ public class ContextChainHolderImpl implements ContextChainHolder, MasterChecker
                         LOG.warn("Seems like device is still owned by other controller instance. Skip deleting {} "
                                 + "node from operational datastore.", entityName);
                     }
-                } catch (TimeoutException | ExecutionException | NullPointerException | InterruptedException e) {
+                } catch (TimeoutException | ExecutionException | InterruptedException e) {
                     LOG.warn("Not able to remove device {} from operational DS. ", entityName, e);
                 }
             }, config.getDeviceDatastoreRemovalDelay().getValue().toJava(), TimeUnit.MILLISECONDS);
@@ -364,11 +371,12 @@ public class ContextChainHolderImpl implements ContextChainHolder, MasterChecker
     private void destroyContextChain(final DeviceInfo deviceInfo) {
         OF_EVENT_LOG.debug("Destroying context chain for device {}", deviceInfo.getDatapathId());
         ownershipChangeListener.becomeSlaveOrDisconnect(deviceInfo);
-        Optional.ofNullable(contextChainMap.get(deviceInfo)).ifPresent(contextChain -> {
+        final ContextChain contextChain = contextChainMap.get(deviceInfo);
+        if (contextChain != null) {
             deviceManager.sendNodeRemovedNotification(deviceInfo.getNodeInstanceIdentifier());
             contextChain.close();
             connectingDevices.remove(deviceInfo);
-        });
+        }
     }
 
     @Override
@@ -426,18 +434,18 @@ public class ContextChainHolderImpl implements ContextChainHolder, MasterChecker
         return nodeName.substring(nodeName.lastIndexOf(SEPARATOR) + 1);
     }
 
-    private Optional<EntityOwnershipState> getCurrentOwnershipStatus(final String nodeId) {
+    private @Nullable EntityOwnershipState getCurrentOwnershipStatus(final String nodeId) {
         org.opendaylight.mdsal.eos.binding.api.Entity entity = createNodeEntity(nodeId);
         Optional<EntityOwnershipState> ownershipStatus
                 = entityOwnershipService.getOwnershipState(entity);
 
         if (ownershipStatus.isPresent()) {
             LOG.debug("Current ownership status for node {} is {}", nodeId, ownershipStatus.get());
-            return Optional.of(ownershipStatus.get());
-        } else {
-            LOG.trace("Ownership status is not available for node {}", nodeId);
+            return ownershipStatus.get();
         }
-        return Optional.empty();
+
+        LOG.trace("Ownership status is not available for node {}", nodeId);
+        return null;
     }
 
     private static org.opendaylight.mdsal.eos.binding.api.Entity createNodeEntity(final String nodeId) {