openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/lifecycle/LifecycleServiceImpl.java

   1 /**
   2  * Copyright (c) 2016 Pantheon Technologies s.r.o. and others. All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.openflowplugin.impl.lifecycle;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.util.concurrent.FutureCallback;
  12 import com.google.common.util.concurrent.Futures;
  13 import com.google.common.util.concurrent.ListenableFuture;
  14 import java.util.Collection;
  15 import java.util.List;
  16 import java.util.Objects;
  17 import javax.annotation.Nullable;
  18 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
  19 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceRegistration;
  20 import org.opendaylight.mdsal.singleton.common.api.ServiceGroupIdentifier;
  21 import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionContext;
  22 import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
  23 import org.opendaylight.openflowplugin.api.openflow.device.handlers.ClusterInitializationPhaseHandler;
  24 import org.opendaylight.openflowplugin.api.openflow.lifecycle.LifecycleService;
  25 import org.opendaylight.openflowplugin.api.openflow.role.RoleContext;
  26 import org.opendaylight.openflowplugin.api.openflow.rpc.RpcContext;
  27 import org.opendaylight.openflowplugin.api.openflow.statistics.StatisticsContext;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 public class LifecycleServiceImpl implements LifecycleService {
  33
  34     private static final Logger LOG = LoggerFactory.getLogger(LifecycleServiceImpl.class);
  35
  36     private DeviceContext deviceContext;
  37     private RpcContext rpcContext;
  38     private RoleContext roleContext;
  39     private StatisticsContext statContext;
  40     private ClusterSingletonServiceRegistration registration;
  41     private ClusterInitializationPhaseHandler clusterInitializationPhaseHandler;
  42
  43
  44     @Override
  45     public void instantiateServiceInstance() {
  46
  47         LOG.info("Starting clustering MASTER services for node {}", this.deviceContext.getDeviceInfo().getLOGValue());
  48
  49         if (!this.clusterInitializationPhaseHandler.onContextInstantiateService(null)) {
  50             this.closeConnection();
  51         }
  52
  53     }
  54
  55     @Override
  56     public ListenableFuture<Void> closeServiceInstance() {
  57
  58         LOG.info("Stopping clustering MASTER services for node {}", this.deviceContext.getDeviceInfo().getLOGValue());
  59
  60         final boolean connectionInterrupted =
  61                 this.deviceContext
  62                         .getPrimaryConnectionContext()
  63                         .getConnectionState()
  64                         .equals(ConnectionContext.CONNECTION_STATE.RIP);
  65
  66         roleContext.stopClusterServices(connectionInterrupted);
  67         statContext.stopClusterServices(connectionInterrupted);
  68         rpcContext.stopClusterServices(connectionInterrupted);
  69         return deviceContext.stopClusterServices(connectionInterrupted);
  70
  71     }
  72
  73     @Override
  74     public ServiceGroupIdentifier getIdentifier() {
  75         return deviceContext.getServiceIdentifier();
  76     }
  77
  78
  79     @Override
  80     public void close() throws Exception {
  81         if (registration != null) {
  82             registration.close();
  83             registration = null;
  84         }
  85     }
  86
  87     @Override
  88     public void registerService(final ClusterSingletonServiceProvider singletonServiceProvider) {
  89         //lifecycle service -> device context -> statistics context -> rpc context -> role context -> lifecycle service
  90         this.clusterInitializationPhaseHandler = deviceContext;
  91         this.deviceContext.setLifecycleInitializationPhaseHandler(this.statContext);
  92         this.statContext.setLifecycleInitializationPhaseHandler(this.rpcContext);
  93         this.rpcContext.setLifecycleInitializationPhaseHandler(this.roleContext);
  94         this.roleContext.setLifecycleInitializationPhaseHandler(this);
  95         //Set initial submit handler
  96         this.statContext.setInitialSubmitHandler(this.deviceContext);
  97         //Register cluster singleton service
  98         this.registration = singletonServiceProvider.registerClusterSingletonService(this);
  99     }
 100
 101     @Override
 102     public void setDeviceContext(final DeviceContext deviceContext) {
 103         this.deviceContext = deviceContext;
 104     }
 105
 106     @Override
 107     public void setRpcContext(final RpcContext rpcContext) {
 108         this.rpcContext = rpcContext;
 109     }
 110
 111     @Override
 112     public void setRoleContext(final RoleContext roleContext) {
 113         this.roleContext = roleContext;
 114     }
 115
 116     @Override
 117     public void setStatContext(final StatisticsContext statContext) {
 118         this.statContext = statContext;
 119     }
 120
 121     @Override
 122     public DeviceContext getDeviceContext() {
 123         return this.deviceContext;
 124     }
 125
 126     @Override
 127     public void closeConnection() {
 128         this.deviceContext.shutdownConnection();
 129     }
 130
 131     private void fillDeviceFlowRegistry() {
 132         // Fill device flow registry with flows from datastore
 133         final ListenableFuture<List<Optional<FlowCapableNode>>> deviceFlowRegistryFill = deviceContext.getDeviceFlowRegistry().fill();
 134
 135         // Start statistics scheduling only after we finished initializing device flow registry
 136         Futures.addCallback(deviceFlowRegistryFill, new FutureCallback<List<Optional<FlowCapableNode>>>() {
 137             @Override
 138             public void onSuccess(@Nullable List<Optional<FlowCapableNode>> result) {
 139                 if (LOG.isDebugEnabled()) {
 140                     // Count all flows we read from datastore for debugging purposes.
 141                     // This number do not always represent how many flows were actually added
 142                     // to DeviceFlowRegistry, because of possible duplicates.
 143                     long flowCount = Optional.fromNullable(result).asSet().stream()
 144                             .flatMap(Collection::stream)
 145                             .filter(Objects::nonNull)
 146                             .flatMap(flowCapableNodeOptional -> flowCapableNodeOptional.asSet().stream())
 147                             .filter(Objects::nonNull)
 148                             .filter(flowCapableNode -> Objects.nonNull(flowCapableNode.getTable()))
 149                             .flatMap(flowCapableNode -> flowCapableNode.getTable().stream())
 150                             .filter(Objects::nonNull)
 151                             .filter(table -> Objects.nonNull(table.getFlow()))
 152                             .flatMap(table -> table.getFlow().stream())
 153                             .filter(Objects::nonNull)
 154                             .count();
 155
 156                     LOG.debug("Finished filling flow registry with {} flows for node: {}", flowCount, deviceContext.getDeviceInfo().getLOGValue());
 157                 }
 158             }
 159
 160             @Override
 161             public void onFailure(Throwable t) {
 162                 if (deviceFlowRegistryFill.isCancelled()) {
 163                     if (LOG.isDebugEnabled()) {
 164                         LOG.debug("Cancelled filling flow registry with flows for node: {}", deviceContext.getDeviceInfo().getLOGValue());
 165                     }
 166                 } else {
 167                     LOG.warn("Failed filling flow registry with flows for node: {} with exception: {}", deviceContext.getDeviceInfo().getLOGValue(), t);
 168                 }
 169             }
 170         });
 171     }
 172
 173     @Override
 174     public void setLifecycleInitializationPhaseHandler(final ClusterInitializationPhaseHandler handler) {
 175         this.clusterInitializationPhaseHandler = handler;
 176     }
 177
 178     @Override
 179     public boolean onContextInstantiateService(final ConnectionContext connectionContext) {
 180
 181         if (ConnectionContext.CONNECTION_STATE.RIP.equals(connectionContext.getConnectionState())) {
 182             if (LOG.isDebugEnabled()) {
 183                 LOG.debug("Connection to the device {} was interrupted.", this.deviceContext.getDeviceInfo().getLOGValue());
 184             }
 185             return false;
 186         }
 187
 188         fillDeviceFlowRegistry();
 189         return true;
 190     }
 191 }