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

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. 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.concurrent.ExecutionException;
  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.device.DeviceContext;
  22 import org.opendaylight.openflowplugin.api.openflow.device.DeviceInfo;
  23 import org.opendaylight.openflowplugin.api.openflow.lifecycle.LifecycleService;
  24 import org.opendaylight.openflowplugin.api.openflow.registry.flow.DeviceFlowRegistry;
  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
  42
  43     @Override
  44     public void instantiateServiceInstance() {
  45         try {
  46
  47             LOG.info("Starting device context cluster services for node {}", getIdentifier());
  48             this.deviceContext.startupClusterServices();
  49
  50             LOG.info("Starting statistics context cluster services for node {}", getIdentifier());
  51             this.statContext.startupClusterServices();
  52
  53             LOG.info("Statistics initial gathering OK, submitting data for node {}", getIdentifier());
  54             this.deviceContext.initialSubmitTransaction();
  55
  56             LOG.info("Starting rpc context cluster services for node {}", getIdentifier());
  57             this.rpcContext.startupClusterServices();
  58
  59             LOG.info("Starting role context cluster services for node {}", getIdentifier());
  60             this.roleContext.startupClusterServices();
  61
  62             LOG.info("Caching flows IDs ...");
  63             fillDeviceFlowRegistry();
  64
  65         } catch (ExecutionException | InterruptedException e) {
  66             LOG.warn("Cluster service {} was unable to start.", this.getIdentifier());
  67         }
  68     }
  69
  70     @Override
  71     public ListenableFuture<Void> closeServiceInstance() {
  72         statContext.stopClusterServices();
  73         rpcContext.stopClusterServices();
  74         return deviceContext.stopClusterServices();
  75     }
  76
  77     @Override
  78     public ServiceGroupIdentifier getIdentifier() {
  79         return deviceContext.getServiceIdentifier();
  80     }
  81
  82
  83     @Override
  84     public void close() throws Exception {
  85         if (registration != null) {
  86             registration.close();
  87             registration = null;
  88         }
  89     }
  90
  91     @Override
  92     public void registerService(final ClusterSingletonServiceProvider singletonServiceProvider) {
  93         this.registration = singletonServiceProvider.registerClusterSingletonService(this);
  94     }
  95
  96     @Override
  97     public void setDeviceContext(final DeviceContext deviceContext) {
  98         this.deviceContext = deviceContext;
  99     }
 100
 101     @Override
 102     public void setRpcContext(final RpcContext rpcContext) {
 103         this.rpcContext = rpcContext;
 104     }
 105
 106     @Override
 107     public void setRoleContext(final RoleContext roleContext) {
 108         this.roleContext = roleContext;
 109     }
 110
 111     @Override
 112     public void setStatContext(final StatisticsContext statContext) {
 113         this.statContext = statContext;
 114     }
 115
 116     private void fillDeviceFlowRegistry() {
 117         // Fill device flow registry with flows from datastore
 118         final ListenableFuture<List<Optional<FlowCapableNode>>> deviceFlowRegistryFill = deviceContext.getDeviceFlowRegistry().fill();
 119
 120         // Start statistics scheduling only after we finished initializing device flow registry
 121         Futures.addCallback(deviceFlowRegistryFill, new FutureCallback<List<Optional<FlowCapableNode>>>() {
 122             @Override
 123             public void onSuccess(@Nullable List<Optional<FlowCapableNode>> result) {
 124                 if (LOG.isDebugEnabled()) {
 125                     // Count all flows we read from datastore for debugging purposes.
 126                     // This number do not always represent how many flows were actually added
 127                     // to DeviceFlowRegistry, because of possible duplicates.
 128                     long flowCount = Optional.fromNullable(result).asSet().stream()
 129                             .flatMap(Collection::stream)
 130                             .flatMap(flowCapableNodeOptional -> flowCapableNodeOptional.asSet().stream())
 131                             .flatMap(flowCapableNode -> flowCapableNode.getTable().stream())
 132                             .flatMap(table -> table.getFlow().stream())
 133                             .count();
 134
 135                     LOG.debug("Finished filling flow registry with {} flows for node: {}", flowCount, getIdentifier());
 136                 }
 137             }
 138
 139             @Override
 140             public void onFailure(Throwable t) {
 141                 if (deviceFlowRegistryFill.isCancelled()) {
 142                     LOG.debug("Cancelled filling flow registry with flows for node: {}", getIdentifier());
 143                 } else {
 144                     LOG.warn("Failed filling flow registry with flows for node: {} with exception: {}", getIdentifier(), t);
 145                 }
 146             }
 147         });
 148     }
 149
 150 }