southbound/southbound-impl/src/main/java/org/opendaylight/ovsdb/southbound/SouthboundProvider.java

   1 /*
   2  * Copyright (c) 2014, 2018 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.ovsdb.southbound;
   9
  10 import com.google.common.annotations.VisibleForTesting;
  11 import com.google.common.base.Optional;
  12 import com.google.common.util.concurrent.CheckedFuture;
  13 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  14 import java.util.ArrayList;
  15 import java.util.Collection;
  16 import java.util.List;
  17 import java.util.concurrent.ExecutionException;
  18 import java.util.concurrent.atomic.AtomicBoolean;
  19 import javax.annotation.PostConstruct;
  20 import javax.annotation.PreDestroy;
  21 import javax.inject.Inject;
  22 import javax.inject.Singleton;
  23 import org.apache.aries.blueprint.annotation.service.Reference;
  24 import org.opendaylight.controller.md.sal.binding.api.ClusteredDataTreeChangeListener;
  25 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  26 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  27 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  28 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  29 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  30 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  31 import org.opendaylight.infrautils.diagstatus.DiagStatusService;
  32 import org.opendaylight.infrautils.diagstatus.ServiceState;
  33 import org.opendaylight.infrautils.ready.SystemReadyMonitor;
  34 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
  35 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
  36 import org.opendaylight.mdsal.eos.binding.api.Entity;
  37 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipCandidateRegistration;
  38 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipChange;
  39 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipListener;
  40 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipListenerRegistration;
  41 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipService;
  42 import org.opendaylight.mdsal.eos.common.api.CandidateAlreadyRegisteredException;
  43 import org.opendaylight.ovsdb.lib.OvsdbConnection;
  44 import org.opendaylight.ovsdb.southbound.reconciliation.OvsdbUpgradeStateListener;
  45 import org.opendaylight.ovsdb.southbound.transactions.md.TransactionInvoker;
  46 import org.opendaylight.ovsdb.southbound.transactions.md.TransactionInvokerImpl;
  47 import org.opendaylight.serviceutils.upgrade.UpgradeState;
  48 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  49 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  50 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyBuilder;
  51 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  52 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  53 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  54 import org.slf4j.Logger;
  55 import org.slf4j.LoggerFactory;
  56
  57 @Singleton
  58 public class SouthboundProvider implements ClusteredDataTreeChangeListener<Topology>, AutoCloseable {
  59
  60     private static final Logger LOG = LoggerFactory.getLogger(SouthboundProvider.class);
  61
  62     private static final String ENTITY_TYPE = "ovsdb-southbound-provider";
  63
  64     public static DataBroker getDb() {
  65         return db;
  66     }
  67
  68     // FIXME: get rid of this static
  69     @SuppressFBWarnings("ST_WRITE_TO_STATIC_FROM_INSTANCE_METHOD")
  70     private static DataBroker db;
  71     private OvsdbConnectionManager cm;
  72     private TransactionInvoker txInvoker;
  73     private OvsdbDataTreeChangeListener ovsdbDataTreeChangeListener;
  74     private final EntityOwnershipService entityOwnershipService;
  75     private EntityOwnershipCandidateRegistration registration;
  76     private SouthboundPluginInstanceEntityOwnershipListener providerOwnershipChangeListener;
  77     private final OvsdbConnection ovsdbConnection;
  78     private final InstanceIdentifierCodec instanceIdentifierCodec;
  79     private final SystemReadyMonitor systemReadyMonitor;
  80     private final UpgradeState upgradeState;
  81     private final AtomicBoolean registered = new AtomicBoolean(false);
  82     private ListenerRegistration<SouthboundProvider> operTopologyRegistration;
  83     private final OvsdbDiagStatusProvider ovsdbStatusProvider;
  84     private static List<String> reconcileBridgeInclusionList = new ArrayList<>();
  85     private static List<String> reconcileBridgeExclusionList = new ArrayList<>();
  86     private OvsdbUpgradeStateListener ovsdbUpgradeStateListener;
  87
  88     @Inject
  89     public SouthboundProvider(@Reference final DataBroker dataBroker,
  90                               @Reference final EntityOwnershipService entityOwnershipServiceDependency,
  91                               @Reference final OvsdbConnection ovsdbConnection,
  92                               @Reference final DOMSchemaService schemaService,
  93                               @Reference final BindingNormalizedNodeSerializer bindingNormalizedNodeSerializer,
  94                               @Reference final SystemReadyMonitor systemReadyMonitor,
  95                               @Reference final DiagStatusService diagStatusService,
  96                               @Reference final UpgradeState upgradeState) {
  97         SouthboundProvider.db = dataBroker;
  98         this.entityOwnershipService = entityOwnershipServiceDependency;
  99         registration = null;
 100         this.ovsdbConnection = ovsdbConnection;
 101         this.ovsdbStatusProvider = new OvsdbDiagStatusProvider(diagStatusService);
 102         this.instanceIdentifierCodec = new InstanceIdentifierCodec(schemaService,
 103                 bindingNormalizedNodeSerializer);
 104         this.systemReadyMonitor = systemReadyMonitor;
 105         this.upgradeState = upgradeState;
 106         LOG.info("SouthboundProvider ovsdbConnectionService Initialized");
 107     }
 108
 109     /**
 110      * Used by blueprint when starting the container.
 111      */
 112     @PostConstruct
 113     public void init() {
 114         LOG.info("SouthboundProvider Session Initiated");
 115         ovsdbStatusProvider.reportStatus(ServiceState.STARTING, "OVSDB initialization in progress");
 116         this.txInvoker = new TransactionInvokerImpl(db);
 117         cm = new OvsdbConnectionManager(db, txInvoker, entityOwnershipService, ovsdbConnection,
 118                 instanceIdentifierCodec, upgradeState);
 119         ovsdbDataTreeChangeListener = new OvsdbDataTreeChangeListener(db, cm, instanceIdentifierCodec);
 120
 121         //Register listener for entityOnwership changes
 122         providerOwnershipChangeListener =
 123                 new SouthboundPluginInstanceEntityOwnershipListener(this,this.entityOwnershipService);
 124
 125         //register instance entity to get the ownership of the provider
 126         Entity instanceEntity = new Entity(ENTITY_TYPE, ENTITY_TYPE);
 127         try {
 128             registration = entityOwnershipService.registerCandidate(instanceEntity);
 129         } catch (CandidateAlreadyRegisteredException e) {
 130             LOG.warn("OVSDB Southbound Provider instance entity {} was already "
 131                     + "registered for ownership", instanceEntity, e);
 132         }
 133         InstanceIdentifier<Topology> path = InstanceIdentifier
 134                 .create(NetworkTopology.class)
 135                 .child(Topology.class, new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID));
 136         DataTreeIdentifier<Topology> treeId =
 137                 new DataTreeIdentifier<>(LogicalDatastoreType.OPERATIONAL, path);
 138
 139         LOG.trace("Registering listener for path {}", treeId);
 140         operTopologyRegistration = db.registerDataTreeChangeListener(treeId, this);
 141         ovsdbUpgradeStateListener = new OvsdbUpgradeStateListener(db, cm);
 142     }
 143
 144     @Override
 145     @PreDestroy
 146     public void close() {
 147         LOG.info("SouthboundProvider Closed");
 148         try {
 149             txInvoker.close();
 150         } catch (InterruptedException e) {
 151             ovsdbStatusProvider.reportStatus(ServiceState.ERROR, "OVSDB service shutdown error");
 152             LOG.debug("SouthboundProvider failed to close TransactionInvoker.");
 153         }
 154         cm.close();
 155         ovsdbDataTreeChangeListener.close();
 156         registration.close();
 157         providerOwnershipChangeListener.close();
 158         if (operTopologyRegistration != null) {
 159             operTopologyRegistration.close();
 160             operTopologyRegistration = null;
 161         }
 162         ovsdbStatusProvider.reportStatus(ServiceState.UNREGISTERED, "OVSDB Service stopped");
 163         if (ovsdbUpgradeStateListener != null) {
 164             ovsdbUpgradeStateListener.close();
 165         }
 166     }
 167
 168     private void initializeOvsdbTopology(final LogicalDatastoreType type) {
 169         InstanceIdentifier<Topology> path = InstanceIdentifier
 170                 .create(NetworkTopology.class)
 171                 .child(Topology.class, new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID));
 172         ReadWriteTransaction transaction = db.newReadWriteTransaction();
 173         CheckedFuture<Optional<Topology>, ReadFailedException> ovsdbTp = transaction.read(type, path);
 174         try {
 175             if (!ovsdbTp.get().isPresent()) {
 176                 TopologyBuilder tpb = new TopologyBuilder();
 177                 tpb.setTopologyId(SouthboundConstants.OVSDB_TOPOLOGY_ID);
 178                 transaction.put(type, path, tpb.build(), true);
 179                 transaction.submit();
 180             } else {
 181                 transaction.cancel();
 182             }
 183         } catch (InterruptedException | ExecutionException e) {
 184             LOG.error("Error initializing ovsdb topology", e);
 185         }
 186     }
 187
 188     public void handleOwnershipChange(final EntityOwnershipChange ownershipChange) {
 189         if (ownershipChange.getState().isOwner()) {
 190             LOG.info("*This* instance of OVSDB southbound provider is set as a MASTER instance");
 191             LOG.info("Initialize OVSDB topology {} in operational and config data store if not already present",
 192                     SouthboundConstants.OVSDB_TOPOLOGY_ID);
 193             initializeOvsdbTopology(LogicalDatastoreType.OPERATIONAL);
 194             initializeOvsdbTopology(LogicalDatastoreType.CONFIGURATION);
 195         } else {
 196             LOG.info("*This* instance of OVSDB southbound provider is set as a SLAVE instance");
 197         }
 198     }
 199
 200     @Override
 201     public void onDataTreeChanged(final Collection<DataTreeModification<Topology>> collection) {
 202         if (!registered.getAndSet(true)) {
 203             LOG.info("Starting the ovsdb port");
 204             ovsdbConnection.registerConnectionListener(cm);
 205             LOG.info("Registering deferred system ready listener to start OVSDB Manager later");
 206             systemReadyMonitor.registerListener(() -> {
 207                 ovsdbConnection.startOvsdbManager();
 208                 LOG.info("Started OVSDB Manager (in system ready listener)");
 209             });
 210
 211             if (operTopologyRegistration != null) {
 212                 operTopologyRegistration.close();
 213                 operTopologyRegistration = null;
 214             }
 215             ovsdbStatusProvider.reportStatus(ServiceState.OPERATIONAL, "OVSDB initialization complete");
 216         }
 217     }
 218
 219     private static class SouthboundPluginInstanceEntityOwnershipListener implements EntityOwnershipListener {
 220         private final SouthboundProvider sp;
 221         private final EntityOwnershipListenerRegistration listenerRegistration;
 222
 223         SouthboundPluginInstanceEntityOwnershipListener(final SouthboundProvider sp,
 224                 final EntityOwnershipService entityOwnershipService) {
 225             this.sp = sp;
 226             listenerRegistration = entityOwnershipService.registerListener(ENTITY_TYPE, this);
 227         }
 228
 229         public void close() {
 230             this.listenerRegistration.close();
 231         }
 232
 233         @Override
 234         public void ownershipChanged(final EntityOwnershipChange ownershipChange) {
 235             sp.handleOwnershipChange(ownershipChange);
 236         }
 237     }
 238
 239     public void setSkipMonitoringManagerStatus(final boolean flag) {
 240         LOG.debug("skipManagerStatus set to {}", flag);
 241         if (flag) {
 242             SouthboundConstants.SKIP_COLUMN_FROM_TABLE.get("Manager").add("status");
 243         } else {
 244             SouthboundConstants.SKIP_COLUMN_FROM_TABLE.get("Manager").remove("status");
 245         }
 246     }
 247
 248     public static void setBridgesReconciliationInclusionList(final List<String> bridgeList) {
 249         reconcileBridgeInclusionList = bridgeList;
 250     }
 251
 252     public static void setBridgesReconciliationExclusionList(final List<String> bridgeList) {
 253         reconcileBridgeExclusionList = bridgeList;
 254     }
 255
 256     public static List<String> getBridgesReconciliationInclusionList() {
 257         return reconcileBridgeInclusionList;
 258     }
 259
 260     public static List<String> getBridgesReconciliationExclusionList() {
 261         return reconcileBridgeExclusionList;
 262     }
 263
 264     @VisibleForTesting
 265     boolean isRegistered() {
 266         return registered.get();
 267     }
 268
 269     public UpgradeState getUpgradeState() {
 270         return upgradeState;
 271     }
 272 }