Change declared exception
[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / utils / ActorContext.java
index 73f1a8f328d2a671c5699d770b782a860afcc7f7..68ac6412e8ad1346f46686e7d5103be5d0824b76 100644 (file)
@@ -14,26 +14,24 @@ import akka.actor.ActorRef;
 import akka.actor.ActorSelection;
 import akka.actor.ActorSystem;
 import akka.actor.Address;
-import akka.actor.PoisonPill;
-import akka.dispatch.Futures;
 import akka.dispatch.Mapper;
 import akka.dispatch.OnComplete;
 import akka.pattern.AskTimeoutException;
+import akka.pattern.Patterns;
 import akka.util.Timeout;
 import com.codahale.metrics.MetricRegistry;
 import com.codahale.metrics.Timer;
-import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Optional;
 import com.google.common.base.Preconditions;
 import com.google.common.base.Strings;
-import com.google.common.cache.Cache;
-import com.google.common.cache.CacheBuilder;
-import com.google.common.util.concurrent.RateLimiter;
 import java.util.concurrent.TimeUnit;
-import org.opendaylight.controller.cluster.common.actor.CommonConfig;
+import java.util.function.Function;
+import org.opendaylight.controller.cluster.access.concepts.MemberName;
 import org.opendaylight.controller.cluster.datastore.ClusterWrapper;
-import org.opendaylight.controller.cluster.datastore.Configuration;
+import org.opendaylight.controller.cluster.datastore.DataStoreVersions;
 import org.opendaylight.controller.cluster.datastore.DatastoreContext;
+import org.opendaylight.controller.cluster.datastore.DatastoreContextFactory;
+import org.opendaylight.controller.cluster.datastore.config.Configuration;
 import org.opendaylight.controller.cluster.datastore.exceptions.LocalShardNotFoundException;
 import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException;
 import org.opendaylight.controller.cluster.datastore.exceptions.NotInitializedException;
@@ -48,6 +46,8 @@ import org.opendaylight.controller.cluster.datastore.messages.LocalShardNotFound
 import org.opendaylight.controller.cluster.datastore.messages.PrimaryShardInfo;
 import org.opendaylight.controller.cluster.datastore.messages.RemotePrimaryShardFound;
 import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext;
+import org.opendaylight.controller.cluster.datastore.shardstrategy.ShardStrategyFactory;
+import org.opendaylight.controller.cluster.raft.client.messages.Shutdown;
 import org.opendaylight.controller.cluster.reporting.MetricsReporter;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
@@ -84,7 +84,8 @@ public class ActorContext {
             return actualFailure;
         }
     };
-    public static final String MAILBOX = "bounded-mailbox";
+    public static final String BOUNDED_MAILBOX = "bounded-mailbox";
+    public static final String COMMIT = "commit";
 
     private final ActorSystem actorSystem;
     private final ActorRef shardManager;
@@ -94,32 +95,35 @@ public class ActorContext {
     private FiniteDuration operationDuration;
     private Timeout operationTimeout;
     private final String selfAddressHostPort;
-    private RateLimiter txRateLimiter;
-    private final int transactionOutstandingOperationLimit;
+    private TransactionRateLimiter txRateLimiter;
     private Timeout transactionCommitOperationTimeout;
     private Timeout shardInitializationTimeout;
     private final Dispatchers dispatchers;
-    private Cache<String, Future<PrimaryShardInfo>> primaryShardInfoCache;
 
     private volatile SchemaContext schemaContext;
     private volatile boolean updated;
     private final MetricRegistry metricRegistry = MetricsReporter.getInstance(DatastoreContext.METRICS_DOMAIN).getMetricsRegistry();
 
+    private final PrimaryShardInfoFutureCache primaryShardInfoCache;
+    private final ShardStrategyFactory shardStrategyFactory;
+
     public ActorContext(ActorSystem actorSystem, ActorRef shardManager,
             ClusterWrapper clusterWrapper, Configuration configuration) {
         this(actorSystem, shardManager, clusterWrapper, configuration,
-                DatastoreContext.newBuilder().build());
+                DatastoreContext.newBuilder().build(), new PrimaryShardInfoFutureCache());
     }
 
     public ActorContext(ActorSystem actorSystem, ActorRef shardManager,
             ClusterWrapper clusterWrapper, Configuration configuration,
-            DatastoreContext datastoreContext) {
+            DatastoreContext datastoreContext, PrimaryShardInfoFutureCache primaryShardInfoCache) {
         this.actorSystem = actorSystem;
         this.shardManager = shardManager;
         this.clusterWrapper = clusterWrapper;
         this.configuration = configuration;
         this.datastoreContext = datastoreContext;
         this.dispatchers = new Dispatchers(actorSystem.dispatchers());
+        this.primaryShardInfoCache = primaryShardInfoCache;
+        this.shardStrategyFactory = new ShardStrategyFactory(configuration);
 
         setCachedProperties();
 
@@ -130,23 +134,18 @@ public class ActorContext {
             selfAddressHostPort = null;
         }
 
-        transactionOutstandingOperationLimit = new CommonConfig(this.getActorSystem().settings().config()).getMailBoxCapacity();
     }
 
     private void setCachedProperties() {
-        txRateLimiter = RateLimiter.create(datastoreContext.getTransactionCreationInitialRateLimit());
+        txRateLimiter = new TransactionRateLimiter(this);
 
-        operationDuration = Duration.create(datastoreContext.getOperationTimeoutInSeconds(), TimeUnit.SECONDS);
+        operationDuration = Duration.create(datastoreContext.getOperationTimeoutInMillis(), TimeUnit.MILLISECONDS);
         operationTimeout = new Timeout(operationDuration);
 
         transactionCommitOperationTimeout =  new Timeout(Duration.create(
                 datastoreContext.getShardTransactionCommitTimeoutInSeconds(), TimeUnit.SECONDS));
 
         shardInitializationTimeout = new Timeout(datastoreContext.getShardInitializationTimeout().duration().$times(2));
-
-        primaryShardInfoCache = CacheBuilder.newBuilder()
-                .expireAfterWrite(datastoreContext.getShardLeaderElectionTimeout().duration().toMillis(), TimeUnit.MILLISECONDS)
-                .build();
     }
 
     public DatastoreContext getDatastoreContext() {
@@ -177,8 +176,8 @@ public class ActorContext {
         }
     }
 
-    public void setDatastoreContext(DatastoreContext context) {
-        this.datastoreContext = context;
+    public void setDatastoreContext(DatastoreContextFactory contextFactory) {
+        this.datastoreContext = contextFactory.getBaseDatastoreContext();
         setCachedProperties();
 
         // We write the 'updated' volatile to trigger a write memory barrier so that the writes above
@@ -191,7 +190,7 @@ public class ActorContext {
         updated = true;
 
         if(shardManager != null) {
-            shardManager.tell(context, ActorRef.noSender());
+            shardManager.tell(contextFactory, ActorRef.noSender());
         }
     }
 
@@ -209,14 +208,16 @@ public class ActorContext {
 
         return future.transform(new Mapper<Object, PrimaryShardInfo>() {
             @Override
-            public PrimaryShardInfo checkedApply(Object response) throws Exception {
+            public PrimaryShardInfo checkedApply(Object response) throws UnknownMessageException {
                 if(response instanceof RemotePrimaryShardFound) {
                     LOG.debug("findPrimaryShardAsync received: {}", response);
-                    return onPrimaryShardFound(shardName, ((RemotePrimaryShardFound)response).getPrimaryPath(), null);
+                    RemotePrimaryShardFound found = (RemotePrimaryShardFound)response;
+                    return onPrimaryShardFound(shardName, found.getPrimaryPath(), found.getPrimaryVersion(), null);
                 } else if(response instanceof LocalPrimaryShardFound) {
                     LOG.debug("findPrimaryShardAsync received: {}", response);
                     LocalPrimaryShardFound found = (LocalPrimaryShardFound)response;
-                    return onPrimaryShardFound(shardName, found.getPrimaryPath(), found.getLocalShardDataTree());
+                    return onPrimaryShardFound(shardName, found.getPrimaryPath(), DataStoreVersions.CURRENT_VERSION,
+                            found.getLocalShardDataTree());
                 } else if(response instanceof NotInitializedException) {
                     throw (NotInitializedException)response;
                 } else if(response instanceof PrimaryNotFoundException) {
@@ -232,10 +233,11 @@ public class ActorContext {
     }
 
     private PrimaryShardInfo onPrimaryShardFound(String shardName, String primaryActorPath,
-            DataTree localShardDataTree) {
+            short primaryVersion, DataTree localShardDataTree) {
         ActorSelection actorSelection = actorSystem.actorSelection(primaryActorPath);
-        PrimaryShardInfo info = new PrimaryShardInfo(actorSelection, Optional.fromNullable(localShardDataTree));
-        primaryShardInfoCache.put(shardName, Futures.successful(info));
+        PrimaryShardInfo info = localShardDataTree == null ? new PrimaryShardInfo(actorSelection, primaryVersion) :
+            new PrimaryShardInfo(actorSelection, primaryVersion, localShardDataTree);
+        primaryShardInfoCache.putSuccessful(shardName, info);
         return info;
     }
 
@@ -378,15 +380,19 @@ public class ActorContext {
     }
 
     public void shutdown() {
-        shardManager.tell(PoisonPill.getInstance(), null);
-        actorSystem.shutdown();
+        FiniteDuration duration = datastoreContext.getShardRaftConfig().getElectionTimeOutInterval().$times(3);
+        try {
+            Await.ready(Patterns.gracefulStop(shardManager, duration, Shutdown.INSTANCE), duration);
+        } catch(Exception e) {
+            LOG.warn("ShardManager for {} data store did not shutdown gracefully", getDataStoreName(), e);
+        }
     }
 
     public ClusterWrapper getClusterWrapper() {
         return clusterWrapper;
     }
 
-    public String getCurrentMemberName(){
+    public MemberName getCurrentMemberName(){
         return clusterWrapper.getCurrentMemberName();
     }
 
@@ -395,13 +401,14 @@ public class ActorContext {
      *
      * @param message
      */
-    public void broadcast(final Object message){
+    public void broadcast(final Function<Short, Object> messageSupplier){
         for(final String shardName : configuration.getAllShardNames()){
 
             Future<PrimaryShardInfo> primaryFuture = findPrimaryShardAsync(shardName);
             primaryFuture.onComplete(new OnComplete<PrimaryShardInfo>() {
                 @Override
                 public void onComplete(Throwable failure, PrimaryShardInfo primaryShardInfo) {
+                    Object message = messageSupplier.apply(primaryShardInfo.getPrimaryShardVersion());
                     if(failure != null) {
                         LOG.warn("broadcast failed to send message {} to shard {}:  {}",
                                 message.getClass().getSimpleName(), shardName, failure);
@@ -417,6 +424,10 @@ public class ActorContext {
         return operationDuration;
     }
 
+    public Timeout getOperationTimeout() {
+        return operationTimeout;
+    }
+
     public boolean isPathLocal(String path) {
         if (Strings.isNullOrEmpty(path)) {
             return false;
@@ -444,42 +455,6 @@ public class ActorContext {
         }
     }
 
-    /**
-     * @deprecated This method is present only to support backward compatibility with Helium and should not be
-     * used any further
-     *
-     *
-     * @param primaryPath
-     * @param localPathOfRemoteActor
-     * @return
-    */
-    @Deprecated
-    public String resolvePath(final String primaryPath,
-                                            final String localPathOfRemoteActor) {
-        StringBuilder builder = new StringBuilder();
-        String[] primaryPathElements = primaryPath.split("/");
-        builder.append(primaryPathElements[0]).append("//")
-            .append(primaryPathElements[1]).append(primaryPathElements[2]);
-        String[] remotePathElements = localPathOfRemoteActor.split("/");
-        for (int i = 3; i < remotePathElements.length; i++) {
-                builder.append("/").append(remotePathElements[i]);
-            }
-
-        return builder.toString();
-    }
-
-    /**
-     * Get the maximum number of operations that are to be permitted within a transaction before the transaction
-     * should begin throttling the operations
-     *
-     * Parking reading this configuration here because we need to get to the actor system settings
-     *
-     * @return
-     */
-    public int getTransactionOutstandingOperationLimit(){
-        return transactionOutstandingOperationLimit;
-    }
-
     /**
      * This is a utility method that lets us get a Timer object for any operation. This is a little open-ended to allow
      * us to create a timer for pretty much anything.
@@ -488,7 +463,7 @@ public class ActorContext {
      * @return
      */
     public Timer getOperationTimer(String operationName){
-        return getOperationTimer(datastoreContext.getDataStoreType(), operationName);
+        return getOperationTimer(datastoreContext.getDataStoreName(), operationName);
     }
 
     public Timer getOperationTimer(String dataStoreType, String operationName){
@@ -498,21 +473,12 @@ public class ActorContext {
     }
 
     /**
-     * Get the type of the data store to which this ActorContext belongs
+     * Get the name of the data store to which this ActorContext belongs
      *
      * @return
      */
-    public String getDataStoreType() {
-        return datastoreContext.getDataStoreType();
-    }
-
-    /**
-     * Set the number of transaction creation permits that are to be allowed
-     *
-     * @param permitsPerSecond
-     */
-    public void setTxCreationLimit(double permitsPerSecond){
-        txRateLimiter.setRate(permitsPerSecond);
+    public String getDataStoreName() {
+        return datastoreContext.getDataStoreName();
     }
 
     /**
@@ -520,7 +486,7 @@ public class ActorContext {
      * @return
      */
     public double getTxCreationLimit(){
-        return txRateLimiter.getRate();
+        return txRateLimiter.getTxCreationLimit();
     }
 
     /**
@@ -555,6 +521,10 @@ public class ActorContext {
         return configuration;
     }
 
+    public ShardStrategyFactory getShardStrategyFactory() {
+        return shardStrategyFactory;
+    }
+
     protected Future<Object> doAsk(ActorRef actorRef, Object message, Timeout timeout){
         return ask(actorRef, message, timeout);
     }
@@ -563,8 +533,7 @@ public class ActorContext {
         return ask(actorRef, message, timeout);
     }
 
-    @VisibleForTesting
-    Cache<String, Future<PrimaryShardInfo>> getPrimaryShardInfoCache() {
+    public PrimaryShardInfoFutureCache getPrimaryShardInfoCache() {
         return primaryShardInfoCache;
     }
 }