Merge "Moved the resources to a separate plugin so they can be used by others."
[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / Shard.java
index 21fea96320f30754baa2c300877c768c895b4d02..75f540ade088e6bb45b10e9b92bc4af8789b0218 100644 (file)
@@ -16,7 +16,12 @@ import akka.event.LoggingAdapter;
 import akka.japi.Creator;
 import akka.serialization.Serialization;
 import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+import com.google.common.util.concurrent.FutureCallback;
+import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
+import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier;
+import org.opendaylight.controller.cluster.datastore.identifiers.ShardTransactionIdentifier;
 import org.opendaylight.controller.cluster.datastore.jmx.mbeans.shard.ShardMBeanFactory;
 import org.opendaylight.controller.cluster.datastore.jmx.mbeans.shard.ShardStats;
 import org.opendaylight.controller.cluster.datastore.messages.CommitTransactionReply;
@@ -38,6 +43,7 @@ import org.opendaylight.controller.cluster.raft.RaftActor;
 import org.opendaylight.controller.cluster.raft.ReplicatedLogEntry;
 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
 import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStore;
+import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStoreConfigProperties;
 import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStoreFactory;
 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
 import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
@@ -67,6 +73,7 @@ public class Shard extends RaftActor {
 
     public static final String DEFAULT_NAME = "default";
 
+    // The state of this Shard
     private final InMemoryDOMDataStore store;
 
     private final Map<Object, DOMStoreThreePhaseCommitCohort>
@@ -76,10 +83,11 @@ public class Shard extends RaftActor {
         Logging.getLogger(getContext().system(), this);
 
     // By default persistent will be true and can be turned off using the system
-    // property persistent
+    // property shard.persistent
     private final boolean persistent;
 
-    private final String name;
+    /// The name of this shard
+    private final ShardIdentifier name;
 
     private volatile SchemaContext schemaContext;
 
@@ -87,8 +95,9 @@ public class Shard extends RaftActor {
 
     private final List<ActorSelection> dataChangeListeners = new ArrayList<>();
 
-    private Shard(String name, Map<String, String> peerAddresses) {
-        super(name, peerAddresses, Optional.of(configParams));
+    private Shard(ShardIdentifier name, Map<ShardIdentifier, String> peerAddresses,
+            InMemoryDOMDataStoreConfigProperties dataStoreProperties) {
+        super(name.toString(), mapPeerAddresses(peerAddresses), Optional.of(configParams));
 
         this.name = name;
 
@@ -96,21 +105,41 @@ public class Shard extends RaftActor {
 
         this.persistent = !"false".equals(setting);
 
-        LOG.info("Creating shard : {} persistent : {}", name, persistent);
+        LOG.info("Shard created : {} persistent : {}", name, persistent);
 
-        store = InMemoryDOMDataStoreFactory.create(name, null);
+        store = InMemoryDOMDataStoreFactory.create(name.toString(), null, dataStoreProperties);
 
-        shardMBean = ShardMBeanFactory.getShardStatsMBean(name);
+        shardMBean = ShardMBeanFactory.getShardStatsMBean(name.toString());
 
     }
 
-    public static Props props(final String name,
-        final Map<String, String> peerAddresses) {
+    private static Map<String, String> mapPeerAddresses(
+        Map<ShardIdentifier, String> peerAddresses) {
+        Map<String, String> map = new HashMap<>();
+
+        for (Map.Entry<ShardIdentifier, String> entry : peerAddresses
+            .entrySet()) {
+            map.put(entry.getKey().toString(), entry.getValue());
+        }
+
+        return map;
+    }
+
+
+
+
+    public static Props props(final ShardIdentifier name,
+        final Map<ShardIdentifier, String> peerAddresses,
+        final InMemoryDOMDataStoreConfigProperties dataStoreProperties) {
+        Preconditions.checkNotNull(name, "name should not be null");
+        Preconditions
+            .checkNotNull(peerAddresses, "peerAddresses should not be null");
+
         return Props.create(new Creator<Shard>() {
 
             @Override
             public Shard create() throws Exception {
-                return new Shard(name, peerAddresses);
+                return new Shard(name, peerAddresses, dataStoreProperties);
             }
 
         });
@@ -143,56 +172,67 @@ public class Shard extends RaftActor {
             }
         } else if (message instanceof PeerAddressResolved) {
             PeerAddressResolved resolved = (PeerAddressResolved) message;
-            setPeerAddress(resolved.getPeerId(), resolved.getPeerAddress());
-        } else{
+            setPeerAddress(resolved.getPeerId().toString(),
+                resolved.getPeerAddress());
+        } else {
             super.onReceiveCommand(message);
         }
     }
 
     private ActorRef createTypedTransactionActor(
-        CreateTransaction createTransaction, String transactionId) {
+        CreateTransaction createTransaction,
+        ShardTransactionIdentifier transactionId) {
         if (createTransaction.getTransactionType()
             == TransactionProxy.TransactionType.READ_ONLY.ordinal()) {
+
             shardMBean.incrementReadOnlyTransactionCount();
+
             return getContext().actorOf(
                 ShardTransaction
                     .props(store.newReadOnlyTransaction(), getSelf(),
-                        schemaContext), transactionId);
+                        schemaContext), transactionId.toString());
 
         } else if (createTransaction.getTransactionType()
             == TransactionProxy.TransactionType.READ_WRITE.ordinal()) {
+
             shardMBean.incrementReadWriteTransactionCount();
+
             return getContext().actorOf(
                 ShardTransaction
                     .props(store.newReadWriteTransaction(), getSelf(),
-                        schemaContext), transactionId);
+                        schemaContext), transactionId.toString());
 
 
         } else if (createTransaction.getTransactionType()
             == TransactionProxy.TransactionType.WRITE_ONLY.ordinal()) {
+
             shardMBean.incrementWriteOnlyTransactionCount();
+
             return getContext().actorOf(
                 ShardTransaction
                     .props(store.newWriteOnlyTransaction(), getSelf(),
-                        schemaContext), transactionId);
+                        schemaContext), transactionId.toString());
         } else {
             throw new IllegalArgumentException(
-                "CreateTransaction message has unidentified transaction type="
+                "Shard="+name + ":CreateTransaction message has unidentified transaction type="
                     + createTransaction.getTransactionType());
         }
     }
 
     private void createTransaction(CreateTransaction createTransaction) {
 
-        String transactionId = "shard-" + createTransaction.getTransactionId();
-        LOG.info("Creating transaction : {} ", transactionId);
+        ShardTransactionIdentifier transactionId =
+            ShardTransactionIdentifier.builder()
+                .remoteTransactionId(createTransaction.getTransactionId())
+                .build();
+        LOG.debug("Creating transaction : {} ", transactionId);
         ActorRef transactionActor =
             createTypedTransactionActor(createTransaction, transactionId);
 
         getSender()
             .tell(new CreateTransactionReply(
-                Serialization.serializedActorPath(transactionActor),
-                createTransaction.getTransactionId()).toSerializable(),
+                    Serialization.serializedActorPath(transactionActor),
+                    createTransaction.getTransactionId()).toSerializable(),
                 getSelf());
     }
 
@@ -202,9 +242,9 @@ public class Shard extends RaftActor {
         DOMStoreThreePhaseCommitCohort cohort =
             modificationToCohort.remove(serialized);
         if (cohort == null) {
-            LOG.error(
-                "Could not find cohort for modification : {}", modification);
-            LOG.info("Writing modification using a new transaction");
+            LOG.debug(
+                "Could not find cohort for modification : {}. Writing modification using a new transaction",
+                modification);
             DOMStoreReadWriteTransaction transaction =
                 store.newReadWriteTransaction();
             modification.apply(transaction);
@@ -227,23 +267,21 @@ public class Shard extends RaftActor {
 
         final ListenableFuture<Void> future = cohort.commit();
         final ActorRef self = getSelf();
-        future.addListener(new Runnable() {
-            @Override
-            public void run() {
-                try {
-                    future.get();
-                        sender
-                            .tell(new CommitTransactionReply().toSerializable(),
-                                self);
-                        shardMBean.incrementCommittedTransactionCount();
-                        shardMBean.setLastCommittedTransactionTime(new Date());
-
-                } catch (InterruptedException | ExecutionException e) {
-                    shardMBean.incrementFailedTransactionsCount();
-                    sender.tell(new akka.actor.Status.Failure(e),self);
-                }
+
+        Futures.addCallback(future, new FutureCallback<Void>() {
+            public void onSuccess(Void v) {
+               sender.tell(new CommitTransactionReply().toSerializable(),self);
+               shardMBean.incrementCommittedTransactionCount();
+               shardMBean.setLastCommittedTransactionTime(new Date());
             }
-        }, getContext().dispatcher());
+
+            public void onFailure(Throwable t) {
+                LOG.error(t, "An exception happened during commit");
+                shardMBean.incrementFailedTransactionsCount();
+                sender.tell(new akka.actor.Status.Failure(t), self);
+            }
+        });
+
     }
 
     private void handleForwardedCommit(ForwardedCommitTransaction message) {
@@ -269,7 +307,7 @@ public class Shard extends RaftActor {
     private void registerChangeListener(
         RegisterChangeListener registerChangeListener) {
 
-        LOG.debug("registerDataChangeListener for " + registerChangeListener
+        LOG.debug("registerDataChangeListener for {}", registerChangeListener
             .getPath());
 
 
@@ -301,8 +339,8 @@ public class Shard extends RaftActor {
                 DataChangeListenerRegistration.props(registration));
 
         LOG.debug(
-            "registerDataChangeListener sending reply, listenerRegistrationPath = "
-                + listenerRegistration.path().toString());
+            "registerDataChangeListener sending reply, listenerRegistrationPath = {} "
+            , listenerRegistration.path().toString());
 
         getSender()
             .tell(new RegisterChangeListenerReply(listenerRegistration.path()),
@@ -330,7 +368,9 @@ public class Shard extends RaftActor {
             if (modification != null) {
                 commit(clientActor, modification);
             } else {
-                LOG.error("modification is null - this is very unexpected");
+                LOG.error(
+                    "modification is null - this is very unexpected, clientActor = {}, identifier = {}",
+                    identifier, clientActor.path().toString());
             }
 
 
@@ -338,9 +378,10 @@ public class Shard extends RaftActor {
             LOG.error("Unknown state received {}", data);
         }
 
+        // Update stats
         ReplicatedLogEntry lastLogEntry = getLastLogEntry();
 
-        if(lastLogEntry != null){
+        if (lastLogEntry != null) {
             shardMBean.setLastLogIndex(lastLogEntry.getIndex());
             shardMBean.setLastLogTerm(lastLogEntry.getTerm());
         }
@@ -373,7 +414,7 @@ public class Shard extends RaftActor {
     }
 
     @Override public String persistenceId() {
-        return this.name;
+        return this.name.toString();
     }