--- /dev/null
+/*
+ * Copyright (c) 2015 Brocade Communications Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.cluster.datastore;
+
+import akka.actor.ActorSelection;
+import akka.dispatch.OnComplete;
+import java.util.List;
+import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import scala.concurrent.Future;
+import scala.concurrent.Promise;
+
+final class ChainedTransactionProxy extends TransactionProxy {
+ private static final Logger LOG = LoggerFactory.getLogger(ChainedTransactionProxy.class);
+
+ /**
+ * Stores the ready Futures from the previous Tx in the chain.
+ */
+ private final List<Future<ActorSelection>> previousReadyFutures;
+
+ /**
+ * Stores the ready Futures from this transaction when it is readied.
+ */
+ private volatile List<Future<ActorSelection>> readyFutures;
+
+ ChainedTransactionProxy(ActorContext actorContext, TransactionType transactionType,
+ String transactionChainId, List<Future<ActorSelection>> previousReadyFutures) {
+ super(actorContext, transactionType, transactionChainId);
+ this.previousReadyFutures = previousReadyFutures;
+ }
+
+ List<Future<ActorSelection>> getReadyFutures() {
+ return readyFutures;
+ }
+
+ boolean isReady() {
+ return readyFutures != null;
+ }
+
+ @Override
+ protected void onTransactionReady(List<Future<ActorSelection>> readyFutures) {
+ LOG.debug("onTransactionReady {} pending readyFutures size {} chain {}", getIdentifier(),
+ readyFutures.size(), getTransactionChainId());
+ this.readyFutures = readyFutures;
+ }
+
+ /**
+ * This method is overridden to ensure the previous Tx's ready operations complete
+ * before we initiate the next Tx in the chain to avoid creation failures if the
+ * previous Tx's ready operations haven't completed yet.
+ */
+ @Override
+ protected Future<ActorSelection> sendFindPrimaryShardAsync(final String shardName) {
+ // Check if there are any previous ready Futures, otherwise let the super class handle it.
+ if(previousReadyFutures.isEmpty()) {
+ return super.sendFindPrimaryShardAsync(shardName);
+ }
+
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("Waiting for {} previous ready futures for Tx {} on chain {}",
+ previousReadyFutures.size(), getIdentifier(), getTransactionChainId());
+ }
+
+ // Combine the ready Futures into 1.
+ Future<Iterable<ActorSelection>> combinedFutures = akka.dispatch.Futures.sequence(
+ previousReadyFutures, getActorContext().getClientDispatcher());
+
+ // Add a callback for completion of the combined Futures.
+ final Promise<ActorSelection> returnPromise = akka.dispatch.Futures.promise();
+ OnComplete<Iterable<ActorSelection>> onComplete = new OnComplete<Iterable<ActorSelection>>() {
+ @Override
+ public void onComplete(Throwable failure, Iterable<ActorSelection> notUsed) {
+ if(failure != null) {
+ // A Ready Future failed so fail the returned Promise.
+ returnPromise.failure(failure);
+ } else {
+ LOG.debug("Previous Tx readied - sending FindPrimaryShard for {} on chain {}",
+ getIdentifier(), getTransactionChainId());
+
+ // Send the FindPrimaryShard message and use the resulting Future to complete the
+ // returned Promise.
+ returnPromise.completeWith(ChainedTransactionProxy.super.sendFindPrimaryShardAsync(shardName));
+ }
+ }
+ };
+
+ combinedFutures.onComplete(onComplete, getActorContext().getClientDispatcher());
+
+ return returnPromise.future();
+ }
+}
\ No newline at end of file
package org.opendaylight.controller.cluster.datastore;
import akka.actor.ActorSelection;
-import akka.dispatch.OnComplete;
import com.google.common.base.Preconditions;
import java.util.Collections;
import java.util.List;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
import scala.concurrent.Future;
-import scala.concurrent.Promise;
/**
* TransactionChainProxy acts as a proxy for a DOMStoreTransactionChain created on a remote shard
*/
public class TransactionChainProxy implements DOMStoreTransactionChain {
- private static final Logger LOG = LoggerFactory.getLogger(TransactionChainProxy.class);
-
private interface State {
boolean isReady();
private void checkReadyState(State state) {
Preconditions.checkState(state.isReady(), "Previous transaction is not ready yet");
}
-
- private static class ChainedTransactionProxy extends TransactionProxy {
-
- /**
- * Stores the ready Futures from the previous Tx in the chain.
- */
- private final List<Future<ActorSelection>> previousReadyFutures;
-
- /**
- * Stores the ready Futures from this transaction when it is readied.
- */
- private volatile List<Future<ActorSelection>> readyFutures;
-
- private ChainedTransactionProxy(ActorContext actorContext, TransactionType transactionType,
- String transactionChainId, List<Future<ActorSelection>> previousReadyFutures) {
- super(actorContext, transactionType, transactionChainId);
- this.previousReadyFutures = previousReadyFutures;
- }
-
- List<Future<ActorSelection>> getReadyFutures() {
- return readyFutures;
- }
-
- boolean isReady() {
- return readyFutures != null;
- }
-
- @Override
- protected void onTransactionReady(List<Future<ActorSelection>> readyFutures) {
- LOG.debug("onTransactionReady {} pending readyFutures size {} chain {}", getIdentifier(),
- readyFutures.size(), getTransactionChainId());
- this.readyFutures = readyFutures;
- }
-
- /**
- * This method is overridden to ensure the previous Tx's ready operations complete
- * before we initiate the next Tx in the chain to avoid creation failures if the
- * previous Tx's ready operations haven't completed yet.
- */
- @Override
- protected Future<ActorSelection> sendFindPrimaryShardAsync(final String shardName) {
- // Check if there are any previous ready Futures, otherwise let the super class handle it.
- if(previousReadyFutures.isEmpty()) {
- return super.sendFindPrimaryShardAsync(shardName);
- }
-
- if(LOG.isDebugEnabled()) {
- LOG.debug("Waiting for {} previous ready futures for Tx {} on chain {}",
- previousReadyFutures.size(), getIdentifier(), getTransactionChainId());
- }
-
- // Combine the ready Futures into 1.
- Future<Iterable<ActorSelection>> combinedFutures = akka.dispatch.Futures.sequence(
- previousReadyFutures, getActorContext().getClientDispatcher());
-
- // Add a callback for completion of the combined Futures.
- final Promise<ActorSelection> returnPromise = akka.dispatch.Futures.promise();
- OnComplete<Iterable<ActorSelection>> onComplete = new OnComplete<Iterable<ActorSelection>>() {
- @Override
- public void onComplete(Throwable failure, Iterable<ActorSelection> notUsed) {
- if(failure != null) {
- // A Ready Future failed so fail the returned Promise.
- returnPromise.failure(failure);
- } else {
- LOG.debug("Previous Tx readied - sending FindPrimaryShard for {} on chain {}",
- getIdentifier(), getTransactionChainId());
-
- // Send the FindPrimaryShard message and use the resulting Future to complete the
- // returned Promise.
- returnPromise.completeWith(ChainedTransactionProxy.super.sendFindPrimaryShardAsync(shardName));
- }
- }
- };
-
- combinedFutures.onComplete(onComplete, getActorContext().getClientDispatcher());
-
- return returnPromise.future();
- }
- }
}
Code Review / controller.git / commitdiff