+++ /dev/null
-/*
- * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
- * 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 com.google.common.base.Optional;
-import com.google.common.util.concurrent.SettableFuture;
-import org.opendaylight.controller.cluster.datastore.identifiers.TransactionIdentifier;
-import org.opendaylight.controller.cluster.datastore.messages.BatchedModifications;
-import org.opendaylight.controller.cluster.datastore.messages.CloseTransaction;
-import org.opendaylight.controller.cluster.datastore.messages.DataExists;
-import org.opendaylight.controller.cluster.datastore.messages.DataExistsReply;
-import org.opendaylight.controller.cluster.datastore.messages.ReadData;
-import org.opendaylight.controller.cluster.datastore.messages.ReadDataReply;
-import org.opendaylight.controller.cluster.datastore.messages.SerializableMessage;
-import org.opendaylight.controller.cluster.datastore.modification.DeleteModification;
-import org.opendaylight.controller.cluster.datastore.modification.MergeModification;
-import org.opendaylight.controller.cluster.datastore.modification.Modification;
-import org.opendaylight.controller.cluster.datastore.modification.WriteModification;
-import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
-import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import scala.concurrent.Future;
-
-/**
- * Redirects front-end transaction operations to a shard for processing. Instances of this class are used
- * when the destination shard is remote to the caller.
- *
- * @author Thomas Pantelis
- */
-public class RemoteTransactionContext extends AbstractTransactionContext {
- private static final Logger LOG = LoggerFactory.getLogger(RemoteTransactionContext.class);
-
- private final ActorContext actorContext;
- private final ActorSelection actor;
- private final boolean isTxActorLocal;
- private final short remoteTransactionVersion;
-
- private final OperationLimiter operationCompleter;
- private BatchedModifications batchedModifications;
- private int totalBatchedModificationsSent;
-
- protected RemoteTransactionContext(ActorSelection actor, TransactionIdentifier identifier,
- ActorContext actorContext, boolean isTxActorLocal,
- short remoteTransactionVersion, OperationLimiter limiter) {
- super(identifier);
- this.actor = actor;
- this.actorContext = actorContext;
- this.isTxActorLocal = isTxActorLocal;
- this.remoteTransactionVersion = remoteTransactionVersion;
- this.operationCompleter = limiter;
- }
-
- private Future<Object> completeOperation(Future<Object> operationFuture){
- operationFuture.onComplete(this.operationCompleter, actorContext.getClientDispatcher());
- return operationFuture;
- }
-
-
- private ActorSelection getActor() {
- return actor;
- }
-
- protected ActorContext getActorContext() {
- return actorContext;
- }
-
- protected short getRemoteTransactionVersion() {
- return remoteTransactionVersion;
- }
-
- protected Future<Object> executeOperationAsync(SerializableMessage msg) {
- return completeOperation(actorContext.executeOperationAsync(getActor(), isTxActorLocal ? msg : msg.toSerializable()));
- }
-
- @Override
- public void closeTransaction() {
- LOG.debug("Tx {} closeTransaction called", getIdentifier());
- TransactionContextCleanup.untrack(this);
-
- actorContext.sendOperationAsync(getActor(), CloseTransaction.INSTANCE.toSerializable());
- }
-
- @Override
- public boolean supportsDirectCommit() {
- return true;
- }
-
- @Override
- public Future<Object> directCommit() {
- LOG.debug("Tx {} directCommit called", getIdentifier());
-
- // Send the remaining batched modifications, if any, with the ready flag set.
-
- return sendBatchedModifications(true, true);
- }
-
- @Override
- public Future<ActorSelection> readyTransaction() {
- logModificationCount();
-
- LOG.debug("Tx {} readyTransaction called", getIdentifier());
-
- // Send the remaining batched modifications, if any, with the ready flag set.
-
- Future<Object> lastModificationsFuture = sendBatchedModifications(true, false);
-
- return transformReadyReply(lastModificationsFuture);
- }
-
- protected Future<ActorSelection> transformReadyReply(final Future<Object> readyReplyFuture) {
- // Transform the last reply Future into a Future that returns the cohort actor path from
- // the last reply message. That's the end result of the ready operation.
-
- return TransactionReadyReplyMapper.transform(readyReplyFuture, actorContext, getIdentifier());
- }
-
- private BatchedModifications newBatchedModifications() {
- return new BatchedModifications(getIdentifier().toString(), remoteTransactionVersion, getIdentifier().getChainId());
- }
-
- private void batchModification(Modification modification) {
- incrementModificationCount();
- if(batchedModifications == null) {
- batchedModifications = newBatchedModifications();
- }
-
- batchedModifications.addModification(modification);
-
- if(batchedModifications.getModifications().size() >=
- actorContext.getDatastoreContext().getShardBatchedModificationCount()) {
- sendBatchedModifications();
- }
- }
-
- protected Future<Object> sendBatchedModifications() {
- return sendBatchedModifications(false, false);
- }
-
- protected Future<Object> sendBatchedModifications(boolean ready, boolean doCommitOnReady) {
- Future<Object> sent = null;
- if(ready || (batchedModifications != null && !batchedModifications.getModifications().isEmpty())) {
- if(batchedModifications == null) {
- batchedModifications = newBatchedModifications();
- }
-
- if(LOG.isDebugEnabled()) {
- LOG.debug("Tx {} sending {} batched modifications, ready: {}", getIdentifier(),
- batchedModifications.getModifications().size(), ready);
- }
-
- batchedModifications.setReady(ready);
- batchedModifications.setDoCommitOnReady(doCommitOnReady);
- batchedModifications.setTotalMessagesSent(++totalBatchedModificationsSent);
- sent = executeOperationAsync(batchedModifications);
-
- if(ready) {
- batchedModifications = null;
- } else {
- batchedModifications = newBatchedModifications();
- }
- }
-
- return sent;
- }
-
- @Override
- public void deleteData(YangInstanceIdentifier path) {
- LOG.debug("Tx {} deleteData called path = {}", getIdentifier(), path);
-
- batchModification(new DeleteModification(path));
- }
-
- @Override
- public void mergeData(YangInstanceIdentifier path, NormalizedNode<?, ?> data) {
- LOG.debug("Tx {} mergeData called path = {}", getIdentifier(), path);
-
- batchModification(new MergeModification(path, data));
- }
-
- @Override
- public void writeData(YangInstanceIdentifier path, NormalizedNode<?, ?> data) {
- LOG.debug("Tx {} writeData called path = {}", getIdentifier(), path);
-
- batchModification(new WriteModification(path, data));
- }
-
- @Override
- public void readData(final YangInstanceIdentifier path,
- final SettableFuture<Optional<NormalizedNode<?, ?>>> returnFuture ) {
-
- LOG.debug("Tx {} readData called path = {}", getIdentifier(), path);
-
- // Send any batched modifications. This is necessary to honor the read uncommitted semantics of the
- // public API contract.
-
- sendBatchedModifications();
-
- OnComplete<Object> onComplete = new OnComplete<Object>() {
- @Override
- public void onComplete(Throwable failure, Object readResponse) throws Throwable {
- if(failure != null) {
- LOG.debug("Tx {} read operation failed: {}", getIdentifier(), failure);
- returnFuture.setException(new ReadFailedException(
- "Error reading data for path " + path, failure));
-
- } else {
- LOG.debug("Tx {} read operation succeeded", getIdentifier(), failure);
-
- if (readResponse instanceof ReadDataReply) {
- ReadDataReply reply = (ReadDataReply) readResponse;
- returnFuture.set(Optional.<NormalizedNode<?, ?>>fromNullable(reply.getNormalizedNode()));
-
- } else if (ReadDataReply.isSerializedType(readResponse)) {
- ReadDataReply reply = ReadDataReply.fromSerializable(readResponse);
- returnFuture.set(Optional.<NormalizedNode<?, ?>>fromNullable(reply.getNormalizedNode()));
-
- } else {
- returnFuture.setException(new ReadFailedException(
- "Invalid response reading data for path " + path));
- }
- }
- }
- };
-
- Future<Object> readFuture = executeOperationAsync(new ReadData(path));
-
- readFuture.onComplete(onComplete, actorContext.getClientDispatcher());
- }
-
- @Override
- public void dataExists(final YangInstanceIdentifier path, final SettableFuture<Boolean> returnFuture) {
-
- LOG.debug("Tx {} dataExists called path = {}", getIdentifier(), path);
-
- // Send any batched modifications. This is necessary to honor the read uncommitted semantics of the
- // public API contract.
-
- sendBatchedModifications();
-
- OnComplete<Object> onComplete = new OnComplete<Object>() {
- @Override
- public void onComplete(Throwable failure, Object response) throws Throwable {
- if(failure != null) {
- LOG.debug("Tx {} dataExists operation failed: {}", getIdentifier(), failure);
- returnFuture.setException(new ReadFailedException(
- "Error checking data exists for path " + path, failure));
- } else {
- LOG.debug("Tx {} dataExists operation succeeded", getIdentifier(), failure);
-
- if (response instanceof DataExistsReply) {
- returnFuture.set(Boolean.valueOf(((DataExistsReply) response).exists()));
-
- } else if (response.getClass().equals(DataExistsReply.SERIALIZABLE_CLASS)) {
- returnFuture.set(Boolean.valueOf(DataExistsReply.fromSerializable(response).exists()));
-
- } else {
- returnFuture.setException(new ReadFailedException(
- "Invalid response checking exists for path " + path));
- }
- }
- }
- };
-
- Future<Object> future = executeOperationAsync(new DataExists(path));
-
- future.onComplete(onComplete, actorContext.getClientDispatcher());
- }
-}
Code Review / controller.git / blobdiff