+++ /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 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.SettableFuture;
-import org.opendaylight.controller.cluster.datastore.identifiers.TransactionIdentifier;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransaction;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import scala.concurrent.Future;
-
-/**
- * Processes front-end transaction operations locally before being committed to the destination shard.
- * Instances of this class are used when the destination shard is local to the caller.
- *
- * @author Thomas Pantelis
- */
-abstract class LocalTransactionContext extends AbstractTransactionContext {
-
- private final DOMStoreTransaction txDelegate;
- private final OperationLimiter limiter;
-
- LocalTransactionContext(TransactionIdentifier identifier, DOMStoreTransaction txDelegate, OperationLimiter limiter) {
- super(identifier);
- this.txDelegate = Preconditions.checkNotNull(txDelegate);
- this.limiter = Preconditions.checkNotNull(limiter);
- }
-
- protected abstract DOMStoreWriteTransaction getWriteDelegate();
-
- protected abstract DOMStoreReadTransaction getReadDelegate();
-
- @Override
- public void writeData(YangInstanceIdentifier path, NormalizedNode<?, ?> data) {
- incrementModificationCount();
- getWriteDelegate().write(path, data);
- limiter.release();
- }
-
- @Override
- public void mergeData(YangInstanceIdentifier path, NormalizedNode<?, ?> data) {
- incrementModificationCount();
- getWriteDelegate().merge(path, data);
- limiter.release();
- }
-
- @Override
- public void deleteData(YangInstanceIdentifier path) {
- incrementModificationCount();
- getWriteDelegate().delete(path);
- limiter.release();
- }
-
- @Override
- public void readData(YangInstanceIdentifier path, final SettableFuture<Optional<NormalizedNode<?, ?>>> proxyFuture) {
- Futures.addCallback(getReadDelegate().read(path), new FutureCallback<Optional<NormalizedNode<?, ?>>>() {
- @Override
- public void onSuccess(Optional<NormalizedNode<?, ?>> result) {
- proxyFuture.set(result);
- limiter.release();
- }
-
- @Override
- public void onFailure(Throwable t) {
- proxyFuture.setException(t);
- limiter.release();
- }
- });
- }
-
- @Override
- public void dataExists(YangInstanceIdentifier path, final SettableFuture<Boolean> proxyFuture) {
- Futures.addCallback(getReadDelegate().exists(path), new FutureCallback<Boolean>() {
- @Override
- public void onSuccess(Boolean result) {
- proxyFuture.set(result);
- limiter.release();
- }
-
- @Override
- public void onFailure(Throwable t) {
- proxyFuture.setException(t);
- limiter.release();
- }
- });
- }
-
- private LocalThreePhaseCommitCohort ready() {
- logModificationCount();
- LocalThreePhaseCommitCohort ready = (LocalThreePhaseCommitCohort) getWriteDelegate().ready();
- limiter.release();
- return ready;
- }
-
- @Override
- public Future<ActorSelection> readyTransaction() {
- return ready().initiateCoordinatedCommit();
- }
-
- @Override
- public Future<Object> directCommit() {
- return ready().initiateDirectCommit();
- }
-
- @Override
- public boolean supportsDirectCommit() {
- return true;
- }
-
- @Override
- public void closeTransaction() {
- txDelegate.close();
- }
-}