*/
package org.opendaylight.controller.cluster.datastore;
-import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkState;
-import static com.google.common.base.Verify.verifyNotNull;
import static java.util.Objects.requireNonNull;
import akka.actor.ActorSelection;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.Iterables;
import com.google.common.util.concurrent.FluentFuture;
-import com.google.common.util.concurrent.Futures;
-import com.google.common.util.concurrent.ListenableFuture;
-import com.google.common.util.concurrent.MoreExecutors;
import com.google.common.util.concurrent.SettableFuture;
import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Optional;
-import java.util.Set;
import java.util.SortedSet;
import java.util.TreeMap;
import java.util.TreeSet;
import org.opendaylight.controller.cluster.datastore.messages.DataExists;
import org.opendaylight.controller.cluster.datastore.messages.ReadData;
import org.opendaylight.controller.cluster.datastore.utils.ActorUtils;
-import org.opendaylight.controller.cluster.datastore.utils.NormalizedNodeAggregator;
+import org.opendaylight.controller.cluster.datastore.utils.RootScatterGather;
import org.opendaylight.mdsal.dom.spi.store.AbstractDOMStoreTransaction;
import org.opendaylight.mdsal.dom.spi.store.DOMStoreReadWriteTransaction;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
-import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
-import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
-import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import scala.concurrent.Future;
private static final Logger LOG = LoggerFactory.getLogger(TransactionProxy.class);
private static final DeleteOperation ROOT_DELETE_OPERATION = new DeleteOperation(YangInstanceIdentifier.empty());
- private final Map<String, TransactionContextWrapper> txContextWrappers = new TreeMap<>();
+ private final Map<String, AbstractTransactionContextWrapper> txContextWrappers = new TreeMap<>();
private final AbstractTransactionContextFactory<?> txContextFactory;
private final TransactionType type;
private TransactionState state = TransactionState.OPEN;
LOG.trace("Tx {} {} {}", getIdentifier(), readCmd.getClass().getSimpleName(), readCmd.getPath());
final SettableFuture<T> proxyFuture = SettableFuture.create();
- TransactionContextWrapper contextWrapper = getContextWrapper(shardName);
+ AbstractTransactionContextWrapper contextWrapper = wrapperFromShardName(shardName);
contextWrapper.maybeExecuteTransactionOperation(new TransactionOperation() {
@Override
public void invoke(final TransactionContext transactionContext, final Boolean havePermit) {
}
@Override
- public FluentFuture<Optional<NormalizedNode<?, ?>>> read(final YangInstanceIdentifier path) {
+ public FluentFuture<Optional<NormalizedNode>> read(final YangInstanceIdentifier path) {
checkState(type != TransactionType.WRITE_ONLY, "Reads from write-only transactions are not allowed");
requireNonNull(path, "path should not be null");
return path.isEmpty() ? readAllData() : singleShardRead(shardNameFromIdentifier(path), path);
}
- private FluentFuture<Optional<NormalizedNode<?, ?>>> singleShardRead(
- final String shardName, final YangInstanceIdentifier path) {
+ private FluentFuture<Optional<NormalizedNode>> singleShardRead(final String shardName,
+ final YangInstanceIdentifier path) {
return executeRead(shardName, new ReadData(path, DataStoreVersions.CURRENT_VERSION));
}
- private FluentFuture<Optional<NormalizedNode<?, ?>>> readAllData() {
- final Set<String> allShardNames = txContextFactory.getActorUtils().getConfiguration().getAllShardNames();
- final Collection<FluentFuture<Optional<NormalizedNode<?, ?>>>> futures = new ArrayList<>(allShardNames.size());
-
- for (String shardName : allShardNames) {
- futures.add(singleShardRead(shardName, YangInstanceIdentifier.empty()));
- }
-
- final ListenableFuture<List<Optional<NormalizedNode<?, ?>>>> listFuture = Futures.allAsList(futures);
- final ListenableFuture<Optional<NormalizedNode<?, ?>>> aggregateFuture;
-
- aggregateFuture = Futures.transform(listFuture, input -> {
- try {
- return NormalizedNodeAggregator.aggregate(YangInstanceIdentifier.empty(), input,
- txContextFactory.getActorUtils().getSchemaContext(),
- txContextFactory.getActorUtils().getDatastoreContext().getLogicalStoreType());
- } catch (DataValidationFailedException e) {
- throw new IllegalArgumentException("Failed to aggregate", e);
- }
- }, MoreExecutors.directExecutor());
-
- return FluentFuture.from(aggregateFuture);
+ private FluentFuture<Optional<NormalizedNode>> readAllData() {
+ final var actorUtils = getActorUtils();
+ return RootScatterGather.gather(actorUtils, actorUtils.getConfiguration().getAllShardNames().stream()
+ .map(shardName -> singleShardRead(shardName, YangInstanceIdentifier.empty())));
}
@Override
private void deleteAllData() {
for (String shardName : getActorUtils().getConfiguration().getAllShardNames()) {
- getContextWrapper(shardName).maybeExecuteTransactionOperation(ROOT_DELETE_OPERATION);
+ wrapperFromShardName(shardName).maybeExecuteTransactionOperation(ROOT_DELETE_OPERATION);
}
}
@Override
- public void merge(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
+ public void merge(final YangInstanceIdentifier path, final NormalizedNode data) {
checkModificationState("merge", path);
if (path.isEmpty()) {
- mergeAllData(checkRootData(data));
+ mergeAllData(RootScatterGather.castRootNode(data));
} else {
executeModification(new MergeOperation(path, data));
}
}
private void mergeAllData(final ContainerNode rootData) {
- // Populate requests for individual shards that are being touched
- final Map<String, DataContainerNodeBuilder<NodeIdentifier, ContainerNode>> rootBuilders = new HashMap<>();
- for (DataContainerChild<?, ?> child : rootData.getValue()) {
- final String shardName = shardNameFromRootChild(child);
- rootBuilders.computeIfAbsent(shardName,
- unused -> Builders.containerBuilder().withNodeIdentifier(rootData.getIdentifier()))
- .addChild(child);
- }
-
- // Now dispatch all merges
- for (Entry<String, DataContainerNodeBuilder<NodeIdentifier, ContainerNode>> entry : rootBuilders.entrySet()) {
- getContextWrapper(entry.getKey()).maybeExecuteTransactionOperation(new MergeOperation(
- YangInstanceIdentifier.empty(), entry.getValue().build()));
+ if (!rootData.isEmpty()) {
+ RootScatterGather.scatterTouched(rootData, this::wrapperFromRootChild).forEach(
+ scattered -> scattered.shard().maybeExecuteTransactionOperation(
+ new MergeOperation(YangInstanceIdentifier.empty(), scattered.container())));
}
}
@Override
- public void write(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
+ public void write(final YangInstanceIdentifier path, final NormalizedNode data) {
checkModificationState("write", path);
if (path.isEmpty()) {
- writeAllData(checkRootData(data));
+ writeAllData(RootScatterGather.castRootNode(data));
} else {
executeModification(new WriteOperation(path, data));
}
}
private void writeAllData(final ContainerNode rootData) {
- // Open builders for all shards
- final Map<String, DataContainerNodeBuilder<NodeIdentifier, ContainerNode>> rootBuilders = new HashMap<>();
- for (String shardName : getActorUtils().getConfiguration().getAllShardNames()) {
- rootBuilders.put(shardName, Builders.containerBuilder().withNodeIdentifier(rootData.getIdentifier()));
- }
-
- // Now distribute children as needed
- for (DataContainerChild<?, ?> child : rootData.getValue()) {
- final String shardName = shardNameFromRootChild(child);
- verifyNotNull(rootBuilders.get(shardName), "Failed to find builder for %s", shardName).addChild(child);
- }
-
- // Now dispatch all writes
- for (Entry<String, DataContainerNodeBuilder<NodeIdentifier, ContainerNode>> entry : rootBuilders.entrySet()) {
- getContextWrapper(entry.getKey()).maybeExecuteTransactionOperation(new WriteOperation(
- YangInstanceIdentifier.empty(), entry.getValue().build()));
- }
+ RootScatterGather.scatterAll(rootData, this::wrapperFromRootChild,
+ getActorUtils().getConfiguration().getAllShardNames().stream().map(this::wrapperFromShardName)).forEach(
+ scattered -> scattered.shard().maybeExecuteTransactionOperation(
+ new WriteOperation(YangInstanceIdentifier.empty(), scattered.container())));
}
private void executeModification(final TransactionModificationOperation operation) {
- getContextWrapper(operation.path()).maybeExecuteTransactionOperation(operation);
- }
-
- private static ContainerNode checkRootData(final NormalizedNode<?, ?> data) {
- // Root has to be a container
- checkArgument(data instanceof ContainerNode, "Invalid root data %s", data);
- return (ContainerNode) data;
+ wrapperFromShardName(shardNameFromIdentifier(operation.path())).maybeExecuteTransactionOperation(operation);
}
private void checkModificationState(final String opName, final YangInstanceIdentifier path) {
return;
}
- for (TransactionContextWrapper contextWrapper : txContextWrappers.values()) {
+ for (AbstractTransactionContextWrapper contextWrapper : txContextWrappers.values()) {
contextWrapper.maybeExecuteTransactionOperation(new TransactionOperation() {
@Override
public void invoke(final TransactionContext transactionContext, final Boolean havePermit) {
ret = NoOpDOMStoreThreePhaseCommitCohort.INSTANCE;
break;
case 1:
- final Entry<String, TransactionContextWrapper> e = Iterables.getOnlyElement(
+ final Entry<String, AbstractTransactionContextWrapper> e = Iterables.getOnlyElement(
txContextWrappers.entrySet());
ret = createSingleCommitCohort(e.getKey(), e.getValue());
break;
@SuppressWarnings({ "rawtypes", "unchecked" })
private AbstractThreePhaseCommitCohort<?> createSingleCommitCohort(final String shardName,
- final TransactionContextWrapper contextWrapper) {
+ final AbstractTransactionContextWrapper contextWrapper) {
LOG.debug("Tx {} Readying transaction for shard {}", getIdentifier(), shardName);
final List<ThreePhaseCommitCohortProxy.CohortInfo> cohorts = new ArrayList<>(txContextWrappers.size());
final Optional<SortedSet<String>> shardNames = Optional.of(new TreeSet<>(txContextWrappers.keySet()));
- for (Entry<String, TransactionContextWrapper> e : txContextWrappers.entrySet()) {
+ for (Entry<String, AbstractTransactionContextWrapper> e : txContextWrappers.entrySet()) {
LOG.debug("Tx {} Readying transaction for shard {}", getIdentifier(), e.getKey());
- final TransactionContextWrapper wrapper = e.getValue();
+ final AbstractTransactionContextWrapper wrapper = e.getValue();
// The remote tx version is obtained the via TransactionContext which may not be available yet so
// we pass a Supplier to dynamically obtain it. Once the ready Future is resolved the
return new ThreePhaseCommitCohortProxy(txContextFactory.getActorUtils(), cohorts, getIdentifier());
}
- private String shardNameFromRootChild(final DataContainerChild<?, ?> child) {
- return shardNameFromIdentifier(YangInstanceIdentifier.create(child.getIdentifier()));
- }
-
private String shardNameFromIdentifier(final YangInstanceIdentifier path) {
return getActorUtils().getShardStrategyFactory().getStrategy(path).findShard(path);
}
- private TransactionContextWrapper getContextWrapper(final YangInstanceIdentifier path) {
- return getContextWrapper(shardNameFromIdentifier(path));
+ private AbstractTransactionContextWrapper wrapperFromRootChild(final PathArgument childId) {
+ return wrapperFromShardName(shardNameFromIdentifier(YangInstanceIdentifier.create(childId)));
}
- private TransactionContextWrapper getContextWrapper(final String shardName) {
- final TransactionContextWrapper existing = txContextWrappers.get(shardName);
+ private AbstractTransactionContextWrapper wrapperFromShardName(final String shardName) {
+ final AbstractTransactionContextWrapper existing = txContextWrappers.get(shardName);
if (existing != null) {
return existing;
}
- final TransactionContextWrapper fresh = txContextFactory.newTransactionContextWrapper(this, shardName);
+ final AbstractTransactionContextWrapper fresh = txContextFactory.newTransactionContextWrapper(this, shardName);
txContextWrappers.put(shardName, fresh);
return fresh;
}