*/
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.base.Function;
-import com.google.common.base.Preconditions;
-import com.google.common.base.Supplier;
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.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.TreeMap;
import java.util.TreeSet;
import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
+import org.opendaylight.controller.cluster.datastore.TransactionModificationOperation.DeleteOperation;
+import org.opendaylight.controller.cluster.datastore.TransactionModificationOperation.MergeOperation;
+import org.opendaylight.controller.cluster.datastore.TransactionModificationOperation.WriteOperation;
import org.opendaylight.controller.cluster.datastore.messages.AbstractRead;
import org.opendaylight.controller.cluster.datastore.messages.DataExists;
import org.opendaylight.controller.cluster.datastore.messages.ReadData;
-import org.opendaylight.controller.cluster.datastore.modification.AbstractModification;
-import org.opendaylight.controller.cluster.datastore.modification.DeleteModification;
-import org.opendaylight.controller.cluster.datastore.modification.MergeModification;
-import org.opendaylight.controller.cluster.datastore.modification.WriteModification;
import org.opendaylight.controller.cluster.datastore.utils.ActorUtils;
import org.opendaylight.controller.cluster.datastore.utils.NormalizedNodeAggregator;
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.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 AbstractTransactionContextFactory<?> txContextFactory;
super(txContextFactory.nextIdentifier(), txContextFactory.getActorUtils().getDatastoreContext()
.isTransactionDebugContextEnabled());
this.txContextFactory = txContextFactory;
- this.type = Preconditions.checkNotNull(type);
+ this.type = requireNonNull(type);
LOG.debug("New {} Tx - {}", type, getIdentifier());
}
}
private <T> FluentFuture<T> executeRead(final String shardName, final AbstractRead<T> readCmd) {
- Preconditions.checkState(type != TransactionType.WRITE_ONLY,
- "Reads from write-only transactions are not allowed");
+ checkState(type != TransactionType.WRITE_ONLY, "Reads from write-only transactions are not allowed");
LOG.trace("Tx {} {} {}", getIdentifier(), readCmd.getClass().getSimpleName(), readCmd.getPath());
@Override
public FluentFuture<Optional<NormalizedNode<?, ?>>> read(final YangInstanceIdentifier path) {
- Preconditions.checkState(type != TransactionType.WRITE_ONLY,
- "Reads from write-only transactions are not allowed");
- Preconditions.checkNotNull(path, "path should not be null");
+ checkState(type != TransactionType.WRITE_ONLY, "Reads from write-only transactions are not allowed");
+ requireNonNull(path, "path should not be null");
LOG.trace("Tx {} read {}", getIdentifier(), path);
- return path.isEmpty() ? readAllData() : singleShardRead(shardNameFromIdentifier(path), path);
+ return path.isEmpty() ? readAllData() : singleShardRead(shardNameFromIdentifier(path), path);
}
private FluentFuture<Optional<NormalizedNode<?, ?>>> singleShardRead(
final Collection<FluentFuture<Optional<NormalizedNode<?, ?>>>> futures = new ArrayList<>(allShardNames.size());
for (String shardName : allShardNames) {
- futures.add(singleShardRead(shardName, YangInstanceIdentifier.EMPTY));
+ futures.add(singleShardRead(shardName, YangInstanceIdentifier.empty()));
}
final ListenableFuture<List<Optional<NormalizedNode<?, ?>>>> listFuture = Futures.allAsList(futures);
final ListenableFuture<Optional<NormalizedNode<?, ?>>> aggregateFuture;
- aggregateFuture = Futures.transform(listFuture,
- (Function<List<Optional<NormalizedNode<?, ?>>>, Optional<NormalizedNode<?, ?>>>) 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());
+ 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);
}
@Override
public void delete(final YangInstanceIdentifier path) {
- executeModification(new DeleteModification(path));
+ checkModificationState("delete", path);
+
+ if (path.isEmpty()) {
+ deleteAllData();
+ } else {
+ executeModification(new DeleteOperation(path));
+ }
+ }
+
+ private void deleteAllData() {
+ for (String shardName : getActorUtils().getConfiguration().getAllShardNames()) {
+ getContextWrapper(shardName).maybeExecuteTransactionOperation(ROOT_DELETE_OPERATION);
+ }
}
@Override
public void merge(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
- executeModification(new MergeModification(path, data));
+ checkModificationState("merge", path);
+
+ if (path.isEmpty()) {
+ mergeAllData(checkRootData(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()));
+ }
}
@Override
public void write(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
- executeModification(new WriteModification(path, data));
+ checkModificationState("write", path);
+
+ if (path.isEmpty()) {
+ writeAllData(checkRootData(data));
+ } else {
+ executeModification(new WriteOperation(path, data));
+ }
}
- private void executeModification(final AbstractModification modification) {
- checkModificationState();
+ 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()));
+ }
- LOG.trace("Tx {} executeModification {} {}", getIdentifier(), modification.getClass().getSimpleName(),
- modification.getPath());
+ // 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);
+ }
- TransactionContextWrapper contextWrapper = getContextWrapper(modification.getPath());
- contextWrapper.maybeExecuteTransactionOperation(new TransactionOperation() {
- @Override
- protected void invoke(final TransactionContext transactionContext, final Boolean havePermit) {
- transactionContext.executeModification(modification, havePermit);
- }
- });
+ // Now dispatch all writes
+ for (Entry<String, DataContainerNodeBuilder<NodeIdentifier, ContainerNode>> entry : rootBuilders.entrySet()) {
+ getContextWrapper(entry.getKey()).maybeExecuteTransactionOperation(new WriteOperation(
+ YangInstanceIdentifier.empty(), entry.getValue().build()));
+ }
}
- private void checkModificationState() {
- Preconditions.checkState(type != TransactionType.READ_ONLY,
- "Modification operation on read-only transaction is not allowed");
- Preconditions.checkState(state == TransactionState.OPEN,
- "Transaction is sealed - further modifications are not allowed");
+ 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;
+ }
+
+ private void checkModificationState(final String opName, final YangInstanceIdentifier path) {
+ checkState(type != TransactionType.READ_ONLY, "Modification operation on read-only transaction is not allowed");
+ checkState(state == TransactionState.OPEN, "Transaction is sealed - further modifications are not allowed");
+ LOG.trace("Tx {} {} {}", getIdentifier(), opName, path);
}
private boolean seal(final TransactionState newState) {
if (state == TransactionState.OPEN) {
state = newState;
return true;
- } else {
- return false;
}
+ return false;
}
@Override
public final void close() {
if (!seal(TransactionState.CLOSED)) {
- Preconditions.checkState(state == TransactionState.CLOSED, "Transaction %s is ready, it cannot be closed",
+ checkState(state == TransactionState.CLOSED, "Transaction %s is ready, it cannot be closed",
getIdentifier());
// Idempotent no-op as per AutoCloseable recommendation
return;
@Override
public final AbstractThreePhaseCommitCohort<?> ready() {
- Preconditions.checkState(type != TransactionType.READ_ONLY, "Read-only transactions cannot be readied");
+ checkState(type != TransactionType.READ_ONLY, "Read-only transactions cannot be readied");
final boolean success = seal(TransactionState.READY);
- Preconditions.checkState(success, "Transaction %s is %s, it cannot be readied", getIdentifier(), state);
+ checkState(success, "Transaction %s is %s, it cannot be readied", getIdentifier(), state);
LOG.debug("Tx {} Readying {} components for commit", getIdentifier(), txContextWrappers.size());
// 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
// TransactionContext is available.
- Supplier<Short> txVersionSupplier = () -> wrapper.getTransactionContext().getTransactionVersion();
-
cohorts.add(new ThreePhaseCommitCohortProxy.CohortInfo(wrapper.readyTransaction(shardNames),
- txVersionSupplier));
+ () -> wrapper.getTransactionContext().getTransactionVersion()));
}
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 txContextFactory.getActorUtils().getShardStrategyFactory().getStrategy(path).findShard(path);
+ return getActorUtils().getShardStrategyFactory().getStrategy(path).findShard(path);
}
private TransactionContextWrapper getContextWrapper(final YangInstanceIdentifier path) {
return state != TransactionState.OPEN;
}
- ActorUtils getActorUtils() {
+ final ActorUtils getActorUtils() {
return txContextFactory.getActorUtils();
}
}