*/
package org.opendaylight.mdsal.binding.dom.adapter;
-import org.opendaylight.mdsal.common.api.AsyncTransaction;
-import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
-import org.opendaylight.mdsal.common.api.ReadFailedException;
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkState;
+import static java.util.Objects.requireNonNull;
-import org.opendaylight.mdsal.dom.api.DOMDataReadTransaction;
-import com.google.common.base.Optional;
-import com.google.common.base.Preconditions;
-import com.google.common.util.concurrent.CheckedFuture;
+import com.google.common.base.VerifyException;
+import com.google.common.collect.ImmutableList;
+import com.google.common.util.concurrent.FluentFuture;
import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.MoreExecutors;
+import java.util.Optional;
+import org.eclipse.jdt.annotation.NonNull;
+import org.opendaylight.mdsal.binding.api.query.QueryExpression;
+import org.opendaylight.mdsal.binding.api.query.QueryResult;
+import org.opendaylight.mdsal.binding.dom.adapter.query.DefaultQuery;
+import org.opendaylight.mdsal.binding.dom.codec.api.BindingAugmentationCodecTreeNode;
+import org.opendaylight.mdsal.binding.dom.codec.api.BindingDataObjectCodecTreeNode;
+import org.opendaylight.mdsal.binding.dom.codec.api.CommonDataObjectCodecTreeNode;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeQueryOperations;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeReadOperations;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeTransaction;
+import org.opendaylight.mdsal.dom.api.query.DOMQuery;
+import org.opendaylight.mdsal.dom.api.query.DOMQueryResult;
+import org.opendaylight.mdsal.dom.spi.query.DOMQueryEvaluator;
import org.opendaylight.yangtools.concepts.Delegator;
import org.opendaylight.yangtools.concepts.Identifiable;
-import org.opendaylight.yangtools.util.concurrent.MappingCheckedFuture;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-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;
-abstract class AbstractForwardedTransaction<T extends AsyncTransaction<YangInstanceIdentifier, NormalizedNode<?, ?>>>
- implements Delegator<T>, Identifiable<Object> {
+abstract class AbstractForwardedTransaction<T extends DOMDataTreeTransaction> implements Delegator<T>,
+ Identifiable<Object> {
+ private static final Logger LOG = LoggerFactory.getLogger(AbstractForwardedTransaction.class);
- private final T delegate;
- private final BindingToNormalizedNodeCodec codec;
+ private final @NonNull AdapterContext adapterContext;
+ private final @NonNull T delegate;
- public AbstractForwardedTransaction(final T delegateTx, final BindingToNormalizedNodeCodec codec) {
- this.delegate = Preconditions.checkNotNull(delegateTx, "Delegate must not be null");
- this.codec = Preconditions.checkNotNull(codec, "Codec must not be null");
+ AbstractForwardedTransaction(final AdapterContext adapterContext, final T delegateTx) {
+ this.adapterContext = requireNonNull(adapterContext, "Codec must not be null");
+ delegate = requireNonNull(delegateTx, "Delegate must not be null");
}
-
@Override
- public final Object getIdentifier() {
+ public final Object getIdentifier() {
return delegate.getIdentifier();
}
@Override
- public final T getDelegate() {
+ public final T getDelegate() {
return delegate;
}
- @SuppressWarnings("unchecked")
- protected final <S extends AsyncTransaction<YangInstanceIdentifier, NormalizedNode<?, ?>>> S getDelegateChecked(final Class<S> txType) {
- Preconditions.checkState(txType.isInstance(delegate));
- return (S) delegate;
+ protected final <S extends DOMDataTreeTransaction> S getDelegateChecked(final Class<S> txType) {
+ checkState(txType.isInstance(delegate));
+ return txType.cast(delegate);
}
- protected final BindingToNormalizedNodeCodec getCodec() {
- return codec;
+ protected final AdapterContext adapterContext() {
+ return adapterContext;
}
- protected final <D extends DataObject> CheckedFuture<Optional<D>,ReadFailedException> doRead(
- final DOMDataReadTransaction readTx, final LogicalDatastoreType store,
+ protected final <D extends DataObject> @NonNull FluentFuture<Optional<D>> doRead(
+ final DOMDataTreeReadOperations readOps, final LogicalDatastoreType store,
final InstanceIdentifier<D> path) {
- Preconditions.checkArgument(!path.isWildcarded(), "Invalid read of wildcarded path %s", path);
+ checkArgument(!path.isWildcarded(), "Invalid read of wildcarded path %s", path);
+
+ final var codecWithPath = adapterContext.currentSerializer().getSubtreeCodecWithPath(path);
+ final var domPath = codecWithPath.path();
+ final var codec = codecWithPath.codec();
+ return readOps.read(store, domPath)
+ .transform(optData -> optData.flatMap(data -> decodeRead(codec, data)), MoreExecutors.directExecutor());
+ }
+
+ @SuppressWarnings("unchecked")
+ private static <D extends DataObject> Optional<D> decodeRead(final CommonDataObjectCodecTreeNode<D> codec,
+ final @NonNull NormalizedNode data) {
+ if (codec instanceof BindingDataObjectCodecTreeNode<?> dataObject) {
+ return Optional.of((D) dataObject.deserialize(data));
+ } else if (codec instanceof BindingAugmentationCodecTreeNode<?> augment) {
+ return Optional.ofNullable((D) augment.filterFrom(data));
+ } else {
+ throw new VerifyException("Unhandled codec " + codec);
+ }
+ }
+
+ protected final @NonNull FluentFuture<Boolean> doExists(final DOMDataTreeReadOperations readOps,
+ final LogicalDatastoreType store, final InstanceIdentifier<?> path) {
+ checkArgument(!path.isWildcarded(), "Invalid exists of wildcarded path %s", path);
+
+ final var codecWithPath = adapterContext.currentSerializer().getSubtreeCodecWithPath(path);
+ final var domPath = codecWithPath.path();
+ if (codecWithPath.codec() instanceof BindingAugmentationCodecTreeNode<?> augment) {
+ // Complicated case: we need to check if any of the children exist, as DOM layer just does not know about
+ // this indirection
+ return FluentFuture.from(Futures.transform(
+ Futures.allAsList(augment.childPathArguments().stream()
+ .map(child -> readOps.exists(store, domPath.node(child)))
+ .collect(ImmutableList.toImmutableList())),
+ children -> children.contains(Boolean.TRUE),
+ MoreExecutors.directExecutor()));
+ } else {
+ return readOps.exists(store, domPath);
+ }
+ }
+
+ protected static final <T extends @NonNull DataObject> @NonNull FluentFuture<QueryResult<T>> doExecute(
+ final DOMDataTreeReadOperations readOps, final @NonNull LogicalDatastoreType store,
+ final @NonNull QueryExpression<T> query) {
+ checkArgument(query instanceof DefaultQuery, "Unsupported query type %s", query);
+ final var defaultQuery = (DefaultQuery<T>) query;
+
+ final var domFuture = requireNonNull(readOps) instanceof DOMDataTreeQueryOperations dtqOps
+ ? dtqOps.execute(store, defaultQuery.asDOMQuery())
+ : fallbackExecute(readOps, store, defaultQuery.asDOMQuery());
+
+ return domFuture.transform(defaultQuery::toQueryResult, MoreExecutors.directExecutor());
+ }
- return MappingCheckedFuture.create(
- Futures.transform(readTx.read(store, codec.toYangInstanceIdentifierBlocking(path)),
- codec.deserializeFunction(path)),
- ReadFailedException.MAPPER);
+ private static FluentFuture<DOMQueryResult> fallbackExecute(final @NonNull DOMDataTreeReadOperations readOps,
+ final @NonNull LogicalDatastoreType store, final @NonNull DOMQuery domQuery) {
+ LOG.trace("Fallback evaluation of {} on {}", domQuery, readOps);
+ return readOps.read(store, domQuery.getRoot())
+ .transform(
+ node -> node.map(data -> DOMQueryEvaluator.evaluateOn(domQuery, data)).orElse(DOMQueryResult.of()),
+ // TODO: execute on a dedicated thread pool
+ MoreExecutors.directExecutor());
}
}
Code Review / mdsal.git / blobdiff