*/
package org.opendaylight.mdsal.binding.dom.adapter;
-import com.google.common.base.Preconditions;
-import java.util.ArrayList;
+import com.google.common.base.MoreObjects.ToStringHelper;
import java.util.Collection;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Optional;
import org.opendaylight.mdsal.binding.api.DataObjectModification;
-import org.opendaylight.mdsal.binding.dom.codec.api.BindingCodecTreeNode;
-import org.opendaylight.yangtools.yang.binding.Augmentation;
-import org.opendaylight.yangtools.yang.binding.ChildOf;
+import org.opendaylight.mdsal.binding.dom.codec.api.BindingDataObjectCodecTreeNode;
import org.opendaylight.yangtools.yang.binding.DataObject;
-import org.opendaylight.yangtools.yang.binding.Identifiable;
-import org.opendaylight.yangtools.yang.binding.Identifier;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.PathArgument;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.binding.ExactDataObjectStep;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidateNode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+import org.opendaylight.yangtools.yang.data.tree.api.DataTreeCandidateNode;
/**
* Lazily translated {@link DataObjectModification} based on {@link DataTreeCandidateNode}.
*
* <p>
- * {@link LazyDataObjectModification} represents Data tree change event,
- * but whole tree is not translated or resolved eagerly, but only child nodes
- * which are directly accessed by user of data object modification.
+ * {@link LazyDataObjectModification} represents Data tree change event, but whole tree is not translated or resolved
+ * eagerly, but only child nodes which are directly accessed by user of data object modification.
*
* @param <T> Type of Binding Data Object
*/
-final class LazyDataObjectModification<T extends DataObject> implements DataObjectModification<T> {
-
- private static final Logger LOG = LoggerFactory.getLogger(LazyDataObjectModification.class);
-
- private final BindingCodecTreeNode<T> codec;
- private final DataTreeCandidateNode domData;
- private final PathArgument identifier;
-
- private volatile Collection<DataObjectModification<? extends DataObject>> childNodesCache;
- private volatile ModificationType modificationType;
-
- private LazyDataObjectModification(final BindingCodecTreeNode<T> codec, final DataTreeCandidateNode domData) {
- this.codec = Preconditions.checkNotNull(codec);
- this.domData = Preconditions.checkNotNull(domData);
- this.identifier = codec.deserializePathArgument(domData.getIdentifier());
- }
-
- static <T extends DataObject> DataObjectModification<T> create(final BindingCodecTreeNode<T> codec,
- final DataTreeCandidateNode domData) {
- return new LazyDataObjectModification<>(codec,domData);
- }
-
- private static Collection<DataObjectModification<? extends DataObject>> from(final BindingCodecTreeNode<?>
- parentCodec, final Collection<DataTreeCandidateNode> domChildNodes) {
- final List<DataObjectModification<? extends DataObject>> result = new ArrayList<>(domChildNodes.size());
- populateList(result, parentCodec, domChildNodes);
- return result;
- }
-
- private static void populateList(final List<DataObjectModification<? extends DataObject>> result,
- final BindingCodecTreeNode<?> parentCodec, final Collection<DataTreeCandidateNode> domChildNodes) {
- for (final DataTreeCandidateNode domChildNode : domChildNodes) {
- final BindingStructuralType type = BindingStructuralType.from(domChildNode);
- if (type != BindingStructuralType.NOT_ADDRESSABLE) {
- /*
- * Even if type is UNKNOWN, from perspective of BindingStructuralType
- * we try to load codec for it. We will use that type to further specify
- * debug log.
- */
- try {
- final BindingCodecTreeNode<?> childCodec =
- parentCodec.yangPathArgumentChild(domChildNode.getIdentifier());
- populateList(result,type, childCodec, domChildNode);
- } catch (final IllegalArgumentException e) {
- if (type == BindingStructuralType.UNKNOWN) {
- LOG.debug("Unable to deserialize unknown DOM node {}",domChildNode,e);
- } else {
- LOG.debug("Binding representation for DOM node {} was not found",domChildNode,e);
- }
- }
- }
- }
- }
-
- private static void populateList(final List<DataObjectModification<? extends DataObject>> result,
- final BindingStructuralType type, final BindingCodecTreeNode<?> childCodec,
- final DataTreeCandidateNode domChildNode) {
- switch (type) {
- case INVISIBLE_LIST:
- // We use parent codec intentionally.
- populateListWithSingleCodec(result, childCodec, domChildNode.getChildNodes());
- break;
- case INVISIBLE_CONTAINER:
- populateList(result, childCodec, domChildNode.getChildNodes());
- break;
- case UNKNOWN:
- case VISIBLE_CONTAINER:
- result.add(create(childCodec, domChildNode));
- break;
- default:
- }
- }
-
- private static void populateListWithSingleCodec(final List<DataObjectModification<? extends DataObject>> result,
- final BindingCodecTreeNode<?> codec, final Collection<DataTreeCandidateNode> childNodes) {
- for (final DataTreeCandidateNode child : childNodes) {
- result.add(create(codec, child));
- }
+final class LazyDataObjectModification<T extends DataObject>
+ extends AbstractDataObjectModification<T, BindingDataObjectCodecTreeNode<T>> {
+ LazyDataObjectModification(final BindingDataObjectCodecTreeNode<T> codec, final DataTreeCandidateNode domData) {
+ super(domData, codec, (ExactDataObjectStep<T>) codec.deserializePathArgument(domData.name()));
}
@Override
- public T getDataBefore() {
- return deserialize(domData.getDataBefore());
+ Collection<DataTreeCandidateNode> domChildNodes() {
+ return domData.childNodes();
}
@Override
- public T getDataAfter() {
- return deserialize(domData.getDataAfter());
+ org.opendaylight.yangtools.yang.data.tree.api.ModificationType domModificationType() {
+ return domData.modificationType();
}
@Override
- public Class<T> getDataType() {
- return codec.getBindingClass();
+ T deserialize(final NormalizedNode normalized) {
+ return codec.deserialize(normalized);
}
@Override
- public PathArgument getIdentifier() {
- return identifier;
+ DataTreeCandidateNode firstModifiedChild(final PathArgument arg) {
+ return domData.modifiedChild(arg);
}
@Override
- public ModificationType getModificationType() {
- ModificationType localType = modificationType;
- if (localType != null) {
- return localType;
- }
-
- switch (domData.getModificationType()) {
- case APPEARED:
- case WRITE:
- localType = ModificationType.WRITE;
- break;
- case DISAPPEARED:
- case DELETE:
- localType = ModificationType.DELETE;
- break;
- case SUBTREE_MODIFIED:
- localType = resolveSubtreeModificationType();
- break;
- default:
- // TODO: Should we lie about modification type instead of exception?
- throw new IllegalStateException("Unsupported DOM Modification type " + domData.getModificationType());
- }
-
- modificationType = localType;
- return localType;
- }
-
- private ModificationType resolveSubtreeModificationType() {
- switch (codec.getChildAddressabilitySummary()) {
- case ADDRESSABLE:
- // All children are addressable, it is safe to report SUBTREE_MODIFIED
- return ModificationType.SUBTREE_MODIFIED;
- case UNADDRESSABLE:
- // All children are non-addressable, report WRITE
- return ModificationType.WRITE;
- case MIXED:
- // This case is not completely trivial, as we may have NOT_ADDRESSABLE nodes underneath us. If that
- // is the case, we need to turn this modification into a WRITE operation, so that the user is able
- // to observe those nodes being introduced. This is not efficient, but unfortunately unavoidable,
- // as we cannot accurately represent such changes.
- for (DataTreeCandidateNode child : domData.getChildNodes()) {
- if (BindingStructuralType.recursiveFrom(child) == BindingStructuralType.NOT_ADDRESSABLE) {
- // We have a non-addressable child, turn this modification into a write
- return ModificationType.WRITE;
- }
- }
-
- // No unaddressable children found, proceed in addressed mode
- return ModificationType.SUBTREE_MODIFIED;
- default:
- throw new IllegalStateException("Unsupported child addressability summary "
- + codec.getChildAddressabilitySummary());
- }
- }
-
- @Override
- public Collection<DataObjectModification<? extends DataObject>> getModifiedChildren() {
- Collection<DataObjectModification<? extends DataObject>> local = childNodesCache;
- if (local == null) {
- childNodesCache = local = from(codec, domData.getChildNodes());
- }
- return local;
- }
-
- @SuppressWarnings("unchecked")
- @Override
- public <C extends ChildOf<? super T>> Collection<DataObjectModification<C>>
- getModifiedChildren(final Class<C> childType) {
- List<DataObjectModification<C>> children = new ArrayList<>();
- for (DataObjectModification<? extends DataObject> potential : getModifiedChildren()) {
- if (childType.isAssignableFrom(potential.getDataType())) {
- children.add((DataObjectModification<C>) potential);
- }
- }
- return children;
- }
-
- @Override
- public DataObjectModification<? extends DataObject> getModifiedChild(final PathArgument arg) {
- final List<YangInstanceIdentifier.PathArgument> domArgumentList = new ArrayList<>();
- final BindingCodecTreeNode<?> childCodec = codec.bindingPathArgumentChild(arg, domArgumentList);
- final Iterator<YangInstanceIdentifier.PathArgument> toEnter = domArgumentList.iterator();
- DataTreeCandidateNode current = domData;
- while (toEnter.hasNext() && current != null) {
- current = current.getModifiedChild(toEnter.next());
- }
- if (current != null) {
- return create(childCodec, current);
- }
- return null;
- }
-
- @Override
- @SuppressWarnings("unchecked")
- public <C extends Identifiable<K> & ChildOf<? super T>, K extends Identifier<C>> DataObjectModification<C>
- getModifiedChildListItem(final Class<C> listItem, final K listKey) {
- return (DataObjectModification<C>) getModifiedChild(new InstanceIdentifier.IdentifiableItem<>(
- listItem, listKey));
- }
-
- @Override
- @SuppressWarnings("unchecked")
- public <C extends ChildOf<? super T>> DataObjectModification<C> getModifiedChildContainer(final Class<C> arg) {
- return (DataObjectModification<C>) getModifiedChild(new InstanceIdentifier.Item<>(arg));
- }
-
- @Override
- @SuppressWarnings("unchecked")
- public <C extends Augmentation<T> & DataObject> DataObjectModification<C> getModifiedAugmentation(
- final Class<C> augmentation) {
- return (DataObjectModification<C>) getModifiedChild(new InstanceIdentifier.Item<>(augmentation));
- }
-
- private T deserialize(final Optional<NormalizedNode<?, ?>> dataAfter) {
- if (dataAfter.isPresent()) {
- return codec.deserialize(dataAfter.get());
- }
- return null;
+ ToStringHelper addToStringAttributes(final ToStringHelper helper) {
+ return super.addToStringAttributes(helper).add("domData", domData);
}
}
Code Review / mdsal.git / blobdiff