*/
package org.opendaylight.yangtools.yang.data.api.schema.tree;
+import static java.util.Objects.requireNonNull;
+
import com.google.common.annotations.Beta;
+import java.util.Iterator;
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.slf4j.Logger;
@Beta
public final class DataTreeCandidates {
private static final Logger LOG = LoggerFactory.getLogger(DataTreeCandidates.class);
+
private DataTreeCandidates() {
throw new UnsupportedOperationException();
}
- public static DataTreeCandidate newDataTreeCandidate(final YangInstanceIdentifier rootPath, final DataTreeCandidateNode rootNode) {
+ public static DataTreeCandidate newDataTreeCandidate(final YangInstanceIdentifier rootPath,
+ final DataTreeCandidateNode rootNode) {
return new DefaultDataTreeCandidate(rootPath, rootNode);
}
- public static DataTreeCandidate fromNormalizedNode(final YangInstanceIdentifier rootPath, final NormalizedNode<?, ?> node) {
+ public static DataTreeCandidate fromNormalizedNode(final YangInstanceIdentifier rootPath,
+ final NormalizedNode<?, ?> node) {
return new DefaultDataTreeCandidate(rootPath, new NormalizedNodeDataTreeCandidateNode(node));
}
- public static void applyToModification(final DataTreeModification modification, final DataTreeCandidate candidate) {
+ public static void applyToCursor(final DataTreeModificationCursor cursor, final DataTreeCandidate candidate) {
+ DataTreeCandidateNodes.applyToCursor(cursor, candidate.getRootNode());
+ }
+
+ public static void applyToModification(final DataTreeModification modification,
+ final DataTreeCandidate candidate) {
if (modification instanceof CursorAwareDataTreeModification) {
- try (DataTreeModificationCursor cursor = ((CursorAwareDataTreeModification) modification).createCursor(candidate.getRootPath())) {
- applyNode(cursor, candidate.getRootNode());
- }
- } else {
- applyNode(modification, candidate.getRootPath(), candidate.getRootNode());
+ applyToCursorAwareModification((CursorAwareDataTreeModification) modification, candidate);
+ return;
}
- }
- private static void applyNode(final DataTreeModification modification, final YangInstanceIdentifier path, final DataTreeCandidateNode node) {
+ final DataTreeCandidateNode node = candidate.getRootNode();
+ final YangInstanceIdentifier path = candidate.getRootPath();
switch (node.getModificationType()) {
- case DELETE:
- modification.delete(path);
- LOG.debug("Modification {} deleted path {}", modification, path);
- break;
- case SUBTREE_MODIFIED:
- LOG.debug("Modification {} modified path {}", modification, path);
- for (DataTreeCandidateNode child : node.getChildNodes()) {
- applyNode(modification, path.node(child.getIdentifier()), child);
+ case DELETE:
+ modification.delete(path);
+ LOG.debug("Modification {} deleted path {}", modification, path);
+ break;
+ case SUBTREE_MODIFIED:
+ LOG.debug("Modification {} modified path {}", modification, path);
+
+ NodeIterator iterator = new NodeIterator(null, path, node.getChildNodes().iterator());
+ do {
+ iterator = iterator.next(modification);
+ } while (iterator != null);
+ break;
+ case UNMODIFIED:
+ LOG.debug("Modification {} unmodified path {}", modification, path);
+ // No-op
+ break;
+ case WRITE:
+ modification.write(path, node.getDataAfter().get());
+ LOG.debug("Modification {} written path {}", modification, path);
+ break;
+ default:
+ throw new IllegalArgumentException("Unsupported modification " + node.getModificationType());
+ }
+ }
+
+ private static void applyToCursorAwareModification(final CursorAwareDataTreeModification modification,
+ final DataTreeCandidate candidate) {
+ final YangInstanceIdentifier candidatePath = candidate.getRootPath();
+ if (candidatePath.isEmpty()) {
+ try (DataTreeModificationCursor cursor = modification.openCursor()) {
+ DataTreeCandidateNodes.applyRootToCursor(cursor, candidate.getRootNode());
+ }
+ } else {
+ try (DataTreeModificationCursor cursor = modification.openCursor(candidatePath.getParent()).get()) {
+ DataTreeCandidateNodes.applyRootedNodeToCursor(cursor, candidatePath, candidate.getRootNode());
}
- break;
- case UNMODIFIED:
- LOG.debug("Modification {} unmodified path {}", modification, path);
- // No-op
- break;
- case WRITE:
- modification.write(path, node.getDataAfter().get());
- LOG.debug("Modification {} written path {}", modification, path);
- break;
- default:
- throw new IllegalArgumentException("Unsupported modification " + node.getModificationType());
}
}
- private static void applyNode(final DataTreeModificationCursor cursor, final DataTreeCandidateNode node) {
- switch (node.getModificationType()) {
- case DELETE:
- cursor.delete(node.getIdentifier());
- break;
- case SUBTREE_MODIFIED:
- cursor.enter(node.getIdentifier());
- for (DataTreeCandidateNode child : node.getChildNodes()) {
- applyNode(cursor, child);
+ private static final class NodeIterator {
+ private final Iterator<DataTreeCandidateNode> iterator;
+ private final YangInstanceIdentifier path;
+ private final NodeIterator parent;
+
+ NodeIterator(@Nullable final NodeIterator parent, @Nonnull final YangInstanceIdentifier path,
+ @Nonnull final Iterator<DataTreeCandidateNode> iterator) {
+ this.iterator = requireNonNull(iterator);
+ this.path = requireNonNull(path);
+ this.parent = parent;
+ }
+
+ NodeIterator next(final DataTreeModification modification) {
+ while (iterator.hasNext()) {
+ final DataTreeCandidateNode node = iterator.next();
+ final YangInstanceIdentifier child = path.node(node.getIdentifier());
+
+ switch (node.getModificationType()) {
+ case DELETE:
+ modification.delete(child);
+ LOG.debug("Modification {} deleted path {}", modification, child);
+ break;
+ case APPEARED:
+ case DISAPPEARED:
+ case SUBTREE_MODIFIED:
+ LOG.debug("Modification {} modified path {}", modification, child);
+ return new NodeIterator(this, child, node.getChildNodes().iterator());
+ case UNMODIFIED:
+ LOG.debug("Modification {} unmodified path {}", modification, child);
+ // No-op
+ break;
+ case WRITE:
+ modification.write(child, node.getDataAfter().get());
+ LOG.debug("Modification {} written path {}", modification, child);
+ break;
+ default:
+ throw new IllegalArgumentException("Unsupported modification " + node.getModificationType());
+ }
}
- cursor.exit();
- break;
- case UNMODIFIED:
- // No-op
- break;
- case WRITE:
- cursor.write(node.getIdentifier(), node.getDataAfter().get());
- break;
- default:
- throw new IllegalArgumentException("Unsupported modification " + node.getModificationType());
+
+ return parent;
}
}
}
Code Review / yangtools.git / blobdiff