import com.google.common.base.Verify;
import com.google.common.collect.Collections2;
import java.util.Collection;
-import javax.annotation.Nonnull;
+import java.util.Collections;
import javax.annotation.Nullable;
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.NormalizedNodeContainer;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidateNode;
import org.opendaylight.yangtools.yang.data.api.schema.tree.ModificationType;
import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.TreeNode;
-
abstract class AbstractModifiedNodeBasedCandidateNode implements DataTreeCandidateNode {
+
+ private static final Function<NormalizedNode<?, ?>, DataTreeCandidateNode> TO_UNMODIFIED_NODE = new Function<NormalizedNode<?, ?>, DataTreeCandidateNode>() {
+ @Override
+ public DataTreeCandidateNode apply(final NormalizedNode<?, ?> input) {
+ return AbstractRecursiveCandidateNode.unmodifiedNode(input);
+ }
+ };
+
private final ModifiedNode mod;
private final TreeNode newMeta;
private final TreeNode oldMeta;
return oldMeta;
}
- private static final TreeNode childMeta(final TreeNode parent, final PathArgument id) {
+ private static TreeNode childMeta(final TreeNode parent, final PathArgument id) {
if (parent != null) {
return parent.getChild(id).orNull();
} else {
}
}
- private DataTreeCandidateNode childNode(final ModifiedNode input) {
- final PathArgument id = input.getIdentifier();
- return createChildNode(input, childMeta(oldMeta, id), childMeta(newMeta, id));
- }
-
- private static DataTreeCandidateNode createChildNode(@Nonnull final ModifiedNode input, @Nullable final TreeNode oldMeta, @Nullable final TreeNode newMeta) {
- if(oldMeta == null) {
- return RecursiveModificationCandidateNode.initialWriteNode(newMeta.getData());
+ private static boolean canHaveChildren(@Nullable final TreeNode oldMeta, @Nullable final TreeNode newMeta) {
+ if (oldMeta != null) {
+ return oldMeta.getData() instanceof NormalizedNodeContainer;
}
- if(newMeta == null) {
- return RecursiveModificationCandidateNode.deleteNode(oldMeta.getData());
+ if (newMeta != null) {
+ return newMeta.getData() instanceof NormalizedNodeContainer;
}
- return new ChildNode(input, oldMeta, newMeta);
+ return false;
+ }
+
+ @SuppressWarnings("unchecked")
+ private static NormalizedNodeContainer<?, PathArgument, NormalizedNode<?, ?>> getContainer(@Nullable final TreeNode meta) {
+ return (meta == null ? null : (NormalizedNodeContainer<?, PathArgument, NormalizedNode<?, ?>>)meta.getData());
+ }
+
+ private ChildNode childNode(final ModifiedNode childMod) {
+ final PathArgument id = childMod.getIdentifier();
+ return new ChildNode(childMod, childMeta(oldMeta, id), childMeta(newMeta, id));
}
@Override
public Collection<DataTreeCandidateNode> getChildNodes() {
- return Collections2.transform(mod.getChildren(), new Function<ModifiedNode, DataTreeCandidateNode>() {
- @Override
- public DataTreeCandidateNode apply(final ModifiedNode input) {
- return childNode(input);
+ switch (mod.getModificationType()) {
+ case APPEARED:
+ case DISAPPEARED:
+ case SUBTREE_MODIFIED:
+ return Collections2.transform(mod.getChildren(), new Function<ModifiedNode, DataTreeCandidateNode>() {
+ @Override
+ public DataTreeCandidateNode apply(final ModifiedNode input) {
+ return childNode(input);
+ }
+ });
+ case UNMODIFIED:
+ // Unmodified node, but we still need to resolve potential children. canHaveChildren returns
+ // false if both arguments are null.
+ if (canHaveChildren(oldMeta, newMeta)) {
+ return Collections2.transform(getContainer(newMeta != null ? newMeta : oldMeta).getValue(), TO_UNMODIFIED_NODE);
+ } else {
+ return Collections.emptyList();
+ }
+ case DELETE:
+ case WRITE:
+ // This is unusual, the user is requesting we follow into an otherwise-terminal node.
+ // We need to fudge things based on before/after data to correctly fake the expectations.
+ if (canHaveChildren(oldMeta, newMeta)) {
+ return AbstractDataTreeCandidateNode.deltaChildren(getContainer(oldMeta), getContainer(newMeta));
+ } else {
+ return Collections.emptyList();
}
- });
+ default:
+ throw new IllegalArgumentException("Unhandled modification type " + mod.getModificationType());
+ }
}
@Override
return Verify.verifyNotNull(mod.getModificationType(), "Node %s does not have resolved modification type", mod);
}
- private Optional<NormalizedNode<?, ?>> optionalData(final TreeNode meta) {
+ private static Optional<NormalizedNode<?, ?>> optionalData(final TreeNode meta) {
if (meta != null) {
return Optional.<NormalizedNode<?,?>>of(meta.getData());
} else {
}
@Override
- public Optional<NormalizedNode<?, ?>> getDataAfter() {
+ public final Optional<NormalizedNode<?, ?>> getDataAfter() {
return optionalData(newMeta);
}
@Override
- public Optional<NormalizedNode<?, ?>> getDataBefore() {
+ public final Optional<NormalizedNode<?, ?>> getDataBefore() {
return optionalData(oldMeta);
}
@Override
- public DataTreeCandidateNode getModifiedChild(final PathArgument identifier) {
- final Optional<ModifiedNode> childMod = mod.getChild(identifier);
- if (childMod.isPresent()) {
- return childNode(childMod.get());
+ public final DataTreeCandidateNode getModifiedChild(final PathArgument identifier) {
+ switch (mod.getModificationType()) {
+ case APPEARED:
+ case DISAPPEARED:
+ case SUBTREE_MODIFIED:
+ final Optional<ModifiedNode> childMod = mod.getChild(identifier);
+ if (childMod.isPresent()) {
+ return childNode(childMod.get());
+ }
+ return null;
+ case UNMODIFIED:
+ if (canHaveChildren(oldMeta, newMeta)) {
+ final Optional<NormalizedNode<?, ?>> maybeChild = getContainer(newMeta != null ? newMeta : oldMeta).getChild(identifier);
+ if (maybeChild.isPresent()) {
+ return TO_UNMODIFIED_NODE.apply(maybeChild.get());
+ } else {
+ return null;
+ }
+ } else {
+ return null;
+ }
+ case DELETE:
+ case WRITE:
+ if (canHaveChildren(oldMeta, newMeta)) {
+ return AbstractDataTreeCandidateNode.deltaChild(getContainer(oldMeta), getContainer(newMeta), identifier);
+ } else {
+ return null;
+ }
+ default:
+ throw new IllegalArgumentException("Unhandled modification type " + mod.getModificationType());
}
- return null;
}
- static final class ChildNode extends AbstractModifiedNodeBasedCandidateNode {
- public ChildNode(final ModifiedNode mod, final TreeNode oldMeta, final TreeNode newMeta) {
+ private static final class ChildNode extends AbstractModifiedNodeBasedCandidateNode {
+ ChildNode(final ModifiedNode mod, final TreeNode oldMeta, final TreeNode newMeta) {
super(mod, oldMeta, newMeta);
}
return getMod().getIdentifier();
}
}
-}
\ No newline at end of file
+
+ @Override
+ public String toString() {
+ return this.getClass().getSimpleName() + "{mod = " + this.mod + ", oldMeta = " + this.oldMeta + ", newMeta = " +
+ this.newMeta + "}";
+ }
+}
Code Review / yangtools.git / blobdiff