* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
-
package org.opendaylight.controller.cluster.datastore.node.utils.transformer;
-import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Optional;
-import com.google.common.base.Preconditions;
-import java.io.IOException;
+import static com.google.common.base.Preconditions.checkState;
+
import java.net.URI;
-import java.util.LinkedList;
-import java.util.List;
+import java.util.ArrayDeque;
+import java.util.Deque;
+import java.util.NoSuchElementException;
import javax.xml.transform.dom.DOMSource;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithValue;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
import org.opendaylight.yangtools.yang.data.api.schema.AnyXmlNode;
import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
/**
* The NormalizedNodePruner removes all nodes from the input NormalizedNode that do not have a corresponding
- * schema element in the passed in SchemaContext
- *
+ * schema element in the passed in SchemaContext.
*/
public class NormalizedNodePruner implements NormalizedNodeStreamWriter {
private static final Logger LOG = LoggerFactory.getLogger(NormalizedNodePruner.class);
public static final URI BASE_NAMESPACE = URI.create("urn:ietf:params:xml:ns:netconf:base:1.0");
- private final SimpleStack<NormalizedNodeBuilderWrapper> stack = new SimpleStack<>();
- private NormalizedNode<?,?> normalizedNode;
+
+ private final Deque<NormalizedNodeBuilderWrapper> stack = new ArrayDeque<>();
private final DataSchemaContextNode<?> nodePathSchemaNode;
+
+ private NormalizedNode<?, ?> normalizedNode;
private boolean sealed = false;
- public NormalizedNodePruner(YangInstanceIdentifier nodePath, SchemaContext schemaContext) {
+ public NormalizedNodePruner(final YangInstanceIdentifier nodePath, final SchemaContext schemaContext) {
nodePathSchemaNode = findSchemaNodeForNodePath(nodePath, schemaContext);
}
@SuppressWarnings("unchecked")
@Override
- public void leafNode(YangInstanceIdentifier.NodeIdentifier nodeIdentifier, Object o) throws IOException, IllegalArgumentException {
-
+ public void leafNode(final NodeIdentifier nodeIdentifier, final Object value) {
checkNotSealed();
NormalizedNodeBuilderWrapper parent = stack.peek();
- LeafNode<Object> leafNode = Builders.leafBuilder().withNodeIdentifier(nodeIdentifier).withValue(o).build();
- if(parent != null) {
- if(hasValidSchema(nodeIdentifier.getNodeType(), parent)) {
+ LeafNode<Object> leafNode = Builders.leafBuilder().withNodeIdentifier(nodeIdentifier).withValue(value).build();
+ if (parent != null) {
+ if (hasValidSchema(nodeIdentifier.getNodeType(), parent)) {
parent.builder().addChild(leafNode);
}
} else {
// If there's no parent node then this is a stand alone LeafNode.
- if(nodePathSchemaNode != null) {
+ if (nodePathSchemaNode != null) {
this.normalizedNode = leafNode;
}
}
@Override
- public void startLeafSet(YangInstanceIdentifier.NodeIdentifier nodeIdentifier, int i) throws IOException, IllegalArgumentException {
-
+ public void startLeafSet(final NodeIdentifier nodeIdentifier, final int count) {
checkNotSealed();
-
addBuilder(Builders.leafSetBuilder().withNodeIdentifier(nodeIdentifier), nodeIdentifier);
}
@Override
- public void startOrderedLeafSet(YangInstanceIdentifier.NodeIdentifier nodeIdentifier, int i) throws IOException, IllegalArgumentException {
-
+ public void startOrderedLeafSet(final NodeIdentifier nodeIdentifier, final int str) {
checkNotSealed();
-
addBuilder(Builders.orderedLeafSetBuilder().withNodeIdentifier(nodeIdentifier), nodeIdentifier);
}
- @SuppressWarnings({ "unchecked" })
+ @SuppressWarnings("unchecked")
@Override
- public void leafSetEntryNode(QName name, Object o) throws IOException, IllegalArgumentException {
+ public void leafSetEntryNode(final QName name, final Object value) {
checkNotSealed();
NormalizedNodeBuilderWrapper parent = stack.peek();
- if(parent != null) {
- if(hasValidSchema(name, parent)) {
- parent.builder().addChild(Builders.leafSetEntryBuilder().withValue(o).withNodeIdentifier(
- new YangInstanceIdentifier.NodeWithValue<>(parent.nodeType(), o)).build());
+ if (parent != null) {
+ if (hasValidSchema(name, parent)) {
+ parent.builder().addChild(Builders.leafSetEntryBuilder().withValue(value)
+ .withNodeIdentifier(new NodeWithValue<>(parent.nodeType(), value))
+ .build());
}
} else {
- // If there's no parent LeafSetNode then this is a stand alone LeafSetEntryNode.
- if(nodePathSchemaNode != null) {
- this.normalizedNode = Builders.leafSetEntryBuilder().withValue(o).withNodeIdentifier(
- new YangInstanceIdentifier.NodeWithValue<>(name, o)).build();
+ // If there's no parent LeafSetNode then this is a stand alone
+ // LeafSetEntryNode.
+ if (nodePathSchemaNode != null) {
+ this.normalizedNode = Builders.leafSetEntryBuilder().withValue(value).withNodeIdentifier(
+ new NodeWithValue<>(name, value)).build();
}
sealed = true;
}
@Override
- public void startContainerNode(YangInstanceIdentifier.NodeIdentifier nodeIdentifier, int i) throws IOException, IllegalArgumentException {
-
+ public void startContainerNode(final NodeIdentifier nodeIdentifier, final int count) {
checkNotSealed();
-
addBuilder(Builders.containerBuilder().withNodeIdentifier(nodeIdentifier), nodeIdentifier);
}
@Override
- public void startYangModeledAnyXmlNode(YangInstanceIdentifier.NodeIdentifier nodeIdentifier, int i) throws IOException, IllegalArgumentException {
+ public void startYangModeledAnyXmlNode(final NodeIdentifier nodeIdentifier, final int count) {
throw new UnsupportedOperationException("Not implemented yet");
}
@Override
- public void startUnkeyedList(YangInstanceIdentifier.NodeIdentifier nodeIdentifier, int i) throws IOException, IllegalArgumentException {
-
+ public void startUnkeyedList(final NodeIdentifier nodeIdentifier, final int count) {
checkNotSealed();
-
addBuilder(Builders.unkeyedListBuilder().withNodeIdentifier(nodeIdentifier), nodeIdentifier);
}
@Override
- public void startUnkeyedListItem(YangInstanceIdentifier.NodeIdentifier nodeIdentifier, int i) throws IOException, IllegalStateException {
-
+ public void startUnkeyedListItem(final NodeIdentifier nodeIdentifier, final int count) {
checkNotSealed();
-
addBuilder(Builders.unkeyedListEntryBuilder().withNodeIdentifier(nodeIdentifier), nodeIdentifier);
}
@Override
- public void startMapNode(YangInstanceIdentifier.NodeIdentifier nodeIdentifier, int i) throws IOException, IllegalArgumentException {
-
+ public void startMapNode(final NodeIdentifier nodeIdentifier, final int count) {
checkNotSealed();
-
addBuilder(Builders.mapBuilder().withNodeIdentifier(nodeIdentifier), nodeIdentifier);
}
@Override
- public void startMapEntryNode(YangInstanceIdentifier.NodeIdentifierWithPredicates nodeIdentifierWithPredicates, int i) throws IOException, IllegalArgumentException {
-
+ public void startMapEntryNode(final NodeIdentifierWithPredicates nodeIdentifierWithPredicates, final int count) {
checkNotSealed();
-
- addBuilder(Builders.mapEntryBuilder().withNodeIdentifier(nodeIdentifierWithPredicates), nodeIdentifierWithPredicates);
+ addBuilder(Builders.mapEntryBuilder().withNodeIdentifier(nodeIdentifierWithPredicates),
+ nodeIdentifierWithPredicates);
}
@Override
- public void startOrderedMapNode(YangInstanceIdentifier.NodeIdentifier nodeIdentifier, int i) throws IOException, IllegalArgumentException {
-
+ public void startOrderedMapNode(final NodeIdentifier nodeIdentifier, final int count) {
checkNotSealed();
-
addBuilder(Builders.orderedMapBuilder().withNodeIdentifier(nodeIdentifier), nodeIdentifier);
}
@Override
- public void startChoiceNode(YangInstanceIdentifier.NodeIdentifier nodeIdentifier, int i) throws IOException, IllegalArgumentException {
-
+ public void startChoiceNode(final NodeIdentifier nodeIdentifier, final int count) {
checkNotSealed();
-
addBuilder(Builders.choiceBuilder().withNodeIdentifier(nodeIdentifier), nodeIdentifier);
}
@Override
- public void startAugmentationNode(YangInstanceIdentifier.AugmentationIdentifier augmentationIdentifier) throws IOException, IllegalArgumentException {
-
+ public void startAugmentationNode(final AugmentationIdentifier augmentationIdentifier) {
checkNotSealed();
-
addBuilder(Builders.augmentationBuilder().withNodeIdentifier(augmentationIdentifier), augmentationIdentifier);
}
@SuppressWarnings("unchecked")
@Override
- public void anyxmlNode(YangInstanceIdentifier.NodeIdentifier nodeIdentifier, Object o) throws IOException, IllegalArgumentException {
+ public void anyxmlNode(final NodeIdentifier nodeIdentifier, final Object value) {
checkNotSealed();
NormalizedNodeBuilderWrapper parent = stack.peek();
- AnyXmlNode anyXmlNode = Builders.anyXmlBuilder().withNodeIdentifier(nodeIdentifier).
- withValue((DOMSource) o).build();
- if(parent != null) {
- if(hasValidSchema(nodeIdentifier.getNodeType(), parent)) {
+ AnyXmlNode anyXmlNode = Builders.anyXmlBuilder().withNodeIdentifier(nodeIdentifier).withValue((DOMSource) value)
+ .build();
+ if (parent != null) {
+ if (hasValidSchema(nodeIdentifier.getNodeType(), parent)) {
parent.builder().addChild(anyXmlNode);
}
} else {
// If there's no parent node then this is a stand alone AnyXmlNode.
- if(nodePathSchemaNode != null) {
+ if (nodePathSchemaNode != null) {
this.normalizedNode = anyXmlNode;
}
}
}
+ @SuppressWarnings("unchecked")
@Override
- public void endNode() throws IOException, IllegalStateException {
-
+ public void endNode() {
checkNotSealed();
- NormalizedNodeBuilderWrapper child = stack.pop();
-
- Preconditions.checkState(child != null, "endNode called on an empty stack");
+ final NormalizedNodeBuilderWrapper child;
+ try {
+ child = stack.pop();
+ } catch (NoSuchElementException e) {
+ throw new IllegalStateException("endNode called on an empty stack", e);
+ }
- if(!child.getSchema().isPresent()) {
+ if (child.getSchema() == null) {
LOG.debug("Schema not found for {}", child.identifier());
return;
}
- NormalizedNode<?,?> normalizedNode = child.builder().build();
-
- if(stack.size() > 0) {
+ NormalizedNode<?, ?> newNode = child.builder().build();
+ if (stack.size() > 0) {
NormalizedNodeBuilderWrapper parent = stack.peek();
- parent.builder().addChild(normalizedNode);
+ parent.builder().addChild(newNode);
} else {
- this.normalizedNode = normalizedNode;
+ this.normalizedNode = newNode;
sealed = true;
}
}
@Override
- public void close() throws IOException {
+ public void close() {
sealed = true;
}
@Override
- public void flush() throws IOException {
-
+ public void flush() {
+ // No-op
}
- public NormalizedNode<?,?> normalizedNode(){
+ public NormalizedNode<?, ?> normalizedNode() {
return normalizedNode;
}
- private void checkNotSealed(){
- Preconditions.checkState(!sealed, "Pruner can be used only once");
+ private void checkNotSealed() {
+ checkState(!sealed, "Pruner can be used only once");
}
- private static boolean hasValidSchema(QName name, NormalizedNodeBuilderWrapper parent) {
- boolean valid = parent.getSchema().isPresent() && parent.getSchema().get().getChild(name) != null;
- if(!valid) {
+ private static boolean hasValidSchema(final QName name, final NormalizedNodeBuilderWrapper parent) {
+ final DataSchemaContextNode<?> parentSchema = parent.getSchema();
+ final boolean valid = parentSchema != null && parentSchema.getChild(name) != null;
+ if (!valid) {
LOG.debug("Schema not found for {}", name);
}
return valid;
}
- private NormalizedNodeBuilderWrapper addBuilder(NormalizedNodeContainerBuilder<?,?,?,?> builder,
- PathArgument identifier){
- final Optional<DataSchemaContextNode<?>> schemaNode;
- NormalizedNodeBuilderWrapper parent = stack.peek();
- if(parent == null) {
- schemaNode = Optional.fromNullable(nodePathSchemaNode);
- } else if(parent.getSchema().isPresent()) {
- schemaNode = Optional.fromNullable(parent.getSchema().get().getChild(identifier));
+ private NormalizedNodeBuilderWrapper addBuilder(final NormalizedNodeContainerBuilder<?, ?, ?, ?> builder,
+ final PathArgument identifier) {
+ final DataSchemaContextNode<?> schemaNode;
+ final NormalizedNodeBuilderWrapper parent = stack.peek();
+ if (parent != null) {
+ final DataSchemaContextNode<?> parentSchema = parent.getSchema();
+ schemaNode = parentSchema == null ? null : parentSchema.getChild(identifier);
} else {
- schemaNode = Optional.absent();
+ schemaNode = nodePathSchemaNode;
}
NormalizedNodeBuilderWrapper wrapper = new NormalizedNodeBuilderWrapper(builder, identifier, schemaNode);
return wrapper;
}
- private static DataSchemaContextNode<?> findSchemaNodeForNodePath(YangInstanceIdentifier nodePath,
- SchemaContext schemaContext) {
+ private static DataSchemaContextNode<?> findSchemaNodeForNodePath(final YangInstanceIdentifier nodePath,
+ final SchemaContext schemaContext) {
DataSchemaContextNode<?> schemaNode = DataSchemaContextTree.from(schemaContext).getRoot();
- for(PathArgument arg : nodePath.getPathArguments()) {
+ for (PathArgument arg : nodePath.getPathArguments()) {
schemaNode = schemaNode.getChild(arg);
- if(schemaNode == null) {
+ if (schemaNode == null) {
break;
}
}
return schemaNode;
}
-
- @VisibleForTesting
- static class SimpleStack<E> {
- List<E> stack = new LinkedList<>();
-
- void push(E element){
- stack.add(element);
- }
-
- E pop(){
- if(size() == 0){
- return null;
- }
- return stack.remove(stack.size() - 1);
- }
-
- E peek(){
- if(size() == 0){
- return null;
- }
-
- return stack.get(stack.size() - 1);
- }
-
- int size(){
- return stack.size();
- }
- }
}