/*
* Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* 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.yangtools.yang.data.impl.schema;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.data.api.ModifyAction;
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.AugmentationNode;
import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.opendaylight.yangtools.yang.data.api.schema.OrderedMapNode;
import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.AttributesBuilder;
import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.CollectionNodeBuilder;
import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeAttrBuilder;
import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder;
import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.ListNodeBuilder;
import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeContainerBuilder;
import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
import org.opendaylight.yangtools.yang.model.api.ChoiceCaseNode;
import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
import org.opendaylight.yangtools.yang.model.util.EffectiveAugmentationSchema;
/**
* Base strategy for converting an instance identifier into a normalized node structure for container-like types.
*/
abstract class InstanceIdToCompositeNodes<T extends PathArgument> extends InstanceIdToNodes<T> {
protected InstanceIdToCompositeNodes(final T identifier) {
super(identifier);
}
private static AugmentationIdentifier augmentationIdentifierFrom(final AugmentationSchema augmentation) {
final ImmutableSet.Builder<QName> potentialChildren = ImmutableSet.builder();
for (final DataSchemaNode child : augmentation.getChildNodes()) {
potentialChildren.add(child.getQName());
}
return new AugmentationIdentifier(potentialChildren.build());
}
private static DataNodeContainer augmentationProxy(final AugmentationSchema augmentation, final DataNodeContainer schema) {
final Set<DataSchemaNode> children = new HashSet<>();
for (final DataSchemaNode augNode : augmentation.getChildNodes()) {
children.add(schema.getDataChildByName(augNode.getQName()));
}
return new EffectiveAugmentationSchema(augmentation, children);
}
@Override
@SuppressWarnings("unchecked")
public final NormalizedNode<?, ?> create(final YangInstanceIdentifier instanceId, final Optional<NormalizedNode<?, ?>> lastChild, final Optional<Map.Entry<QName,ModifyAction>> operation) {
checkNotNull(instanceId);
final Iterator<PathArgument> iterator = instanceId.getPathArguments().iterator();
final PathArgument legacyData = iterator.next();
if (!isMixin() && getIdentifier().getNodeType() != null) {
checkArgument(getIdentifier().getNodeType().equals(legacyData.getNodeType()),
"Node QName must be %s was %s", getIdentifier().getNodeType(), legacyData.getNodeType());
}
@SuppressWarnings("rawtypes")
final NormalizedNodeContainerBuilder builder = createBuilder(legacyData);
if (iterator.hasNext()) {
final PathArgument childPath = iterator.next();
final InstanceIdToNodes<?> childOp = getChildOperation(childPath);
final YangInstanceIdentifier childId = YangInstanceIdentifier.create(Iterables.skip(instanceId.getPathArguments(), 1));
builder.addChild(childOp.create(childId, lastChild, operation));
} else {
if (lastChild.isPresent()) {
builder.withValue(Lists.newArrayList((Collection<?>) lastChild.get().getValue()));
}
if (operation.isPresent()) {
Preconditions.checkArgument(builder instanceof AttributesBuilder<?>);
addModifyOpIfPresent(operation, ((AttributesBuilder<?>) builder));
}
}
return builder.build();
}
private InstanceIdToNodes<?> getChildOperation(final PathArgument childPath) {
final InstanceIdToNodes<?> childOp;
try {
childOp = getChild(childPath);
} catch (final RuntimeException e) {
throw new IllegalArgumentException(String.format("Failed to process child node %s", childPath), e);
}
checkArgument(childOp != null, "Node %s is not allowed inside %s", childPath, getIdentifier());
return childOp;
}
protected abstract NormalizedNodeContainerBuilder<?, ?, ?, ?> createBuilder(final PathArgument compositeNode);
static abstract class DataContainerNormalizationOperation<T extends PathArgument> extends
InstanceIdToCompositeNodes<T> {
private final DataNodeContainer schema;
private final Map<PathArgument, InstanceIdToNodes<?>> byArg;
protected DataContainerNormalizationOperation(final T identifier, final DataNodeContainer schema) {
super(identifier);
this.schema = schema;
this.byArg = new ConcurrentHashMap<>();
}
@Override
public InstanceIdToNodes<?> getChild(final PathArgument child) {
InstanceIdToNodes<?> potential = byArg.get(child);
if (potential != null) {
return potential;
}
potential = fromLocalSchema(child);
return register(potential);
}
private InstanceIdToNodes<?> fromLocalSchema(final PathArgument child) {
if (child instanceof AugmentationIdentifier) {
return fromSchemaAndQNameChecked(schema, ((AugmentationIdentifier) child).getPossibleChildNames()
.iterator().next());
}
return fromSchemaAndQNameChecked(schema, child.getNodeType());
}
private InstanceIdToNodes<?> register(final InstanceIdToNodes<?> potential) {
if (potential != null) {
byArg.put(potential.getIdentifier(), potential);
}
return potential;
}
}
static final class ListItemNormalization extends DataContainerNormalizationOperation<NodeIdentifierWithPredicates> {
protected ListItemNormalization(final NodeIdentifierWithPredicates identifier, final ListSchemaNode schema) {
super(identifier, schema);
}
@Override
protected DataContainerNodeAttrBuilder<NodeIdentifierWithPredicates, MapEntryNode> createBuilder(final PathArgument currentArg) {
final DataContainerNodeAttrBuilder<NodeIdentifierWithPredicates, MapEntryNode> builder = Builders
.mapEntryBuilder().withNodeIdentifier((NodeIdentifierWithPredicates) currentArg);
for (final Map.Entry<QName, Object> keyValue : ((NodeIdentifierWithPredicates) currentArg).getKeyValues().entrySet()) {
builder.addChild(Builders.leafBuilder()
.withNodeIdentifier(NodeIdentifier.create(keyValue.getKey())).withValue(keyValue.getValue())
.build());
}
return builder;
}
@Override
boolean isMixin() {
return false;
}
}
static final class UnkeyedListItemNormalization extends DataContainerNormalizationOperation<NodeIdentifier> {
protected UnkeyedListItemNormalization(final ListSchemaNode schema) {
super(NodeIdentifier.create(schema.getQName()), schema);
}
@Override
protected DataContainerNodeAttrBuilder<NodeIdentifier, UnkeyedListEntryNode> createBuilder(final PathArgument compositeNode) {
return Builders.unkeyedListEntryBuilder().withNodeIdentifier(getIdentifier());
}
@Override
boolean isMixin() {
return false;
}
}
static final class ContainerTransformation extends DataContainerNormalizationOperation<NodeIdentifier> {
protected ContainerTransformation(final ContainerSchemaNode schema) {
super(NodeIdentifier.create(schema.getQName()), schema);
}
@Override
protected DataContainerNodeAttrBuilder<NodeIdentifier, ContainerNode> createBuilder(final PathArgument compositeNode) {
return Builders.containerBuilder().withNodeIdentifier(getIdentifier());
}
@Override
boolean isMixin() {
return false;
}
}
static final class OrderedLeafListMixinNormalization extends UnorderedLeafListMixinNormalization {
public OrderedLeafListMixinNormalization(final LeafListSchemaNode potential) {
super(potential);
}
@Override
protected ListNodeBuilder<?, ?> createBuilder(final PathArgument compositeNode) {
return Builders.orderedLeafSetBuilder().withNodeIdentifier(getIdentifier());
}
}
static class UnorderedLeafListMixinNormalization extends InstanceIdToCompositeNodes<NodeIdentifier> {
private final InstanceIdToNodes<?> innerOp;
public UnorderedLeafListMixinNormalization(final LeafListSchemaNode potential) {
super(NodeIdentifier.create(potential.getQName()));
innerOp = new InstanceIdToSimpleNodes.LeafListEntryNormalization(potential);
}
@Override
protected ListNodeBuilder<?, ?> createBuilder(final PathArgument compositeNode) {
return Builders.leafSetBuilder().withNodeIdentifier(getIdentifier());
}
@Override
public InstanceIdToNodes<?> getChild(final PathArgument child) {
if (child instanceof NodeWithValue) {
return innerOp;
}
return null;
}
@Override
boolean isMixin() {
return true;
}
}
static final class AugmentationNormalization extends DataContainerNormalizationOperation<AugmentationIdentifier> {
public AugmentationNormalization(final AugmentationSchema augmentation, final DataNodeContainer schema) {
super(augmentationIdentifierFrom(augmentation), augmentationProxy(augmentation, schema));
}
@Override
protected DataContainerNodeBuilder<AugmentationIdentifier, AugmentationNode> createBuilder(final PathArgument compositeNode) {
return Builders.augmentationBuilder().withNodeIdentifier(getIdentifier());
}
@Override
boolean isMixin() {
return true;
}
}
static class UnorderedMapMixinNormalization extends InstanceIdToCompositeNodes<NodeIdentifier> {
private final ListItemNormalization innerNode;
public UnorderedMapMixinNormalization(final ListSchemaNode list) {
super(NodeIdentifier.create(list.getQName()));
this.innerNode = new ListItemNormalization(new NodeIdentifierWithPredicates(list.getQName(),
Collections.emptyMap()), list);
}
@Override
protected CollectionNodeBuilder<MapEntryNode, ? extends MapNode> createBuilder(final PathArgument compositeNode) {
return Builders.mapBuilder().withNodeIdentifier(getIdentifier());
}
@Override
public InstanceIdToNodes<?> getChild(final PathArgument child) {
if (child.getNodeType().equals(getIdentifier().getNodeType())) {
return innerNode;
}
return null;
}
@Override
boolean isMixin() {
return true;
}
}
static final class OrderedMapMixinNormalization extends UnorderedMapMixinNormalization {
public OrderedMapMixinNormalization(final ListSchemaNode list) {
super(list);
}
@Override
protected CollectionNodeBuilder<MapEntryNode, OrderedMapNode> createBuilder(final PathArgument compositeNode) {
return Builders.orderedMapBuilder().withNodeIdentifier(getIdentifier());
}
}
static final class ChoiceNodeNormalization extends InstanceIdToCompositeNodes<NodeIdentifier> {
private final ImmutableMap<PathArgument, InstanceIdToNodes<?>> byArg;
protected ChoiceNodeNormalization(final ChoiceSchemaNode schema) {
super(NodeIdentifier.create(schema.getQName()));
final ImmutableMap.Builder<PathArgument, InstanceIdToNodes<?>> byArgBuilder = ImmutableMap.builder();
for (final ChoiceCaseNode caze : schema.getCases()) {
for (final DataSchemaNode cazeChild : caze.getChildNodes()) {
final InstanceIdToNodes<?> childOp = fromDataSchemaNode(cazeChild);
byArgBuilder.put(childOp.getIdentifier(), childOp);
}
}
byArg = byArgBuilder.build();
}
@Override
public InstanceIdToNodes<?> getChild(final PathArgument child) {
return byArg.get(child);
}
@Override
protected DataContainerNodeBuilder<NodeIdentifier, ChoiceNode> createBuilder(final PathArgument compositeNode) {
return Builders.choiceBuilder().withNodeIdentifier(getIdentifier());
}
@Override
boolean isMixin() {
return true;
}
}
}