2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.yangtools.yang.data.impl.schema.tree;
10 import com.google.common.base.Preconditions;
11 import com.google.common.collect.ImmutableCollection.Builder;
12 import com.google.common.collect.ImmutableList;
13 import java.util.Collection;
14 import java.util.Optional;
15 import org.opendaylight.yangtools.concepts.Immutable;
16 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
17 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
18 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
19 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodes;
20 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeConfiguration;
21 import org.opendaylight.yangtools.yang.data.api.schema.tree.TreeType;
22 import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.TreeNode;
23 import org.opendaylight.yangtools.yang.model.api.ConstraintDefinition;
24 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
25 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
26 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
30 // TODO: would making this Serializable be useful (for Functions and similar?)
31 abstract class MandatoryLeafEnforcer implements Immutable {
32 private static final class Strict extends MandatoryLeafEnforcer {
33 private final Collection<YangInstanceIdentifier> mandatoryNodes;
35 Strict(final Collection<YangInstanceIdentifier> mandatoryNodes) {
36 this.mandatoryNodes = Preconditions.checkNotNull(mandatoryNodes);
40 void enforceOnData(final NormalizedNode<?, ?> data) {
41 for (final YangInstanceIdentifier id : mandatoryNodes) {
42 final Optional<NormalizedNode<?, ?>> descandant = NormalizedNodes.findNode(data, id);
43 Preconditions.checkArgument(descandant.isPresent(), "Node %s is missing mandatory descendant %s",
44 data.getIdentifier(), id);
49 private static final Logger LOG = LoggerFactory.getLogger(MandatoryLeafEnforcer.class);
50 private static final MandatoryLeafEnforcer NOOP_ENFORCER = new MandatoryLeafEnforcer() {
52 void enforceOnData(final NormalizedNode<?, ?> normalizedNode) {
57 final void enforceOnTreeNode(final TreeNode tree) {
58 enforceOnData(tree.getData());
61 abstract void enforceOnData(NormalizedNode<?, ?> normalizedNode);
63 private static void findMandatoryNodes(final Builder<YangInstanceIdentifier> builder,
64 final YangInstanceIdentifier id, final DataNodeContainer schema, final TreeType type) {
65 for (final DataSchemaNode child : schema.getChildNodes()) {
66 if (SchemaAwareApplyOperation.belongsToTree(type, child)) {
67 if (child instanceof ContainerSchemaNode) {
68 final ContainerSchemaNode container = (ContainerSchemaNode) child;
69 if (!container.isPresenceContainer()) {
70 findMandatoryNodes(builder, id.node(NodeIdentifier.create(child.getQName())), container, type);
73 final ConstraintDefinition constraints = child.getConstraints();
74 final Integer minElements = constraints.getMinElements();
75 if (constraints.isMandatory() || minElements != null && minElements.intValue() > 0) {
76 final YangInstanceIdentifier childId = id.node(NodeIdentifier.create(child.getQName()));
77 LOG.debug("Adding mandatory child {}", childId);
78 builder.add(childId.toOptimized());
85 static MandatoryLeafEnforcer forContainer(final DataNodeContainer schema, final DataTreeConfiguration treeConfig) {
86 if (!treeConfig.isMandatoryNodesValidationEnabled()) {
90 final Builder<YangInstanceIdentifier> builder = ImmutableList.builder();
91 findMandatoryNodes(builder, YangInstanceIdentifier.EMPTY, schema, treeConfig.getTreeType());
92 final Collection<YangInstanceIdentifier> mandatoryNodes = builder.build();
93 return mandatoryNodes.isEmpty() ? NOOP_ENFORCER : new Strict(mandatoryNodes);