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.Optional;
11 import com.google.common.base.Preconditions;
12 import com.google.common.collect.ImmutableCollection.Builder;
13 import com.google.common.collect.ImmutableList;
14 import java.util.Collection;
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.TreeType;
21 import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.TreeNode;
22 import org.opendaylight.yangtools.yang.model.api.ConstraintDefinition;
23 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
24 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
25 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
26 import org.slf4j.Logger;
27 import org.slf4j.LoggerFactory;
29 // TODO: would making this Serializable be useful (for Functions and similar?)
30 abstract class MandatoryLeafEnforcer implements Immutable {
31 private static final class NoOp extends MandatoryLeafEnforcer {
33 protected void enforceOnTreeNode(final TreeNode tree) {
38 protected void enforceOnTreeNode(final NormalizedNode<?, ?> normalizedNode) {
42 private static final class Strict extends MandatoryLeafEnforcer {
43 private final Collection<YangInstanceIdentifier> mandatoryNodes;
45 private Strict(final Collection<YangInstanceIdentifier> mandatoryNodes) {
46 this.mandatoryNodes = Preconditions.checkNotNull(mandatoryNodes);
50 protected void enforceOnTreeNode(final TreeNode tree) {
51 enforceOnTreeNode(tree.getData());
55 protected void enforceOnTreeNode(final NormalizedNode<?, ?> data) {
56 for (YangInstanceIdentifier id : mandatoryNodes) {
57 final Optional<NormalizedNode<?, ?>> descandant = NormalizedNodes.findNode(data, id);
58 Preconditions.checkArgument(descandant.isPresent(), "Node %s is missing mandatory descendant %s",
59 data.getIdentifier(), id);
64 private static final Logger LOG = LoggerFactory.getLogger(MandatoryLeafEnforcer.class);
65 private static final MandatoryLeafEnforcer NOOP_ENFORCER = new NoOp();
67 protected abstract void enforceOnTreeNode(final TreeNode tree);
69 protected abstract void enforceOnTreeNode(final NormalizedNode<?, ?> normalizedNode);
71 private static void findMandatoryNodes(final Builder<YangInstanceIdentifier> builder,
72 final YangInstanceIdentifier id, final DataNodeContainer schema, final TreeType type) {
73 for (DataSchemaNode child : schema.getChildNodes()) {
74 if (SchemaAwareApplyOperation.belongsToTree(type, child)) {
75 if (child instanceof ContainerSchemaNode) {
76 final ContainerSchemaNode container = (ContainerSchemaNode) child;
77 if (!container.isPresenceContainer()) {
78 findMandatoryNodes(builder, id.node(NodeIdentifier.create(child.getQName())), container, type);
81 final ConstraintDefinition constraints = child.getConstraints();
82 final Integer minElements = constraints.getMinElements();
83 if (constraints.isMandatory() || (minElements != null && minElements > 0)) {
84 final YangInstanceIdentifier childId = id.node(NodeIdentifier.create(child.getQName()));
85 LOG.debug("Adding mandatory child {}", childId);
86 builder.add(childId.toOptimized());
93 static MandatoryLeafEnforcer forContainer(final DataNodeContainer schema, final TreeType type) {
96 final Builder<YangInstanceIdentifier> builder = ImmutableList.builder();
97 findMandatoryNodes(builder, YangInstanceIdentifier.EMPTY, schema, type);
98 final Collection<YangInstanceIdentifier> mandatoryNodes = builder.build();
99 return mandatoryNodes.isEmpty() ? NOOP_ENFORCER : new Strict(mandatoryNodes);
101 return NOOP_ENFORCER;
103 throw new UnsupportedOperationException(String.format("Not supported tree type %s", type));