2 * Copyright (c) 2018 Pantheon Technologies, s.r.o. 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.parser.rfc7950.stmt;
10 import com.google.common.annotations.Beta;
11 import com.google.common.collect.ImmutableMap;
12 import java.util.LinkedHashMap;
14 import java.util.Optional;
15 import org.opendaylight.yangtools.yang.common.QName;
16 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
17 import org.opendaylight.yangtools.yang.model.api.meta.IdentifierNamespace;
18 import org.opendaylight.yangtools.yang.model.api.stmt.CaseEffectiveStatement;
19 import org.opendaylight.yangtools.yang.model.api.stmt.ChoiceEffectiveStatement;
20 import org.opendaylight.yangtools.yang.model.api.stmt.DataTreeAwareEffectiveStatement;
21 import org.opendaylight.yangtools.yang.model.api.stmt.DataTreeEffectiveStatement;
22 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaTreeAwareEffectiveStatement;
23 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaTreeEffectiveStatement;
24 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
25 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
26 import org.opendaylight.yangtools.yang.parser.spi.source.StatementSourceReference;
29 * An {@link AbstractEffectiveDocumentedNode} which can optionally support {@link SchemaTreeAwareEffectiveStatement}.
31 * @param <A> Argument type ({@link Void} if statement does not have argument.)
32 * @param <D> Class representing declared version of this statement.
33 * @author Robert Varga
36 public abstract class AbstractSchemaEffectiveDocumentedNode<A, D extends DeclaredStatement<A>>
37 extends AbstractEffectiveDocumentedNode<A, D> {
38 private final ImmutableMap<QName, DataTreeEffectiveStatement<?>> dataTreeNamespace;
39 private final ImmutableMap<QName, SchemaTreeEffectiveStatement<?>> schemaTreeNamespace;
41 protected AbstractSchemaEffectiveDocumentedNode(final StmtContext<A, D, ?> ctx) {
44 if (this instanceof SchemaTreeAwareEffectiveStatement) {
45 final StatementSourceReference ref = ctx.getStatementSourceReference();
46 final Map<QName, SchemaTreeEffectiveStatement<?>> schemaChildren = new LinkedHashMap<>();
47 streamEffectiveSubstatements(SchemaTreeEffectiveStatement.class).forEach(child -> {
48 putChild(schemaChildren, child, ref, "schema");
50 schemaTreeNamespace = ImmutableMap.copyOf(schemaChildren);
52 if (this instanceof DataTreeAwareEffectiveStatement && !schemaTreeNamespace.isEmpty()) {
53 final Map<QName, DataTreeEffectiveStatement<?>> dataChildren = new LinkedHashMap<>();
54 boolean sameAsSchema = true;
56 for (SchemaTreeEffectiveStatement<?> child : schemaTreeNamespace.values()) {
57 if (child instanceof DataTreeEffectiveStatement) {
58 putChild(dataChildren, (DataTreeEffectiveStatement<?>) child, ref, "data");
61 putChoiceDataChildren(dataChildren, ref, child);
65 // This is a mighty hack to lower memory usage: if we consumed all schema tree children as data nodes,
66 // the two maps are equal and hence we can share the instance.
67 dataTreeNamespace = sameAsSchema ? (ImmutableMap) schemaTreeNamespace
68 : ImmutableMap.copyOf(dataChildren);
70 dataTreeNamespace = ImmutableMap.of();
73 dataTreeNamespace = ImmutableMap.of();
74 schemaTreeNamespace = ImmutableMap.of();
79 @SuppressWarnings("unchecked")
80 protected <K, V, N extends IdentifierNamespace<K, V>> Optional<? extends Map<K, V>> getNamespaceContents(
81 final Class<N> namespace) {
82 if (this instanceof SchemaTreeAwareEffectiveStatement
83 && SchemaTreeAwareEffectiveStatement.Namespace.class.equals(namespace)) {
84 return Optional.of((Map<K, V>) schemaTreeNamespace);
86 if (this instanceof DataTreeAwareEffectiveStatement
87 && DataTreeAwareEffectiveStatement.Namespace.class.equals(namespace)) {
88 return Optional.of((Map<K, V>) dataTreeNamespace);
90 return super.getNamespaceContents(namespace);
93 private static <T extends SchemaTreeEffectiveStatement<?>> void putChild(final Map<QName, T> map,
94 final T child, final StatementSourceReference ref, final String tree) {
95 final QName id = child.getIdentifier();
96 final T prev = map.putIfAbsent(id, child);
97 SourceException.throwIf(prev != null, ref,
98 "Cannot add %s tree child with name %s, a conflicting child already exists", tree, id);
101 private static void putChoiceDataChildren(final Map<QName, DataTreeEffectiveStatement<?>> map,
102 final StatementSourceReference ref, final SchemaTreeEffectiveStatement<?> child) {
103 // For choice statements go through all their cases and fetch their data children
104 if (child instanceof ChoiceEffectiveStatement) {
105 child.streamEffectiveSubstatements(CaseEffectiveStatement.class).forEach(
106 caseStmt -> caseStmt.streamEffectiveSubstatements(SchemaTreeEffectiveStatement.class).forEach(stmt -> {
107 if (stmt instanceof DataTreeEffectiveStatement) {
108 putChild(map, (DataTreeEffectiveStatement<?>) stmt, ref, "data");
110 putChoiceDataChildren(map, ref, stmt);