2 * Copyright (c) 2017 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.rfc8040.parser;
10 import com.google.common.annotations.Beta;
11 import com.google.common.collect.ImmutableList;
12 import org.eclipse.jdt.annotation.NonNull;
13 import org.opendaylight.yangtools.rfc8040.model.api.YangDataEffectiveStatement;
14 import org.opendaylight.yangtools.rfc8040.model.api.YangDataStatement;
15 import org.opendaylight.yangtools.rfc8040.model.api.YangDataStatements;
16 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
17 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
18 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
19 import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
20 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.AbstractDeclaredStatement.WithRawStringArgument.WithSubstatements;
21 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.BaseStringStatementSupport;
22 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
23 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
24 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
25 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
28 public final class YangDataStatementSupport
29 extends BaseStringStatementSupport<YangDataStatement, YangDataEffectiveStatement> {
31 * Declared statement representation of 'yang-data' extension defined in
32 * <a href="https://tools.ietf.org/html/rfc8040#section-8">RFC 8040</a>.
34 private static final class Declared extends WithSubstatements implements YangDataStatement {
35 Declared(final String rawArgument, final ImmutableList<? extends DeclaredStatement<?>> substatements) {
36 super(rawArgument, substatements);
40 private static final YangDataStatementSupport INSTANCE = new YangDataStatementSupport(YangDataStatements.YANG_DATA);
42 private final SubstatementValidator validator;
44 private YangDataStatementSupport(final StatementDefinition definition) {
46 validator = SubstatementValidator.builder(definition)
47 .addMandatory(YangStmtMapping.CONTAINER)
48 .addOptional(YangStmtMapping.USES)
52 public static YangDataStatementSupport getInstance() {
57 public void onFullDefinitionDeclared(final Mutable<String, YangDataStatement, YangDataEffectiveStatement> ctx) {
58 // as per https://tools.ietf.org/html/rfc8040#section-8,
59 // yang-data is ignored unless it appears as a top-level statement
60 if (ctx.coerceParentContext().getParentContext() != null) {
61 ctx.setIsSupportedToBuildEffective(false);
66 public boolean isIgnoringIfFeatures() {
71 public boolean isIgnoringConfig() {
76 protected SubstatementValidator getSubstatementValidator() {
81 protected YangDataStatement createDeclared(@NonNull final StmtContext<String, YangDataStatement, ?> ctx,
82 final ImmutableList<? extends DeclaredStatement<?>> substatements) {
83 return new Declared(ctx.coerceRawStatementArgument(), substatements);
87 protected YangDataStatement createEmptyDeclared(final StmtContext<String, YangDataStatement, ?> ctx) {
88 return createDeclared(ctx, ImmutableList.of());
92 protected YangDataEffectiveStatement createEffective(final Current<String, YangDataStatement> stmt,
93 final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
94 // in case of yang-data node we need to perform substatement validation at the point when we have
95 // effective substatement contexts already available - if the node has only a uses statement declared in it,
96 // one top-level container node may very well be added to the yang-data as an effective statement
97 validator.validate(stmt.caerbannog());
98 return new YangDataEffectiveStatementImpl(stmt, substatements);