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 static com.google.common.base.Verify.verifyNotNull;
12 import com.google.common.annotations.Beta;
13 import com.google.common.collect.ImmutableList;
14 import org.eclipse.jdt.annotation.NonNull;
15 import org.opendaylight.yangtools.rfc8040.model.api.YangDataEffectiveStatement;
16 import org.opendaylight.yangtools.rfc8040.model.api.YangDataStatement;
17 import org.opendaylight.yangtools.rfc8040.model.api.YangDataStatements;
18 import org.opendaylight.yangtools.yang.common.Empty;
19 import org.opendaylight.yangtools.yang.common.QName;
20 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
21 import org.opendaylight.yangtools.yang.model.api.meta.DeclarationReference;
22 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
23 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
24 import org.opendaylight.yangtools.yang.model.api.stmt.DataTreeEffectiveStatement;
25 import org.opendaylight.yangtools.yang.parser.api.YangParserConfiguration;
26 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStringStatementSupport;
27 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
28 import org.opendaylight.yangtools.yang.parser.spi.meta.InvalidSubstatementException;
29 import org.opendaylight.yangtools.yang.parser.spi.meta.MissingSubstatementException;
30 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
31 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
32 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
33 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
34 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
37 public final class YangDataStatementSupport
38 extends AbstractStringStatementSupport<YangDataStatement, YangDataEffectiveStatement> {
39 private final SubstatementValidator declaredValidator;
41 public YangDataStatementSupport(final YangParserConfiguration config) {
42 super(YangDataStatements.YANG_DATA, StatementPolicy.reject(), config);
43 declaredValidator = SubstatementValidator.builder(YangDataStatements.YANG_DATA)
44 .addMandatory(YangStmtMapping.CONTAINER)
45 .addOptional(YangStmtMapping.USES)
50 public void onStatementAdded(final Mutable<String, YangDataStatement, YangDataEffectiveStatement> ctx) {
51 // as per https://tools.ietf.org/html/rfc8040#section-8,
52 // yang-data is ignored unless it appears as a top-level statement
53 if (ctx.coerceParentContext().getParentContext() != null) {
54 ctx.setIsSupportedToBuildEffective(false);
59 public void onFullDefinitionDeclared(final Mutable<String, YangDataStatement, YangDataEffectiveStatement> ctx) {
60 // Parse and populate our argument to be picked up when we build the effecitve statement
61 final String argument = SourceException.throwIfNull(ctx.argument(), ctx, "yang-data requires an argument");
62 final QName qname = StmtContextUtils.parseIdentifier(ctx, argument);
63 ctx.addToNs(YangDataArgumentNamespace.class, Empty.getInstance(), qname);
67 public boolean isIgnoringIfFeatures() {
72 public boolean isIgnoringConfig() {
77 protected SubstatementValidator getSubstatementValidator() {
78 return declaredValidator;
82 protected YangDataStatement createDeclared(@NonNull final StmtContext<String, YangDataStatement, ?> ctx,
83 final ImmutableList<? extends DeclaredStatement<?>> substatements) {
84 return new YangDataStatementImpl(ctx.getRawArgument(), substatements);
88 protected YangDataStatement attachDeclarationReference(final YangDataStatement stmt,
89 final DeclarationReference reference) {
90 return new RefYangDataStatement(stmt, reference);
94 protected YangDataEffectiveStatement createEffective(final Current<String, YangDataStatement> stmt,
95 final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
96 // So now we need to deal with effective validation. The requirement is that:
97 // It MUST contain data definition statements
98 // that result in exactly one container data node definition.
99 final long dataDefs = substatements.stream().filter(DataTreeEffectiveStatement.class::isInstance).count();
101 throw new MissingSubstatementException("yang-data requires exactly one container", stmt.sourceReference());
104 throw new InvalidSubstatementException(stmt,
105 "yang-data requires exactly one data definition node, found %s", dataDefs);
108 return new YangDataEffectiveStatementImpl(stmt, substatements,
109 verifyNotNull(stmt.namespaceItem(YangDataArgumentNamespace.class, Empty.getInstance())));