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.yang.parser.rfc7950.stmt.uses;
10 import java.util.Collection;
11 import org.opendaylight.yangtools.yang.common.QName;
12 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
13 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
14 import org.opendaylight.yangtools.yang.model.api.stmt.UsesStatement;
15 import org.opendaylight.yangtools.yang.parser.spi.GroupingNamespace;
16 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractQNameStatementSupport;
17 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
18 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
19 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
20 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceContext;
21 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
22 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
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.StmtContextUtils;
26 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
27 import org.opendaylight.yangtools.yang.parser.stmt.reactor.StatementContextBase;
29 public final class UsesStatementSupport extends
30 AbstractQNameStatementSupport<UsesStatement, EffectiveStatement<QName, UsesStatement>> {
31 private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(YangStmtMapping
33 .addAny(YangStmtMapping.AUGMENT)
34 .addOptional(YangStmtMapping.DESCRIPTION)
35 .addAny(YangStmtMapping.IF_FEATURE)
36 .addAny(YangStmtMapping.REFINE)
37 .addOptional(YangStmtMapping.REFERENCE)
38 .addOptional(YangStmtMapping.STATUS)
39 .addOptional(YangStmtMapping.WHEN)
41 private static final UsesStatementSupport INSTANCE = new UsesStatementSupport();
43 private UsesStatementSupport() {
44 super(YangStmtMapping.USES);
47 public static UsesStatementSupport getInstance() {
52 public QName parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
53 return StmtContextUtils.parseNodeIdentifier(ctx, value);
57 public void onFullDefinitionDeclared(
58 final Mutable<QName, UsesStatement, EffectiveStatement<QName, UsesStatement>> usesNode) {
59 if (!usesNode.isSupportedByFeatures()) {
62 super.onFullDefinitionDeclared(usesNode);
64 final ModelActionBuilder usesAction = usesNode.newInferenceAction(ModelProcessingPhase.EFFECTIVE_MODEL);
65 final QName groupingName = usesNode.getStatementArgument();
67 final Prerequisite<StmtContext<?, ?, ?>> sourceGroupingPre = usesAction.requiresCtx(usesNode,
68 GroupingNamespace.class, groupingName, ModelProcessingPhase.EFFECTIVE_MODEL);
69 final Prerequisite<? extends StmtContext.Mutable<?, ?, ?>> targetNodePre = usesAction.mutatesEffectiveCtx(
70 usesNode.getParentContext());
72 usesAction.apply(new InferenceAction() {
75 public void apply(final InferenceContext ctx) {
76 final StatementContextBase<?, ?, ?> targetNodeStmtCtx =
77 (StatementContextBase<?, ?, ?>) targetNodePre.resolve(ctx);
78 final StatementContextBase<?, ?, ?> sourceGrpStmtCtx =
79 (StatementContextBase<?, ?, ?>) sourceGroupingPre.resolve(ctx);
81 UsesStatementImpl.copyFromSourceToTarget(sourceGrpStmtCtx, targetNodeStmtCtx, usesNode);
82 UsesStatementImpl.resolveUsesNode(usesNode, targetNodeStmtCtx);
83 StmtContextUtils.validateIfFeatureAndWhenOnListKeys(usesNode);
87 public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
88 InferenceException.throwIf(failed.contains(sourceGroupingPre),
89 usesNode.getStatementSourceReference(), "Grouping '%s' was not resolved.", groupingName);
90 throw new InferenceException("Unknown error occurred.", usesNode.getStatementSourceReference());
96 public UsesStatement createDeclared(final StmtContext<QName, UsesStatement, ?> ctx) {
97 return new UsesStatementImpl(ctx);
101 public EffectiveStatement<QName, UsesStatement> createEffective(
102 final StmtContext<QName, UsesStatement, EffectiveStatement<QName, UsesStatement>> ctx) {
103 return new UsesEffectiveStatementImpl(ctx);
107 protected SubstatementValidator getSubstatementValidator() {
108 return SUBSTATEMENT_VALIDATOR;