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.base;
10 import com.google.common.collect.ImmutableList;
11 import java.util.Collection;
12 import org.opendaylight.yangtools.yang.common.QName;
13 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
14 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
15 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
16 import org.opendaylight.yangtools.yang.model.api.stmt.BaseEffectiveStatement;
17 import org.opendaylight.yangtools.yang.model.api.stmt.BaseStatement;
18 import org.opendaylight.yangtools.yang.model.api.stmt.IdentityStatement;
19 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.BaseQNameStatementSupport;
20 import org.opendaylight.yangtools.yang.parser.spi.IdentityNamespace;
21 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
22 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
23 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
24 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
25 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceContext;
26 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
27 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
28 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
29 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
30 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
31 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
33 public final class BaseStatementSupport extends BaseQNameStatementSupport<BaseStatement, BaseEffectiveStatement> {
34 private static final SubstatementValidator SUBSTATEMENT_VALIDATOR =
35 SubstatementValidator.builder(YangStmtMapping.BASE).build();
36 private static final BaseStatementSupport INSTANCE = new BaseStatementSupport();
38 private BaseStatementSupport() {
39 super(YangStmtMapping.BASE);
42 public static BaseStatementSupport getInstance() {
47 public QName parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
48 return StmtContextUtils.parseNodeIdentifier(ctx, value);
52 public void onStatementDefinitionDeclared(final Mutable<QName, BaseStatement, BaseEffectiveStatement> baseStmtCtx) {
53 final Mutable<?, ?, ?> baseParentCtx = baseStmtCtx.coerceParentContext();
54 if (baseParentCtx.producesDeclared(IdentityStatement.class)) {
55 final QName baseIdentityQName = baseStmtCtx.getArgument();
56 final ModelActionBuilder baseIdentityAction = baseStmtCtx.newInferenceAction(
57 ModelProcessingPhase.STATEMENT_DEFINITION);
58 baseIdentityAction.requiresCtx(baseStmtCtx, IdentityNamespace.class, baseIdentityQName,
59 ModelProcessingPhase.STATEMENT_DEFINITION);
60 baseIdentityAction.mutatesCtx(baseParentCtx, ModelProcessingPhase.STATEMENT_DEFINITION);
62 baseIdentityAction.apply(new InferenceAction() {
64 public void apply(final InferenceContext ctx) {
65 // No-op, we just want to ensure the statement is specified
69 public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
70 throw new InferenceException(baseStmtCtx.sourceReference(),
71 "Unable to resolve identity %s and base identity %s",
72 baseParentCtx.argument(), baseStmtCtx.argument());
79 protected SubstatementValidator getSubstatementValidator() {
80 return SUBSTATEMENT_VALIDATOR;
84 protected BaseStatement createDeclared(final StmtContext<QName, BaseStatement, ?> ctx,
85 final ImmutableList<? extends DeclaredStatement<?>> substatements) {
86 return new RegularBaseStatement(ctx.getArgument(), substatements);
90 protected BaseStatement createEmptyDeclared(final StmtContext<QName, BaseStatement, ?> ctx) {
91 return new EmptyBaseStatement(ctx.getArgument());
95 protected BaseEffectiveStatement createEffective(final Current<QName, BaseStatement> stmt,
96 final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
97 return substatements.isEmpty() ? new EmptyBaseEffectiveStatement(stmt.declared())
98 : new RegularBaseEffectiveStatement(stmt.declared(), substatements);