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.grouping;
10 import org.opendaylight.yangtools.yang.common.QName;
11 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
12 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
13 import org.opendaylight.yangtools.yang.model.api.stmt.GroupingStatement;
14 import org.opendaylight.yangtools.yang.parser.spi.GroupingNamespace;
15 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractQNameStatementSupport;
16 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
17 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
18 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
19 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
21 abstract class AbstractGroupingStatementSupport
22 extends AbstractQNameStatementSupport<GroupingStatement, EffectiveStatement<QName, GroupingStatement>> {
24 AbstractGroupingStatementSupport() {
25 super(YangStmtMapping.GROUPING);
29 public final QName parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
30 return StmtContextUtils.parseIdentifier(ctx, value);
34 public final GroupingStatement createDeclared(final StmtContext<QName, GroupingStatement, ?> ctx) {
35 // Shadowing check: make sure grandparent does not see a conflicting definition. This is required to ensure
36 // that a grouping in child scope does not shadow a grouping in parent scope which occurs later in the text.
37 final StmtContext<?, ?, ?> parent = ctx.getParentContext();
39 final StmtContext<?, ?, ?> grandParent = parent.getParentContext();
40 if (grandParent != null) {
41 checkConflict(grandParent, ctx);
45 return new GroupingStatementImpl(ctx);
49 public final EffectiveStatement<QName, GroupingStatement> createEffective(
50 final StmtContext<QName, GroupingStatement, EffectiveStatement<QName, GroupingStatement>> ctx) {
51 return new GroupingEffectiveStatementImpl(ctx);
55 public final void onFullDefinitionDeclared(final Mutable<QName, GroupingStatement,
56 EffectiveStatement<QName, GroupingStatement>> stmt) {
57 super.onFullDefinitionDeclared(stmt);
60 final Mutable<?, ?, ?> parent = stmt.getParentContext();
62 // Shadowing check: make sure we do not trample on pre-existing definitions. This catches sibling
63 // declarations and parent declarations which have already been declared.
64 checkConflict(parent, stmt);
65 parent.addContext(GroupingNamespace.class, stmt.coerceStatementArgument(), stmt);
70 private static void checkConflict(final StmtContext<?, ?, ?> parent, final StmtContext<QName, ?, ?> stmt) {
71 final QName arg = stmt.coerceStatementArgument();
72 final StmtContext<?, ?, ?> existing = parent.getFromNamespace(GroupingNamespace.class, arg);
73 SourceException.throwIf(existing != null, stmt.getStatementSourceReference(), "Duplicate name for grouping %s",