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.meta;
10 import com.google.common.collect.ImmutableList;
11 import com.google.common.collect.ImmutableMap;
12 import com.google.common.collect.ImmutableMap.Builder;
13 import org.eclipse.jdt.annotation.NonNull;
14 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
15 import org.opendaylight.yangtools.yang.model.api.meta.DeclarationReference;
16 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
17 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
18 import org.opendaylight.yangtools.yang.model.api.stmt.FractionDigitsEffectiveStatement;
19 import org.opendaylight.yangtools.yang.model.api.stmt.FractionDigitsStatement;
20 import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatementDecorators;
21 import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatements;
22 import org.opendaylight.yangtools.yang.model.ri.stmt.EffectiveStatements;
23 import org.opendaylight.yangtools.yang.parser.api.YangParserConfiguration;
24 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
25 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
26 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
27 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
28 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
30 public final class FractionDigitsStatementSupport
31 extends AbstractStatementSupport<Integer, FractionDigitsStatement, FractionDigitsEffectiveStatement> {
32 private static final SubstatementValidator SUBSTATEMENT_VALIDATOR =
33 SubstatementValidator.builder(YangStmtMapping.FRACTION_DIGITS).build();
35 // FIXME: move this to yang-model-spi
36 private static final ImmutableMap<FractionDigitsStatement, FractionDigitsEffectiveStatement> EMPTY_EFF;
39 final Builder<FractionDigitsStatement, FractionDigitsEffectiveStatement> effBuilder = ImmutableMap.builder();
40 for (int i = 1; i <= 18; ++i) {
41 final FractionDigitsStatement decl = DeclaredStatements.createFractionDigits(i);
42 effBuilder.put(decl, EffectiveStatements.createFractionDigits(decl));
44 EMPTY_EFF = effBuilder.build();
47 public FractionDigitsStatementSupport(final YangParserConfiguration config) {
48 super(YangStmtMapping.FRACTION_DIGITS, StatementPolicy.contextIndependent(), config, SUBSTATEMENT_VALIDATOR);
52 public Integer parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
53 final int fractionDigits;
55 fractionDigits = Integer.parseInt(value);
56 } catch (NumberFormatException e) {
57 throw new SourceException(ctx, e, "%s is not valid fraction-digits integer argument", value);
59 if (fractionDigits < 1 || fractionDigits > 18) {
60 throw new SourceException("fraction-digits argument should be integer within [1..18]", ctx);
62 return fractionDigits;
66 protected FractionDigitsStatement createDeclared(final StmtContext<Integer, FractionDigitsStatement, ?> ctx,
67 final ImmutableList<? extends DeclaredStatement<?>> substatements) {
68 return DeclaredStatements.createFractionDigits(ctx.getArgument(), substatements);
72 protected FractionDigitsStatement attachDeclarationReference(final FractionDigitsStatement stmt,
73 final DeclarationReference reference) {
74 return DeclaredStatementDecorators.decorateFractionDigits(stmt, reference);
78 protected FractionDigitsEffectiveStatement createEffective(final Current<Integer, FractionDigitsStatement> stmt,
79 final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
80 return substatements.isEmpty() ? createEmptyEffective(stmt.declared())
81 : EffectiveStatements.createFractionDigits(stmt.declared(), substatements);
84 private static @NonNull FractionDigitsEffectiveStatement createEmptyEffective(
85 final FractionDigitsStatement declared) {
86 final FractionDigitsEffectiveStatement shared = EMPTY_EFF.get(declared);
87 return shared != null ? shared : EffectiveStatements.createFractionDigits(declared);