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.fraction_digits;
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.DeclaredStatement;
16 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
17 import org.opendaylight.yangtools.yang.model.api.stmt.FractionDigitsEffectiveStatement;
18 import org.opendaylight.yangtools.yang.model.api.stmt.FractionDigitsStatement;
19 import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatements;
20 import org.opendaylight.yangtools.yang.model.ri.stmt.EffectiveStatements;
21 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
22 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
23 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
24 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
25 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
27 public final class FractionDigitsStatementSupport
28 extends AbstractStatementSupport<Integer, FractionDigitsStatement, FractionDigitsEffectiveStatement> {
29 private static final SubstatementValidator SUBSTATEMENT_VALIDATOR =
30 SubstatementValidator.builder(YangStmtMapping.FRACTION_DIGITS).build();
31 private static final FractionDigitsStatementSupport INSTANCE = new FractionDigitsStatementSupport();
33 // FIXME: move this to yang-model-spi
34 private static final ImmutableMap<FractionDigitsStatement, FractionDigitsEffectiveStatement> EMPTY_EFF;
37 final Builder<FractionDigitsStatement, FractionDigitsEffectiveStatement> effBuilder = ImmutableMap.builder();
38 for (int i = 1; i <= 18; ++i) {
39 final FractionDigitsStatement decl = DeclaredStatements.createFractionDigits(i);
40 effBuilder.put(decl, EffectiveStatements.createFractionDigits(decl));
42 EMPTY_EFF = effBuilder.build();
45 private FractionDigitsStatementSupport() {
46 super(YangStmtMapping.FRACTION_DIGITS, StatementPolicy.contextIndependent());
49 public static FractionDigitsStatementSupport getInstance() {
54 public Integer parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
55 final int fractionDigits;
57 fractionDigits = Integer.parseInt(value);
58 } catch (NumberFormatException e) {
59 throw new SourceException(ctx, e, "%s is not valid fraction-digits integer argument", value);
61 if (fractionDigits < 1 || fractionDigits > 18) {
62 throw new SourceException("fraction-digits argument should be integer within [1..18]", ctx);
64 return fractionDigits;
68 protected SubstatementValidator getSubstatementValidator() {
69 return SUBSTATEMENT_VALIDATOR;
73 protected FractionDigitsStatement createDeclared(final StmtContext<Integer, FractionDigitsStatement, ?> ctx,
74 final ImmutableList<? extends DeclaredStatement<?>> substatements) {
75 return DeclaredStatements.createFractionDigits(ctx.getArgument(), substatements);
79 protected FractionDigitsStatement createEmptyDeclared(final StmtContext<Integer, FractionDigitsStatement, ?> ctx) {
80 return DeclaredStatements.createFractionDigits(ctx.getArgument());
84 protected FractionDigitsEffectiveStatement createEffective(final Current<Integer, FractionDigitsStatement> stmt,
85 final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
86 return substatements.isEmpty() ? createEmptyEffective(stmt.declared())
87 : EffectiveStatements.createFractionDigits(stmt.declared(), substatements);
90 private static @NonNull FractionDigitsEffectiveStatement createEmptyEffective(
91 final FractionDigitsStatement declared) {
92 final FractionDigitsEffectiveStatement shared = EMPTY_EFF.get(declared);
93 return shared != null ? shared : EffectiveStatements.createFractionDigits(declared);