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.pattern;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.annotations.Beta;
13 import com.google.common.collect.ImmutableList;
14 import java.util.regex.Pattern;
15 import java.util.regex.PatternSyntaxException;
16 import org.eclipse.jdt.annotation.NonNull;
17 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
18 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
19 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
20 import org.opendaylight.yangtools.yang.model.api.stmt.PatternEffectiveStatement;
21 import org.opendaylight.yangtools.yang.model.api.stmt.PatternExpression;
22 import org.opendaylight.yangtools.yang.model.api.stmt.PatternStatement;
23 import org.opendaylight.yangtools.yang.model.util.RegexUtils;
24 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.BaseStatementSupport;
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;
31 public final class PatternStatementSupport
32 extends BaseStatementSupport<PatternExpression, PatternStatement, PatternEffectiveStatement> {
33 private static final @NonNull PatternStatementSupport RFC6020_INSTANCE = new PatternStatementSupport(
34 SubstatementValidator.builder(YangStmtMapping.PATTERN)
35 .addOptional(YangStmtMapping.DESCRIPTION)
36 .addOptional(YangStmtMapping.ERROR_APP_TAG)
37 .addOptional(YangStmtMapping.ERROR_MESSAGE)
38 .addOptional(YangStmtMapping.REFERENCE)
40 private static final @NonNull PatternStatementSupport RFC7950_INSTANCE = new PatternStatementSupport(
41 SubstatementValidator.builder(YangStmtMapping.PATTERN)
42 .addOptional(YangStmtMapping.DESCRIPTION)
43 .addOptional(YangStmtMapping.ERROR_APP_TAG)
44 .addOptional(YangStmtMapping.ERROR_MESSAGE)
45 .addOptional(YangStmtMapping.MODIFIER)
46 .addOptional(YangStmtMapping.REFERENCE)
49 private final SubstatementValidator validator;
51 private PatternStatementSupport(final SubstatementValidator validator) {
52 super(YangStmtMapping.PATTERN, CopyPolicy.CONTEXT_INDEPENDENT);
53 this.validator = requireNonNull(validator);
56 public static @NonNull PatternStatementSupport rfc6020Instance() {
57 return RFC6020_INSTANCE;
60 public static @NonNull PatternStatementSupport rfc7950Instance() {
61 return RFC7950_INSTANCE;
65 public PatternExpression parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
66 final String pattern = RegexUtils.getJavaRegexFromXSD(value);
68 Pattern.compile(pattern);
69 } catch (final PatternSyntaxException e) {
70 throw new SourceException(ctx, e, "Pattern \"%s\" failed to compile", pattern);
72 return PatternExpression.of(value, pattern);
76 protected SubstatementValidator getSubstatementValidator() {
81 protected PatternStatement createDeclared(final StmtContext<PatternExpression, PatternStatement, ?> ctx,
82 final ImmutableList<? extends DeclaredStatement<?>> substatements) {
83 return new RegularPatternStatement(ctx.getArgument(), substatements);
87 protected PatternStatement createEmptyDeclared(
88 final StmtContext<PatternExpression, PatternStatement, ?> ctx) {
89 return new EmptyPatternStatement(ctx.getArgument());
93 protected PatternEffectiveStatement createEffective(final Current<PatternExpression, PatternStatement> stmt,
94 final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
95 return substatements.isEmpty() ? new EmptyPatternEffectiveStatement(stmt.declared())
96 : new RegularPatternEffectiveStatement(stmt.declared(), substatements);