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 com.google.common.collect.ImmutableList;
11 import java.util.regex.Pattern;
12 import java.util.regex.PatternSyntaxException;
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.PatternEffectiveStatement;
17 import org.opendaylight.yangtools.yang.model.api.stmt.PatternExpression;
18 import org.opendaylight.yangtools.yang.model.api.stmt.PatternStatement;
19 import org.opendaylight.yangtools.yang.model.util.RegexUtils;
20 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.BaseStatementSupport;
21 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
22 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
23 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
25 abstract class AbstractPatternStatementSupport
26 extends BaseStatementSupport<PatternExpression, PatternStatement, PatternEffectiveStatement> {
27 AbstractPatternStatementSupport() {
28 super(YangStmtMapping.PATTERN, CopyPolicy.CONTEXT_INDEPENDENT);
32 public final PatternExpression parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
33 final String pattern = RegexUtils.getJavaRegexFromXSD(value);
35 Pattern.compile(pattern);
36 } catch (final PatternSyntaxException e) {
37 throw new SourceException(ctx.sourceReference(), e, "Pattern \"%s\" failed to compile", pattern);
39 return PatternExpression.of(value, pattern);
43 protected final PatternStatement createDeclared(final StmtContext<PatternExpression, PatternStatement, ?> ctx,
44 final ImmutableList<? extends DeclaredStatement<?>> substatements) {
45 return new RegularPatternStatement(ctx.getArgument(), substatements);
49 protected final PatternStatement createEmptyDeclared(
50 final StmtContext<PatternExpression, PatternStatement, ?> ctx) {
51 return new EmptyPatternStatement(ctx.getArgument());
55 protected final PatternEffectiveStatement createEffective(final Current<PatternExpression, PatternStatement> stmt,
56 final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
57 return substatements.isEmpty() ? new EmptyPatternEffectiveStatement(stmt.declared())
58 : new RegularPatternEffectiveStatement(stmt.declared(), substatements);