yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/PatternStatementImpl.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.yangtools.yang.parser.stmt.rfc6020;
   9
  10 import com.google.common.base.Optional;
  11 import java.util.regex.Pattern;
  12 import java.util.regex.PatternSyntaxException;
  13 import org.opendaylight.yangtools.yang.model.api.Rfc6020Mapping;
  14 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  15 import org.opendaylight.yangtools.yang.model.api.stmt.DescriptionStatement;
  16 import org.opendaylight.yangtools.yang.model.api.stmt.ErrorAppTagStatement;
  17 import org.opendaylight.yangtools.yang.model.api.stmt.ErrorMessageStatement;
  18 import org.opendaylight.yangtools.yang.model.api.stmt.PatternStatement;
  19 import org.opendaylight.yangtools.yang.model.api.stmt.ReferenceStatement;
  20 import org.opendaylight.yangtools.yang.model.api.type.PatternConstraint;
  21 import org.opendaylight.yangtools.yang.parser.spi.SubstatementValidator;
  22 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
  23 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
  24 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  25 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.PatternConstraintEffectiveImpl;
  26 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.PatternEffectiveStatementImpl;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 public class PatternStatementImpl extends AbstractDeclaredStatement<PatternConstraint> implements PatternStatement {
  31     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(Rfc6020Mapping
  32             .PATTERN)
  33             .add(Rfc6020Mapping.DESCRIPTION, 0, 1)
  34             .add(Rfc6020Mapping.ERROR_APP_TAG, 0, 1)
  35             .add(Rfc6020Mapping.ERROR_MESSAGE, 0, 1)
  36             .add(Rfc6020Mapping.REFERENCE, 0, 1)
  37             .build();
  38     private static final Logger LOG = LoggerFactory.getLogger(PatternStatementImpl.class);
  39
  40     protected PatternStatementImpl(final StmtContext<PatternConstraint, PatternStatement, ?> context) {
  41         super(context);
  42     }
  43
  44     public static class Definition
  45             extends
  46             AbstractStatementSupport<PatternConstraint, PatternStatement, EffectiveStatement<PatternConstraint, PatternStatement>> {
  47
  48         public Definition() {
  49             super(Rfc6020Mapping.PATTERN);
  50         }
  51
  52         @Override
  53         public PatternConstraint parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
  54             final String pattern = "^" + Utils.fixUnicodeScriptPattern(value) + '$';
  55
  56             try {
  57                 Pattern.compile(pattern);
  58             } catch (PatternSyntaxException e) {
  59                 LOG.debug("Pattern \"{}\" failed to compile at {}", pattern, ctx.getStatementSourceReference(), e);
  60                 return null;
  61             }
  62
  63             return new PatternConstraintEffectiveImpl(pattern, Optional.<String>absent(), Optional.<String>absent());
  64         }
  65
  66         @Override
  67         public PatternStatement createDeclared(final StmtContext<PatternConstraint, PatternStatement, ?> ctx) {
  68             return new PatternStatementImpl(ctx);
  69         }
  70
  71         @Override
  72         public EffectiveStatement<PatternConstraint, PatternStatement> createEffective(
  73                 final StmtContext<PatternConstraint, PatternStatement, EffectiveStatement<PatternConstraint, PatternStatement>> ctx) {
  74             return new PatternEffectiveStatementImpl(ctx);
  75         }
  76
  77         @Override
  78         public void onFullDefinitionDeclared(StmtContext.Mutable<PatternConstraint, PatternStatement,
  79                 EffectiveStatement<PatternConstraint, PatternStatement>> stmt) {
  80             super.onFullDefinitionDeclared(stmt);
  81             SUBSTATEMENT_VALIDATOR.validate(stmt);
  82         }
  83     }
  84
  85     @Override
  86     public ErrorAppTagStatement getErrorAppTagStatement() {
  87         return firstDeclared(ErrorAppTagStatement.class);
  88     }
  89
  90     @Override
  91     public ErrorMessageStatement getErrorMessageStatement() {
  92         return firstDeclared(ErrorMessageStatement.class);
  93     }
  94
  95     @Override
  96     public DescriptionStatement getDescription() {
  97         return firstDeclared(DescriptionStatement.class);
  98     }
  99
 100     @Override
 101     public ReferenceStatement getReference() {
 102         return firstDeclared(ReferenceStatement.class);
 103     }
 104
 105     @Override
 106     public PatternConstraint getValue() {
 107         return argument();
 108     }
 109
 110 }