yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/WhenStatementImpl.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 javax.annotation.Nonnull;
  11 import javax.annotation.Nullable;
  12 import org.opendaylight.yangtools.yang.model.api.RevisionAwareXPath;
  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.ReferenceStatement;
  17 import org.opendaylight.yangtools.yang.model.api.stmt.WhenStatement;
  18 import org.opendaylight.yangtools.yang.parser.spi.SubstatementValidator;
  19 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
  20 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
  21 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  22 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  23 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.WhenEffectiveStatementImpl;
  24
  25 public class WhenStatementImpl extends AbstractDeclaredStatement<RevisionAwareXPath> implements WhenStatement {
  26     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(Rfc6020Mapping
  27             .WHEN)
  28             .add(Rfc6020Mapping.DESCRIPTION, 0, 1)
  29             .add(Rfc6020Mapping.REFERENCE, 0, 1)
  30             .build();
  31
  32     protected WhenStatementImpl(final StmtContext<RevisionAwareXPath, WhenStatement, ?> context) {
  33         super(context);
  34     }
  35
  36     public static class Definition extends
  37             AbstractStatementSupport<RevisionAwareXPath, WhenStatement, EffectiveStatement<RevisionAwareXPath, WhenStatement>> {
  38
  39         public Definition() {
  40             super(Rfc6020Mapping.WHEN);
  41         }
  42
  43         @Override
  44         public RevisionAwareXPath parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
  45             return Utils.parseXPath(ctx, value);
  46         }
  47
  48         @Override
  49         public WhenStatement createDeclared(final StmtContext<RevisionAwareXPath, WhenStatement, ?> ctx) {
  50             return new WhenStatementImpl(ctx);
  51         }
  52
  53         @Override
  54         public EffectiveStatement<RevisionAwareXPath, WhenStatement> createEffective(
  55                 final StmtContext<RevisionAwareXPath, WhenStatement, EffectiveStatement<RevisionAwareXPath, WhenStatement>> ctx) {
  56             return new WhenEffectiveStatementImpl(ctx);
  57         }
  58
  59         @Override
  60         public void onFullDefinitionDeclared(StmtContext.Mutable<RevisionAwareXPath, WhenStatement,
  61                 EffectiveStatement<RevisionAwareXPath, WhenStatement>> stmt) throws SourceException {
  62             super.onFullDefinitionDeclared(stmt);
  63             SUBSTATEMENT_VALIDATOR.validate(stmt);
  64         }
  65     }
  66
  67     @Nonnull
  68     @Override
  69     public RevisionAwareXPath getCondition() {
  70         return argument();
  71     }
  72
  73     @Nullable
  74     @Override
  75     public DescriptionStatement getDescription() {
  76         return firstDeclared(DescriptionStatement.class);
  77     }
  78
  79     @Nullable
  80     @Override
  81     public ReferenceStatement getReference() {
  82         return firstDeclared(ReferenceStatement.class);
  83     }
  84 }