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