yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/effective/type/EnumSpecificationEffectiveStatementImpl.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.effective.type;
   9
  10 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  11 import org.opendaylight.yangtools.yang.model.api.stmt.TypeEffectiveStatement;
  12 import org.opendaylight.yangtools.yang.model.api.stmt.TypeStatement.EnumSpecification;
  13 import org.opendaylight.yangtools.yang.model.api.type.EnumTypeDefinition;
  14 import org.opendaylight.yangtools.yang.model.api.type.EnumTypeDefinition.EnumPair;
  15 import org.opendaylight.yangtools.yang.model.util.EnumPairImpl;
  16 import org.opendaylight.yangtools.yang.model.util.type.BaseTypes;
  17 import org.opendaylight.yangtools.yang.model.util.type.EnumerationTypeBuilder;
  18 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  19 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  20 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.DeclaredEffectiveStatementBase;
  21 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.UnknownEffectiveStatementImpl;
  22
  23 public final class EnumSpecificationEffectiveStatementImpl extends
  24         DeclaredEffectiveStatementBase<String, EnumSpecification> implements
  25         TypeEffectiveStatement<EnumSpecification> {
  26
  27     private final EnumTypeDefinition typeDefinition;
  28
  29     public EnumSpecificationEffectiveStatementImpl(final StmtContext<String, EnumSpecification, EffectiveStatement<String, EnumSpecification>> ctx) {
  30         super(ctx);
  31
  32         final EnumerationTypeBuilder builder = BaseTypes.enumerationTypeBuilder(ctx.getSchemaPath().get());
  33         Integer highestValue = null;
  34         for (final EffectiveStatement<?, ?> stmt : effectiveSubstatements()) {
  35             if (stmt instanceof EnumPair) {
  36                 EnumPair p = (EnumPair) stmt;
  37
  38                 if (p.getValue() == null) {
  39                     final Integer newValue;
  40                     if (highestValue == null) {
  41                         newValue = 0;
  42                     } else if (highestValue != 2147483647) {
  43                         newValue = highestValue + 1;
  44                     } else {
  45                         throw new SourceException("Enum " + p + " must have a value statement",
  46                             ctx.getStatementSourceReference());
  47                     }
  48
  49                     p = new EnumPairImpl(p.getName(), newValue, p.getPath(), p.getDescription(), p.getReference(),
  50                         p.getStatus(), p.getUnknownSchemaNodes());
  51                 }
  52
  53                 if (highestValue == null || highestValue < p.getValue()) {
  54                     highestValue = p.getValue();
  55                 }
  56
  57                 builder.addEnum(p);
  58             }
  59             if (stmt instanceof UnknownEffectiveStatementImpl) {
  60                 builder.addUnknownSchemaNode((UnknownEffectiveStatementImpl)stmt);
  61             }
  62         }
  63
  64         typeDefinition = builder.build();
  65     }
  66
  67     @Override
  68     public EnumTypeDefinition getTypeDefinition() {
  69         return typeDefinition;
  70     }
  71 }