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.type.BaseTypes;
  16 import org.opendaylight.yangtools.yang.model.util.type.EnumPairBuilder;
  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(
  30             final StmtContext<String, EnumSpecification, EffectiveStatement<String, EnumSpecification>> ctx) {
  31         super(ctx);
  32
  33         final EnumerationTypeBuilder builder = BaseTypes.enumerationTypeBuilder(ctx.getSchemaPath().get());
  34         Integer highestValue = null;
  35         for (final EffectiveStatement<?, ?> stmt : effectiveSubstatements()) {
  36             if (stmt instanceof EnumEffectiveStatementImpl) {
  37                 final EnumEffectiveStatementImpl enumSubStmt = (EnumEffectiveStatementImpl) stmt;
  38
  39                 final int effectiveValue;
  40                 if (enumSubStmt.getDeclaredValue() == null) {
  41                     if (highestValue != null) {
  42                         SourceException.throwIf(highestValue == 2147483647, ctx.getStatementSourceReference(),
  43                                 "Enum '%s' must have a value statement", enumSubStmt);
  44                         effectiveValue = highestValue + 1;
  45                     } else {
  46                         effectiveValue = 0;
  47                     }
  48                 } else {
  49                     effectiveValue = enumSubStmt.getDeclaredValue();
  50                 }
  51
  52                 final EnumPair p = EnumPairBuilder.create(enumSubStmt.getName(), effectiveValue)
  53                         .setDescription(enumSubStmt.getDescription()).setReference(enumSubStmt.getReference())
  54                         .setStatus(enumSubStmt.getStatus()).setUnknownSchemaNodes(enumSubStmt.getUnknownSchemaNodes())
  55                         .build();
  56
  57                 if (highestValue == null || highestValue < p.getValue()) {
  58                     highestValue = p.getValue();
  59                 }
  60
  61                 builder.addEnum(p);
  62             }
  63             if (stmt instanceof UnknownEffectiveStatementImpl) {
  64                 builder.addUnknownSchemaNode((UnknownEffectiveStatementImpl) stmt);
  65             }
  66         }
  67
  68         typeDefinition = builder.build();
  69     }
  70
  71     @Override
  72     public EnumTypeDefinition getTypeDefinition() {
  73         return typeDefinition;
  74     }
  75 }