yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/effective/type/BitsSpecificationEffectiveStatementImpl.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 javax.annotation.Nonnull;
  11 import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;
  12 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  13 import org.opendaylight.yangtools.yang.model.api.stmt.TypeEffectiveStatement;
  14 import org.opendaylight.yangtools.yang.model.api.stmt.TypeStatement.BitsSpecification;
  15 import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition;
  16 import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition.Bit;
  17 import org.opendaylight.yangtools.yang.model.util.type.BaseTypes;
  18 import org.opendaylight.yangtools.yang.model.util.type.BitsTypeBuilder;
  19 import org.opendaylight.yangtools.yang.parser.rfc6020.util.DeclaredEffectiveStatementBase;
  20 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  21 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  22
  23 public final class BitsSpecificationEffectiveStatementImpl extends
  24         DeclaredEffectiveStatementBase<String, BitsSpecification> implements TypeEffectiveStatement<BitsSpecification> {
  25
  26     private final BitsTypeDefinition typeDefinition;
  27
  28     public BitsSpecificationEffectiveStatementImpl(
  29             final StmtContext<String, BitsSpecification, EffectiveStatement<String, BitsSpecification>> ctx) {
  30         super(ctx);
  31
  32         final BitsTypeBuilder builder = BaseTypes.bitsTypeBuilder(ctx.getSchemaPath().get());
  33         Long highestPosition = null;
  34         for (final EffectiveStatement<?, ?> stmt : effectiveSubstatements()) {
  35             if (stmt instanceof BitEffectiveStatementImpl) {
  36                 final BitEffectiveStatementImpl bitSubStmt = (BitEffectiveStatementImpl) stmt;
  37
  38                 final long effectivePos;
  39                 if (bitSubStmt.getDeclaredPosition() == null) {
  40                     if (highestPosition != null) {
  41                         SourceException.throwIf(highestPosition == 4294967295L, ctx.getStatementSourceReference(),
  42                                 "Bit %s must have a position statement", bitSubStmt);
  43                         effectivePos = highestPosition + 1;
  44                     } else {
  45                         effectivePos = 0L;
  46                     }
  47                 } else {
  48                     effectivePos = bitSubStmt.getDeclaredPosition();
  49                 }
  50
  51                 final Bit bit = EffectiveTypeUtil.buildBit(bitSubStmt, effectivePos);
  52                 SourceException.throwIf(bit.getPosition() < 0L && bit.getPosition() > 4294967295L,
  53                         ctx.getStatementSourceReference(), "Bit %s has illegal position", bit);
  54
  55                 if (highestPosition == null || highestPosition < bit.getPosition()) {
  56                     highestPosition = bit.getPosition();
  57                 }
  58
  59                 builder.addBit(bit);
  60             }
  61             if (stmt instanceof UnknownSchemaNode) {
  62                 builder.addUnknownSchemaNode((UnknownSchemaNode) stmt);
  63             }
  64         }
  65
  66         typeDefinition = builder.build();
  67     }
  68
  69     @Nonnull
  70     @Override
  71     public BitsTypeDefinition getTypeDefinition() {
  72         return typeDefinition;
  73     }
  74 }