yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/type/BitsSpecificationEffectiveStatement.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.rfc7950.stmt.type;
   9
  10 import com.google.common.annotations.VisibleForTesting;
  11 import javax.annotation.Nonnull;
  12 import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;
  13 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  14 import org.opendaylight.yangtools.yang.model.api.stmt.TypeEffectiveStatement;
  15 import org.opendaylight.yangtools.yang.model.api.stmt.TypeStatement.BitsSpecification;
  16 import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition;
  17 import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition.Bit;
  18 import org.opendaylight.yangtools.yang.model.util.type.BaseTypes;
  19 import org.opendaylight.yangtools.yang.model.util.type.BitsTypeBuilder;
  20 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.DeclaredEffectiveStatementBase;
  21 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.bit.BitEffectiveStatementImpl;
  22 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  23 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  24
  25 @VisibleForTesting
  26 // FIXME: hide this class
  27 public final class BitsSpecificationEffectiveStatement extends
  28         DeclaredEffectiveStatementBase<String, BitsSpecification> implements TypeEffectiveStatement<BitsSpecification> {
  29
  30     private final BitsTypeDefinition typeDefinition;
  31
  32     BitsSpecificationEffectiveStatement(
  33             final StmtContext<String, BitsSpecification, EffectiveStatement<String, BitsSpecification>> ctx) {
  34         super(ctx);
  35
  36         final BitsTypeBuilder builder = BaseTypes.bitsTypeBuilder(ctx.getSchemaPath().get());
  37         Long highestPosition = null;
  38         for (final EffectiveStatement<?, ?> stmt : effectiveSubstatements()) {
  39             if (stmt instanceof BitEffectiveStatementImpl) {
  40                 final BitEffectiveStatementImpl bitSubStmt = (BitEffectiveStatementImpl) stmt;
  41
  42                 final long effectivePos;
  43                 if (bitSubStmt.getDeclaredPosition() == null) {
  44                     if (highestPosition != null) {
  45                         SourceException.throwIf(highestPosition == 4294967295L, ctx.getStatementSourceReference(),
  46                                 "Bit %s must have a position statement", bitSubStmt);
  47                         effectivePos = highestPosition + 1;
  48                     } else {
  49                         effectivePos = 0L;
  50                     }
  51                 } else {
  52                     effectivePos = bitSubStmt.getDeclaredPosition();
  53                 }
  54
  55                 final Bit bit = EffectiveTypeUtil.buildBit(bitSubStmt, effectivePos);
  56                 SourceException.throwIf(bit.getPosition() < 0L && bit.getPosition() > 4294967295L,
  57                         ctx.getStatementSourceReference(), "Bit %s has illegal position", bit);
  58
  59                 if (highestPosition == null || highestPosition < bit.getPosition()) {
  60                     highestPosition = bit.getPosition();
  61                 }
  62
  63                 builder.addBit(bit);
  64             }
  65             if (stmt instanceof UnknownSchemaNode) {
  66                 builder.addUnknownSchemaNode((UnknownSchemaNode) stmt);
  67             }
  68         }
  69
  70         typeDefinition = builder.build();
  71     }
  72
  73     @Nonnull
  74     @Override
  75     public BitsTypeDefinition getTypeDefinition() {
  76         return typeDefinition;
  77     }
  78 }