yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/type/InstanceIdentifierSpecificationSupport.java

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies, s.r.o. 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.collect.ImmutableList;
  11 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
  12 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
  13 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  14 import org.opendaylight.yangtools.yang.model.api.stmt.RequireInstanceEffectiveStatement;
  15 import org.opendaylight.yangtools.yang.model.api.stmt.TypeStatement.InstanceIdentifierSpecification;
  16 import org.opendaylight.yangtools.yang.model.util.type.BaseTypes;
  17 import org.opendaylight.yangtools.yang.model.util.type.InstanceIdentifierTypeBuilder;
  18 import org.opendaylight.yangtools.yang.model.util.type.RestrictedTypes;
  19 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStringStatementSupport;
  20 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
  21 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  22 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
  23
  24 final class InstanceIdentifierSpecificationSupport
  25         extends AbstractStringStatementSupport<InstanceIdentifierSpecification,
  26             EffectiveStatement<String, InstanceIdentifierSpecification>> {
  27     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(
  28         YangStmtMapping.TYPE)
  29         .addOptional(YangStmtMapping.REQUIRE_INSTANCE)
  30         .build();
  31
  32     InstanceIdentifierSpecificationSupport() {
  33         super(YangStmtMapping.TYPE, StatementPolicy.contextIndependent());
  34     }
  35
  36     @Override
  37     protected SubstatementValidator getSubstatementValidator() {
  38         return SUBSTATEMENT_VALIDATOR;
  39     }
  40
  41     @Override
  42     protected InstanceIdentifierSpecification createDeclared(
  43             final StmtContext<String, InstanceIdentifierSpecification, ?> ctx,
  44             final ImmutableList<? extends DeclaredStatement<?>> substatements) {
  45         return new RegularInstanceIdentifierSpecification(ctx.getRawArgument(), substatements);
  46     }
  47
  48     @Override
  49     protected InstanceIdentifierSpecification createEmptyDeclared(
  50             final StmtContext<String, InstanceIdentifierSpecification, ?> ctx) {
  51         return new EmptyIdentifierSpecification(ctx.getRawArgument());
  52     }
  53
  54     @Override
  55     protected EffectiveStatement<String, InstanceIdentifierSpecification> createEffective(
  56             final Current<String, InstanceIdentifierSpecification> stmt,
  57             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
  58         final InstanceIdentifierTypeBuilder builder = RestrictedTypes.newInstanceIdentifierBuilder(
  59             BaseTypes.instanceIdentifierType(), stmt.argumentAsTypeQName());
  60
  61         // TODO: we could do better here for empty substatements, but its really splitting hairs
  62         for (EffectiveStatement<?, ?> subStmt : substatements) {
  63             if (subStmt instanceof RequireInstanceEffectiveStatement) {
  64                 builder.setRequireInstance(((RequireInstanceEffectiveStatement)subStmt).argument());
  65             }
  66         }
  67
  68         return new TypeEffectiveStatementImpl<>(stmt.declared(), substatements, builder);
  69     }
  70 }