Use AbstractStringStatementSupport for type supports
[yangtools.git] / 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 }