BUG-6497: Do not lose augmentation statement order
[yangtools.git] / yang / yang-parser-impl / src / main / java / org / opendaylight / yangtools / yang / parser / stmt / rfc6020 / KeyStatementImpl.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;
9
10 import com.google.common.base.Preconditions;
11 import com.google.common.collect.ImmutableSet;
12 import com.google.common.collect.ImmutableSet.Builder;
13 import java.util.Collection;
14 import org.opendaylight.yangtools.yang.model.api.Rfc6020Mapping;
15 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
16 import org.opendaylight.yangtools.yang.model.api.stmt.KeyStatement;
17 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
18 import org.opendaylight.yangtools.yang.parser.spi.SubstatementValidator;
19 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
20 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
21 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
22 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
23 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.KeyEffectiveStatementImpl;
24
25 public class KeyStatementImpl extends AbstractDeclaredStatement<Collection<SchemaNodeIdentifier>> implements
26         KeyStatement {
27     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(Rfc6020Mapping
28             .KEY)
29             .build();
30
31     protected KeyStatementImpl(final StmtContext<Collection<SchemaNodeIdentifier>, KeyStatement, ?> context) {
32         super(context);
33     }
34
35     public static class Definition
36             extends
37             AbstractStatementSupport<Collection<SchemaNodeIdentifier>, KeyStatement,
38                     EffectiveStatement<Collection<SchemaNodeIdentifier>, KeyStatement>> {
39
40         public Definition() {
41             super(Rfc6020Mapping.KEY);
42         }
43
44         @Override
45         public Collection<SchemaNodeIdentifier> parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
46             final Builder<SchemaNodeIdentifier> builder = ImmutableSet.builder();
47             int tokens = 0;
48             for (String keyToken : StmtContextUtils.LIST_KEY_SPLITTER.split(value)) {
49                 builder.add(SchemaNodeIdentifier.create(false, Utils.qNameFromArgument(ctx, keyToken)));
50                 tokens++;
51             }
52
53             // Throws NPE on nulls, retains first inserted value, cannot be modified
54             final Collection<SchemaNodeIdentifier> ret = builder.build();
55
56             Preconditions.checkArgument(ret.size() == tokens, "Key argument '%s' contains duplicates. At %s", value,
57                     ctx.getStatementSourceReference());
58             return ret;
59         }
60
61         @Override
62         public KeyStatement createDeclared(final StmtContext<Collection<SchemaNodeIdentifier>, KeyStatement, ?> ctx) {
63             return new KeyStatementImpl(ctx);
64         }
65
66         @Override
67         public EffectiveStatement<Collection<SchemaNodeIdentifier>, KeyStatement> createEffective(
68                 final StmtContext<Collection<SchemaNodeIdentifier>, KeyStatement,
69                         EffectiveStatement<Collection<SchemaNodeIdentifier>, KeyStatement>> ctx) {
70             return new KeyEffectiveStatementImpl(ctx);
71         }
72
73         @Override
74         public void onFullDefinitionDeclared(StmtContext.Mutable<Collection<SchemaNodeIdentifier>, KeyStatement,
75                 EffectiveStatement<Collection<SchemaNodeIdentifier>, KeyStatement>> stmt) {
76             super.onFullDefinitionDeclared(stmt);
77             SUBSTATEMENT_VALIDATOR.validate(stmt);
78         }
79     }
80 }