Use Empty instead of Void for argument
[yangtools.git] / yang / rfc6536-parser-support / src / main / java / org / opendaylight / yangtools / rfc6536 / parser / DefaultDenyWriteStatementSupport.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.rfc6536.parser;
9
10 import com.google.common.collect.ImmutableList;
11 import org.eclipse.jdt.annotation.NonNull;
12 import org.opendaylight.yangtools.rfc6536.model.api.DefaultDenyWriteEffectiveStatement;
13 import org.opendaylight.yangtools.rfc6536.model.api.DefaultDenyWriteSchemaNode;
14 import org.opendaylight.yangtools.rfc6536.model.api.DefaultDenyWriteStatement;
15 import org.opendaylight.yangtools.rfc6536.model.api.NACMStatements;
16 import org.opendaylight.yangtools.yang.common.Empty;
17 import org.opendaylight.yangtools.yang.common.QName;
18 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
19 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
20 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
21 import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
22 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.AbstractDeclaredStatement.WithoutArgument.WithSubstatements;
23 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.UnknownEffectiveStatementBase;
24 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractEmptyStatementSupport;
25 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
26 import org.opendaylight.yangtools.yang.parser.spi.meta.SchemaPathSupport;
27 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
28 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
29
30 public final class DefaultDenyWriteStatementSupport
31         extends AbstractEmptyStatementSupport<DefaultDenyWriteStatement, DefaultDenyWriteEffectiveStatement> {
32     private static final class Declared extends WithSubstatements implements DefaultDenyWriteStatement {
33         static final @NonNull Declared EMPTY = new Declared(ImmutableList.of());
34
35         Declared(final ImmutableList<? extends DeclaredStatement<?>> substatements) {
36             super(substatements);
37         }
38     }
39
40     private static final class Effective extends UnknownEffectiveStatementBase<Empty, DefaultDenyWriteStatement>
41             implements DefaultDenyWriteEffectiveStatement, DefaultDenyWriteSchemaNode {
42         private final @NonNull Object path;
43
44         Effective(final Current<Empty, DefaultDenyWriteStatement> stmt,
45                 final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
46             super(stmt, substatements);
47             path = SchemaPathSupport.toEffectivePath(stmt.getEffectiveParent().getSchemaPath()
48                     .createChild(stmt.publicDefinition().getStatementName()));
49         }
50
51         @Override
52         public QName getQName() {
53             return SchemaPathSupport.extractQName(path);
54         }
55
56         @Override
57         @Deprecated
58         public SchemaPath getPath() {
59             return SchemaPathSupport.extractPath(this, path);
60         }
61
62         @Override
63         public DefaultDenyWriteEffectiveStatement asEffectiveStatement() {
64             return this;
65         }
66     }
67
68     private static final DefaultDenyWriteStatementSupport INSTANCE =
69             new DefaultDenyWriteStatementSupport(NACMStatements.DEFAULT_DENY_WRITE);
70
71     private final SubstatementValidator validator;
72
73     DefaultDenyWriteStatementSupport(final StatementDefinition definition) {
74         super(definition, StatementPolicy.contextIndependent());
75         this.validator = SubstatementValidator.builder(definition).build();
76     }
77
78     public static DefaultDenyWriteStatementSupport getInstance() {
79         return INSTANCE;
80     }
81
82     @Override
83     protected SubstatementValidator getSubstatementValidator() {
84         return validator;
85     }
86
87     @Override
88     protected DefaultDenyWriteStatement createDeclared(final StmtContext<Empty, DefaultDenyWriteStatement, ?> ctx,
89             final ImmutableList<? extends DeclaredStatement<?>> substatements) {
90         return new Declared(substatements);
91     }
92
93     @Override
94     protected DefaultDenyWriteStatement createEmptyDeclared(
95             final StmtContext<Empty, DefaultDenyWriteStatement, ?> ctx) {
96         return Declared.EMPTY;
97     }
98
99     @Override
100     protected DefaultDenyWriteEffectiveStatement createEffective(final Current<Empty, DefaultDenyWriteStatement> stmt,
101             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
102         return new Effective(stmt, substatements);
103     }
104 }