Create all effective statements path Nullable
[yangtools.git] / yang / rfc8040-parser-support / src / main / java / org / opendaylight / yangtools / rfc8040 / parser / YangDataEffectiveStatementImpl.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.rfc8040.parser;
9
10 import com.google.common.annotations.Beta;
11 import com.google.common.base.MoreObjects;
12 import com.google.common.base.Verify;
13 import com.google.common.collect.ImmutableList;
14 import org.eclipse.jdt.annotation.NonNull;
15 import org.eclipse.jdt.annotation.Nullable;
16 import org.opendaylight.yangtools.rfc8040.model.api.YangDataEffectiveStatement;
17 import org.opendaylight.yangtools.rfc8040.model.api.YangDataSchemaNode;
18 import org.opendaylight.yangtools.rfc8040.model.api.YangDataStatement;
19 import org.opendaylight.yangtools.yang.common.QName;
20 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
21 import org.opendaylight.yangtools.yang.model.api.SchemaNodeDefaults;
22 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
23 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
24 import org.opendaylight.yangtools.yang.model.api.stmt.ContainerEffectiveStatement;
25 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.UnknownEffectiveStatementBase;
26 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
27 import org.opendaylight.yangtools.yang.parser.spi.meta.SchemaPathSupport;
28 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
29
30 @Beta
31 final class YangDataEffectiveStatementImpl extends UnknownEffectiveStatementBase<String, YangDataStatement>
32         implements YangDataEffectiveStatement, YangDataSchemaNode {
33
34     private final @Nullable SchemaPath path;
35     private final @NonNull QName maybeQNameArgument;
36     private final @NonNull ContainerEffectiveStatement container;
37
38     YangDataEffectiveStatementImpl(final Current<String, YangDataStatement> stmt,
39              final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
40         super(stmt, substatements);
41
42         QName maybeQNameArgumentInit;
43         try {
44             maybeQNameArgumentInit = StmtContextUtils.parseIdentifier(stmt.caerbannog(), argument());
45         } catch (IllegalArgumentException e) {
46             maybeQNameArgumentInit = getNodeType();
47         }
48         this.maybeQNameArgument = maybeQNameArgumentInit;
49
50         path = SchemaPathSupport.wrap(stmt.getEffectiveParent().getSchemaPath().createChild(maybeQNameArgument));
51         container = findFirstEffectiveSubstatement(ContainerEffectiveStatement.class).get();
52
53         // TODO: this is strong binding of two API contracts. Unfortunately ContainerEffectiveStatement design is
54         //       incomplete.
55         Verify.verify(container instanceof ContainerSchemaNode);
56     }
57
58     @Override
59     public @NonNull QName getQName() {
60         return maybeQNameArgument;
61     }
62
63     @Override
64     @Deprecated
65     public SchemaPath getPath() {
66         return SchemaNodeDefaults.throwUnsupportedIfNull(this, path);
67     }
68
69     @Override
70     public ContainerEffectiveStatement getContainer() {
71         return container;
72     }
73
74     @Override
75     public ContainerSchemaNode getContainerSchemaNode() {
76         // Verified in the constructor
77         return (ContainerSchemaNode) container;
78     }
79
80     @Override
81     public YangDataEffectiveStatement asEffectiveStatement() {
82         return this;
83     }
84
85     @Override
86     public String toString() {
87         return MoreObjects.toStringHelper(this).omitNullValues()
88                 .add("qname", maybeQNameArgument)
89                 .add("path", path)
90                 .add("container", container).toString();
91     }
92 }