1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/*
* ============LICENSE_START=======================================================
* Copyright (C) 2020 Pantheon.tech
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.cps.yang;
import com.google.common.base.MoreObjects;
import com.google.common.collect.ImmutableMap;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import org.onap.cps.spi.exceptions.CpsException;
import org.onap.cps.spi.model.ModuleReference;
import org.opendaylight.yangtools.yang.common.Revision;
import org.opendaylight.yangtools.yang.common.YangNames;
import org.opendaylight.yangtools.yang.model.api.Module;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;
import org.opendaylight.yangtools.yang.model.parser.api.YangSyntaxErrorException;
import org.opendaylight.yangtools.yang.model.repo.api.RevisionSourceIdentifier;
import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
import org.opendaylight.yangtools.yang.parser.rfc7950.reactor.RFC7950Reactors;
import org.opendaylight.yangtools.yang.parser.rfc7950.repo.YangStatementStreamSource;
import org.opendaylight.yangtools.yang.parser.spi.meta.ReactorException;
import org.opendaylight.yangtools.yang.parser.stmt.reactor.CrossSourceStatementReactor;
public final class YangTextSchemaSourceSetBuilder {
private final ImmutableMap.Builder<String, String> yangModelMap = new ImmutableMap.Builder<>();
public YangTextSchemaSourceSetBuilder() {
}
public YangTextSchemaSourceSetBuilder put(final String fileName, final String content) {
this.yangModelMap.put(fileName, content);
return this;
}
public YangTextSchemaSourceSetBuilder putAll(final Map<String, String> yangResourceNameToContent) {
this.yangModelMap.putAll(yangResourceNameToContent);
return this;
}
public YangTextSchemaSourceSet build() throws ReactorException, YangSyntaxErrorException {
final SchemaContext schemaContext = generateSchemaContext(yangModelMap.build());
return new YangTextSchemaSourceSetImpl(schemaContext);
}
public static YangTextSchemaSourceSet of(final Map<String, String> yangResourceNameToContent)
throws ReactorException, YangSyntaxErrorException {
return new YangTextSchemaSourceSetBuilder().putAll(yangResourceNameToContent).build();
}
private static class YangTextSchemaSourceSetImpl implements YangTextSchemaSourceSet {
private final SchemaContext schemaContext;
public YangTextSchemaSourceSetImpl(final SchemaContext schemaContext) {
this.schemaContext = schemaContext;
}
@Override
public List<ModuleReference> getModuleReferences() {
return schemaContext.getModules().stream()
.map(YangTextSchemaSourceSetImpl::toModuleReference)
.collect(Collectors.toList());
}
private static ModuleReference toModuleReference(final Module module) {
return ModuleReference.builder()
.namespace(module.getName())
.revision(module.getRevision().map(Revision::toString).orElse(null))
.build();
}
@Override
public SchemaContext getSchemaContext() {
return schemaContext;
}
}
/**
* Parse and validate a string representing a yang model to generate a SchemaContext context.
*
* @param yangResourceNameToContent is a {@link Map} collection that contains the name of the model represented
* on yangModelContent as key and the yangModelContent as value.
* @return the schema context
*/
private SchemaContext generateSchemaContext(final Map<String, String> yangResourceNameToContent)
throws ReactorException, YangSyntaxErrorException {
final CrossSourceStatementReactor.BuildAction reactor = RFC7950Reactors.defaultReactor().newBuild();
final List<YangTextSchemaSource> yangTextSchemaSources = forResources(yangResourceNameToContent);
for (final YangTextSchemaSource yangTextSchemaSource : yangTextSchemaSources) {
try {
reactor.addSource(YangStatementStreamSource.create(yangTextSchemaSource));
} catch (final IOException e) {
throw new CpsException("Failed to read yangTextSchemaSource %s.",
yangTextSchemaSource.getIdentifier().getName(), e);
}
}
return reactor.buildEffective();
}
private List<YangTextSchemaSource> forResources(final Map<String, String> yangResourceNameToContent) {
return yangResourceNameToContent.entrySet().stream()
.map(entry -> toYangTextSchemaSource(entry.getKey(), entry.getValue()))
.collect(Collectors.toList());
}
private YangTextSchemaSource toYangTextSchemaSource(final String sourceName, final String source) {
final Map.Entry<String, String> sourceNameParsed = YangNames.parseFilename(sourceName);
final RevisionSourceIdentifier revisionSourceIdentifier = RevisionSourceIdentifier
.create(sourceNameParsed.getKey(), Revision.ofNullable(sourceNameParsed.getValue()));
return new YangTextSchemaSource(revisionSourceIdentifier) {
@Override
protected MoreObjects.ToStringHelper addToStringAttributes(
final MoreObjects.ToStringHelper toStringHelper) {
return toStringHelper;
}
@Override
public InputStream openStream() {
return new ByteArrayInputStream(source.getBytes());
}
};
}
}
|
