2 * Copyright (c) 2021 PANTHEON.tech, s.r.o. and others. All rights reserved.
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
8 package org.opendaylight.yangtools.yang.parser.impl;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.collect.ImmutableList;
13 import com.google.common.collect.SetMultimap;
14 import java.io.IOException;
15 import java.util.Collection;
16 import java.util.List;
17 import javax.xml.transform.TransformerException;
18 import org.eclipse.jdt.annotation.NonNull;
19 import org.opendaylight.yangtools.yang.common.QNameModule;
20 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
21 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
22 import org.opendaylight.yangtools.yang.model.api.stmt.FeatureSet;
23 import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceRepresentation;
24 import org.opendaylight.yangtools.yang.model.repo.api.YangIRSchemaSource;
25 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
26 import org.opendaylight.yangtools.yang.model.repo.api.YinDomSchemaSource;
27 import org.opendaylight.yangtools.yang.model.repo.api.YinTextSchemaSource;
28 import org.opendaylight.yangtools.yang.model.repo.api.YinXmlSchemaSource;
29 import org.opendaylight.yangtools.yang.parser.api.YangParser;
30 import org.opendaylight.yangtools.yang.parser.api.YangParserException;
31 import org.opendaylight.yangtools.yang.parser.api.YangSyntaxErrorException;
32 import org.opendaylight.yangtools.yang.parser.rfc7950.repo.YangStatementStreamSource;
33 import org.opendaylight.yangtools.yang.parser.rfc7950.repo.YinStatementStreamSource;
34 import org.opendaylight.yangtools.yang.parser.rfc7950.repo.YinTextToDomTransformer;
35 import org.opendaylight.yangtools.yang.parser.spi.meta.ReactorException;
36 import org.opendaylight.yangtools.yang.parser.spi.source.StatementStreamSource;
37 import org.opendaylight.yangtools.yang.parser.stmt.reactor.CrossSourceStatementReactor.BuildAction;
38 import org.xml.sax.SAXException;
40 final class DefaultYangParser implements YangParser {
41 static final @NonNull Collection<Class<? extends SchemaSourceRepresentation>> REPRESENTATIONS =
42 ImmutableList.of(YangIRSchemaSource.class, YangTextSchemaSource.class, YinDomSchemaSource.class,
43 YinXmlSchemaSource.class, YinTextSchemaSource.class);
45 private final BuildAction buildAction;
47 DefaultYangParser(final BuildAction buildAction) {
48 this.buildAction = requireNonNull(buildAction);
52 public @NonNull Collection<Class<? extends SchemaSourceRepresentation>> supportedSourceRepresentations() {
53 return REPRESENTATIONS;
57 public @NonNull YangParser addSource(final SchemaSourceRepresentation source) throws IOException,
58 YangSyntaxErrorException {
59 buildAction.addSource(sourceToStatementStream(source));
64 public @NonNull YangParser addLibSource(final SchemaSourceRepresentation source) throws IOException,
65 YangSyntaxErrorException {
66 buildAction.addLibSource(sourceToStatementStream(source));
71 public @NonNull YangParser setSupportedFeatures(final FeatureSet supportedFeatures) {
72 buildAction.setSupportedFeatures(supportedFeatures);
77 public @NonNull YangParser setModulesWithSupportedDeviations(
78 final SetMultimap<QNameModule, QNameModule> modulesDeviatedByModules) {
79 buildAction.setModulesWithSupportedDeviations(modulesDeviatedByModules);
84 public @NonNull List<DeclaredStatement<?>> buildDeclaredModel() throws YangParserException {
86 return buildAction.build().getRootStatements();
87 } catch (ReactorException e) {
88 throw decodeReactorException(e);
93 public @NonNull EffectiveModelContext buildEffectiveModel() throws YangParserException {
95 return buildAction.buildEffective();
96 } catch (ReactorException e) {
97 throw decodeReactorException(e);
101 static YangParserException decodeReactorException(final ReactorException reported) {
102 // FIXME: map exception in some reasonable manner
103 return new YangParserException("Failed to assemble sources", reported);
106 static StatementStreamSource sourceToStatementStream(final SchemaSourceRepresentation source)
107 throws IOException, YangSyntaxErrorException {
108 requireNonNull(source);
109 if (source instanceof YangIRSchemaSource) {
110 return YangStatementStreamSource.create((YangIRSchemaSource) source);
111 } else if (source instanceof YangTextSchemaSource) {
112 return YangStatementStreamSource.create((YangTextSchemaSource) source);
113 } else if (source instanceof YinDomSchemaSource) {
114 return YinStatementStreamSource.create((YinDomSchemaSource) source);
115 } else if (source instanceof YinTextSchemaSource) {
117 return YinStatementStreamSource.create(YinTextToDomTransformer.transformSource(
118 (YinTextSchemaSource) source));
119 } catch (SAXException e) {
120 throw new YangSyntaxErrorException(source.getIdentifier(), 0, 0, "Failed to parse XML text", e);
122 } else if (source instanceof YinXmlSchemaSource) {
124 return YinStatementStreamSource.create((YinXmlSchemaSource) source);
125 } catch (TransformerException e) {
126 throw new YangSyntaxErrorException(source.getIdentifier(), 0, 0,
127 "Failed to assemble in-memory representation", e);
130 throw new IllegalArgumentException("Unsupported source " + source);