2 * Copyright (c) 2013 Cisco Systems, Inc. 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.mdsal.binding.maven.api.gen.plugin;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.base.Joiner;
13 import com.google.common.collect.ImmutableSet;
14 import com.google.common.collect.ImmutableSet.Builder;
15 import com.google.common.collect.Table;
16 import com.google.common.collect.Table.Cell;
17 import com.google.common.io.Files;
18 import java.io.BufferedWriter;
20 import java.io.IOException;
21 import java.io.OutputStream;
22 import java.io.OutputStreamWriter;
23 import java.io.Writer;
24 import java.nio.charset.StandardCharsets;
25 import java.util.ArrayList;
26 import java.util.Collection;
27 import java.util.List;
29 import java.util.Optional;
31 import java.util.function.Function;
32 import java.util.function.Supplier;
33 import org.apache.maven.project.MavenProject;
34 import org.opendaylight.mdsal.binding.generator.impl.BindingGeneratorImpl;
35 import org.opendaylight.mdsal.binding.java.api.generator.GeneratorJavaFile;
36 import org.opendaylight.mdsal.binding.java.api.generator.GeneratorJavaFile.FileKind;
37 import org.opendaylight.mdsal.binding.java.api.generator.YangModuleInfoTemplate;
38 import org.opendaylight.mdsal.binding.model.api.Type;
39 import org.opendaylight.mdsal.binding.spec.naming.BindingMapping;
40 import org.opendaylight.yangtools.yang.binding.YangModelBindingProvider;
41 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
42 import org.opendaylight.yangtools.yang.model.api.Module;
43 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
44 import org.opendaylight.yangtools.yang2sources.spi.BasicCodeGenerator;
45 import org.opendaylight.yangtools.yang2sources.spi.BuildContextAware;
46 import org.opendaylight.yangtools.yang2sources.spi.MavenProjectAware;
47 import org.slf4j.Logger;
48 import org.slf4j.LoggerFactory;
49 import org.sonatype.plexus.build.incremental.BuildContext;
51 public final class CodeGeneratorImpl implements BasicCodeGenerator, BuildContextAware, MavenProjectAware {
52 public static final String CONFIG_PERSISTENT_SOURCES_DIR = "persistentSourcesDir";
53 public static final String CONFIG_IGNORE_DUPLICATE_FILES = "ignoreDuplicateFiles";
55 private static final Logger LOG = LoggerFactory.getLogger(CodeGeneratorImpl.class);
56 private static final String FS = File.separator;
57 private BuildContext buildContext;
58 private File projectBaseDir;
59 private Map<String, String> additionalConfig;
60 private MavenProject mavenProject;
61 private File resourceBaseDir;
64 public Collection<File> generateSources(final EffectiveModelContext context, final File outputDir,
65 final Set<Module> yangModules, final Function<Module, Optional<String>> moduleResourcePathResolver)
67 final File outputBaseDir;
69 outputBaseDir = outputDir == null ? getDefaultOutputBaseDir() : outputDir;
71 final List<Type> types = new BindingGeneratorImpl().generateTypes(context, yangModules);
72 final GeneratorJavaFile generator = new GeneratorJavaFile(types);
74 File persistentSourcesDir = null;
75 boolean ignoreDuplicateFiles = true;
76 if (additionalConfig != null) {
77 String persistenSourcesPath = additionalConfig.get(CONFIG_PERSISTENT_SOURCES_DIR);
78 if (persistenSourcesPath != null) {
79 persistentSourcesDir = new File(persistenSourcesPath);
81 String ignoreDuplicateFilesString = additionalConfig.get(CONFIG_IGNORE_DUPLICATE_FILES);
82 if (ignoreDuplicateFilesString != null) {
83 ignoreDuplicateFiles = Boolean.parseBoolean(ignoreDuplicateFilesString);
86 if (persistentSourcesDir == null) {
87 persistentSourcesDir = new File(projectBaseDir, "src" + FS + "main" + FS + "java");
90 final Table<FileKind, String, Supplier<String>> generatedFiles = generator.generateFileContent(
91 ignoreDuplicateFiles);
92 final List<File> result = new ArrayList<>(generatedFiles.size());
93 for (Cell<FileKind, String, Supplier<String>> cell : generatedFiles.cellSet()) {
95 switch (cell.getRowKey()) {
97 target = new File(persistentSourcesDir, cell.getColumnKey());
98 if (target.exists()) {
99 LOG.debug("Skipping existing persistent {}", target);
104 target = new File(outputBaseDir, cell.getColumnKey());
107 throw new IllegalStateException("Unsupported file type in " + cell);
110 Files.createParentDirs(target);
111 try (OutputStream stream = buildContext.newFileOutputStream(target)) {
112 try (Writer fw = new OutputStreamWriter(stream, StandardCharsets.UTF_8)) {
113 try (BufferedWriter bw = new BufferedWriter(fw)) {
114 bw.write(cell.getValue().get());
116 } catch (IOException e) {
117 LOG.error("Failed to write generate output into {}", target.getPath(), e);
125 result.addAll(generateModuleInfos(outputBaseDir, yangModules, context, moduleResourcePathResolver));
129 private Collection<? extends File> generateModuleInfos(final File outputBaseDir, final Set<Module> yangModules,
130 final SchemaContext context, final Function<Module, Optional<String>> moduleResourcePathResolver) {
131 Builder<File> result = ImmutableSet.builder();
132 Builder<String> bindingProviders = ImmutableSet.builder();
133 for (Module module : yangModules) {
134 Builder<String> currentProvidersBuilder = ImmutableSet.builder();
135 // TODO: do not mutate parameters, output of a method is defined by its return value
136 Set<File> moduleInfoProviders = generateYangModuleInfo(outputBaseDir, module, context,
137 moduleResourcePathResolver, currentProvidersBuilder);
138 ImmutableSet<String> currentProviders = currentProvidersBuilder.build();
139 LOG.debug("Adding ModuleInfo providers {}", currentProviders);
140 bindingProviders.addAll(currentProviders);
141 result.addAll(moduleInfoProviders);
144 result.add(writeMetaInfServices(resourceBaseDir, YangModelBindingProvider.class, bindingProviders.build()));
145 return result.build();
148 private File writeMetaInfServices(final File outputBaseDir, final Class<YangModelBindingProvider> serviceClass,
149 final ImmutableSet<String> services) {
150 File metainfServicesFolder = new File(outputBaseDir, "META-INF" + File.separator + "services");
151 metainfServicesFolder.mkdirs();
152 File serviceFile = new File(metainfServicesFolder, serviceClass.getName());
154 String src = Joiner.on('\n').join(services);
156 return writeFile(serviceFile, src);
159 public static final String DEFAULT_OUTPUT_BASE_DIR_PATH = "target" + File.separator + "generated-sources"
160 + File.separator + "maven-sal-api-gen";
162 private File getDefaultOutputBaseDir() {
164 outputBaseDir = new File(DEFAULT_OUTPUT_BASE_DIR_PATH);
165 setOutputBaseDirAsSourceFolder(outputBaseDir, mavenProject);
166 LOG.debug("Adding {} as compile source root", outputBaseDir.getPath());
167 return outputBaseDir;
170 private static void setOutputBaseDirAsSourceFolder(final File outputBaseDir, final MavenProject mavenProject) {
171 requireNonNull(mavenProject, "Maven project needs to be set in this phase");
172 mavenProject.addCompileSourceRoot(outputBaseDir.getPath());
176 public void setAdditionalConfig(final Map<String, String> additionalConfiguration) {
177 this.additionalConfig = additionalConfiguration;
181 public void setResourceBaseDir(final File resourceBaseDir) {
182 this.resourceBaseDir = resourceBaseDir;
186 public void setMavenProject(final MavenProject project) {
187 this.mavenProject = project;
188 this.projectBaseDir = project.getBasedir();
192 public void setBuildContext(final BuildContext buildContext) {
193 this.buildContext = requireNonNull(buildContext);
196 private Set<File> generateYangModuleInfo(final File outputBaseDir, final Module module, final SchemaContext ctx,
197 final Function<Module, Optional<String>> moduleResourcePathResolver,
198 final Builder<String> providerSourceSet) {
199 Builder<File> generatedFiles = ImmutableSet.builder();
201 final YangModuleInfoTemplate template = new YangModuleInfoTemplate(module, ctx, moduleResourcePathResolver);
202 String moduleInfoSource = template.generate();
203 if (moduleInfoSource.isEmpty()) {
204 throw new IllegalStateException("Generated code should not be empty!");
206 String providerSource = template.generateModelProvider();
208 final File packageDir = GeneratorJavaFile.packageToDirectory(outputBaseDir,
209 BindingMapping.getRootPackageName(module.getQNameModule()));
211 generatedFiles.add(writeJavaSource(packageDir, BindingMapping.MODULE_INFO_CLASS_NAME, moduleInfoSource));
213 .add(writeJavaSource(packageDir, BindingMapping.MODEL_BINDING_PROVIDER_CLASS_NAME, providerSource));
214 providerSourceSet.add(template.getModelBindingProviderName());
216 return generatedFiles.build();
220 private File writeJavaSource(final File packageDir, final String className, final String source) {
221 if (!packageDir.exists()) {
224 final File file = new File(packageDir, className + ".java");
225 writeFile(file, source);
229 @SuppressWarnings("checkstyle:illegalCatch")
230 private File writeFile(final File file, final String source) {
231 try (OutputStream stream = buildContext.newFileOutputStream(file)) {
232 try (Writer fw = new OutputStreamWriter(stream, StandardCharsets.UTF_8)) {
233 try (BufferedWriter bw = new BufferedWriter(fw)) {
236 } catch (Exception e) {
237 LOG.error("Could not write file: {}", file, e);
239 } catch (Exception e) {
240 LOG.error("Could not create file: {}", file, e);