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 com.google.common.base.Joiner;
11 import com.google.common.base.Preconditions;
12 import com.google.common.collect.ImmutableSet;
13 import com.google.common.collect.ImmutableSet.Builder;
14 import java.io.BufferedWriter;
16 import java.io.IOException;
17 import java.io.OutputStream;
18 import java.io.OutputStreamWriter;
19 import java.io.Writer;
20 import java.nio.charset.StandardCharsets;
21 import java.util.Collection;
22 import java.util.List;
24 import java.util.Optional;
26 import java.util.function.Function;
27 import org.apache.maven.project.MavenProject;
28 import org.opendaylight.mdsal.binding.generator.api.BindingGenerator;
29 import org.opendaylight.mdsal.binding.generator.impl.BindingGeneratorImpl;
30 import org.opendaylight.mdsal.binding.java.api.generator.GeneratorJavaFile;
31 import org.opendaylight.mdsal.binding.java.api.generator.YangModuleInfoTemplate;
32 import org.opendaylight.mdsal.binding.model.api.Type;
33 import org.opendaylight.mdsal.binding.model.util.BindingGeneratorUtil;
34 import org.opendaylight.yangtools.yang.binding.BindingMapping;
35 import org.opendaylight.yangtools.yang.binding.YangModelBindingProvider;
36 import org.opendaylight.yangtools.yang.model.api.Module;
37 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
38 import org.opendaylight.yangtools.yang2sources.spi.BasicCodeGenerator;
39 import org.opendaylight.yangtools.yang2sources.spi.BuildContextAware;
40 import org.opendaylight.yangtools.yang2sources.spi.MavenProjectAware;
41 import org.slf4j.Logger;
42 import org.slf4j.LoggerFactory;
43 import org.sonatype.plexus.build.incremental.BuildContext;
45 public final class CodeGeneratorImpl implements BasicCodeGenerator, BuildContextAware, MavenProjectAware {
46 private static final Logger LOG = LoggerFactory.getLogger(CodeGeneratorImpl.class);
47 private static final String FS = File.separator;
48 private BuildContext buildContext;
49 private File projectBaseDir;
50 private Map<String, String> additionalConfig;
51 private MavenProject mavenProject;
52 private File resourceBaseDir;
55 public Collection<File> generateSources(final SchemaContext context, final File outputBaseDir,
56 final Set<Module> currentModules) throws IOException {
57 return generateSources(context, outputBaseDir, currentModules,
58 module -> Optional.of("/" + module.getModuleSourcePath().replace(File.separator, "/")));
62 public Collection<File> generateSources(final SchemaContext context, final File outputDir,
63 final Set<Module> yangModules, final Function<Module, Optional<String>> moduleResourcePathResolver)
65 final File outputBaseDir;
67 outputBaseDir = outputDir == null ? getDefaultOutputBaseDir() : outputDir;
69 final BindingGenerator bindingGenerator = new BindingGeneratorImpl(true);
70 final List<Type> types = bindingGenerator.generateTypes(context, yangModules);
71 final GeneratorJavaFile generator = new GeneratorJavaFile(buildContext, types);
73 File persistentSourcesDir = null;
74 if (additionalConfig != null) {
75 String persistenSourcesPath = additionalConfig.get("persistentSourcesDir");
76 if (persistenSourcesPath != null) {
77 persistentSourcesDir = new File(persistenSourcesPath);
80 if (persistentSourcesDir == null) {
81 persistentSourcesDir = new File(projectBaseDir, "src" + FS + "main" + FS + "java");
84 List<File> result = generator.generateToFile(outputBaseDir, persistentSourcesDir);
86 result.addAll(generateModuleInfos(outputBaseDir, yangModules, context, moduleResourcePathResolver));
90 private Collection<? extends File> generateModuleInfos(final File outputBaseDir, final Set<Module> yangModules,
91 final SchemaContext context, final Function<Module, Optional<String>> moduleResourcePathResolver) {
92 Builder<File> result = ImmutableSet.builder();
93 Builder<String> bindingProviders = ImmutableSet.builder();
94 for (Module module : yangModules) {
95 Builder<String> currentProvidersBuilder = ImmutableSet.builder();
96 // TODO: do not mutate parameters, output of a method is defined by its return value
97 Set<File> moduleInfoProviders = generateYangModuleInfo(outputBaseDir, module, context,
98 moduleResourcePathResolver, currentProvidersBuilder);
99 ImmutableSet<String> currentProviders = currentProvidersBuilder.build();
100 LOG.info("Adding ModuleInfo providers {}", currentProviders);
101 bindingProviders.addAll(currentProviders);
102 result.addAll(moduleInfoProviders);
105 result.add(writeMetaInfServices(resourceBaseDir, YangModelBindingProvider.class, bindingProviders.build()));
106 return result.build();
109 private File writeMetaInfServices(final File outputBaseDir, final Class<YangModelBindingProvider> serviceClass,
110 final ImmutableSet<String> services) {
111 File metainfServicesFolder = new File(outputBaseDir, "META-INF" + File.separator + "services");
112 metainfServicesFolder.mkdirs();
113 File serviceFile = new File(metainfServicesFolder, serviceClass.getName());
115 String src = Joiner.on('\n').join(services);
117 return writeFile(serviceFile, src);
120 public static final String DEFAULT_OUTPUT_BASE_DIR_PATH = "target" + File.separator + "generated-sources"
121 + File.separator + "maven-sal-api-gen";
123 private File getDefaultOutputBaseDir() {
125 outputBaseDir = new File(DEFAULT_OUTPUT_BASE_DIR_PATH);
126 setOutputBaseDirAsSourceFolder(outputBaseDir, mavenProject);
127 LOG.debug("Adding " + outputBaseDir.getPath() + " as compile source root");
128 return outputBaseDir;
131 private static void setOutputBaseDirAsSourceFolder(final File outputBaseDir, final MavenProject mavenProject) {
132 Preconditions.checkNotNull(mavenProject, "Maven project needs to be set in this phase");
133 mavenProject.addCompileSourceRoot(outputBaseDir.getPath());
137 public void setAdditionalConfig(final Map<String, String> additionalConfiguration) {
138 this.additionalConfig = additionalConfiguration;
142 public void setResourceBaseDir(final File resourceBaseDir) {
143 this.resourceBaseDir = resourceBaseDir;
147 public void setMavenProject(final MavenProject project) {
148 this.mavenProject = project;
149 this.projectBaseDir = project.getBasedir();
153 public void setBuildContext(final BuildContext buildContext) {
154 this.buildContext = Preconditions.checkNotNull(buildContext);
157 private Set<File> generateYangModuleInfo(final File outputBaseDir, final Module module, final SchemaContext ctx,
158 final Function<Module, Optional<String>> moduleResourcePathResolver,
159 final Builder<String> providerSourceSet) {
160 Builder<File> generatedFiles = ImmutableSet.builder();
162 final YangModuleInfoTemplate template = new YangModuleInfoTemplate(module, ctx, moduleResourcePathResolver);
163 String moduleInfoSource = template.generate();
164 if (moduleInfoSource.isEmpty()) {
165 throw new IllegalStateException("Generated code should not be empty!");
167 String providerSource = template.generateModelProvider();
169 final File packageDir = GeneratorJavaFile.packageToDirectory(outputBaseDir,
170 BindingGeneratorUtil.moduleNamespaceToPackageName(module));
172 generatedFiles.add(writeJavaSource(packageDir, BindingMapping.MODULE_INFO_CLASS_NAME, moduleInfoSource));
174 .add(writeJavaSource(packageDir, BindingMapping.MODEL_BINDING_PROVIDER_CLASS_NAME, providerSource));
175 providerSourceSet.add(template.getModelBindingProviderName());
177 return generatedFiles.build();
181 private File writeJavaSource(final File packageDir, final String className, final String source) {
182 if (!packageDir.exists()) {
185 final File file = new File(packageDir, className + ".java");
186 writeFile(file, source);
190 @SuppressWarnings("checkstyle:illegalCatch")
191 private File writeFile(final File file, final String source) {
192 try (OutputStream stream = buildContext.newFileOutputStream(file)) {
193 try (Writer fw = new OutputStreamWriter(stream, StandardCharsets.UTF_8)) {
194 try (BufferedWriter bw = new BufferedWriter(fw)) {
197 } catch (Exception e) {
198 LOG.error("Could not write file: {}",file,e);
200 } catch (Exception e) {
201 LOG.error("Could not create file: {}",file,e);