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.java.api.generator.YangTemplate;
33 import org.opendaylight.mdsal.binding.model.api.Type;
34 import org.opendaylight.mdsal.binding.model.util.BindingGeneratorUtil;
35 import org.opendaylight.yangtools.yang.binding.BindingMapping;
36 import org.opendaylight.yangtools.yang.binding.YangModelBindingProvider;
37 import org.opendaylight.yangtools.yang.model.api.Module;
38 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
39 import org.opendaylight.yangtools.yang2sources.spi.BasicCodeGenerator;
40 import org.opendaylight.yangtools.yang2sources.spi.BuildContextAware;
41 import org.opendaylight.yangtools.yang2sources.spi.MavenProjectAware;
42 import org.slf4j.Logger;
43 import org.slf4j.LoggerFactory;
44 import org.sonatype.plexus.build.incremental.BuildContext;
46 public final class CodeGeneratorImpl implements BasicCodeGenerator, BuildContextAware, MavenProjectAware {
47 private static final Logger LOG = LoggerFactory.getLogger(CodeGeneratorImpl.class);
48 private static final String FS = File.separator;
49 private BuildContext buildContext;
50 private File projectBaseDir;
51 private Map<String, String> additionalConfig;
52 private MavenProject mavenProject;
53 private File resourceBaseDir;
56 public Collection<File> generateSources(final SchemaContext context, final File outputDir,
57 final Set<Module> yangModules, final Function<Module, Optional<String>> moduleResourcePathResolver)
59 final File outputBaseDir;
61 outputBaseDir = outputDir == null ? getDefaultOutputBaseDir() : outputDir;
63 final BindingGenerator bindingGenerator = new BindingGeneratorImpl(YangTemplate.getInstance());
64 final List<Type> types = bindingGenerator.generateTypes(context, yangModules);
65 final GeneratorJavaFile generator = new GeneratorJavaFile(buildContext, types);
67 File persistentSourcesDir = null;
68 if (additionalConfig != null) {
69 String persistenSourcesPath = additionalConfig.get("persistentSourcesDir");
70 if (persistenSourcesPath != null) {
71 persistentSourcesDir = new File(persistenSourcesPath);
74 if (persistentSourcesDir == null) {
75 persistentSourcesDir = new File(projectBaseDir, "src" + FS + "main" + FS + "java");
78 List<File> result = generator.generateToFile(outputBaseDir, persistentSourcesDir);
80 result.addAll(generateModuleInfos(outputBaseDir, yangModules, context, moduleResourcePathResolver));
84 private Collection<? extends File> generateModuleInfos(final File outputBaseDir, final Set<Module> yangModules,
85 final SchemaContext context, final Function<Module, Optional<String>> moduleResourcePathResolver) {
86 Builder<File> result = ImmutableSet.builder();
87 Builder<String> bindingProviders = ImmutableSet.builder();
88 for (Module module : yangModules) {
89 Builder<String> currentProvidersBuilder = ImmutableSet.builder();
90 // TODO: do not mutate parameters, output of a method is defined by its return value
91 Set<File> moduleInfoProviders = generateYangModuleInfo(outputBaseDir, module, context,
92 moduleResourcePathResolver, currentProvidersBuilder);
93 ImmutableSet<String> currentProviders = currentProvidersBuilder.build();
94 LOG.info("Adding ModuleInfo providers {}", currentProviders);
95 bindingProviders.addAll(currentProviders);
96 result.addAll(moduleInfoProviders);
99 result.add(writeMetaInfServices(resourceBaseDir, YangModelBindingProvider.class, bindingProviders.build()));
100 return result.build();
103 private File writeMetaInfServices(final File outputBaseDir, final Class<YangModelBindingProvider> serviceClass,
104 final ImmutableSet<String> services) {
105 File metainfServicesFolder = new File(outputBaseDir, "META-INF" + File.separator + "services");
106 metainfServicesFolder.mkdirs();
107 File serviceFile = new File(metainfServicesFolder, serviceClass.getName());
109 String src = Joiner.on('\n').join(services);
111 return writeFile(serviceFile, src);
114 public static final String DEFAULT_OUTPUT_BASE_DIR_PATH = "target" + File.separator + "generated-sources"
115 + File.separator + "maven-sal-api-gen";
117 private File getDefaultOutputBaseDir() {
119 outputBaseDir = new File(DEFAULT_OUTPUT_BASE_DIR_PATH);
120 setOutputBaseDirAsSourceFolder(outputBaseDir, mavenProject);
121 LOG.debug("Adding " + outputBaseDir.getPath() + " as compile source root");
122 return outputBaseDir;
125 private static void setOutputBaseDirAsSourceFolder(final File outputBaseDir, final MavenProject mavenProject) {
126 Preconditions.checkNotNull(mavenProject, "Maven project needs to be set in this phase");
127 mavenProject.addCompileSourceRoot(outputBaseDir.getPath());
131 public void setAdditionalConfig(final Map<String, String> additionalConfiguration) {
132 this.additionalConfig = additionalConfiguration;
136 public void setResourceBaseDir(final File resourceBaseDir) {
137 this.resourceBaseDir = resourceBaseDir;
141 public void setMavenProject(final MavenProject project) {
142 this.mavenProject = project;
143 this.projectBaseDir = project.getBasedir();
147 public void setBuildContext(final BuildContext buildContext) {
148 this.buildContext = Preconditions.checkNotNull(buildContext);
151 private Set<File> generateYangModuleInfo(final File outputBaseDir, final Module module, final SchemaContext ctx,
152 final Function<Module, Optional<String>> moduleResourcePathResolver,
153 final Builder<String> providerSourceSet) {
154 Builder<File> generatedFiles = ImmutableSet.builder();
156 final YangModuleInfoTemplate template = new YangModuleInfoTemplate(module, ctx, moduleResourcePathResolver);
157 String moduleInfoSource = template.generate();
158 if (moduleInfoSource.isEmpty()) {
159 throw new IllegalStateException("Generated code should not be empty!");
161 String providerSource = template.generateModelProvider();
163 final File packageDir = GeneratorJavaFile.packageToDirectory(outputBaseDir,
164 BindingGeneratorUtil.moduleNamespaceToPackageName(module));
166 generatedFiles.add(writeJavaSource(packageDir, BindingMapping.MODULE_INFO_CLASS_NAME, moduleInfoSource));
168 .add(writeJavaSource(packageDir, BindingMapping.MODEL_BINDING_PROVIDER_CLASS_NAME, providerSource));
169 providerSourceSet.add(template.getModelBindingProviderName());
171 return generatedFiles.build();
175 private File writeJavaSource(final File packageDir, final String className, final String source) {
176 if (!packageDir.exists()) {
179 final File file = new File(packageDir, className + ".java");
180 writeFile(file, source);
184 @SuppressWarnings("checkstyle:illegalCatch")
185 private File writeFile(final File file, final String source) {
186 try (OutputStream stream = buildContext.newFileOutputStream(file)) {
187 try (Writer fw = new OutputStreamWriter(stream, StandardCharsets.UTF_8)) {
188 try (BufferedWriter bw = new BufferedWriter(fw)) {
191 } catch (Exception e) {
192 LOG.error("Could not write file: {}",file,e);
194 } catch (Exception e) {
195 LOG.error("Could not create file: {}",file,e);