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.yangtools.maven.sal.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;
25 import org.apache.maven.project.MavenProject;
26 import org.opendaylight.yangtools.binding.generator.util.BindingGeneratorUtil;
27 import org.opendaylight.yangtools.sal.binding.generator.api.BindingGenerator;
28 import org.opendaylight.yangtools.sal.binding.generator.impl.BindingGeneratorImpl;
29 import org.opendaylight.yangtools.sal.binding.model.api.Type;
30 import org.opendaylight.yangtools.sal.java.api.generator.GeneratorJavaFile;
31 import org.opendaylight.yangtools.sal.java.api.generator.YangModuleInfoTemplate;
32 import org.opendaylight.yangtools.yang.binding.BindingMapping;
33 import org.opendaylight.yangtools.yang.binding.YangModelBindingProvider;
34 import org.opendaylight.yangtools.yang.model.api.Module;
35 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
36 import org.opendaylight.yangtools.yang2sources.spi.BasicCodeGenerator;
37 import org.opendaylight.yangtools.yang2sources.spi.BuildContextAware;
38 import org.opendaylight.yangtools.yang2sources.spi.MavenProjectAware;
39 import org.slf4j.Logger;
40 import org.slf4j.LoggerFactory;
41 import org.sonatype.plexus.build.incremental.BuildContext;
43 public final class CodeGeneratorImpl implements BasicCodeGenerator, BuildContextAware, MavenProjectAware {
44 private static final Logger LOG = LoggerFactory.getLogger(CodeGeneratorImpl.class);
45 private static final String FS = File.separator;
46 private BuildContext buildContext;
47 private File projectBaseDir;
48 private Map<String, String> additionalConfig;
49 private MavenProject mavenProject;
50 private File resourceBaseDir;
53 public Collection<File> generateSources(final SchemaContext context, final File outputDir,
54 final Set<Module> yangModules) throws IOException {
55 final File outputBaseDir;
57 outputBaseDir = outputDir == null ? getDefaultOutputBaseDir() : outputDir;
59 final BindingGenerator bindingGenerator = new BindingGeneratorImpl(true);
60 final List<Type> types = bindingGenerator.generateTypes(context, yangModules);
61 final GeneratorJavaFile generator = new GeneratorJavaFile(buildContext, types);
63 File persistentSourcesDir = null;
64 if (additionalConfig != null) {
65 String persistenSourcesPath = additionalConfig.get("persistentSourcesDir");
66 if (persistenSourcesPath != null) {
67 persistentSourcesDir = new File(persistenSourcesPath);
70 if (persistentSourcesDir == null) {
71 persistentSourcesDir = new File(projectBaseDir, "src" + FS + "main" + FS + "java");
74 List<File> result = generator.generateToFile(outputBaseDir, persistentSourcesDir);
76 result.addAll(generateModuleInfos(outputBaseDir, yangModules, context));
80 private Collection<? extends File> generateModuleInfos(final File outputBaseDir, final Set<Module> yangModules,
81 final SchemaContext context) {
82 Builder<File> result = ImmutableSet.builder();
83 Builder<String> bindingProviders = ImmutableSet.builder();
84 for (Module module : yangModules) {
85 Builder<String> currentProvidersBuilder = ImmutableSet.builder();
86 // TODO: do not mutate parameters, output of a method is defined by its return value
87 Set<File> moduleInfoProviders = generateYangModuleInfo(outputBaseDir, module, context, currentProvidersBuilder);
88 ImmutableSet<String> currentProviders = currentProvidersBuilder.build();
89 LOG.info("Adding ModuleInfo providers {}", currentProviders);
90 bindingProviders.addAll(currentProviders);
91 result.addAll(moduleInfoProviders);
94 result.add(writeMetaInfServices(resourceBaseDir, YangModelBindingProvider.class, bindingProviders.build()));
95 return result.build();
98 private File writeMetaInfServices(final File outputBaseDir, final Class<YangModelBindingProvider> serviceClass,
99 final ImmutableSet<String> services) {
100 File metainfServicesFolder = new File(outputBaseDir, "META-INF" + File.separator + "services");
101 metainfServicesFolder.mkdirs();
102 File serviceFile = new File(metainfServicesFolder, serviceClass.getName());
104 String src = Joiner.on('\n').join(services);
106 return writeFile(serviceFile, src);
109 public static final String DEFAULT_OUTPUT_BASE_DIR_PATH = "target" + File.separator + "generated-sources"
110 + File.separator + "maven-sal-api-gen";
112 private File getDefaultOutputBaseDir() {
114 outputBaseDir = new File(DEFAULT_OUTPUT_BASE_DIR_PATH);
115 setOutputBaseDirAsSourceFolder(outputBaseDir, mavenProject);
116 LOG.debug("Adding " + outputBaseDir.getPath() + " as compile source root");
117 return outputBaseDir;
120 private static void setOutputBaseDirAsSourceFolder(final File outputBaseDir, final MavenProject mavenProject) {
121 Preconditions.checkNotNull(mavenProject, "Maven project needs to be set in this phase");
122 mavenProject.addCompileSourceRoot(outputBaseDir.getPath());
126 public void setAdditionalConfig(final Map<String, String> additionalConfiguration) {
127 this.additionalConfig = additionalConfiguration;
131 public void setResourceBaseDir(final File resourceBaseDir) {
132 this.resourceBaseDir = resourceBaseDir;
136 public void setMavenProject(final MavenProject project) {
137 this.mavenProject = project;
138 this.projectBaseDir = project.getBasedir();
142 public void setBuildContext(final BuildContext buildContext) {
143 this.buildContext = Preconditions.checkNotNull(buildContext);
146 private Set<File> generateYangModuleInfo(final File outputBaseDir, final Module module, final SchemaContext ctx,
147 final Builder<String> providerSourceSet) {
148 Builder<File> generatedFiles = ImmutableSet.<File> builder();
150 final YangModuleInfoTemplate template = new YangModuleInfoTemplate(module, ctx);
151 String moduleInfoSource = template.generate();
152 if (moduleInfoSource.isEmpty()) {
153 throw new IllegalStateException("Generated code should not be empty!");
155 String providerSource = template.generateModelProvider();
157 final File packageDir = GeneratorJavaFile.packageToDirectory(outputBaseDir,
158 BindingGeneratorUtil.moduleNamespaceToPackageName(module));
160 generatedFiles.add(writeJavaSource(packageDir, BindingMapping.MODULE_INFO_CLASS_NAME, moduleInfoSource));
162 .add(writeJavaSource(packageDir, BindingMapping.MODEL_BINDING_PROVIDER_CLASS_NAME, providerSource));
163 providerSourceSet.add(template.getModelBindingProviderName());
165 return generatedFiles.build();
169 private File writeJavaSource(final File packageDir, final String className, final String source) {
170 if (!packageDir.exists()) {
173 final File file = new File(packageDir, className + ".java");
174 writeFile(file, source);
178 private File writeFile(final File file, final String source) {
179 try (final OutputStream stream = buildContext.newFileOutputStream(file)) {
180 try (final Writer fw = new OutputStreamWriter(stream, StandardCharsets.UTF_8)) {
181 try (final BufferedWriter bw = new BufferedWriter(fw)) {
184 } catch (Exception e) {
185 LOG.error("Could not write file: {}",file,e);
187 } catch (Exception e) {
188 LOG.error("Could not create file: {}",file,e);