JavacTaskImpl(
Main compilerMain,
String[] args,
String[] classNames,
Context context,
List<JavaFileObject> fileObjects) {
this.ccw = ClientCodeWrapper.instance(context);
this.compilerMain = compilerMain;
this.args = args;
this.classNames = classNames;
this.context = context;
this.fileObjects = fileObjects;
setLocale(Locale.getDefault());
// null checks
compilerMain.getClass();
args.getClass();
fileObjects.getClass();
}
/** @author <a href="mailto:[email protected]">Julien Viet</a> */ public class ConvertingProcessor extends AbstractProcessor { private static final javax.tools.JavaCompiler javac = ToolProvider.getSystemJavaCompiler(); private static final Locale locale = Locale.getDefault(); private static final Charset charset = Charset.forName("UTF-8"); public static Map<Lang, Result> convert( ClassLoader loader, List<Lang> langs, String source, String fqn, String method) throws Exception { URL url = loader.getResource(source); if (url == null) { throw new Exception("Cannot resolve source " + source + ""); } String file = new File(url.toURI()).getAbsolutePath(); return convertFromFiles(loader, langs, file, fqn, method); } public static Map<Lang, Result> convertFromFiles( ClassLoader loader, List<Lang> lang, String file, String fqn, String method) throws Exception { DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<>(); StandardJavaFileManager manager = javac.getStandardFileManager(diagnostics, locale, charset); Iterable<? extends JavaFileObject> fileObjects = manager.getJavaFileObjects(file); StringWriter out = new StringWriter(); JavaCompiler.CompilationTask task = javac.getTask( out, manager, diagnostics, Collections.<String>emptyList(), Collections.<String>emptyList(), fileObjects); task.setLocale(locale); ConvertingProcessor processor = new ConvertingProcessor(lang, fqn, method); task.setProcessors(Collections.<Processor>singletonList(processor)); if (task.call()) { return processor.getResults(); } else { StringWriter message = new StringWriter(); PrintWriter writer = new PrintWriter(message); writer.append("Compilation of ").append(file).println(" failed:"); for (Diagnostic<? extends JavaFileObject> diagnostic : diagnostics.getDiagnostics()) { writer.append(diagnostic.getMessage(locale)); } writer.println("console:"); writer.append(out.getBuffer()); throw new Exception(message.toString()); } } private Map<Lang, Result> results = new LinkedHashMap<>(); private List<Lang> langs; private final String fqn; private final String method; private CodeTranslator translator; public ConvertingProcessor(List<Lang> langs, String fqn, String method) { this.langs = langs; this.fqn = fqn; this.method = method; } public Map<Lang, Result> getResults() { return results; } @Override public Set<String> getSupportedAnnotationTypes() { return Collections.singleton(CodeTranslate.class.getName()); } @Override public synchronized void init(ProcessingEnvironment processingEnv) { super.init(processingEnv); this.translator = new CodeTranslator(processingEnv); } @Override public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { for (Element annotatedElt : roundEnv.getElementsAnnotatedWith(CodeTranslate.class)) { ExecutableElement methodElt = (ExecutableElement) annotatedElt; TypeElement typeElt = (TypeElement) methodElt.getEnclosingElement(); if (typeElt.getQualifiedName().toString().equals(fqn) && methodElt.getSimpleName().toString().equals(method)) { for (Lang lang : langs) { Result result; try { String translation = translator.translate(methodElt, lang); result = new Result.Source(translation); } catch (Exception e) { result = new Result.Failure(e); } results.put(lang, result); } } } return false; } }
