| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.mnemonic; |
| |
| /** |
| * a non-volatile annotation processor |
| * |
| */ |
| |
| import java.io.IOException; |
| import java.util.LinkedHashSet; |
| import java.util.Set; |
| |
| import javax.annotation.processing.AbstractProcessor; |
| import javax.annotation.processing.Filer; |
| import javax.annotation.processing.Messager; |
| import javax.annotation.processing.ProcessingEnvironment; |
| import javax.annotation.processing.RoundEnvironment; |
| import javax.lang.model.SourceVersion; |
| import javax.lang.model.element.Element; |
| import javax.lang.model.element.ElementKind; |
| import javax.lang.model.element.TypeElement; |
| import javax.lang.model.util.Elements; |
| import javax.lang.model.util.Types; |
| |
| import javax.tools.Diagnostic; |
| |
| public class DurableEntityProcessor extends AbstractProcessor { |
| private Types typeUtils; |
| private Elements elementUtils; |
| private Filer filer; |
| private Messager messager; |
| // private Map<String, FactoryGroupedClasses> factoryClasses = new |
| // LinkedHashMap<String, FactoryGroupedClasses>(); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public synchronized void init(ProcessingEnvironment processingEnv) { |
| super.init(processingEnv); |
| typeUtils = processingEnv.getTypeUtils(); |
| elementUtils = processingEnv.getElementUtils(); |
| filer = processingEnv.getFiler(); |
| messager = processingEnv.getMessager(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public Set<String> getSupportedAnnotationTypes() { |
| Set<String> annotataions = new LinkedHashSet<String>(); |
| annotataions.add(DurableEntity.class.getCanonicalName()); |
| return annotataions; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public SourceVersion getSupportedSourceVersion() { |
| return SourceVersion.latestSupported(); |
| } |
| |
| /** |
| * triggered if an error issued during processing |
| * |
| * @param e |
| * the element in question |
| * |
| * @param msg |
| * the message issued |
| */ |
| public void error(Element e, String msg) { |
| messager.printMessage(Diagnostic.Kind.ERROR, msg, e); |
| } |
| |
| /** |
| * triggered if a note issued during processing |
| * |
| * @param e |
| * the element in question |
| * |
| * @param msg |
| * the message issued |
| */ |
| public void note(Element e, String msg) { |
| messager.printMessage(Diagnostic.Kind.NOTE, msg, e); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { |
| |
| try { |
| |
| for (Element annotatedElement : roundEnv.getElementsAnnotatedWith(DurableEntity.class)) { |
| |
| String outputstr = String.format("++++++++++%s+++++++++++", annotatedElement.getSimpleName()); |
| note(annotatedElement, outputstr); |
| // System.err.println(outputstr); |
| |
| if (annotatedElement.getKind() != ElementKind.CLASS) { |
| throw new AnnotationProcessingException(annotatedElement, "Only classes can be annotated with @%s", |
| DurableEntity.class.getSimpleName()); |
| } |
| |
| // We can cast it, because we know that it of ElementKind.CLASS |
| TypeElement typeelem = (TypeElement) annotatedElement; |
| |
| AnnotatedDurableEntityClass annotatedClass = new AnnotatedDurableEntityClass(typeelem, typeUtils, |
| elementUtils, messager); |
| |
| annotatedClass.prepareProcessing(); |
| |
| annotatedClass.generateCode(filer); |
| |
| } |
| |
| } catch (AnnotationProcessingException e) { |
| error(e.getElement(), e.getMessage()); |
| } catch (IOException e) { |
| error(null, e.getMessage()); |
| } |
| |
| return true; |
| } |
| |
| } |