diff options
Diffstat (limited to 'codegen/src/main/java/com/google/gson/codegen/GeneratedTypeAdapterProcessor.java')
-rw-r--r-- | codegen/src/main/java/com/google/gson/codegen/GeneratedTypeAdapterProcessor.java | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/codegen/src/main/java/com/google/gson/codegen/GeneratedTypeAdapterProcessor.java b/codegen/src/main/java/com/google/gson/codegen/GeneratedTypeAdapterProcessor.java new file mode 100644 index 00000000..cd542bc3 --- /dev/null +++ b/codegen/src/main/java/com/google/gson/codegen/GeneratedTypeAdapterProcessor.java @@ -0,0 +1,61 @@ +/* + * Copyright (C) 2012 Google Inc. + * + * Licensed 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 com.google.gson.codegen; + +import static java.lang.reflect.Modifier.FINAL; + +import java.io.IOException; +import java.util.Set; + +import javax.annotation.processing.AbstractProcessor; +import javax.annotation.processing.RoundEnvironment; +import javax.annotation.processing.SupportedAnnotationTypes; +import javax.annotation.processing.SupportedSourceVersion; +import javax.lang.model.SourceVersion; +import javax.lang.model.element.Element; +import javax.lang.model.element.TypeElement; +import javax.tools.Diagnostic; +import javax.tools.JavaFileObject; + +@SupportedAnnotationTypes("com.google.gson.codegen.GeneratedTypeAdapter") +@SupportedSourceVersion(SourceVersion.RELEASE_6) +public final class GeneratedTypeAdapterProcessor extends AbstractProcessor { + @Override public boolean process(Set<? extends TypeElement> types, RoundEnvironment env) { + System.out.println("invoked GeneratedTypeAdapterProcessor"); + try { + for (Element element : env.getElementsAnnotatedWith(GeneratedTypeAdapter.class)) { + writeAdapter((TypeElement) element); + } + } catch (IOException e) { + processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, e.getMessage()); + } + return true; + } + + private void writeAdapter(TypeElement type) throws IOException { + String typeAdapterName = CodeGen.adapterName(type, "$TypeAdapter"); + JavaFileObject sourceFile = processingEnv.getFiler() + .createSourceFile(typeAdapterName, type); + System.out.println("Generating type adapter: " + typeAdapterName + " in " + sourceFile.getName()); + + JavaWriter writer = new JavaWriter(sourceFile.openWriter()); + writer.addPackage(CodeGen.getPackage(type).getQualifiedName().toString()); + writer.beginType(typeAdapterName, "class", FINAL, null); + writer.endType(); + writer.close(); + } +} |