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/*
* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.io.IOError;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.charset.StandardCharsets;
import java.util.Set;
import javax.annotation.processing.RoundEnvironment;
import javax.annotation.processing.SupportedAnnotationTypes;
import javax.lang.model.element.Element;
import javax.lang.model.element.TypeElement;
import javax.tools.JavaFileObject;
// This processor generates the missing annotation types of the form AutoAnnotation_*
// thereby making sure annotation processing doesn't abort/crash on account of that.
@SupportedAnnotationTypes("*")
public class Processor extends JavacTestingAbstractProcessor {
@Override
public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
if (!roundEnv.processingOver()) {
for (Element element : roundEnv.getRootElements()) {
String elementName = element.getSimpleName().toString();
if (elementName.startsWith("AutoAnnotation_")) {
continue;
}
String name = "AutoAnnotation_" + elementName;
JavaFileObject jfo;
try {
jfo = processingEnv.getFiler().createSourceFile(name, element);
} catch (IOException e) {
throw new IOError(e);
}
try (OutputStream os = jfo.openOutputStream()) {
String output = String.format("public @interface %s {}", name);
os.write(output.getBytes(StandardCharsets.UTF_8));
} catch (IOException e) {
throw new IOError(e);
}
}
}
return false;
}
}
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