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/*
* Copyright (c) 2010, 2011, 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.util.*;
import javax.annotation.processing.*;
import javax.lang.model.SourceVersion;
import javax.lang.model.util.*;
/**
* An abstract annotation processor tailored to javac regression testing.
*/
public abstract class JavacTestingAbstractProcessor extends AbstractProcessor {
private static final Set<String> allAnnotations;
static {
Set<String> tmp = new HashSet<>();
tmp.add("*");
allAnnotations = Collections.unmodifiableSet(tmp);
}
protected Elements eltUtils;
protected Elements elements;
protected Types typeUtils;
protected Types types;
protected Filer filer;
protected Messager messager;
protected Map<String, String> options;
/**
* Constructor for subclasses to call.
*/
protected JavacTestingAbstractProcessor() {
super();
}
/**
* Return the latest source version. Unless this method is
* overridden, an {@code IllegalStateException} will be thrown if a
* subclass has a {@code SupportedSourceVersion} annotation.
*/
@Override
public SourceVersion getSupportedSourceVersion() {
SupportedSourceVersion ssv = this.getClass().getAnnotation(SupportedSourceVersion.class);
if (ssv != null)
throw new IllegalStateException("SupportedSourceVersion annotation not supported here.");
return SourceVersion.latest();
}
/**
* If the processor class is annotated with {@link
* SupportedAnnotationTypes}, return an unmodifiable set with the
* same set of strings as the annotation. If the class is not so
* annotated, a one-element set containing {@code "*"} is returned
* to indicate all annotations are processed.
*
* @return the names of the annotation types supported by this
* processor, or an empty set if none
*/
@Override
public Set<String> getSupportedAnnotationTypes() {
SupportedAnnotationTypes sat = this.getClass().getAnnotation(SupportedAnnotationTypes.class);
if (sat != null)
return super.getSupportedAnnotationTypes();
else
return allAnnotations;
}
@Override
public void init(ProcessingEnvironment processingEnv) {
super.init(processingEnv);
elements = eltUtils = processingEnv.getElementUtils();
types = typeUtils = processingEnv.getTypeUtils();
filer = processingEnv.getFiler();
messager = processingEnv.getMessager();
options = processingEnv.getOptions();
}
}
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