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/*
* Copyright (c) 2006, 2010, 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.
*/
/*
* @test
* @bug 6397298 6400986 6425592 6449798 6453386 6508401 6498938 6911854
* @summary Tests that getElementsAnnotatedWith works properly.
* @author Joseph D. Darcy
* @library /tools/javac/lib
* @build JavacTestingAbstractProcessor
* @compile TestElementsAnnotatedWith.java
* @compile InheritedAnnotation.java
* @compile TpAnno.java
* @compile -processor TestElementsAnnotatedWith -proc:only SurfaceAnnotations.java
* @compile -processor TestElementsAnnotatedWith -proc:only BuriedAnnotations.java
* @compile -processor TestElementsAnnotatedWith -proc:only Part1.java Part2.java
* @compile -processor TestElementsAnnotatedWith -proc:only C2.java
* @compile -processor TestElementsAnnotatedWith -proc:only Foo.java
* @compile -processor TestElementsAnnotatedWith -proc:only TypeParameterAnnotations.java
* @compile Foo.java
* @compile/process -processor TestElementsAnnotatedWith -proc:only Foo
*/
import java.lang.annotation.Annotation;
import java.io.*;
import java.util.Collections;
import java.util.Set;
import java.util.HashSet;
import java.util.List;
import java.util.ArrayList;
import java.util.Arrays;
import javax.annotation.processing.*;
import javax.tools.*;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.*;
import javax.lang.model.util.*;
import static javax.lang.model.util.ElementFilter.*;
/**
* This processor verifies that the information returned by
* getElementsAnnotatedWith is consistent with the expected results
* stored in an AnnotatedElementInfo annotation.
*/
@AnnotatedElementInfo(annotationName="java.lang.SuppressWarnings", expectedSize=0, names={})
public class TestElementsAnnotatedWith extends JavacTestingAbstractProcessor {
public boolean process(Set<? extends TypeElement> annotations,
RoundEnvironment roundEnvironment) {
TypeElement annotatedElementInfoElement =
elements.getTypeElement("AnnotatedElementInfo");
Set<? extends Element> resultsMeta = Collections.emptySet();
Set<? extends Element> resultsBase = Collections.emptySet();
if (!roundEnvironment.processingOver()) {
testNonAnnotations(roundEnvironment);
// Verify AnnotatedElementInfo is present on the first
// specified type.
TypeElement firstType = typesIn(roundEnvironment.getRootElements()).iterator().next();
AnnotatedElementInfo annotatedElementInfo = firstType.getAnnotation(AnnotatedElementInfo.class);
boolean failed = false;
if (annotatedElementInfo == null)
throw new IllegalArgumentException("Missing AnnotatedElementInfo annotation on " +
firstType);
else {
// Verify that the annotation information is as
// expected.
Set<String> expectedNames = new HashSet<String>(Arrays.asList(annotatedElementInfo.names()));
resultsMeta =
roundEnvironment.
getElementsAnnotatedWith(elements.getTypeElement(annotatedElementInfo.annotationName()));
System.err.println("Results: " + resultsMeta);
if (resultsMeta.size() != annotatedElementInfo.expectedSize()) {
failed = true;
System.err.printf("Bad number of elements; expected %d, got %d%n",
annotatedElementInfo.expectedSize(), resultsMeta.size());
} else {
for(Element element : resultsMeta) {
String simpleName = element.getSimpleName().toString();
if (!expectedNames.contains(simpleName) ) {
failed = true;
System.err.println("Name ``" + simpleName + "'' not expected.");
}
}
}
}
resultsBase = computeResultsBase(roundEnvironment, annotatedElementInfo.annotationName());
if (!resultsMeta.equals(resultsBase)) {
failed = true;
System.err.println("Base and Meta sets unequal;\n meta: " + resultsMeta +
"\nbase: " + resultsBase);
}
if (failed) {
System.err.println("AnnotatedElementInfo: " + annotatedElementInfo);
throw new RuntimeException();
}
} else {
// If processing is over without an error, the specified
// elements should be empty so an empty set should be returned.
resultsMeta = roundEnvironment.getElementsAnnotatedWith(annotatedElementInfoElement);
resultsBase = roundEnvironment.getElementsAnnotatedWith(AnnotatedElementInfo.class);
if (!resultsMeta.isEmpty())
throw new RuntimeException("Nonempty resultsMeta: " + resultsMeta);
if (!resultsBase.isEmpty())
throw new RuntimeException("Nonempty resultsBase: " + resultsBase);
}
return true;
}
private Set<? extends Element> computeResultsBase(RoundEnvironment roundEnvironment, String name) {
try {
return roundEnvironment.
getElementsAnnotatedWith(Class.forName(name).asSubclass(Annotation.class));
} catch(ClassNotFoundException cnfe) {
throw new RuntimeException(cnfe);
}
}
/**
* Verify non-annotation types result in
* IllegalArgumentExceptions.
*/
private void testNonAnnotations(RoundEnvironment roundEnvironment) {
try {
Set<? extends Element> elements = roundEnvironment.getElementsAnnotatedWith((Class)Object.class );
throw new RuntimeException("Illegal argument exception not thrown");
} catch(IllegalArgumentException iae) {}
try {
Set<? extends Element> elements =
roundEnvironment.getElementsAnnotatedWith(processingEnv.
getElementUtils().
getTypeElement("java.lang.Object") );
throw new RuntimeException("Illegal argument exception not thrown");
} catch(IllegalArgumentException iae) {}
}
}
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