jjg@1521: /*
darcy@1534:  * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
jjg@1521:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@1521:  *
jjg@1521:  * This code is free software; you can redistribute it and/or modify it
jjg@1521:  * under the terms of the GNU General Public License version 2 only, as
jjg@1521:  * published by the Free Software Foundation.
jjg@1521:  *
jjg@1521:  * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@1521:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@1521:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jjg@1521:  * version 2 for more details (a copy is included in the LICENSE file that
jjg@1521:  * accompanied this code).
jjg@1521:  *
jjg@1521:  * You should have received a copy of the GNU General Public License version
jjg@1521:  * 2 along with this work; if not, write to the Free Software Foundation,
jjg@1521:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@1521:  *
jjg@1521:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
jjg@1521:  * or visit www.oracle.com if you need additional information or have any
jjg@1521:  * questions.
jjg@1521:  */
jjg@1521: import java.util.HashSet;
jjg@1521: import java.util.Set;
jjg@1521: 
jjg@1521: import javax.annotation.processing.*;
jjg@1521: import javax.lang.model.SourceVersion;
jjg@1521: import javax.lang.model.element.*;
jjg@1521: import javax.lang.model.util.ElementFilter;
jjg@1521: 
jjg@1521: import com.sun.source.util.JavacTask;
jjg@1521: import com.sun.source.util.TaskEvent;
jjg@1521: import com.sun.source.util.TaskListener;
jjg@1521: import com.sun.source.util.TreePath;
jjg@1521: import com.sun.tools.javac.main.JavaCompiler;
jjg@1521: import com.sun.tools.javac.main.JavaCompiler.CompileState;
jjg@1521: import com.sun.tools.javac.processing.JavacProcessingEnvironment;
jjg@1521: import com.sun.tools.javac.util.Context;
jjg@1521: 
jjg@1521: /*
jjg@1521:  * @test
jjg@1521:  * @summary test that package annotations are available to type processors.
jjg@1521:  * This class implements the functionality of a type processor, as previously
jjg@1521:  * embodied by the AbstractTypeProcessor class.
jjg@1521:  *
jjg@1521:  * @author Mahmood Ali
jjg@1521:  * @author Werner Dietl
jjg@1521:  *
jjg@1521:  * @compile PackageProcessor.java
jjg@1521:  * @compile -cp . -processor PackageProcessor mypackage/Anno.java mypackage/MyClass.java mypackage/package-info.java
jjg@1521:  */
jjg@1521: 
jjg@1521: @SupportedAnnotationTypes("*")
jjg@1521: public class PackageProcessor extends AbstractProcessor {
jjg@1521: 
jjg@1521:     private final AttributionTaskListener listener = new AttributionTaskListener();
jjg@1521:     private final Set<Name> elements = new HashSet<Name>();
jjg@1521: 
jjg@1521:     @Override
jjg@1521:     public final void init(ProcessingEnvironment env) {
jjg@1521:         super.init(env);
jjg@1521:         JavacTask.instance(env).addTaskListener(listener);
jjg@1521:         Context ctx = ((JavacProcessingEnvironment)processingEnv).getContext();
jjg@1521:         JavaCompiler compiler = JavaCompiler.instance(ctx);
jjg@1521:         compiler.shouldStopPolicyIfNoError = CompileState.max(compiler.shouldStopPolicyIfNoError,
jjg@1521:                 CompileState.FLOW);
jjg@1521:     }
jjg@1521: 
jjg@1521:     @Override
jjg@1521:     public final boolean process(Set<? extends TypeElement> annotations,
jjg@1521:             RoundEnvironment roundEnv) {
jjg@1521:         for (TypeElement elem : ElementFilter.typesIn(roundEnv.getRootElements())) {
jjg@1521:             elements.add(elem.getQualifiedName());
jjg@1521:         }
jjg@1521:         return false;
jjg@1521:     }
jjg@1521: 
jjg@1521:     @Override
jjg@1521:     public SourceVersion getSupportedSourceVersion() {
jjg@1521:         return SourceVersion.latest();
jjg@1521:     }
jjg@1521: 
jjg@1521:     private final class AttributionTaskListener implements TaskListener {
jjg@1521:         @Override
jjg@1521:         public void started(TaskEvent e) { }
jjg@1521: 
jjg@1521:         @Override
jjg@1521:         public void finished(TaskEvent e) {
jjg@1521:             if (e.getKind() != TaskEvent.Kind.ANALYZE)
jjg@1521:                 return;
jjg@1521: 
jjg@1521:             if (!elements.remove(e.getTypeElement().getQualifiedName()))
jjg@1521:                 return;
jjg@1521: 
jjg@1521:             if (e.getTypeElement().getSimpleName().contentEquals("MyClass")) {
jjg@1521:                 Element owner = e.getTypeElement().getEnclosingElement();
jjg@1521:                 if (owner.getKind() != ElementKind.PACKAGE)
jjg@1521:                     throw new RuntimeException("class owner should be a package: " + owner);
jjg@1521:                 if (owner.getAnnotationMirrors().size() != 1)
jjg@1521:                     throw new RuntimeException("the owner package should have one annotation: " + owner);
jjg@1521:             }
jjg@1521:         }
jjg@1521:     }
jjg@1521: 
jjg@1521: }