aoqi@0: /*
aoqi@0:  * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: import java.util.HashSet;
aoqi@0: import java.util.Set;
aoqi@0: 
aoqi@0: import javax.annotation.processing.*;
aoqi@0: import javax.lang.model.SourceVersion;
aoqi@0: import javax.lang.model.element.*;
aoqi@0: import javax.lang.model.util.ElementFilter;
aoqi@0: 
aoqi@0: import com.sun.source.util.JavacTask;
aoqi@0: import com.sun.source.util.TaskEvent;
aoqi@0: import com.sun.source.util.TaskListener;
aoqi@0: import com.sun.tools.javac.main.JavaCompiler;
aoqi@0: import com.sun.tools.javac.processing.JavacProcessingEnvironment;
aoqi@0: import com.sun.tools.javac.util.Context;
aoqi@0: 
aoqi@0: import static com.sun.tools.javac.comp.CompileStates.CompileState;
aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test
aoqi@0:  * @summary test that package annotations are available to type processors.
aoqi@0:  * This class implements the functionality of a type processor, as previously
aoqi@0:  * embodied by the AbstractTypeProcessor class.
aoqi@0:  *
aoqi@0:  * @author Mahmood Ali
aoqi@0:  * @author Werner Dietl
aoqi@0:  *
aoqi@0:  * @compile PackageProcessor.java
aoqi@0:  * @compile -cp . -processor PackageProcessor mypackage/Anno.java mypackage/MyClass.java mypackage/package-info.java
aoqi@0:  */
aoqi@0: 
aoqi@0: @SupportedAnnotationTypes("*")
aoqi@0: public class PackageProcessor extends AbstractProcessor {
aoqi@0: 
aoqi@0:     private final AttributionTaskListener listener = new AttributionTaskListener();
aoqi@0:     private final Set<Name> elements = new HashSet<Name>();
aoqi@0: 
aoqi@0:     @Override
aoqi@0:     public final void init(ProcessingEnvironment env) {
aoqi@0:         super.init(env);
aoqi@0:         JavacTask.instance(env).addTaskListener(listener);
aoqi@0:         Context ctx = ((JavacProcessingEnvironment)processingEnv).getContext();
aoqi@0:         JavaCompiler compiler = JavaCompiler.instance(ctx);
aoqi@0:         compiler.shouldStopPolicyIfNoError = CompileState.max(compiler.shouldStopPolicyIfNoError,
aoqi@0:                 CompileState.FLOW);
aoqi@0:     }
aoqi@0: 
aoqi@0:     @Override
aoqi@0:     public final boolean process(Set<? extends TypeElement> annotations,
aoqi@0:             RoundEnvironment roundEnv) {
aoqi@0:         for (TypeElement elem : ElementFilter.typesIn(roundEnv.getRootElements())) {
aoqi@0:             elements.add(elem.getQualifiedName());
aoqi@0:         }
aoqi@0:         return false;
aoqi@0:     }
aoqi@0: 
aoqi@0:     @Override
aoqi@0:     public SourceVersion getSupportedSourceVersion() {
aoqi@0:         return SourceVersion.latest();
aoqi@0:     }
aoqi@0: 
aoqi@0:     private final class AttributionTaskListener implements TaskListener {
aoqi@0:         @Override
aoqi@0:         public void started(TaskEvent e) { }
aoqi@0: 
aoqi@0:         @Override
aoqi@0:         public void finished(TaskEvent e) {
aoqi@0:             if (e.getKind() != TaskEvent.Kind.ANALYZE)
aoqi@0:                 return;
aoqi@0: 
aoqi@0:             if (!elements.remove(e.getTypeElement().getQualifiedName()))
aoqi@0:                 return;
aoqi@0: 
aoqi@0:             if (e.getTypeElement().getSimpleName().contentEquals("MyClass")) {
aoqi@0:                 Element owner = e.getTypeElement().getEnclosingElement();
aoqi@0:                 if (owner.getKind() != ElementKind.PACKAGE)
aoqi@0:                     throw new RuntimeException("class owner should be a package: " + owner);
aoqi@0:                 if (owner.getAnnotationMirrors().size() != 1)
aoqi@0:                     throw new RuntimeException("the owner package should have one annotation: " + owner);
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0: }