Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright (c) 2009 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.HashSet;

 import java.util.Set;

 import javax.annotation.processing.*;

 import javax.lang.model.SourceVersion;

 import javax.lang.model.element.*;

 import javax.lang.model.util.ElementFilter;

 import com.sun.source.util.JavacTask;

 import com.sun.source.util.TaskEvent;

 import com.sun.source.util.TaskListener;

 import com.sun.source.util.TreePath;

 import com.sun.tools.javac.main.JavaCompiler;

 import com.sun.tools.javac.main.JavaCompiler.CompileState;

 import com.sun.tools.javac.processing.JavacProcessingEnvironment;

 import com.sun.tools.javac.util.Context;

 /*

  * @test

  * @summary test that package annotations are available to type processors.

  * This class implements the functionality of a type processor, as previously

  * embodied by the AbstractTypeProcessor class.

  *

  * @author Mahmood Ali

  * @author Werner Dietl

  *

  * @compile PackageProcessor.java

  * @compile -cp . -processor PackageProcessor mypackage/Anno.java mypackage/MyClass.java mypackage/package-info.java

  */

 @SupportedAnnotationTypes("*")

 public class PackageProcessor extends AbstractProcessor {

     private final AttributionTaskListener listener = new AttributionTaskListener();

     private final Set<Name> elements = new HashSet<Name>();

     @Override

     public final void init(ProcessingEnvironment env) {

         super.init(env);

         JavacTask.instance(env).addTaskListener(listener);

         Context ctx = ((JavacProcessingEnvironment)processingEnv).getContext();

         JavaCompiler compiler = JavaCompiler.instance(ctx);

         compiler.shouldStopPolicyIfNoError = CompileState.max(compiler.shouldStopPolicyIfNoError,

                 CompileState.FLOW);

     }

     @Override

     public final boolean process(Set<? extends TypeElement> annotations,

             RoundEnvironment roundEnv) {

         for (TypeElement elem : ElementFilter.typesIn(roundEnv.getRootElements())) {

             elements.add(elem.getQualifiedName());

         }

         return false;

     }

     @Override

     public SourceVersion getSupportedSourceVersion() {

         return SourceVersion.latest();

     }

     private final class AttributionTaskListener implements TaskListener {

         @Override

         public void started(TaskEvent e) { }

         @Override

         public void finished(TaskEvent e) {

             if (e.getKind() != TaskEvent.Kind.ANALYZE)

                 return;

             if (!elements.remove(e.getTypeElement().getQualifiedName()))

                 return;

             if (e.getTypeElement().getSimpleName().contentEquals("MyClass")) {

                 Element owner = e.getTypeElement().getEnclosingElement();

                 if (owner.getKind() != ElementKind.PACKAGE)

                     throw new RuntimeException("class owner should be a package: " + owner);

                 if (owner.getAnnotationMirrors().size() != 1)

                     throw new RuntimeException("the owner package should have one annotation: " + owner);

             }

         }

     }

 }