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.io.*;
aoqi@0: import java.util.Set;
aoqi@0: import java.util.HashSet;
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 type processors are run when -proc:only is passed.
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: @SupportedAnnotationTypes("*")
aoqi@0: public class TypeProcOnly extends AbstractProcessor {
aoqi@0:     private static final String INDICATOR = "INDICATOR";
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(
aoqi@0:                 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:             System.out.println(INDICATOR);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0: 
aoqi@0:     private static File writeTestFile() throws IOException {
aoqi@0:         File f = new File("Test.java");
aoqi@0:         PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
aoqi@0:         out.println("class Test { }");
aoqi@0:         out.close();
aoqi@0:         return f;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public static void main(String[] args) throws Exception {
aoqi@0:         PrintStream prevOut = System.out;
aoqi@0: 
aoqi@0:         ByteArrayOutputStream bytes = new ByteArrayOutputStream();
aoqi@0:         PrintStream out = new PrintStream(bytes);
aoqi@0:         System.setOut(out);
aoqi@0: 
aoqi@0:         try {
aoqi@0:             File f = writeTestFile();
aoqi@0:             com.sun.tools.javac.Main.compile(new String[] {"-proc:only", "-processor", "TypeProcOnly", f.getAbsolutePath()});
aoqi@0:         } finally {
aoqi@0:             System.setOut(prevOut);
aoqi@0:         }
aoqi@0: 
aoqi@0:         if (bytes.toString().trim().equals(INDICATOR)) {
aoqi@0:             System.out.println("PASSED");
aoqi@0:         } else {
aoqi@0:             throw new Exception("Processor did not run correctly. Output: " + bytes);
aoqi@0:         }
aoqi@0:     }
aoqi@0: }