1 /* 2 * Copyright (c) 2009 Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 import java.util.HashSet; 24 import java.util.Set; 25 26 import javax.annotation.processing.*; 27 import javax.lang.model.SourceVersion; 28 import javax.lang.model.element.*; 29 import javax.lang.model.util.ElementFilter; 30 31 import com.sun.source.util.JavacTask; 32 import com.sun.source.util.TaskEvent; 33 import com.sun.source.util.TaskListener; 34 import com.sun.source.util.TreePath; 35 import com.sun.tools.javac.main.JavaCompiler; 36 import com.sun.tools.javac.main.JavaCompiler.CompileState; 37 import com.sun.tools.javac.processing.JavacProcessingEnvironment; 38 import com.sun.tools.javac.util.Context; 39 40 /* 41 * @test 42 * @summary test that package annotations are available to type processors. 43 * This class implements the functionality of a type processor, as previously 44 * embodied by the AbstractTypeProcessor class. 45 * 46 * @author Mahmood Ali 47 * @author Werner Dietl 48 * 49 * @compile PackageProcessor.java 50 * @compile -cp . -processor PackageProcessor mypackage/Anno.java mypackage/MyClass.java mypackage/package-info.java 51 */ 52 53 @SupportedAnnotationTypes("*") 54 public class PackageProcessor extends AbstractProcessor { 55 56 private final AttributionTaskListener listener = new AttributionTaskListener(); 57 private final Set<Name> elements = new HashSet<Name>(); 58 59 @Override 60 public final void init(ProcessingEnvironment env) { 61 super.init(env); 62 JavacTask.instance(env).addTaskListener(listener); 63 Context ctx = ((JavacProcessingEnvironment)processingEnv).getContext(); 64 JavaCompiler compiler = JavaCompiler.instance(ctx); 65 compiler.shouldStopPolicyIfNoError = CompileState.max(compiler.shouldStopPolicyIfNoError, 66 CompileState.FLOW); 67 } 68 69 @Override 70 public final boolean process(Set<? extends TypeElement> annotations, 71 RoundEnvironment roundEnv) { 72 for (TypeElement elem : ElementFilter.typesIn(roundEnv.getRootElements())) { 73 elements.add(elem.getQualifiedName()); 74 } 75 return false; 76 } 77 78 @Override 79 public SourceVersion getSupportedSourceVersion() { 80 return SourceVersion.latest(); 81 } 82 83 private final class AttributionTaskListener implements TaskListener { 84 @Override 85 public void started(TaskEvent e) { } 86 87 @Override 88 public void finished(TaskEvent e) { 89 if (e.getKind() != TaskEvent.Kind.ANALYZE) 90 return; 91 92 if (!elements.remove(e.getTypeElement().getQualifiedName())) 93 return; 94 95 if (e.getTypeElement().getSimpleName().contentEquals("MyClass")) { 96 Element owner = e.getTypeElement().getEnclosingElement(); 97 if (owner.getKind() != ElementKind.PACKAGE) 98 throw new RuntimeException("class owner should be a package: " + owner); 99 if (owner.getAnnotationMirrors().size() != 1) 100 throw new RuntimeException("the owner package should have one annotation: " + owner); 101 } 102 } 103 } 104 105 }