1 /* 2 * Copyright (c) 2006, 2010, 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 24 /* 25 * @test 26 * @bug 6397298 6400986 6425592 6449798 6453386 6508401 6498938 6911854 27 * @summary Tests that getElementsAnnotatedWith works properly. 28 * @author Joseph D. Darcy 29 * @library /tools/javac/lib 30 * @build JavacTestingAbstractProcessor 31 * @compile TestElementsAnnotatedWith.java 32 * @compile InheritedAnnotation.java 33 * @compile -processor TestElementsAnnotatedWith -proc:only SurfaceAnnotations.java 34 * @compile -processor TestElementsAnnotatedWith -proc:only BuriedAnnotations.java 35 * @compile -processor TestElementsAnnotatedWith -proc:only Part1.java Part2.java 36 * @compile -processor TestElementsAnnotatedWith -proc:only C2.java 37 * @compile -processor TestElementsAnnotatedWith -proc:only Foo.java 38 * @compile Foo.java 39 * @compile/process -processor TestElementsAnnotatedWith -proc:only Foo 40 */ 41 42 import java.lang.annotation.Annotation; 43 import java.io.*; 44 import java.util.Collections; 45 import java.util.Set; 46 import java.util.HashSet; 47 import java.util.List; 48 import java.util.ArrayList; 49 import java.util.Arrays; 50 import javax.annotation.processing.*; 51 import javax.tools.*; 52 import javax.lang.model.SourceVersion; 53 import javax.lang.model.element.*; 54 import javax.lang.model.util.*; 55 import static javax.lang.model.util.ElementFilter.*; 56 57 /** 58 * This processor verifies that the information returned by 59 * getElementsAnnotatedWith is consistent with the expected results 60 * stored in an AnnotatedElementInfo annotation. 61 */ 62 @AnnotatedElementInfo(annotationName="java.lang.SuppressWarnings", expectedSize=0, names={}) 63 public class TestElementsAnnotatedWith extends JavacTestingAbstractProcessor { 64 65 public boolean process(Set<? extends TypeElement> annotations, 66 RoundEnvironment roundEnvironment) { 67 TypeElement annotatedElementInfoElement = 68 elements.getTypeElement("AnnotatedElementInfo"); 69 Set<? extends Element> resultsMeta = Collections.emptySet(); 70 Set<? extends Element> resultsBase = Collections.emptySet(); 71 72 if (!roundEnvironment.processingOver()) { 73 testNonAnnotations(roundEnvironment); 74 75 // Verify AnnotatedElementInfo is present on the first 76 // specified type. 77 78 TypeElement firstType = typesIn(roundEnvironment.getRootElements()).iterator().next(); 79 80 AnnotatedElementInfo annotatedElementInfo = firstType.getAnnotation(AnnotatedElementInfo.class); 81 82 boolean failed = false; 83 84 if (annotatedElementInfo == null) 85 throw new IllegalArgumentException("Missing AnnotatedElementInfo annotation on " + 86 firstType); 87 else { 88 // Verify that the annotation information is as 89 // expected. 90 91 Set<String> expectedNames = new HashSet<String>(Arrays.asList(annotatedElementInfo.names())); 92 93 resultsMeta = 94 roundEnvironment. 95 getElementsAnnotatedWith(elements.getTypeElement(annotatedElementInfo.annotationName())); 96 97 System.err.println("Results: " + resultsMeta); 98 99 if (resultsMeta.size() != annotatedElementInfo.expectedSize()) { 100 failed = true; 101 System.err.printf("Bad number of elements; expected %d, got %d%n", 102 annotatedElementInfo.expectedSize(), resultsMeta.size()); 103 } else { 104 for(Element element : resultsMeta) { 105 String simpleName = element.getSimpleName().toString(); 106 if (!expectedNames.contains(simpleName) ) { 107 failed = true; 108 System.err.println("Name ``" + simpleName + "'' not expected."); 109 } 110 } 111 } 112 } 113 114 resultsBase = computeResultsBase(roundEnvironment, annotatedElementInfo.annotationName()); 115 116 if (!resultsMeta.equals(resultsBase)) { 117 failed = true; 118 System.err.println("Base and Meta sets unequal;\n meta: " + resultsMeta + 119 "\nbase: " + resultsBase); 120 } 121 122 if (failed) { 123 System.err.println("AnnotatedElementInfo: " + annotatedElementInfo); 124 throw new RuntimeException(); 125 } 126 } else { 127 // If processing is over without an error, the specified 128 // elements should be empty so an empty set should be returned. 129 resultsMeta = roundEnvironment.getElementsAnnotatedWith(annotatedElementInfoElement); 130 resultsBase = roundEnvironment.getElementsAnnotatedWith(AnnotatedElementInfo.class); 131 if (!resultsMeta.isEmpty()) 132 throw new RuntimeException("Nonempty resultsMeta: " + resultsMeta); 133 if (!resultsBase.isEmpty()) 134 throw new RuntimeException("Nonempty resultsBase: " + resultsBase); 135 136 } 137 return true; 138 } 139 140 private Set<? extends Element> computeResultsBase(RoundEnvironment roundEnvironment, String name) { 141 try { 142 return roundEnvironment. 143 getElementsAnnotatedWith(Class.forName(name).asSubclass(Annotation.class)); 144 } catch(ClassNotFoundException cnfe) { 145 throw new RuntimeException(cnfe); 146 } 147 } 148 149 /** 150 * Verify non-annotation types result in 151 * IllegalArgumentExceptions. 152 */ 153 private void testNonAnnotations(RoundEnvironment roundEnvironment) { 154 try { 155 Set<? extends Element> elements = roundEnvironment.getElementsAnnotatedWith((Class)Object.class ); 156 throw new RuntimeException("Illegal argument exception not thrown"); 157 } catch(IllegalArgumentException iae) {} 158 159 try { 160 Set<? extends Element> elements = 161 roundEnvironment.getElementsAnnotatedWith(processingEnv. 162 getElementUtils(). 163 getTypeElement("java.lang.Object") ); 164 throw new RuntimeException("Illegal argument exception not thrown"); 165 } catch(IllegalArgumentException iae) {} 166 } 167 }