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.io.*; 24 import java.util.Set; 25 import java.util.HashSet; 26 27 import javax.annotation.processing.*; 28 import javax.lang.model.SourceVersion; 29 import javax.lang.model.element.*; 30 import javax.lang.model.util.ElementFilter; 31 32 import com.sun.source.util.JavacTask; 33 import com.sun.source.util.TaskEvent; 34 import com.sun.source.util.TaskListener; 35 import com.sun.source.util.TreePath; 36 import com.sun.tools.javac.main.JavaCompiler; 37 import com.sun.tools.javac.main.JavaCompiler.CompileState; 38 import com.sun.tools.javac.processing.JavacProcessingEnvironment; 39 import com.sun.tools.javac.util.Context; 40 41 /* 42 * @test 43 * @summary test that type processors are run when -proc:only is passed. 44 * This class implements the functionality of a type processor, as previously 45 * embodied by the AbstractTypeProcessor class. 46 * 47 * @author Mahmood Ali 48 * @author Werner Dietl 49 */ 50 @SupportedAnnotationTypes("*") 51 public class TypeProcOnly extends AbstractProcessor { 52 private static final String INDICATOR = "INDICATOR"; 53 54 private final AttributionTaskListener listener = new AttributionTaskListener(); 55 private final Set<Name> elements = new HashSet<Name>(); 56 57 @Override 58 public final void init(ProcessingEnvironment env) { 59 super.init(env); 60 JavacTask.instance(env).addTaskListener(listener); 61 Context ctx = ((JavacProcessingEnvironment)processingEnv).getContext(); 62 JavaCompiler compiler = JavaCompiler.instance(ctx); 63 compiler.shouldStopPolicyIfNoError = CompileState.max( 64 compiler.shouldStopPolicyIfNoError, 65 CompileState.FLOW); 66 } 67 68 @Override 69 public final boolean process(Set<? extends TypeElement> annotations, 70 RoundEnvironment roundEnv) { 71 for (TypeElement elem : ElementFilter.typesIn(roundEnv.getRootElements())) { 72 elements.add(elem.getQualifiedName()); 73 } 74 return false; 75 } 76 77 @Override 78 public SourceVersion getSupportedSourceVersion() { 79 return SourceVersion.latest(); 80 } 81 82 private final class AttributionTaskListener implements TaskListener { 83 @Override 84 public void started(TaskEvent e) { } 85 86 @Override 87 public void finished(TaskEvent e) { 88 if (e.getKind() != TaskEvent.Kind.ANALYZE) 89 return; 90 91 if (!elements.remove(e.getTypeElement().getQualifiedName())) 92 return; 93 94 System.out.println(INDICATOR); 95 } 96 } 97 98 99 private static File writeTestFile() throws IOException { 100 File f = new File("Test.java"); 101 PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f))); 102 out.println("class Test { }"); 103 out.close(); 104 return f; 105 } 106 107 public static void main(String[] args) throws Exception { 108 PrintStream prevOut = System.out; 109 110 ByteArrayOutputStream bytes = new ByteArrayOutputStream(); 111 PrintStream out = new PrintStream(bytes); 112 System.setOut(out); 113 114 try { 115 File f = writeTestFile(); 116 com.sun.tools.javac.Main.compile(new String[] {"-proc:only", "-processor", "TypeProcOnly", f.getAbsolutePath()}); 117 } finally { 118 System.setOut(prevOut); 119 } 120 121 if (bytes.toString().trim().equals(INDICATOR)) { 122 System.out.println("PASSED"); 123 } else { 124 throw new Exception("Processor did not run correctly. Output: " + bytes); 125 } 126 } 127 }