1 /* 2 * Copyright (c) 2004, 2007, 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 import com.sun.mirror.apt.*; 26 import com.sun.mirror.declaration.*; 27 import com.sun.mirror.type.*; 28 import com.sun.mirror.util.*; 29 30 import java.util.Collection; 31 import java.util.Set; 32 import java.util.Map; 33 import java.util.Arrays; 34 import java.util.Collections; 35 36 public class OptionChecker implements AnnotationProcessorFactory { 37 static class OptionCheck implements AnnotationProcessor { 38 AnnotationProcessorEnvironment ape; 39 OptionCheck(AnnotationProcessorEnvironment ape) { 40 this.ape = ape; 41 } 42 43 public void process() { 44 Map<String, String> options = ape.getOptions(); 45 if (options.containsKey("-Afoo") && 46 options.containsKey("-Abar") && 47 options.containsKey("-classpath") ) { 48 System.out.println("Expected options found."); 49 return; // All is well 50 } else { 51 System.err.println("Unexpected options values: " + options); 52 throw new RuntimeException(); 53 } 54 } 55 } 56 57 static class HelloWorld implements AnnotationProcessor { 58 AnnotationProcessorEnvironment ape; 59 HelloWorld(AnnotationProcessorEnvironment ape) { 60 this.ape = ape; 61 } 62 63 public void process() { 64 java.io.PrintWriter pw; 65 try { 66 pw = ape.getFiler().createSourceFile("HelloWorld"); 67 } catch (Exception e) { 68 throw new RuntimeException(e); 69 } 70 71 pw.println("public class HelloWorld {"); 72 pw.println(" public static void main (String argv[]) {"); 73 pw.println(" System.out.println(\"Hello apt world.\");"); 74 pw.println(" }"); 75 pw.println("}"); 76 } 77 } 78 79 80 static Collection<String> supportedTypes; 81 static { 82 String types[] = {"*"}; 83 supportedTypes = Collections.unmodifiableCollection(Arrays.asList(types)); 84 } 85 86 static Collection<String> supportedOptions; 87 static { 88 String options[] = {"-Afoo", "-Abar"}; 89 supportedOptions = Collections.unmodifiableCollection(Arrays.asList(options)); 90 } 91 92 public Collection<String> supportedOptions() { 93 return supportedOptions; 94 } 95 96 public Collection<String> supportedAnnotationTypes() { 97 return supportedTypes; 98 } 99 100 /* 101 * Return the same processor independent of what annotations are 102 * present, if any. 103 */ 104 public AnnotationProcessor getProcessorFor(Set<AnnotationTypeDeclaration> atds, 105 AnnotationProcessorEnvironment ape) { 106 107 if (atds.contains(ape.getTypeDeclaration("Marker"))) { 108 System.out.println("Returning composite processor."); 109 return AnnotationProcessors.getCompositeAnnotationProcessor(new OptionCheck(ape), 110 new HelloWorld(ape)); 111 } 112 else { 113 System.out.println("Returning single processor."); 114 return new OptionCheck(ape); 115 } 116 } 117 }