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.Arrays; 33 import java.util.Collections; 34 import java.io.*; 35 36 public class PhantomTouch implements AnnotationProcessorFactory { 37 static class PhantomTouchProc implements AnnotationProcessor { 38 AnnotationProcessorEnvironment ape; 39 PhantomTouchProc(AnnotationProcessorEnvironment ape) { 40 this.ape = ape; 41 } 42 43 public void process() { 44 // Only run the processor on the initial apt invocation 45 if (ape.getSpecifiedTypeDeclarations().size() == 0) { 46 boolean result; 47 try { 48 // Create temporary file 49 java.io.File f = new java.io.File("touched"); 50 result = f.createNewFile(); 51 52 if (result) { 53 // Create new source file 54 PrintWriter pw = ape.getFiler().createSourceFile("HelloWorld"); 55 pw.println("public class HelloWorld {"); 56 pw.println(" // Phantom hello world"); 57 pw.println(" public static void main(String argv[]) {"); 58 pw.println(" System.out.println(\"Hello World\");"); 59 pw.println(" }"); 60 pw.println("}"); 61 } else 62 throw new RuntimeException("touched file already exists!"); 63 } catch (java.io.IOException e) { 64 result = false; 65 } 66 } 67 } 68 } 69 70 static final Collection<String> supportedOptions; 71 static final Collection<String> supportedTypes; 72 73 static { 74 String options[] = {""}; 75 supportedOptions = Collections.unmodifiableCollection(Arrays.asList(options)); 76 77 String types[] = {"*"}; 78 supportedTypes = Collections.unmodifiableCollection(Arrays.asList(types)); 79 } 80 81 public Collection<String> supportedAnnotationTypes() {return supportedTypes;} 82 public Collection<String> supportedOptions() {return supportedOptions;} 83 84 85 /* 86 * Return the same processor independent of what annotations are 87 * present, if any. 88 */ 89 public AnnotationProcessor getProcessorFor(Set<AnnotationTypeDeclaration> atds, 90 AnnotationProcessorEnvironment env) { 91 return new PhantomTouchProc(env); 92 } 93 }