| /* |
| * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.io.*; |
| import java.util.*; |
| import javax.annotation.processing.*; |
| import javax.lang.model.element.*; |
| import javax.lang.model.type.*; |
| import javax.lang.model.util.*; |
| import javax.tools.*; |
| |
| public class Generator extends JavacTestingAbstractProcessor { |
| |
| @Override |
| public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { |
| for (TypeElement te: ElementFilter.typesIn(roundEnv.getRootElements())) { |
| System.err.println(te); |
| generateIfMissing(te.getSuperclass()); |
| generateIfMissing(te.getInterfaces()); |
| } |
| return true; |
| } |
| |
| void generateIfMissing(List<? extends TypeMirror> ts) { |
| for (TypeMirror t: ts) |
| generateIfMissing(t); |
| } |
| |
| void generateIfMissing(TypeMirror t) { |
| if (t == null) |
| return; |
| if (t.getKind() == TypeKind.ERROR) { |
| Element e = ((ErrorType) t).asElement(); |
| if (e == null) |
| return; |
| if (e.asType().getKind() == TypeKind.ERROR) |
| createFile((TypeElement) e); |
| } |
| } |
| |
| void createFile(TypeElement e) { |
| try { |
| JavaFileObject fo = filer.createSourceFile(e.getSimpleName()); |
| Writer out = fo.openWriter(); |
| try { |
| switch (e.getKind()) { |
| case CLASS: |
| out.write("import java.util.*;\n"); |
| out.write("class " + signature(e) + " {\n"); |
| out.write(" public void run() {\n"); |
| out.write(" Class<?> c = getClass();\n"); |
| out.write(" System.out.println(\"class: \" + c);\n"); |
| out.write(" System.out.println(\"superclass: \" + c.getSuperclass());\n"); |
| out.write(" System.out.println(\"generic superclass: \" +c.getGenericSuperclass());\n"); |
| out.write(" System.out.println(\"interfaces: \" + Arrays.asList(c.getInterfaces()));\n"); |
| out.write(" System.out.println(\"generic interfaces: \" + Arrays.asList(c.getGenericInterfaces()));\n"); |
| out.write(" }\n"); |
| out.write("}\n"); |
| break; |
| case INTERFACE: |
| out.write("interface " + signature(e) + " {\n"); |
| out.write(" void run();\n"); |
| out.write("}\n"); |
| break; |
| } |
| } finally { |
| out.close(); |
| } |
| } catch (IOException ex) { |
| messager.printMessage(Diagnostic.Kind.ERROR, "problem writing file: " + ex); |
| } |
| } |
| |
| String signature(TypeElement e) { |
| System.err.println("signature: " + e + " " + e.getTypeParameters()); |
| StringBuilder sb = new StringBuilder(); |
| sb.append(e.getSimpleName()); |
| if (!e.getTypeParameters().isEmpty()) { |
| sb.append("<"); |
| String sep = ""; |
| for (TypeParameterElement t : e.getTypeParameters()) { |
| sb.append(sep); |
| sb.append(t); |
| sep = ","; |
| } |
| sb.append(">"); |
| } |
| return sb.toString(); |
| } |
| } |
| |