| /* |
| * Copyright (c) 2012, 2015, 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.util.*; |
| |
| import javax.annotation.processing.*; |
| import javax.lang.model.*; |
| import javax.lang.model.element.*; |
| |
| import com.sun.source.doctree.DocCommentTree; |
| import com.sun.source.doctree.ErroneousTree; |
| import com.sun.source.tree.ClassTree; |
| import com.sun.source.tree.MethodTree; |
| import com.sun.source.tree.VariableTree; |
| import com.sun.source.util.DocTreeScanner; |
| import com.sun.source.util.DocTrees; |
| import com.sun.source.util.TreePath; |
| import com.sun.source.util.TreePathScanner; |
| import com.sun.source.util.TreeScanner; |
| import java.io.PrintWriter; |
| import javax.tools.Diagnostic; |
| |
| /** |
| * Standard annotation processor for use by examples to |
| * scan DocCommentTree nodes looking for ErroneousTree, |
| * on which to call {@code getMessage}. |
| */ |
| @SupportedAnnotationTypes("*") |
| public class DocCommentProcessor extends AbstractProcessor { |
| @Override |
| public SourceVersion getSupportedSourceVersion() { |
| return SourceVersion.latest(); |
| } |
| |
| @Override |
| public void init(ProcessingEnvironment pEnv) { |
| super.init(pEnv); |
| trees = DocTrees.instance(pEnv); |
| messager = pEnv.getMessager(); |
| } |
| |
| @Override |
| public boolean process(Set<? extends TypeElement> annos, RoundEnvironment rEnv) { |
| for (Element e : rEnv.getRootElements()) { |
| new DocCommentScanner().scan(e); |
| } |
| return true; |
| } |
| |
| class DocCommentScanner extends TreePathScanner<Void,Void> { |
| public void scan(Element e) { |
| scan(trees.getPath(e), null); |
| } |
| |
| @Override |
| public Void visitClass(ClassTree tree, Void ignore) { |
| check(); |
| return super.visitClass(tree, ignore); |
| } |
| |
| @Override |
| public Void visitMethod(MethodTree tree, Void ignore) { |
| check(); |
| return super.visitMethod(tree, ignore); |
| } |
| |
| @Override |
| public Void visitVariable(VariableTree tree, Void ignore) { |
| check(); |
| return super.visitVariable(tree, ignore); |
| } |
| |
| private void check() { |
| DocCommentTree dc = trees.getDocCommentTree(getCurrentPath()); |
| if (dc == null) |
| return; |
| |
| DocTreeScanner<Void, Void> s = new DocTreeScanner<Void, Void>() { |
| @Override |
| public Void visitErroneous(ErroneousTree tree, Void ignore) { |
| messager.printMessage(Diagnostic.Kind.NOTE, tree.getDiagnostic().getMessage(null)); |
| return null; |
| } |
| }; |
| |
| s.scan(dc, null); |
| } |
| |
| } |
| |
| private DocTrees trees; |
| private Messager messager; |
| } |