1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/make/tools/crules/AbstractCodingRulesAnalyzer.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,117 @@
1.4 +/*
1.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +package crules;
1.28 +
1.29 +import java.text.MessageFormat;
1.30 +import java.util.Locale;
1.31 +import java.util.ResourceBundle;
1.32 +
1.33 +import javax.lang.model.element.TypeElement;
1.34 +import javax.tools.JavaFileObject;
1.35 +
1.36 +import com.sun.source.tree.Tree;
1.37 +import com.sun.source.util.JavacTask;
1.38 +import com.sun.source.util.Plugin;
1.39 +import com.sun.source.util.TaskEvent;
1.40 +import com.sun.source.util.TaskListener;
1.41 +import com.sun.source.util.Trees;
1.42 +import com.sun.tools.javac.api.BasicJavacTask;
1.43 +import com.sun.tools.javac.tree.JCTree;
1.44 +import com.sun.tools.javac.tree.TreeScanner;
1.45 +import com.sun.tools.javac.util.Context;
1.46 +import com.sun.tools.javac.util.Log;
1.47 +
1.48 +import static com.sun.source.util.TaskEvent.Kind;
1.49 +
1.50 +public abstract class AbstractCodingRulesAnalyzer implements Plugin {
1.51 +
1.52 + protected Log log;
1.53 + protected Trees trees;
1.54 + protected TreeScanner treeVisitor;
1.55 + protected Kind eventKind;
1.56 + protected Messages messages;
1.57 +
1.58 + public void init(JavacTask task, String... args) {
1.59 + BasicJavacTask impl = (BasicJavacTask)task;
1.60 + Context context = impl.getContext();
1.61 + log = Log.instance(context);
1.62 + trees = Trees.instance(task);
1.63 + messages = new Messages();
1.64 + task.addTaskListener(new PostAnalyzeTaskListener());
1.65 + }
1.66 +
1.67 + public class PostAnalyzeTaskListener implements TaskListener {
1.68 +
1.69 + @Override
1.70 + public void started(TaskEvent taskEvent) {}
1.71 +
1.72 + @Override
1.73 + public void finished(TaskEvent taskEvent) {
1.74 + if (taskEvent.getKind().equals(eventKind)) {
1.75 + TypeElement typeElem = taskEvent.getTypeElement();
1.76 + Tree tree = trees.getTree(typeElem);
1.77 + if (tree != null) {
1.78 + JavaFileObject prevSource = log.currentSourceFile();
1.79 + try {
1.80 + log.useSource(taskEvent.getCompilationUnit().getSourceFile());
1.81 + treeVisitor.scan((JCTree)tree);
1.82 + } finally {
1.83 + log.useSource(prevSource);
1.84 + }
1.85 + }
1.86 + }
1.87 + }
1.88 + }
1.89 +
1.90 + class Messages {
1.91 + ResourceBundle bundle;
1.92 +
1.93 + Messages() {
1.94 + String name = getClass().getPackage().getName() + ".resources.crules";
1.95 + bundle = ResourceBundle.getBundle(name, Locale.ENGLISH);
1.96 + }
1.97 +
1.98 + public void error(JCTree tree, String code, Object... args) {
1.99 + String msg = (code == null) ? (String) args[0] : localize(code, args);
1.100 + log.error(tree, "proc.messager", msg.toString());
1.101 + }
1.102 +
1.103 + private String localize(String code, Object... args) {
1.104 + String msg = bundle.getString(code);
1.105 + if (msg == null) {
1.106 + StringBuilder sb = new StringBuilder();
1.107 + sb.append("message file broken: code=").append(code);
1.108 + if (args.length > 0) {
1.109 + sb.append(" arguments={0}");
1.110 + for (int i = 1; i < args.length; i++) {
1.111 + sb.append(", {").append(i).append("}");
1.112 + }
1.113 + }
1.114 + msg = sb.toString();
1.115 + }
1.116 + return MessageFormat.format(msg, args);
1.117 + }
1.118 + }
1.119 +
1.120 +}
