4c481aa87c
Reviewed-by: jjg
118 lines
4.1 KiB
Java
118 lines
4.1 KiB
Java
/*
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* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package crules;
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import java.text.MessageFormat;
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import java.util.Locale;
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import java.util.ResourceBundle;
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import javax.lang.model.element.TypeElement;
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import javax.tools.JavaFileObject;
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import com.sun.source.tree.Tree;
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import com.sun.source.util.JavacTask;
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import com.sun.source.util.Plugin;
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import com.sun.source.util.TaskEvent;
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import com.sun.source.util.TaskListener;
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import com.sun.source.util.Trees;
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import com.sun.tools.javac.api.BasicJavacTask;
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import com.sun.tools.javac.tree.JCTree;
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import com.sun.tools.javac.tree.TreeScanner;
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import com.sun.tools.javac.util.Context;
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import com.sun.tools.javac.util.Log;
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import static com.sun.source.util.TaskEvent.Kind;
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public abstract class AbstractCodingRulesAnalyzer implements Plugin {
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protected Log log;
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protected Trees trees;
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protected TreeScanner treeVisitor;
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protected Kind eventKind;
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protected Messages messages;
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public void init(JavacTask task, String... args) {
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BasicJavacTask impl = (BasicJavacTask)task;
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Context context = impl.getContext();
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log = Log.instance(context);
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trees = Trees.instance(task);
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messages = new Messages();
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task.addTaskListener(new PostAnalyzeTaskListener());
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}
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public class PostAnalyzeTaskListener implements TaskListener {
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@Override
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public void started(TaskEvent taskEvent) {}
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@Override
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public void finished(TaskEvent taskEvent) {
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if (taskEvent.getKind().equals(eventKind)) {
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TypeElement typeElem = taskEvent.getTypeElement();
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Tree tree = trees.getTree(typeElem);
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if (tree != null) {
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JavaFileObject prevSource = log.currentSourceFile();
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try {
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log.useSource(taskEvent.getCompilationUnit().getSourceFile());
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treeVisitor.scan((JCTree)tree);
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} finally {
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log.useSource(prevSource);
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}
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}
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}
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}
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}
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class Messages {
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ResourceBundle bundle;
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Messages() {
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String name = getClass().getPackage().getName() + ".resources.crules";
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bundle = ResourceBundle.getBundle(name, Locale.ENGLISH);
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}
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public void error(JCTree tree, String code, Object... args) {
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String msg = (code == null) ? (String) args[0] : localize(code, args);
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log.error(tree, "proc.messager", msg.toString());
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}
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private String localize(String code, Object... args) {
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String msg = bundle.getString(code);
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if (msg == null) {
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StringBuilder sb = new StringBuilder();
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sb.append("message file broken: code=").append(code);
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if (args.length > 0) {
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sb.append(" arguments={0}");
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for (int i = 1; i < args.length; i++) {
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sb.append(", {").append(i).append("}");
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}
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}
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msg = sb.toString();
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}
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return MessageFormat.format(msg, args);
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}
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}
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}
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