| /* |
| * Copyright (c) 2003, 2013, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| */ |
| |
| package java.util.logging; |
| |
| import java.util.Enumeration; |
| import java.util.List; |
| import java.util.ArrayList; |
| |
| /** |
| * Logging is the implementation class of LoggingMXBean. |
| * |
| * The {@code LoggingMXBean} interface provides a standard |
| * method for management access to the individual |
| * {@code Logger} objects available at runtime. |
| * |
| * @author Ron Mann |
| * @author Mandy Chung |
| * @since 1.5 |
| * |
| * @see javax.management |
| * @see Logger |
| * @see LogManager |
| */ |
| @SuppressWarnings("deprecation") // implements LoggingMXBean |
| final class Logging implements LoggingMXBean { |
| |
| private static LogManager logManager = LogManager.getLogManager(); |
| |
| /** Constructor of Logging which is the implementation class |
| * of LoggingMXBean. |
| */ |
| private Logging() { |
| } |
| |
| @Override |
| public List<String> getLoggerNames() { |
| Enumeration<String> loggers = logManager.getLoggerNames(); |
| ArrayList<String> array = new ArrayList<>(); |
| |
| for (; loggers.hasMoreElements();) { |
| array.add(loggers.nextElement()); |
| } |
| return array; |
| } |
| |
| private static String EMPTY_STRING = ""; |
| @Override |
| public String getLoggerLevel(String loggerName) { |
| Logger l = logManager.getLogger(loggerName); |
| if (l == null) { |
| return null; |
| } |
| |
| Level level = l.getLevel(); |
| if (level == null) { |
| return EMPTY_STRING; |
| } else { |
| return level.getLevelName(); |
| } |
| } |
| |
| @Override |
| public void setLoggerLevel(String loggerName, String levelName) { |
| if (loggerName == null) { |
| throw new NullPointerException("loggerName is null"); |
| } |
| |
| Logger logger = logManager.getLogger(loggerName); |
| if (logger == null) { |
| throw new IllegalArgumentException("Logger " + loggerName + |
| " does not exist"); |
| } |
| |
| Level level = null; |
| if (levelName != null) { |
| // parse will throw IAE if logLevel is invalid |
| level = Level.findLevel(levelName); |
| if (level == null) { |
| throw new IllegalArgumentException("Unknown level \"" + levelName + "\""); |
| } |
| } |
| |
| logger.setLevel(level); |
| } |
| |
| @Override |
| public String getParentLoggerName( String loggerName ) { |
| Logger l = logManager.getLogger( loggerName ); |
| if (l == null) { |
| return null; |
| } |
| |
| Logger p = l.getParent(); |
| if (p == null) { |
| // root logger |
| return EMPTY_STRING; |
| } else { |
| return p.getName(); |
| } |
| } |
| |
| static Logging getInstance() { |
| return INSTANCE; |
| } |
| |
| private static final Logging INSTANCE = new Logging(); |
| |
| } |