/* * 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 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 */ class Logging implements LoggingMXBean { private static LogManager logManager = LogManager.getLogManager(); /** Constructor of Logging which is the implementation class * of LoggingMXBean. */ Logging() { } public List getLoggerNames() { Enumeration loggers = logManager.getLoggerNames(); ArrayList array = new ArrayList<>(); for (; loggers.hasMoreElements();) { array.add(loggers.nextElement()); } return array; } private static String EMPTY_STRING = ""; 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(); } } 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); } 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(); } } }