J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package java.util.logging; |
| 27 | |
| 28 | import java.util.Enumeration; |
| 29 | import java.util.List; |
| 30 | import java.util.ArrayList; |
| 31 | |
| 32 | /** |
| 33 | * Logging is the implementation class of LoggingMXBean. |
| 34 | * |
| 35 | * The <tt>LoggingMXBean</tt> interface provides a standard |
| 36 | * method for management access to the individual |
| 37 | * java.util.Logger objects available at runtime. |
| 38 | * |
| 39 | * @author Ron Mann |
| 40 | * @author Mandy Chung |
| 41 | * @since 1.5 |
| 42 | * |
| 43 | * @see javax.management |
| 44 | * @see java.util.Logger |
| 45 | * @see java.util.LogManager |
| 46 | */ |
| 47 | class Logging implements LoggingMXBean { |
| 48 | |
| 49 | private static LogManager logManager = LogManager.getLogManager(); |
| 50 | |
| 51 | /** Constructor of Logging which is the implementation class |
| 52 | * of LoggingMXBean. |
| 53 | */ |
| 54 | Logging() { |
| 55 | } |
| 56 | |
| 57 | public List<String> getLoggerNames() { |
| 58 | Enumeration loggers = logManager.getLoggerNames(); |
| 59 | ArrayList<String> array = new ArrayList<String>(); |
| 60 | |
| 61 | for (; loggers.hasMoreElements();) { |
| 62 | array.add((String) loggers.nextElement()); |
| 63 | } |
| 64 | return array; |
| 65 | } |
| 66 | |
| 67 | private static String EMPTY_STRING = ""; |
| 68 | public String getLoggerLevel(String loggerName) { |
| 69 | Logger l = logManager.getLogger(loggerName); |
| 70 | if (l == null) { |
| 71 | return null; |
| 72 | } |
| 73 | |
| 74 | Level level = l.getLevel(); |
| 75 | if (level == null) { |
| 76 | return EMPTY_STRING; |
| 77 | } else { |
| 78 | return level.getName(); |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | public void setLoggerLevel(String loggerName, String levelName) { |
| 83 | if (loggerName == null) { |
| 84 | throw new NullPointerException("loggerName is null"); |
| 85 | } |
| 86 | |
| 87 | Logger logger = logManager.getLogger(loggerName); |
| 88 | |
| 89 | if (logger == null) { |
| 90 | throw new IllegalArgumentException("Logger " + loggerName + |
| 91 | "does not exist"); |
| 92 | } |
| 93 | |
| 94 | Level level = null; |
| 95 | if (levelName != null) { |
| 96 | // parse will throw IAE if logLevel is invalid |
| 97 | level = Level.parse(levelName); |
| 98 | } |
| 99 | |
| 100 | logger.setLevel(level); |
| 101 | } |
| 102 | |
| 103 | public String getParentLoggerName( String loggerName ) { |
| 104 | Logger l = logManager.getLogger( loggerName ); |
| 105 | if (l == null) { |
| 106 | return null; |
| 107 | } |
| 108 | |
| 109 | Logger p = l.getParent(); |
| 110 | if (p == null) { |
| 111 | // root logger |
| 112 | return EMPTY_STRING; |
| 113 | } else { |
| 114 | return p.getName(); |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | } |