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| 1 | +/* | |
| 2 | + * Copyright (c) 2003, 2010, Oracle and/or its affiliates. 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. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * 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<>(); | |
| 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 | +} | |