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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 | } | ||