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| 1 | /* | ||
| 2 | * Copyright (c) 2009, 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.lang.management; | ||
| 27 | |||
| 28 | /** | ||
| 29 | * The management interface for the {@linkplain java.util.logging logging} facility. | ||
| 30 | * | ||
| 31 | * <p>There is a single global instance of the <tt>PlatformLoggingMXBean</tt>. | ||
| 32 | * The {@link java.lang.management.ManagementFactory#getPlatformMXBean(Class) | ||
| 33 | * ManagementFactory.getPlatformMXBean} method can be used to obtain | ||
| 34 | * the {@code PlatformLoggingMXBean} object as follows: | ||
| 35 | * <pre> | ||
| 36 | * PlatformLoggingMXBean logging = ManagementFactory.getPlatformMXBean(PlatformLoggingMXBean.class); | ||
| 37 | * </pre> | ||
| 38 | * The {@code PlatformLoggingMXBean} object is also registered with the | ||
| 39 | * platform {@linkplain java.lang.management.ManagementFactory#getPlatformMBeanServer | ||
| 40 | * MBeanServer}. | ||
| 41 | * The {@link javax.management.ObjectName ObjectName} for uniquely | ||
| 42 | * identifying the {@code PlatformLoggingMXBean} within an MBeanServer is: | ||
| 43 | * <pre> | ||
| 44 | * {@link java.util.logging.LogManager#LOGGING_MXBEAN_NAME java.util.logging:type=Logging} | ||
| 45 | * </pre> | ||
| 46 | * | ||
| 47 | * <p>The instance registered in the platform <tt>MBeanServer</tt> with | ||
| 48 | * this {@code ObjectName} implements all attributes defined by | ||
| 49 | * {@link java.util.logging.LoggingMXBean}. | ||
| 50 | * | ||
| 51 | * @since 1.7 | ||
| 52 | */ | ||
| 53 | public interface PlatformLoggingMXBean extends PlatformManagedObject { | ||
| 54 | |||
| 55 | /** | ||
| 56 | * Returns the list of the currently registered | ||
| 57 | * {@linkplain java.util.logging.Logger logger} names. This method | ||
| 58 | * calls {@link java.util.logging.LogManager#getLoggerNames} and | ||
| 59 | * returns a list of the logger names. | ||
| 60 | * | ||
| 61 | * @return A list of {@code String} each of which is a | ||
| 62 | * currently registered {@code Logger} name. | ||
| 63 | */ | ||
| 64 | java.util.List<String> getLoggerNames(); | ||
| 65 | |||
| 66 | /** | ||
| 67 | * Gets the name of the log {@linkplain java.util.logging.Logger#getLevel | ||
| 68 | * level} associated with the specified logger. | ||
| 69 | * If the specified logger does not exist, {@code null} | ||
| 70 | * is returned. | ||
| 71 | * This method first finds the logger of the given name and | ||
| 72 | * then returns the name of the log level by calling: | ||
| 73 | * <blockquote> | ||
| 74 | * {@link java.util.logging.Logger#getLevel | ||
| 75 | * Logger.getLevel()}.{@link java.util.logging.Level#getName getName()}; | ||
| 76 | * </blockquote> | ||
| 77 | * | ||
| 78 | * <p> | ||
| 79 | * If the {@code Level} of the specified logger is {@code null}, | ||
| 80 | * which means that this logger's effective level is inherited | ||
| 81 | * from its parent, an empty string will be returned. | ||
| 82 | * | ||
| 83 | * @param loggerName The name of the {@code Logger} to be retrieved. | ||
| 84 | * | ||
| 85 | * @return The name of the log level of the specified logger; or | ||
| 86 | * an empty string if the log level of the specified logger | ||
| 87 | * is {@code null}. If the specified logger does not | ||
| 88 | * exist, {@code null} is returned. | ||
| 89 | * | ||
| 90 | * @see java.util.logging.Logger#getLevel | ||
| 91 | */ | ||
| 92 | String getLoggerLevel(String loggerName); | ||
| 93 | |||
| 94 | /** | ||
| 95 | * Sets the specified logger to the specified new | ||
| 96 | * {@linkplain java.util.logging.Logger#setLevel level}. | ||
| 97 | * If the {@code levelName} is not {@code null}, the level | ||
| 98 | * of the specified logger is set to the parsed | ||
| 99 | * {@link java.util.logging.Level Level} | ||
| 100 | * matching the {@code levelName}. | ||
| 101 | * If the {@code levelName} is {@code null}, the level | ||
| 102 | * of the specified logger is set to {@code null} and | ||
| 103 | * the effective level of the logger is inherited from | ||
| 104 | * its nearest ancestor with a specific (non-null) level value. | ||
| 105 | * | ||
| 106 | * @param loggerName The name of the {@code Logger} to be set. | ||
| 107 | * Must be non-null. | ||
| 108 | * @param levelName The name of the level to set on the specified logger, | ||
| 109 | * or {@code null} if setting the level to inherit | ||
| 110 | * from its nearest ancestor. | ||
| 111 | * | ||
| 112 | * @throws IllegalArgumentException if the specified logger | ||
| 113 | * does not exist, or {@code levelName} is not a valid level name. | ||
| 114 | * | ||
| 115 | * @throws SecurityException if a security manager exists and if | ||
| 116 | * the caller does not have LoggingPermission("control"). | ||
| 117 | * | ||
| 118 | * @see java.util.logging.Logger#setLevel | ||
| 119 | */ | ||
| 120 | void setLoggerLevel(String loggerName, String levelName); | ||
| 121 | |||
| 122 | /** | ||
| 123 | * Returns the name of the | ||
| 124 | * {@linkplain java.util.logging.Logger#getParent parent} | ||
| 125 | * for the specified logger. | ||
| 126 | * If the specified logger does not exist, {@code null} is returned. | ||
| 127 | * If the specified logger is the root {@code Logger} in the namespace, | ||
| 128 | * the result will be an empty string. | ||
| 129 | * | ||
| 130 | * @param loggerName The name of a {@code Logger}. | ||
| 131 | * | ||
| 132 | * @return the name of the nearest existing parent logger; | ||
| 133 | * an empty string if the specified logger is the root logger. | ||
| 134 | * If the specified logger does not exist, {@code null} | ||
| 135 | * is returned. | ||
| 136 | */ | ||
| 137 | String getParentLoggerName(String loggerName); | ||
| 138 | } | ||