2 * jFCPlib-high-level-client - Logging.java -
3 * Copyright © 2008 David Roden
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 package net.pterodactylus.util.logging;
22 import java.util.ArrayList;
23 import java.util.Collections;
24 import java.util.List;
25 import java.util.logging.Handler;
26 import java.util.logging.Level;
27 import java.util.logging.LogRecord;
28 import java.util.logging.Logger;
33 * @author David ‘Bombe’ Roden <bombe@freenetproject.org>
36 public class Logging {
38 /** The log handler. */
39 private static final LogHandler logHandler = new LogHandler();
42 logHandler.setLevel(Level.ALL);
45 /** The root name of the hierarchy. */
46 private static String hierarchyRootName;
49 * Adds a listener to the log handler.
51 * @param loggingListener
54 public static void addLoggingListener(LoggingListener loggingListener) {
55 logHandler.addLoggingListener(loggingListener);
59 * Removes a listener from the log handler.
61 * @param loggingListener
62 * The listener to remove
64 public static void removeLoggingListener(LoggingListener loggingListener) {
65 logHandler.removeLoggingListener(loggingListener);
69 * Sets up logging and installs the log handler.
71 * @param hierarchyName
72 * The name of the hierarchy root logger
74 public static void setup(String hierarchyName) {
75 hierarchyRootName = hierarchyName;
76 Logger rootLogger = Logger.getLogger(hierarchyName);
77 rootLogger.addHandler(logHandler);
78 rootLogger.setUseParentHandlers(false);
79 rootLogger.setLevel(Level.ALL);
83 * Returns a named logger from the jSite hierarchy.
86 * The name of the logger
89 public static Logger getLogger(String name) {
90 Logger logger = Logger.getLogger(hierarchyRootName + "." + name);
95 * The log handler simply forwards every log message it receives to all
96 * registered listeners.
98 * @see LoggingListener
99 * @author David ‘Bombe’ Roden <bombe@freenetproject.org>
102 private static class LogHandler extends Handler {
105 * Package-private constructor.
111 /** The list of the listeners. */
112 private final List<LoggingListener> loggingListeners = Collections.synchronizedList(new ArrayList<LoggingListener>());
119 * Adds a listener to the log handler.
121 * @param loggingListener
122 * The listener to add
124 public void addLoggingListener(LoggingListener loggingListener) {
125 loggingListeners.add(loggingListener);
129 * Removes a listener from the log handler.
131 * @param loggingListener
132 * The listener to remove
134 public void removeLoggingListener(LoggingListener loggingListener) {
135 loggingListeners.remove(loggingListener);
139 * Notifies all listeners that a log record was received.
142 * The received log record
144 private void fireLogged(LogRecord logRecord) {
145 for (LoggingListener loggingListener: loggingListeners) {
146 loggingListener.logged(logRecord);
158 public void close() throws SecurityException {
166 public void flush() {
174 public void publish(LogRecord logRecord) {
175 fireLogged(logRecord);