| 1 | // Jomic - a viewer for comic book archives. |
| 2 | // Copyright (C) 2004-2011 Thomas Aglassinger |
| 3 | // |
| 4 | // This program is free software: you can redistribute it and/or modify |
| 5 | // it under the terms of the GNU General Public License as published by |
| 6 | // the Free Software Foundation, either version 3 of the License, or |
| 7 | // (at your option) any later version. |
| 8 | // |
| 9 | // This program is distributed in the hope that it will be useful, |
| 10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | // GNU General Public License for more details. |
| 13 | // |
| 14 | // You should have received a copy of the GNU General Public License |
| 15 | // along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 16 | package net.sf.jomic.common; |
| 17 | |
| 18 | import java.util.Iterator; |
| 19 | import java.util.Map; |
| 20 | import java.util.Properties; |
| 21 | import java.util.StringTokenizer; |
| 22 | |
| 23 | import org.apache.log4j.ConsoleAppender; |
| 24 | import org.apache.log4j.Level; |
| 25 | import org.apache.log4j.Logger; |
| 26 | import org.apache.log4j.PatternLayout; |
| 27 | |
| 28 | /** |
| 29 | * Configurator for logging. This is the simplified version of log4j's BasicConfigurator that works |
| 30 | * with log4j-core. |
| 31 | * |
| 32 | * @author Thomas Aglassinger |
| 33 | */ |
| 34 | // TODO: get rid of JomicConfigurator, it was only useful for log4j-core. |
| 35 | public final class JomicConfigurator |
| 36 | { |
| 37 | private static final String LOG4J_APPENDER_STDOUT = "log4j.appender.stdout"; |
| 38 | private static final String LOGGER_PREFIX = "log4j.logger."; |
| 39 | |
| 40 | private static final String ORG_APACHE_LOG4J_CONSOLEAPPENDER = "org.apache.log4j.ConsoleAppender"; |
| 41 | |
| 42 | private JomicConfigurator() { |
| 43 | super(); |
| 44 | } |
| 45 | |
| 46 | public static void setLevel(Properties properties) { |
| 47 | assert properties != null; |
| 48 | Iterator rider = properties.entrySet().iterator(); |
| 49 | Logger root = Logger.getRootLogger(); |
| 50 | |
| 51 | while (rider.hasNext()) { |
| 52 | Map.Entry entry = (Map.Entry) rider.next(); |
| 53 | String key = (String) entry.getKey(); |
| 54 | String value = (String) entry.getValue(); |
| 55 | |
| 56 | if (key.equals("log4j.rootLogger")) { |
| 57 | StringTokenizer tokenizer = new StringTokenizer(value, ","); |
| 58 | |
| 59 | if (tokenizer.hasMoreTokens()) { |
| 60 | String level = tokenizer.nextToken(); |
| 61 | |
| 62 | root.setLevel(Level.toLevel(level)); |
| 63 | } else { |
| 64 | logSetLevelWarning(key, "using appender \"stdout\""); |
| 65 | } |
| 66 | } else if (key.startsWith(LOGGER_PREFIX)) { |
| 67 | String loggerName = key.substring(LOGGER_PREFIX.length()); |
| 68 | Logger logger = Logger.getLogger(loggerName); |
| 69 | |
| 70 | logger.setLevel(Level.toLevel(value)); |
| 71 | } else if (key.equals(LOG4J_APPENDER_STDOUT)) { |
| 72 | if (!value.equals(ORG_APACHE_LOG4J_CONSOLEAPPENDER)) { |
| 73 | logSetLevelWarning(key, "replacing \"" |
| 74 | + ORG_APACHE_LOG4J_CONSOLEAPPENDER + "\" by \"" |
| 75 | + value + "\""); |
| 76 | } |
| 77 | } else { |
| 78 | logSetLevelWarning(key, "ignoring unknown key"); |
| 79 | } |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | public static void configure() { |
| 84 | Logger root = Logger.getRootLogger(); |
| 85 | |
| 86 | root.addAppender(new ConsoleAppender(new PatternLayout("%d [%t] %-5p %c - %m%n"))); |
| 87 | } |
| 88 | |
| 89 | private static void logSetLevelWarning(String key, String message) { |
| 90 | Logger root = Logger.getRootLogger(); |
| 91 | |
| 92 | root.warn("logger setup key \"" + key + "\": " + message); |
| 93 | } |
| 94 | } |