Java tutorial
/* * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.gflogger.log4j; import org.apache.commons.logging.LogFactory; import org.apache.log4j.BasicConfigurator; import org.apache.log4j.LogManager; import org.gflogger.FormattedGFLogEntry; import org.gflogger.GFLogEntry; import org.gflogger.GFLogger; import org.gflogger.LocalLogEntry; import org.gflogger.LogLevel; import org.gflogger.LoggerService; import java.util.HashMap; import java.util.Map; /** * Log4jLoggerServiceImpl * * @author Vladimir Dolzhenko, vladimir.dolzhenko@gmail.com */ public class Log4jLoggerServiceImpl implements LoggerService { private final ThreadLocal<Map<String, Log4jEntry>> entries; private final LogLevel level; public Log4jLoggerServiceImpl() { this(LogLevel.DEBUG); } public Log4jLoggerServiceImpl(final LogLevel level) { this.level = level; this.entries = new ThreadLocal<Map<String, Log4jEntry>>() { @Override protected Map<String, Log4jEntry> initialValue() { return new HashMap<>(); } }; BasicConfigurator.configure(); } @Override public LogLevel getLevel() { return level; } @Override public GFLogEntry log(LogLevel level, String categoryName, final long appenderMask) { final Map<String, Log4jEntry> map = entries.get(); Log4jEntry entry = map.get(categoryName); if (entry == null) { entry = new Log4jEntry(LogFactory.getLog(categoryName)); map.put(categoryName, entry); } entry.setLogLevel(level); entry.reset(); return entry; } @Override public FormattedGFLogEntry formattedLog(LogLevel level, String categoryName, String pattern, final long appenderMask) { final Map<String, Log4jEntry> map = entries.get(); Log4jEntry entry = map.get(categoryName); if (entry == null) { entry = new Log4jEntry(LogFactory.getLog(categoryName)); map.put(categoryName, entry); } entry.reset(); entry.setPattern(pattern); entry.setLogLevel(level); return entry; } @Override public GFLogger[] lookupLoggers(String name) { return GFLogger.EMPTY; } @Override public void entryFlushed(LocalLogEntry localEntry) { // nothing } @Override public void stop() { LogManager.shutdown(); } }