org.slf4j.impl.SimpleLoggerFactory Maven / Gradle / Ivy
/**
* Copyright (c) 2004-2011 QOS.ch
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
package org.slf4j.impl;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import org.slf4j.Logger;
import org.slf4j.ILoggerFactory;
/**
* An implementation of {@link ILoggerFactory} which always returns
* {@link SimpleLogger} instances.
*
* @author Ceki Gülcü
*/
public class SimpleLoggerFactory implements ILoggerFactory {
ConcurrentMap loggerMap;
public SimpleLoggerFactory() {
loggerMap = new ConcurrentHashMap();
}
/**
* Return an appropriate {@link SimpleLogger} instance by name.
*/
public Logger getLogger(String name) {
Logger simpleLogger = loggerMap.get(name);
if (simpleLogger != null) {
return simpleLogger;
} else {
Logger newInstance = new SimpleLogger(name);
Logger oldInstance = loggerMap.putIfAbsent(name, newInstance);
return oldInstance == null ? newInstance : oldInstance;
}
}
/**
* Clear the internal logger cache.
*
* This method is intended to be called by classes (in the same package) for
* testing purposes. This method is internal. It can be modified, renamed or
* removed at any time without notice.
*
* You are strongly discouraged from calling this method in production code.
*/
void reset() {
loggerMap.clear();
}
}