org.slf4j.helpers.SubstituteLoggerFactory Maven / Gradle / Ivy
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/**
* 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.helpers;
import java.util.ArrayList;
import java.util.List;
import org.slf4j.ILoggerFactory;
import org.slf4j.Logger;
/**
* SubstituteLoggerFactory is an trivial implementation of
* {@link ILoggerFactory} which always returns the unique instance of NOPLogger.
*
*
* It used as a temporary substitute for the real ILoggerFactory during its
* auto-configuration which may re-enter LoggerFactory to obtain logger
* instances. See also http://bugzilla.slf4j.org/show_bug.cgi?id=106
*
* @author Ceki Gülcü
*/
public class SubstituteLoggerFactory implements ILoggerFactory {
// keep a record of requested logger names
final List loggerNameList = new ArrayList();
public Logger getLogger(String name) {
synchronized (loggerNameList) {
loggerNameList.add(name);
}
return NOPLogger.NOP_LOGGER;
}
public List getLoggerNameList() {
List copy = new ArrayList();
synchronized (loggerNameList) {
copy.addAll(loggerNameList);
}
return copy;
}
}