org.slf4j.impl.StaticLoggerBinder 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 org.slf4j.ILoggerFactory;
import org.slf4j.LoggerFactory;
import org.slf4j.helpers.NOPLoggerFactory;
import org.slf4j.spi.LoggerFactoryBinder;
/**
* The binding of {@link LoggerFactory} class with an actual instance of
* {@link ILoggerFactory} is performed using information returned by this class.
*
* @author Ceki Gülcü
*/
public class StaticLoggerBinder implements LoggerFactoryBinder {
/**
* The unique instance of this class.
*
*/
private static final StaticLoggerBinder SINGLETON = new StaticLoggerBinder();
/**
* Return the singleton of this class.
*
* @return the StaticLoggerBinder singleton
*/
public static final StaticLoggerBinder getSingleton() {
return SINGLETON;
}
/**
* Declare the version of the SLF4J API this implementation is compiled against.
* The value of this field is modified with each major release.
*/
// to avoid constant folding by the compiler, this field must *not* be final
public static String REQUESTED_API_VERSION = "1.6.99"; // !final
private static final String loggerFactoryClassStr = NOPLoggerFactory.class.getName();
/** The ILoggerFactory instance returned by the {@link #getLoggerFactory} method
* should always be the same object
*/
private final ILoggerFactory loggerFactory;
private StaticLoggerBinder() {
loggerFactory = new NOPLoggerFactory();
}
public ILoggerFactory getLoggerFactory() {
return loggerFactory;
}
public String getLoggerFactoryClassStr() {
return loggerFactoryClassStr;
}
}