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.
*
* Copyright (C) 2019 Michael N. Lipp (http://www.mnl.de)
*
* 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.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.
*/
public final class StaticLoggerBinder implements LoggerFactoryBinder {
/**
* 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
@SuppressWarnings("PMD.FieldNamingConventions")
public static String REQUESTED_API_VERSION = "1.7.0"; // !final
@SuppressWarnings("PMD.FieldNamingConventions")
private static final String loggerFactoryClassStr
= NOPLoggerFactory.class.getName();
/**
* The unique instance of this class.
*
*/
private static final StaticLoggerBinder SINGLETON
= new StaticLoggerBinder();
/**
* The ILoggerFactory instance returned by the {@link #getLoggerFactory}
* method should always be the same object
*/
private final ILoggerFactory loggerFactory;
/**
* Return the singleton of this class.
*
* @return the StaticLoggerBinder singleton
*/
public static StaticLoggerBinder getSingleton() {
return SINGLETON;
}
private StaticLoggerBinder() {
loggerFactory = new Fwd2OsgiLoggerFactory();
}
public ILoggerFactory getLoggerFactory() {
return loggerFactory;
}
public String getLoggerFactoryClassStr() {
return loggerFactoryClassStr;
}
}