org.slf4j.impl.StaticLoggerBinder Maven / Gradle / Ivy
/*
* Copyright 2010-2013 Ning, Inc.
* Copyright 2014 Groupon, Inc
* Copyright 2014 The Billing Project, LLC
*
* The Billing Project licenses this file to you 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.osgi.service.log.LogService;
import org.slf4j.ILoggerFactory;
import org.slf4j.spi.LoggerFactoryBinder;
// According to https://github.com/killbill/killbill/commit/33ab444b9ce4a5f5a7d4f92235a78ea32a8d9c61,
// this used to be needed for OSGI bundles relying on third-party libraries using slf4j (e.g.
// config-magic). Unclear if it's still really needed though.
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 StaticLoggerBinder getSingleton() {
return SINGLETON;
}
/**
* Declare the version of the SLF4J API this implementation is compiled
* against. The value of this field is usually modified with each release.
*/
// to avoid constant folding by the compiler, this field must *not* be final
public static String REQUESTED_API_VERSION = "1.7.2"; // !final
private static final String loggerFactoryClassStr = OSGISlf4jLoggerFactory.class.getName();
/**
* The ILoggerFactory instance returned by the {@link #getLoggerFactory}
* method should always be the same object
*/
private final OSGISlf4jLoggerFactory loggerFactory;
private StaticLoggerBinder() {
loggerFactory = new OSGISlf4jLoggerFactory();
}
public ILoggerFactory getLoggerFactory() {
return loggerFactory;
}
public String getLoggerFactoryClassStr() {
return loggerFactoryClassStr;
}
public void setLogService(final LogService logService) {
loggerFactory.setDelegate(logService);
}
}