/* | |
* Licensed to the Apache Software Foundation (ASF) under one or more | |
* contributor license agreements. See the NOTICE file distributed with | |
* this work for additional information regarding copyright ownership. | |
* The ASF 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.apache.logging.slf4j; | |
import java.net.URI; | |
import org.apache.logging.log4j.spi.LoggerContext; | |
import org.apache.logging.log4j.spi.LoggerContextFactory; | |
import org.apache.logging.log4j.status.StatusLogger; | |
import org.apache.logging.log4j.util.LoaderUtil; | |
/** | |
* | |
*/ | |
public class SLF4JLoggerContextFactory implements LoggerContextFactory { | |
private static final StatusLogger LOGGER = StatusLogger.getLogger(); | |
private static final LoggerContext context = new SLF4JLoggerContext(); | |
public SLF4JLoggerContextFactory() { | |
// LOG4J2-230, LOG4J2-204 (improve error reporting when misconfigured) | |
boolean misconfigured = false; | |
try { | |
LoaderUtil.loadClass("org.slf4j.helpers.Log4jLoggerFactory"); | |
misconfigured = true; | |
} catch (final ClassNotFoundException classNotFoundIsGood) { | |
LOGGER.debug("org.slf4j.helpers.Log4jLoggerFactory is not on classpath. Good!"); | |
} | |
if (misconfigured) { | |
throw new IllegalStateException("slf4j-impl jar is mutually exclusive with log4j-to-slf4j jar " | |
+ "(the first routes calls from SLF4J to Log4j, the second from Log4j to SLF4J)"); | |
} | |
} | |
@Override | |
public LoggerContext getContext(final String fqcn, final ClassLoader loader, final Object externalContext, | |
final boolean currentContext) { | |
return context; | |
} | |
@Override | |
public LoggerContext getContext(final String fqcn, final ClassLoader loader, final Object externalContext, | |
final boolean currentContext, final URI configLocation, final String name) { | |
return context; | |
} | |
@Override | |
public void removeContext(final LoggerContext ignored) { | |
} | |
@Override | |
public boolean isClassLoaderDependent() { | |
// context is always used | |
return false; | |
} | |
} |