001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache license, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the license for the specific language governing permissions and
015 * limitations under the license.
016 */
017package org.apache.logging.slf4j;
018
019import org.apache.logging.log4j.message.MessageFactory;
020import org.apache.logging.log4j.spi.ExtendedLogger;
021import org.apache.logging.log4j.spi.LoggerContext;
022import org.apache.logging.log4j.spi.LoggerRegistry;
023import org.slf4j.LoggerFactory;
024
025public class SLF4JLoggerContext implements LoggerContext {
026    private final LoggerRegistry<ExtendedLogger> loggerRegistry = new LoggerRegistry<>();
027
028    @Override
029    public Object getExternalContext() {
030        return null;
031    }
032
033    @Override
034    public ExtendedLogger getLogger(final String name) {
035        if (!loggerRegistry.hasLogger(name)) {
036            loggerRegistry.putIfAbsent(name, null, new SLF4JLogger(name, LoggerFactory.getLogger(name)));
037        }
038        return loggerRegistry.getLogger(name);
039    }
040
041    @Override
042    public ExtendedLogger getLogger(final String name, final MessageFactory messageFactory) {
043        if (!loggerRegistry.hasLogger(name, messageFactory)) {
044            loggerRegistry.putIfAbsent(name, messageFactory,
045                    new SLF4JLogger(name, messageFactory, LoggerFactory.getLogger(name)));
046        }
047        return loggerRegistry.getLogger(name, messageFactory);
048    }
049
050    @Override
051    public boolean hasLogger(final String name) {
052        return loggerRegistry.hasLogger(name);
053    }
054
055    @Override
056    public boolean hasLogger(final String name, final MessageFactory messageFactory) {
057        return loggerRegistry.hasLogger(name, messageFactory);
058    }
059
060    @Override
061    public boolean hasLogger(final String name, final Class<? extends MessageFactory> messageFactoryClass) {
062        return loggerRegistry.hasLogger(name, messageFactoryClass);
063    }
064}