/*
 * 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 aQute.bnd.annotation.Resolution;
import aQute.bnd.annotation.spi.ServiceProvider;
import org.slf4j.ILoggerFactory;
import org.slf4j.IMarkerFactory;
import org.slf4j.spi.MDCAdapter;

@ServiceProvider(value = org.slf4j.spi.SLF4JServiceProvider.class, resolution = Resolution.MANDATORY)
public class SLF4JServiceProvider implements org.slf4j.spi.SLF4JServiceProvider {

    public static final String REQUESTED_API_VERSION = "2.0.99";

    private ILoggerFactory loggerFactory;
    private Log4jMarkerFactory markerFactory;
    private MDCAdapter mdcAdapter;

    @Override
    public ILoggerFactory getLoggerFactory() {
        return loggerFactory;
    }

    @Override
    public IMarkerFactory getMarkerFactory() {
        return markerFactory;
    }

    @Override
    public MDCAdapter getMDCAdapter() {
        return mdcAdapter;
    }

    @Override
    public String getRequestedApiVersion() {
        return REQUESTED_API_VERSION;
    }

    @Override
    public void initialize() {
        markerFactory = new Log4jMarkerFactory();
        loggerFactory = new Log4jLoggerFactory(markerFactory);
        mdcAdapter = new Log4jMDCAdapter();
    }
}
