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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Copyright 2012 The Netty Project
 *
 * The Netty 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:
 *
 *   https://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 io.netty.util.internal.logging;


import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.helpers.NOPLoggerFactory;
import org.slf4j.spi.LocationAwareLogger;

/**
 * Logger factory which creates a SLF4J
 * logger.
 */
public class Slf4JLoggerFactory extends InternalLoggerFactory {

    @SuppressWarnings("deprecation")
    public static final InternalLoggerFactory INSTANCE = new Slf4JLoggerFactory();

    /**
     * @deprecated Use {@link #INSTANCE} instead.
     */
    @Deprecated
    public Slf4JLoggerFactory() {
    }

    Slf4JLoggerFactory(boolean failIfNOP) {
        assert failIfNOP; // Should be always called with true.
        if (LoggerFactory.getILoggerFactory() instanceof NOPLoggerFactory) {
            throw new NoClassDefFoundError("NOPLoggerFactory not supported");
        }
    }

    @Override
    public InternalLogger newInstance(String name) {
        return wrapLogger(LoggerFactory.getLogger(name));
    }

    // package-private for testing.
    static InternalLogger wrapLogger(Logger logger) {
        return logger instanceof LocationAwareLogger ?
                new LocationAwareSlf4JLogger((LocationAwareLogger) logger) : new Slf4JLogger(logger);
    }

    static InternalLoggerFactory getInstanceWithNopCheck() {
        return NopInstanceHolder.INSTANCE_WITH_NOP_CHECK;
    }

    private static final class NopInstanceHolder {
        private static final InternalLoggerFactory INSTANCE_WITH_NOP_CHECK = new Slf4JLoggerFactory(true);
    }
}