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The Pax Logging API Library is to allow for the Pax Logging Service to be reloaded without stopping the many dependent bundles. It also contains the OSGi Log Service API and the Knopflerfish Log API.

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/*
 * 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.ops4j.pax.logging.log4jv2;

import java.net.URI;

import org.apache.logging.log4j.spi.LoggerContext;
import org.apache.logging.log4j.spi.LoggerContextFactory;

/**
 * This is the main class that's briding Log4J2 API into Pax Logging. It's responsibility is to
 * produce {@link LoggerContext} objects.
 * See http://logging.apache.org/log4j/2.x/manual/architecture.html
 * Even if there are scenarios where multiple {@link LoggerContext contexts} may be used, this factory
 * holds single, static Pax Logging-specific {@link LoggerContext}
 */
public class Log4jv2LoggerContextFactory implements LoggerContextFactory {

    private static LoggerContext context = new Log4jv2LoggerContext();

    @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 removeContext) {
    }
}