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.log4j.core.async;
018
019import java.net.URI;
020import java.util.ArrayList;
021import java.util.Collections;
022import java.util.List;
023
024import org.apache.logging.log4j.core.LoggerContext;
025import org.apache.logging.log4j.core.selector.ContextSelector;
026
027/**
028 * {@code ContextSelector} that returns the singleton {@code AsyncLoggerContext}.
029 */
030public class AsyncLoggerContextSelector implements ContextSelector {
031
032    private static final AsyncLoggerContext CONTEXT = new AsyncLoggerContext("AsyncLoggerContext");
033
034    @Override
035    public LoggerContext getContext(final String fqcn, final ClassLoader loader, final boolean currentContext) {
036        return CONTEXT;
037    }
038
039    @Override
040    public List<LoggerContext> getLoggerContexts() {
041        final List<LoggerContext> list = new ArrayList<LoggerContext>();
042        list.add(CONTEXT);
043        return Collections.unmodifiableList(list);
044    }
045
046    @Override
047    public LoggerContext getContext(final String fqcn, final ClassLoader loader, final boolean currentContext, final URI configLocation) {
048        return CONTEXT;
049    }
050
051    @Override
052    public void removeContext(final LoggerContext context) {
053    }
054
055}