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 */ 017 package org.apache.logging.log4j.core.selector; 018 019 import org.apache.logging.log4j.core.LoggerContext; 020 import org.apache.logging.log4j.core.impl.ContextAnchor; 021 022 import java.util.ArrayList; 023 import java.util.Collections; 024 import java.util.List; 025 026 /** 027 * Returns either this Thread's context or the default LoggerContext. 028 */ 029 public class BasicContextSelector implements ContextSelector { 030 031 private static final LoggerContext CONTEXT = new LoggerContext("Default"); 032 033 public LoggerContext getContext(final String fqcn, final ClassLoader loader, final boolean currentContext) { 034 035 final LoggerContext ctx = ContextAnchor.THREAD_CONTEXT.get(); 036 return ctx != null ? ctx : CONTEXT; 037 } 038 039 public LoggerContext locateContext(final String name, final String configLocation) { 040 return CONTEXT; 041 } 042 043 public void removeContext(final LoggerContext context) { 044 045 } 046 047 public List<LoggerContext> getLoggerContexts() { 048 final List<LoggerContext> list = new ArrayList<LoggerContext>(); 049 list.add(CONTEXT); 050 return Collections.unmodifiableList(list); 051 } 052 053 }