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.config; 018 019 import java.util.concurrent.ConcurrentHashMap; 020 import java.util.concurrent.ConcurrentMap; 021 022 import org.apache.logging.log4j.core.config.LoggerConfig; 023 import org.apache.logging.log4j.core.config.Loggers; 024 import org.apache.logging.log4j.core.config.plugins.Plugin; 025 import org.apache.logging.log4j.core.config.plugins.PluginElement; 026 import org.apache.logging.log4j.core.config.plugins.PluginFactory; 027 028 /** 029 * Container of Logger objects. 030 */ 031 @Plugin(name = "loggers", category = "Core") 032 public final class LoggersPlugin { 033 034 private LoggersPlugin() { 035 } 036 037 /** 038 * Create a Loggers object to contain all the Loggers. 039 * @param loggers An array of Loggers. 040 * @return A Loggers object. 041 */ 042 @PluginFactory 043 public static Loggers createLoggers(@PluginElement("Loggers") final LoggerConfig[] loggers) { 044 final ConcurrentMap<String, LoggerConfig> loggerMap = new ConcurrentHashMap<String, LoggerConfig>(); 045 LoggerConfig root = null; 046 047 for (final LoggerConfig logger : loggers) { 048 if (logger != null) { 049 if (logger.getName().isEmpty()) { 050 root = logger; 051 } 052 loggerMap.put(logger.getName(), logger); 053 } 054 } 055 056 return new Loggers(loggerMap, root); 057 } 058 }