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; 018 019import java.util.EventListener; 020 021import org.apache.logging.log4j.LogManager; 022 023/** 024 * Base class for server classes that listen to {@link LogEvent}s. 025 * TODO (MS) How is this class any different from Appender? 026 */ 027public class LogEventListener implements EventListener { 028 029 private final LoggerContext context; 030 031 protected LogEventListener() { 032 context = (LoggerContext) LogManager.getContext(false); 033 } 034 035 public void log(final LogEvent event) { 036 if (event == null) { 037 return; 038 } 039 final Logger logger = context.getLogger(event.getLoggerName()); 040 if (logger.config.filter(event.getLevel(), event.getMarker(), event.getMessage(), event.getThrown())) { 041 logger.config.logEvent(event); 042 } 043 } 044}