1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache license, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the license for the specific language governing permissions and
15 * limitations under the license.
16 */
17 package org.apache.logging.log4j.core;
18
19 import java.util.EventListener;
20
21 import org.apache.logging.log4j.LogManager;
22
23 /**
24 * Base class for server classes that listen to {@link LogEvent}s.
25 * TODO (MS) How is this class any different from Appender?
26 */
27 public class LogEventListener implements EventListener {
28
29 private final LoggerContext context;
30
31 protected LogEventListener() {
32 context = (LoggerContext) LogManager.getContext(false);
33 }
34
35 public void log(final LogEvent event) {
36 if (event == null) {
37 return;
38 }
39 final Logger logger = context.getLogger(event.getLoggerName());
40 if (logger.config.filter(event.getLevel(), event.getMarker(), event.getMessage(), event.getThrown())) {
41 logger.config.logEvent(event);
42 }
43 }
44 }