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.appender;
18
19 import org.apache.logging.log4j.core.Appender;
20 import org.apache.logging.log4j.core.Core;
21 import org.apache.logging.log4j.core.LogEvent;
22 import org.apache.logging.log4j.core.config.plugins.Plugin;
23 import org.apache.logging.log4j.core.config.plugins.PluginAttribute;
24 import org.apache.logging.log4j.core.config.plugins.PluginFactory;
25
26 /**
27 * An Appender that ignores log events. Use for compatibility with version 1.2.
28 */
29 @Plugin(name = NullAppender.PLUGIN_NAME, category = Core.CATEGORY_NAME, elementType = Appender.ELEMENT_TYPE, printObject = true)
30 public class NullAppender extends AbstractAppender {
31
32 public static final String PLUGIN_NAME = "Null";
33
34 @PluginFactory
35 public static NullAppender createAppender(@PluginAttribute("name") final String name) {
36 return new NullAppender(name);
37 }
38
39 private NullAppender(final String name) {
40 super(name, null, null);
41 // Do nothing
42 }
43
44 @Override
45 public void append(final LogEvent event) {
46 // Do nothing
47 }
48
49 }