1 /**
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18 package org.apache.hadoop.hbase;
19
20 import org.apache.hadoop.hbase.classification.InterfaceAudience;
21 import org.apache.log4j.AsyncAppender;
22 import org.apache.log4j.ConsoleAppender;
23 import org.apache.log4j.PatternLayout;
24
25 /**
26 * Logger class that buffers before trying to log to the specified console.
27 */
28 @InterfaceAudience.Private
29 public class AsyncConsoleAppender extends AsyncAppender {
30 private final ConsoleAppender consoleAppender;
31
32 public AsyncConsoleAppender() {
33 super();
34 consoleAppender = new ConsoleAppender(new PatternLayout(
35 "%d{ISO8601} %-5p [%t] %c{2}: %m%n"));
36 this.addAppender(consoleAppender);
37 }
38
39 public void setTarget(String value) {
40 consoleAppender.setTarget(value);
41 }
42
43 @Override
44 public void activateOptions() {
45 consoleAppender.activateOptions();
46 super.activateOptions();
47 }
48
49 }