001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase;
019
020import org.apache.log4j.AsyncAppender;
021import org.apache.log4j.ConsoleAppender;
022import org.apache.log4j.PatternLayout;
023import org.apache.yetus.audience.InterfaceAudience;
024
025/**
026 * Logger class that buffers before trying to log to the specified console.
027 */
028@InterfaceAudience.Private
029public class AsyncConsoleAppender extends AsyncAppender {
030  private final ConsoleAppender consoleAppender;
031
032  public AsyncConsoleAppender() {
033    super();
034    consoleAppender = new ConsoleAppender(new PatternLayout(
035        "%d{ISO8601} %-5p [%t] %c{2}: %m%n"));
036    this.addAppender(consoleAppender);
037  }
038
039  public void setTarget(String value) {
040    consoleAppender.setTarget(value);
041  }
042
043  @Override
044  public void activateOptions() {
045    consoleAppender.activateOptions();
046    super.activateOptions();
047  }
048
049}