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.log;
019
020/**
021 * A log4J Appender that simply counts logging events in three levels:
022 * fatal, error and warn. The class name is used in log4j.properties
023 * @deprecated use {@link org.apache.hadoop.log.metrics.EventCounter} instead
024 */
025@Deprecated
026public class EventCounter extends org.apache.hadoop.log.metrics.EventCounter {
027  static {
028    // The logging system is not started yet.
029    System.err.println("WARNING: "+ EventCounter.class.getName() +
030        " is deprecated. Please use "+
031        org.apache.hadoop.log.metrics.EventCounter.class.getName() +
032        " in all the log4j.properties files.");
033  }
034}