core/src/main/java/org/apache/hadoop/chukwa/extraction/demux/processor/mapper/SysLog.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.hadoop.chukwa.extraction.demux.processor.mapper;


import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import org.apache.hadoop.chukwa.datacollection.writer.hbase.Annotation.Table;
import org.apache.hadoop.chukwa.extraction.engine.ChukwaRecord;
import org.apache.hadoop.chukwa.extraction.engine.ChukwaRecordKey;
import org.apache.hadoop.mapred.OutputCollector;
import org.apache.hadoop.mapred.Reporter;
import org.apache.log4j.Logger;

@Table(name="SystemMetrics",columnFamily="SysLog")
public class SysLog extends AbstractProcessor {

  static Logger log = Logger.getLogger(SysLog.class);
  private static final String reduceType = "SysLog";  
  private SimpleDateFormat sdf = null;

  public SysLog() {
    sdf = new SimpleDateFormat("MMM d HH:mm:ss");
  }

  @Override
  protected void parse(String recordEntry,
      OutputCollector<ChukwaRecordKey, ChukwaRecord> output, Reporter reporter)
      throws Throwable {
    try {
      String dStr = recordEntry.substring(0, 15);
      Calendar convertDate = Calendar.getInstance();
      Date d = sdf.parse(dStr);
      int year = convertDate.get(Calendar.YEAR);
      convertDate.setTime(d);
      convertDate.set(Calendar.YEAR, year);
      if(convertDate.getTimeInMillis() > Calendar.getInstance().getTimeInMillis()) {
        convertDate.set(Calendar.YEAR, year - 1);
      }

      ChukwaRecord record = new ChukwaRecord();
      buildGenericRecord(record, recordEntry, convertDate.getTime().getTime(),
          reduceType);
      output.collect(key, record);
    } catch (ParseException e) {
      e.printStackTrace();
      log.warn("Wrong format in SysLog [" + recordEntry + "]", e);
      throw e;
    } catch (IOException e) {
      e.printStackTrace();
      log.warn("Unable to collect output in SysLog [" + recordEntry + "]", e);
      throw e;
    }

  }

  public String getDataType() {
    return SysLog.class.getName();
  }

}