org.apache.hadoop.contrib.failmon
Class SystemLogParser

java.lang.Object
  org.apache.hadoop.contrib.failmon.LogParser
      org.apache.hadoop.contrib.failmon.SystemLogParser

All Implemented Interfaces:

Monitored

public class SystemLogParser
extends LogParser

An object of this class parses a Unix system log file to create appropriate EventRecords. Currently, only the syslogd logging daemon is supported.

Constructor Summary

SystemLogParser(java.lang.String fname)
Create a new parser object .

Method Summary

java.lang.String	getInfo() Return a String with information about this class
protected java.util.Calendar	parseDate(java.lang.String strDate, java.lang.String strTime) Parse a date found in the system log.
EventRecord	parseLine(java.lang.String line) Parses one line of the log.

Methods inherited from class org.apache.hadoop.contrib.failmon.LogParser

checkForRotation, getNext, getReader, monitor, monitor, setNetworkProperties

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SystemLogParser

public SystemLogParser(java.lang.String fname)

Create a new parser object .

Method Detail

parseLine

public EventRecord parseLine(java.lang.String line)
                      throws java.io.IOException

Parses one line of the log. If the line contains a valid log entry, then an appropriate EventRecord is returned, after all relevant fields have been parsed.

Specified by:

parseLine in class LogParser

Parameters:

line - the log line to be parsed

Returns:

the EventRecord representing the log entry of the line. If the line does not contain a valid log entry, then the EventRecord returned has isValid() = false. When the end-of-file has been reached, null is returned to the caller.

Throws:

java.io.IOException

parseDate

protected java.util.Calendar parseDate(java.lang.String strDate,
                                       java.lang.String strTime)

Parse a date found in the system log.

Specified by:

parseDate in class LogParser

Returns:

a Calendar representing the date

getInfo

public java.lang.String getInfo()

Return a String with information about this class

Returns:

A String describing this class