org.apache.hadoop.mapreduce.v2.jobhistory

Class FileNameIndexUtils

java.lang.Object

org.apache.hadoop.mapreduce.v2.jobhistory.FileNameIndexUtils

public class FileNameIndexUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
FileNameIndexUtils()

Method Summary

Modifier and Type	Method and Description
static String	decodeJobHistoryFileName(String logFileName) Helper function to decode the URL of the filename of the job-history log file.
static String	encodeJobHistoryFileName(String logFileName) Helper function to encode the URL of the filename of the job-history log file.
static String	getDoneFileName(JobIndexInfo indexInfo) Constructs the job history file name from the JobIndexInfo.
static String	getDoneFileName(JobIndexInfo indexInfo, int jobNameLimit)
static JobIndexInfo	getIndexInfo(String jhFileName) Parses the provided job history file name to construct a JobIndexInfo object which is returned.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileNameIndexUtils

public FileNameIndexUtils()

Method Detail

getDoneFileName

public static String getDoneFileName(JobIndexInfo indexInfo)
                              throws IOException

Constructs the job history file name from the JobIndexInfo.

Parameters:

indexInfo - the index info.

Returns:

the done job history filename.

Throws:

IOException

getDoneFileName

public static String getDoneFileName(JobIndexInfo indexInfo,
                                     int jobNameLimit)
                              throws IOException

Throws:

IOException

getIndexInfo

public static JobIndexInfo getIndexInfo(String jhFileName)
                                 throws IOException

Parses the provided job history file name to construct a JobIndexInfo object which is returned.

Parameters:

jhFileName - the job history filename.

Returns:

a JobIndexInfo object built from the filename.

Throws:

IOException

encodeJobHistoryFileName

public static String encodeJobHistoryFileName(String logFileName)
                                       throws IOException

Helper function to encode the URL of the filename of the job-history log file.

Parameters:

logFileName - file name of the job-history file

Returns:

URL encoded filename

Throws:

IOException

decodeJobHistoryFileName

public static String decodeJobHistoryFileName(String logFileName)
                                       throws IOException

Helper function to decode the URL of the filename of the job-history log file.

Parameters:

logFileName - file name of the job-history file

Returns:

URL decoded filename

Throws:

IOException