Package org.apache.hadoop.hbase.mapreduce

Class WALInputFormat.WALSplit

java.lang.Object

org.apache.hadoop.mapreduce.InputSplit

org.apache.hadoop.hbase.mapreduce.WALInputFormat.WALSplit

All Implemented Interfaces:

org.apache.hadoop.io.Writable

Enclosing class:

WALInputFormat

static class WALInputFormat.WALSplit
extends org.apache.hadoop.mapreduce.InputSplit
implements org.apache.hadoop.io.Writable

InputSplit for WAL files. Each split represent exactly one log file.

Field Summary

Fields

Modifier and Type	Field	Description
private long	endTime
private long	fileSize
private String	logFileName
private long	startTime

Constructor Summary

Constructors

Constructor	Description
WALSplit()	for serialization
WALSplit(String logFileName, long fileSize, long startTime, long endTime)	Represent an WALSplit, i.e.

Method Summary

Modifier and Type	Method	Description
long	getEndTime()
long	getLength()
String[]	getLocations()
String	getLogFileName()
long	getStartTime()
void	readFields(DataInput in)
String	toString()
void	write(DataOutput out)

Methods inherited from class org.apache.hadoop.mapreduce.InputSplit

getLocationInfo

Methods inherited from class java.lang.Object

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

Field Details

logFileName

private String logFileName

fileSize

private long fileSize

startTime

private long startTime

endTime

private long endTime

Constructor Details

WALSplit

public WALSplit()

for serialization

WALSplit

public WALSplit(String logFileName,
 long fileSize,
 long startTime,
 long endTime)

Represent an WALSplit, i.e. a single WAL file. Start- and EndTime are managed by the split, so that WAL files can be filtered before WALEdits are passed to the mapper(s).

Method Details

getLength

public long getLength()
               throws IOException,
InterruptedException

Specified by:

getLength in class org.apache.hadoop.mapreduce.InputSplit

Throws:

IOException

InterruptedException

getLocations

public String[] getLocations()
                      throws IOException,
InterruptedException

Specified by:

getLocations in class org.apache.hadoop.mapreduce.InputSplit

Throws:

IOException

InterruptedException

getLogFileName

public String getLogFileName()

getStartTime

public long getStartTime()

getEndTime

public long getEndTime()

readFields

public void readFields(DataInput in)
                throws IOException

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Throws:

IOException

write

public void write(DataOutput out)
           throws IOException

Specified by:

write in interface org.apache.hadoop.io.Writable

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object