org.apache.storm.hdfs.trident.rotation

Class TimedRotationPolicy

java.lang.Object

org.apache.storm.hdfs.trident.rotation.TimedRotationPolicy

All Implemented Interfaces:

Serializable, FileRotationPolicy

public class TimedRotationPolicy
extends Object
implements FileRotationPolicy

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TimedRotationPolicy.TimeUnit

Constructor Summary

Constructors

Constructor and Description
TimedRotationPolicy(float count, TimedRotationPolicy.TimeUnit units)

Method Summary

Modifier and Type	Method and Description
long	getInterval()
boolean	mark(long offset) Check if a file rotation should be performed based on the offset at which file is being written.
boolean	mark(TridentTuple tuple, long offset) Called for every tuple the HdfsBolt executes.
void	reset() Called after the HdfsBolt rotates a file.
void	start() Start the timer to run at fixed intervals.

Methods inherited from class java.lang.Object

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

Constructor Detail

TimedRotationPolicy

public TimedRotationPolicy(float count,
                           TimedRotationPolicy.TimeUnit units)

Method Detail

mark

public boolean mark(TridentTuple tuple,
                    long offset)

Called for every tuple the HdfsBolt executes.

Specified by:

mark in interface FileRotationPolicy

Parameters:

tuple - The tuple executed.

offset - current offset of file being written

Returns:

true if a file rotation should be performed

mark

public boolean mark(long offset)

Description copied from interface: FileRotationPolicy

Check if a file rotation should be performed based on the offset at which file is being written.

Specified by:

mark in interface FileRotationPolicy

Parameters:

offset - the current offset of file being written

Returns:

true if a file rotation should be performed.

reset

public void reset()

Called after the HdfsBolt rotates a file.

Specified by:

reset in interface FileRotationPolicy

getInterval

public long getInterval()

start

public void start()

Start the timer to run at fixed intervals.

Specified by:

start in interface FileRotationPolicy