org.apache.storm.hdfs.bolt.rotation

Class FileSizeRotationPolicy

java.lang.Object

org.apache.storm.hdfs.bolt.rotation.FileSizeRotationPolicy

All Implemented Interfaces:

Serializable, FileRotationPolicy

public class FileSizeRotationPolicy
extends Object
implements FileRotationPolicy

File rotation policy that will rotate files when a certain file size is reached.

For example:

  // rotate when files reach 5MB  FileSizeRotationPolicy policy =  new FileSizeRotationPolicy(5.0, Units.MB); 

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FileSizeRotationPolicy.Units

Constructor Summary

Constructors

Modifier	Constructor and Description
	FileSizeRotationPolicy(float count, FileSizeRotationPolicy.Units units)
protected	FileSizeRotationPolicy(long maxBytes)

Method Summary

Modifier and Type	Method and Description
FileRotationPolicy	copy() Must be able to copy the rotation policy
boolean	mark(Tuple tuple, long offset) Called for every tuple the HdfsBolt executes.
void	reset() Called after the HdfsBolt rotates a file.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileSizeRotationPolicy

public FileSizeRotationPolicy(float count,
                              FileSizeRotationPolicy.Units units)

FileSizeRotationPolicy

protected FileSizeRotationPolicy(long maxBytes)

Method Detail

mark

public boolean mark(Tuple tuple,
                    long offset)

Description copied from interface: FileRotationPolicy

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

reset

public void reset()

Description copied from interface: FileRotationPolicy

Called after the HdfsBolt rotates a file.

Specified by:

reset in interface FileRotationPolicy

copy

public FileRotationPolicy copy()

Description copied from interface: FileRotationPolicy

Must be able to copy the rotation policy

Specified by:

copy in interface FileRotationPolicy