net.sf.filePiper.processors
Class ChunkProcessor

java.lang.Object
  net.sf.filePiper.processors.ChunkProcessor

All Implemented Interfaces:

FileProcessor, SizeAndUnit

public class ChunkProcessor
extends Object
implements FileProcessor, SizeAndUnit

Processor chunking an input file in a set of output files of fixed size (calculated in lines or bytes).

Author:

BEROL

Field Summary

Fields inherited from interface net.sf.filePiper.model.FileProcessor

MANY, NONE, ONE

Fields inherited from interface net.sf.filePiper.processors.SizeAndUnit

UNIT_BYTE, UNIT_LINE

Constructor Summary

ChunkProcessor()

Method Summary

void	chunkInBytes(InputStream is, InputFileInfo info, FileProcessorEnvironment env)
void	chunkInLines(InputStream is, InputFileInfo info, FileProcessorEnvironment env)
void	endBatch(FileProcessorEnvironment env) Notification that the current batch is finished.
net.sf.sfac.gui.editor.ObjectEditor	getEditor() Get a GUI editor for this object.
int	getOutputCardinality(int inputCardinality) Get the number of output streams generated for the given number of input streams.
String	getProcessorName()
int	getSize()
String	getStatusMessage() Get the status of this processor to display in the status bar of the GUI during file processing.
int	getUnits()
void	init(net.sf.sfac.setting.Settings settngs) Initialize this file processor just after instantiation (called only once).
void	process(InputStream is, InputFileInfo info, FileProcessorEnvironment env) Request to process the given input stream.
void	setSize(int newSize)
void	setUnits(int newUnits)
void	startBatch(FileProcessorEnvironment env) Notification that the processing of a batch of file is starting.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChunkProcessor

public ChunkProcessor()

Method Detail

getProcessorName

public String getProcessorName()

Specified by:

getProcessorName in interface FileProcessor

Returns:

A displayable name for this processor.

getSize

public int getSize()

Specified by:

getSize in interface SizeAndUnit

setSize

public void setSize(int newSize)

Specified by:

setSize in interface SizeAndUnit

getUnits

public int getUnits()

Specified by:

getUnits in interface SizeAndUnit

setUnits

public void setUnits(int newUnits)

Specified by:

setUnits in interface SizeAndUnit

getEditor

public net.sf.sfac.gui.editor.ObjectEditor getEditor()

Description copied from interface: FileProcessor

Get a GUI editor for this object.

Specified by:

getEditor in interface FileProcessor

getOutputCardinality

public int getOutputCardinality(int inputCardinality)

Description copied from interface: FileProcessor

Get the number of output streams generated for the given number of input streams.
possible values are:

• NONE
• ONE
• MANY

Specified by:

getOutputCardinality in interface FileProcessor

Parameters:

inputCardinality - ONE or MANY.

init

public void init(net.sf.sfac.setting.Settings settngs)

Description copied from interface: FileProcessor

Initialize this file processor just after instantiation (called only once).
The settings passed here should be use to store all persistent data.

Specified by:

init in interface FileProcessor

Parameters:

settngs - Settings for this FileProcessor instance.

process

public void process(InputStream is,
                    InputFileInfo info,
                    FileProcessorEnvironment env)
             throws IOException

Description copied from interface: FileProcessor

Request to process the given input stream.
The output stream to use for output should be requested to the FileProcessorEnvironment.

Specified by:

process in interface FileProcessor

Parameters:

is - the InputStream to process

info - Information about the input file to process

env - object used by this FileProcessor to interact with its environment.

Throws:

IOException - if something goes wrong.

chunkInLines

public void chunkInLines(InputStream is,
                         InputFileInfo info,
                         FileProcessorEnvironment env)
                  throws IOException

Throws:

IOException

chunkInBytes

public void chunkInBytes(InputStream is,
                         InputFileInfo info,
                         FileProcessorEnvironment env)
                  throws IOException

Throws:

IOException

startBatch

public void startBatch(FileProcessorEnvironment env)

Description copied from interface: FileProcessor

Notification that the processing of a batch of file is starting.
This method allows to initialize this FileProcessor before each file batch processing.

Specified by:

startBatch in interface FileProcessor

endBatch

public void endBatch(FileProcessorEnvironment env)

Description copied from interface: FileProcessor

Notification that the current batch is finished.

Specified by:

endBatch in interface FileProcessor

getStatusMessage

public String getStatusMessage()

Description copied from interface: FileProcessor

Get the status of this processor to display in the status bar of the GUI during file processing.

Warning: this method is called in a different Thread from the processing Thread (the Thread calling the process(..) method). It is usually called from the swing EventDispatchThread. So, be aware of possible threading synchronization problems while accessing the instance variables of your class.

Specified by:

getStatusMessage in interface FileProcessor

Returns:

the status of this processor.