Package com.mku.fs.drive.utils

Class FileImporter

java.lang.Object

com.mku.fs.drive.utils.FileImporter

Direct Known Subclasses:

AesFileImporter

public abstract class FileImporter
extends java.lang.Object

Import IFile(s) into a VirtualDrive.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FileImporter.FileImportOptions	File importer options

Constructor Summary

Constructors

Constructor	Description
FileImporter()

Method Summary

Modifier and Type	Method	Description
void	close()	Stops the current import
protected abstract long	getMinimumPartSize(IVirtualFile file)	Get the minimum part of file that can be imported in parallel.
IVirtualFile	importFile(IFile fileToImport, IVirtualFile dir)	Imports a real file into the drive.
IVirtualFile	importFile(IFile fileToImport, IVirtualFile dir, FileImporter.FileImportOptions options)	Imports a real file into the drive.
void	initialize(int bufferSize, int threads)	Constructs a file importer that can be used to import files into the drive
boolean	isRunning()	Check if importer is currently running a job.
protected abstract void	onPrepare(IVirtualFile targetFile, boolean integrity)	Runs before import
void	stop()	Stops all current importing tasks

Methods inherited from class java.lang.Object

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

Constructor Detail

FileImporter

public FileImporter()

Method Detail

onPrepare

protected abstract void onPrepare(IVirtualFile targetFile,
                                  boolean integrity)
                           throws java.io.IOException

Runs before import

Parameters:

targetFile - The target file imported

integrity - If integrity verification is enabled

Throws:

java.io.IOException - If there is a problem with the file preparation.

getMinimumPartSize

protected abstract long getMinimumPartSize(IVirtualFile file)
                                    throws java.io.IOException

Get the minimum part of file that can be imported in parallel.

Parameters:

file - The file

Returns:

The number of bytes

Throws:

java.io.IOException - If there was a problem calculating the size.

initialize

public void initialize(int bufferSize,
                       int threads)

Constructs a file importer that can be used to import files into the drive

Parameters:

bufferSize - Buffer size to be used when encrypting files. If using integrity this value has to be a multiple of the Chunk size. If not using integrity it should be a multiple of the AES block size for better performance

threads - The threads to use for import

stop

public void stop()

Stops all current importing tasks

isRunning

public boolean isRunning()

Check if importer is currently running a job.

Returns:

True if running

importFile

public IVirtualFile importFile(IFile fileToImport,
                               IVirtualFile dir)
                        throws java.lang.Exception

Imports a real file into the drive.

Parameters:

fileToImport - The source file that will be imported in into the drive.

dir - The target directory in the drive that the file will be imported

Returns:

The imported file

Throws:

java.lang.Exception - Thrown if error occurs during import

importFile

public IVirtualFile importFile(IFile fileToImport,
                               IVirtualFile dir,
                               FileImporter.FileImportOptions options)
                        throws java.lang.Exception

Imports a real file into the drive.

Parameters:

fileToImport - The source file that will be imported in into the drive.

dir - The target directory in the drive that the file will be imported

options - The options

Returns:

The imported file

Throws:

java.lang.Exception - Thrown if error occurs during import

close

public void close()

Stops the current import