Package org.exbin.auxiliary.paged_data.delta

Class SegmentsRepository

java.lang.Object

org.exbin.auxiliary.paged_data.delta.SegmentsRepository

@ParametersAreNonnullByDefault
public class SegmentsRepository
extends java.lang.Object

Repository of delta segments.

Constructor Summary

Constructors

Constructor	Description
SegmentsRepository()
SegmentsRepository(org.exbin.auxiliary.paged_data.DataPageProvider dataPageProvider)

Method Summary

Modifier and Type	Method	Description
void	closeFileSource(FileDataSource fileSource)
void	closeMemorySource(MemoryDataSource memorySource)
DataSegment	copySegment(DataSegment segment)	Creates copy of segment.
DataSegment	copySegment(DataSegment segment, long offset, long length)	Creates copy of segment.
DeltaDocument	createDocument()	Creates empty delta document.
DeltaDocument	createDocument(FileDataSource fileSource)	Creates delta document for given file source.
FileSegment	createFileSegment(FileDataSource fileSource, long startPosition, long length)	Creates new file segment on given file source.
MemorySegment	createMemorySegment()
MemorySegment	createMemorySegment(MemoryDataSource memorySource, long startPosition, long length)	Creates new memory segment on given memory source.
void	detachFileSource(FileDataSource fileSource)	Loads all segments from given source file to memory.
void	detachMemoryArea(MemorySegment memorySegment, long segmentPosition, long length)	Detaches all other memory segments crossing given area of provided memory segment.
void	detachSegment(MemorySegment memorySegment)
void	dropDocument(DeltaDocument document)
void	dropFileSegment(FileSegment fileSegment)
void	dropMemorySegment(MemorySegment memorySegment)
void	dropSegment(DataSegment segment)
void	insertMemoryData(MemorySegment memorySegment, long segmentPosition, byte[] insertedData)
void	insertMemoryData(MemorySegment memorySegment, long segmentPosition, byte[] insertedData, int insertedDataOffset, int insertedDataLength)
void	insertMemoryData(MemorySegment memorySegment, long segmentPosition, long length)
void	insertMemoryData(MemorySegment memorySegment, long segmentPosition, org.exbin.auxiliary.paged_data.BinaryData insertedData)
void	insertMemoryData(MemorySegment memorySegment, long segmentPosition, org.exbin.auxiliary.paged_data.BinaryData insertedData, long insertedDataOffset, long insertedDataLength)
void	insertUninitializedMemoryData(MemorySegment memorySegment, long segmentPosition, long length)
FileDataSource	openFileSource(java.io.File sourceFile)
FileDataSource	openFileSource(java.io.File sourceFile, FileDataSource.EditMode editMode)
MemoryDataSource	openMemorySource()
void	saveDocument(DeltaDocument savedDocument)	Saves document to it's source file and update all documents.
void	setMemoryByte(MemorySegment memorySegment, long segmentPosition, byte value)	Sets byte to given segment.
void	updateSegment(DataSegment segment, long position, long length)
void	updateSegmentLength(DataSegment segment, long length)

Methods inherited from class java.lang.Object

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

Constructor Detail

SegmentsRepository

public SegmentsRepository()

SegmentsRepository

public SegmentsRepository(org.exbin.auxiliary.paged_data.DataPageProvider dataPageProvider)

Method Detail

openFileSource

@Nonnull
public FileDataSource openFileSource(java.io.File sourceFile)
                              throws java.io.IOException

Throws:

java.io.IOException

openFileSource

@Nonnull
public FileDataSource openFileSource(java.io.File sourceFile,
                                     FileDataSource.EditMode editMode)
                              throws java.io.IOException

Throws:

java.io.IOException

closeFileSource

public void closeFileSource(FileDataSource fileSource)

openMemorySource

@Nonnull
public MemoryDataSource openMemorySource()

closeMemorySource

public void closeMemorySource(MemoryDataSource memorySource)

createDocument

@Nonnull
public DeltaDocument createDocument()

Creates empty delta document.

Returns:

delta document

createDocument

@Nonnull
public DeltaDocument createDocument(FileDataSource fileSource)
                             throws java.io.IOException

Creates delta document for given file source.

Parameters:

fileSource - file source

Returns:

delta document

Throws:

java.io.IOException - if input/output error

saveDocument

public void saveDocument(DeltaDocument savedDocument)
                  throws java.io.IOException

Saves document to it's source file and update all documents.

Parameters:

savedDocument - document to save

Throws:

java.io.IOException - if input/output error

createFileSegment

@Nonnull
public FileSegment createFileSegment(FileDataSource fileSource,
                                     long startPosition,
                                     long length)

Creates new file segment on given file source.

Parameters:

fileSource - file source

startPosition - start position

length - length

Returns:

file segment

dropFileSegment

public void dropFileSegment(FileSegment fileSegment)

createMemorySegment

@Nonnull
public MemorySegment createMemorySegment()

createMemorySegment

@Nonnull
public MemorySegment createMemorySegment(MemoryDataSource memorySource,
                                         long startPosition,
                                         long length)

Creates new memory segment on given memory source.

Parameters:

memorySource - memory source

startPosition - start position

length - length

Returns:

memory segment

updateSegment

@Nonnull
public void updateSegment(DataSegment segment,
                          long position,
                          long length)

updateSegmentLength

public void updateSegmentLength(DataSegment segment,
                                long length)

dropMemorySegment

public void dropMemorySegment(MemorySegment memorySegment)

dropSegment

public void dropSegment(DataSegment segment)

dropDocument

public void dropDocument(DeltaDocument document)

setMemoryByte

public void setMemoryByte(MemorySegment memorySegment,
                          long segmentPosition,
                          byte value)

Sets byte to given segment. Handles shared memory between multiple segments.

Parameters:

memorySegment - memory segment

segmentPosition - relative position to segment start

value - value to set

insertMemoryData

public void insertMemoryData(MemorySegment memorySegment,
                             long segmentPosition,
                             org.exbin.auxiliary.paged_data.BinaryData insertedData)

insertMemoryData

public void insertMemoryData(MemorySegment memorySegment,
                             long segmentPosition,
                             org.exbin.auxiliary.paged_data.BinaryData insertedData,
                             long insertedDataOffset,
                             long insertedDataLength)

insertMemoryData

public void insertMemoryData(MemorySegment memorySegment,
                             long segmentPosition,
                             byte[] insertedData)

insertMemoryData

public void insertMemoryData(MemorySegment memorySegment,
                             long segmentPosition,
                             byte[] insertedData,
                             int insertedDataOffset,
                             int insertedDataLength)

insertMemoryData

public void insertMemoryData(MemorySegment memorySegment,
                             long segmentPosition,
                             long length)

insertUninitializedMemoryData

public void insertUninitializedMemoryData(MemorySegment memorySegment,
                                          long segmentPosition,
                                          long length)

detachMemoryArea

public void detachMemoryArea(MemorySegment memorySegment,
                             long segmentPosition,
                             long length)

Detaches all other memory segments crossing given area of provided memory segment.

Parameters:

memorySegment - provided memory segment

segmentPosition - position

length - length

detachSegment

public void detachSegment(MemorySegment memorySegment)

copySegment

@Nonnull
public DataSegment copySegment(DataSegment segment)

Creates copy of segment.

Parameters:

segment - original segment

Returns:

copy of segment

copySegment

@Nonnull
public DataSegment copySegment(DataSegment segment,
                               long offset,
                               long length)

Creates copy of segment.

Parameters:

segment - original segment

offset - segment area offset

length - segment area length

Returns:

copy of segment

detachFileSource

public void detachFileSource(FileDataSource fileSource)

Loads all segments from given source file to memory.

Parameters:

fileSource - file source