Class NumberedSplitRandomAccessFile

java.lang.Object

java.io.RandomAccessFile

net.lingala.zip4j.io.inputstream.NumberedSplitRandomAccessFile

All Implemented Interfaces:

Closeable, DataInput, DataOutput, AutoCloseable

public class NumberedSplitRandomAccessFile
extends RandomAccessFile

A RandomAccessFile which reads files split with 7-zip format (.z001, .z002, etc) as a single file making it easier for calling methods to deal with opening appropriate split file to read

Field Summary

Fields

Modifier and Type	Field	Description
private File[]	allSortedSplitFiles
private int	currentOpenSplitFileCounter
private RandomAccessFile	randomAccessFile
private String	rwMode
private byte[]	singleByteBuffer
private long	splitLength

Constructor Summary

Constructors

Constructor	Description
NumberedSplitRandomAccessFile(File file, String mode)
NumberedSplitRandomAccessFile(File file, String mode, File[] allSortedSplitFiles)
NumberedSplitRandomAccessFile(String name, String mode)

Method Summary

Modifier and Type	Method	Description
private void	assertAllSplitFilesExist(File[] allSortedSplitFiles)
void	close()
long	getFilePointer()
long	length()
void	openLastSplitFileForReading()
private void	openRandomAccessFileForIndex(int splitCounter)
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
void	seek(long pos)
void	seekInCurrentPart(long pos)
void	write(byte[] b)
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class RandomAccessFile

getChannel, getFD, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, setLength, skipBytes, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

Methods inherited from class Object

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

Field Details

splitLength

private long splitLength

allSortedSplitFiles

private File[] allSortedSplitFiles

randomAccessFile

private RandomAccessFile randomAccessFile

singleByteBuffer

private byte[] singleByteBuffer

currentOpenSplitFileCounter

private int currentOpenSplitFileCounter

rwMode

private String rwMode

Constructor Details

NumberedSplitRandomAccessFile

public NumberedSplitRandomAccessFile(String name,
 String mode)
                              throws IOException

Throws:

IOException

NumberedSplitRandomAccessFile

public NumberedSplitRandomAccessFile(File file,
 String mode)
                              throws IOException

Throws:

IOException

NumberedSplitRandomAccessFile

public NumberedSplitRandomAccessFile(File file,
 String mode,
 File[] allSortedSplitFiles)
                              throws IOException

Throws:

IOException

Method Details

read

public int read()
         throws IOException

Overrides:

read in class RandomAccessFile

Throws:

IOException

read

public int read(byte[] b)
         throws IOException

Overrides:

read in class RandomAccessFile

Throws:

IOException

read

public int read(byte[] b,
 int off,
 int len)
         throws IOException

Overrides:

read in class RandomAccessFile

Throws:

IOException

write

public void write(int b)
           throws IOException

Specified by:

write in interface DataOutput

Overrides:

write in class RandomAccessFile

Throws:

IOException

write

public void write(byte[] b)
           throws IOException

Specified by:

write in interface DataOutput

Overrides:

write in class RandomAccessFile

Throws:

IOException

write

public void write(byte[] b,
 int off,
 int len)
           throws IOException

Specified by:

write in interface DataOutput

Overrides:

write in class RandomAccessFile

Throws:

IOException

seek

public void seek(long pos)
          throws IOException

Overrides:

seek in class RandomAccessFile

Throws:

IOException

getFilePointer

public long getFilePointer()
                    throws IOException

Overrides:

getFilePointer in class RandomAccessFile

Throws:

IOException

length

public long length()
            throws IOException

Overrides:

length in class RandomAccessFile

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class RandomAccessFile

Throws:

IOException

seekInCurrentPart

public void seekInCurrentPart(long pos)
                       throws IOException

Throws:

IOException

openLastSplitFileForReading

public void openLastSplitFileForReading()
                                 throws IOException

Throws:

IOException

openRandomAccessFileForIndex

private void openRandomAccessFileForIndex(int splitCounter)
                                   throws IOException

Throws:

IOException

assertAllSplitFilesExist

private void assertAllSplitFilesExist(File[] allSortedSplitFiles)
                               throws IOException

Throws:

IOException