Package net.lingala.zip4j.io.inputstream

Class NumberedSplitRandomAccessFile

java.lang.Object

java.io.RandomAccessFile

net.lingala.zip4j.io.inputstream.NumberedSplitRandomAccessFile

All Implemented Interfaces:

java.io.Closeable, java.io.DataInput, java.io.DataOutput, java.lang.AutoCloseable

public class NumberedSplitRandomAccessFile
extends java.io.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 java.io.File[]	allSortedSplitFiles
private int	currentOpenSplitFileCounter
private java.io.RandomAccessFile	randomAccessFile
private java.lang.String	rwMode
private byte[]	singleByteBuffer
private long	splitLength

Constructor Summary

Constructors

Constructor	Description
NumberedSplitRandomAccessFile(java.io.File file, java.lang.String mode)
NumberedSplitRandomAccessFile(java.io.File file, java.lang.String mode, java.io.File[] allSortedSplitFiles)
NumberedSplitRandomAccessFile(java.lang.String name, java.lang.String mode)

Method Summary

Modifier and Type	Method	Description
private void	assertAllSplitFilesExist(java.io.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 java.io.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 java.lang.Object

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

Field Detail

splitLength

private long splitLength

allSortedSplitFiles

private java.io.File[] allSortedSplitFiles

randomAccessFile

private java.io.RandomAccessFile randomAccessFile

singleByteBuffer

private byte[] singleByteBuffer

currentOpenSplitFileCounter

private int currentOpenSplitFileCounter

rwMode

private java.lang.String rwMode

Constructor Detail

NumberedSplitRandomAccessFile

public NumberedSplitRandomAccessFile(java.lang.String name,
                                     java.lang.String mode)
                              throws java.io.IOException

Throws:

java.io.IOException

NumberedSplitRandomAccessFile

public NumberedSplitRandomAccessFile(java.io.File file,
                                     java.lang.String mode)
                              throws java.io.IOException

Throws:

java.io.IOException

NumberedSplitRandomAccessFile

public NumberedSplitRandomAccessFile(java.io.File file,
                                     java.lang.String mode,
                                     java.io.File[] allSortedSplitFiles)
                              throws java.io.IOException

Throws:

java.io.IOException

Method Detail

read

public int read()
         throws java.io.IOException

Overrides:

read in class java.io.RandomAccessFile

Throws:

java.io.IOException

read

public int read(byte[] b)
         throws java.io.IOException

Overrides:

read in class java.io.RandomAccessFile

Throws:

java.io.IOException

read

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

Overrides:

read in class java.io.RandomAccessFile

Throws:

java.io.IOException

write

public void write(int b)
           throws java.io.IOException

Specified by:

write in interface java.io.DataOutput

Overrides:

write in class java.io.RandomAccessFile

Throws:

java.io.IOException

write

public void write(byte[] b)
           throws java.io.IOException

Specified by:

write in interface java.io.DataOutput

Overrides:

write in class java.io.RandomAccessFile

Throws:

java.io.IOException

write

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

Specified by:

write in interface java.io.DataOutput

Overrides:

write in class java.io.RandomAccessFile

Throws:

java.io.IOException

seek

public void seek(long pos)
          throws java.io.IOException

Overrides:

seek in class java.io.RandomAccessFile

Throws:

java.io.IOException

getFilePointer

public long getFilePointer()
                    throws java.io.IOException

Overrides:

getFilePointer in class java.io.RandomAccessFile

Throws:

java.io.IOException

length

public long length()
            throws java.io.IOException

Overrides:

length in class java.io.RandomAccessFile

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.RandomAccessFile

Throws:

java.io.IOException

seekInCurrentPart

public void seekInCurrentPart(long pos)
                       throws java.io.IOException

Throws:

java.io.IOException

openLastSplitFileForReading

public void openLastSplitFileForReading()
                                 throws java.io.IOException

Throws:

java.io.IOException

openRandomAccessFileForIndex

private void openRandomAccessFileForIndex(int splitCounter)
                                   throws java.io.IOException

Throws:

java.io.IOException

assertAllSplitFilesExist

private void assertAllSplitFilesExist(java.io.File[] allSortedSplitFiles)
                               throws java.io.IOException

Throws:

java.io.IOException