Class BZip2InputStream
- java.lang.Object
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- java.io.InputStream
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- org.apache.commons.compress.compressors.bzip2.BZip2InputStream
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- All Implemented Interfaces:
java.io.Closeable
,java.lang.AutoCloseable
,BZip2Constants
public class BZip2InputStream extends java.io.InputStream implements BZip2Constants
An input stream that decompresses from the BZip2 format (without the file header chars) to be read as any other stream.- Author:
- Keiron Liddle
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Field Summary
Fields Modifier and Type Field Description private int
ch2
private int
chPrev
private int
count
private int
i2
private int
j2
private int[][]
m_base
private boolean
m_blockRandomised
private int
m_blockSize100k
private int
m_bsBuff
private int
m_bsLive
private int
m_computedBlockCRC
private int
m_computedCombinedCRC
private CRC
m_crc
private int
m_currentChar
private int
m_currentState
private java.io.InputStream
m_input
private boolean[]
m_inUse
private int
m_last
private int[][]
m_limit
private char[]
m_ll8
private int[]
m_minLens
private int
m_nInUse
private int
m_origPtr
private int[][]
m_perm
private int
m_rNToGo
private int
m_rTPos
private char[]
m_selector
private char[]
m_selectorMtf
private char[]
m_seqToUnseq
private int
m_storedBlockCRC
private int
m_storedCombinedCRC
private boolean
m_streamEnd
private int
m_tPos
private int[]
m_tt
private char[]
m_unseqToSeq
private int[]
m_unzftab
private static int
NO_RAND_PART_A_STATE
private static int
NO_RAND_PART_B_STATE
private static int
NO_RAND_PART_C_STATE
private static int
RAND_PART_A_STATE
private static int
RAND_PART_B_STATE
private static int
RAND_PART_C_STATE
private static int
START_BLOCK_STATE
private char
z
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Fields inherited from interface org.apache.commons.compress.compressors.bzip2.BZip2Constants
BASE_BLOCK_SIZE, G_SIZE, MAX_ALPHA_SIZE, MAX_CODE_LEN, MAX_SELECTORS, N_GROUPS, N_ITERS, NUM_OVERSHOOT_BYTES, RAND_NUMS, RUNA, RUNB
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Constructor Summary
Constructors Constructor Description BZip2InputStream(java.io.InputStream input)
Initializes ein CBZip2 InputStream with the give InputStream
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description private static void
badBlockHeader()
private static void
blockOverrun()
private void
bsFinishedWithStream()
private int
bsR(int n)
private void
bsSetStream(java.io.InputStream input)
private void
buildInUseTable()
private static void
cadvise()
void
close()
private void
complete()
private static void
compressedStreamEOF()
private static void
crcError()
private void
endBlock()
private void
getAndMoveToFrontDecode()
private void
hbCreateDecodeTables(int[] limit, int[] base, int[] perm, char[] length, int minLen, int maxLen, int alphaSize)
private void
initBlock()
private void
initialize()
private void
makeMaps()
int
read()
private int
readInt()
private char
readUnsignedChar()
private int
readVariableSizedInt(int numBits)
private void
recvDecodingTables()
private void
setDecompressStructureSizes(int newSize100k)
private void
setupBlock()
private void
setupNoRandPartA()
private void
setupNoRandPartB()
private void
setupNoRandPartC()
private void
setupRandPartA()
private void
setupRandPartB()
private void
setupRandPartC()
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Field Detail
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START_BLOCK_STATE
private static final int START_BLOCK_STATE
- See Also:
- Constant Field Values
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RAND_PART_A_STATE
private static final int RAND_PART_A_STATE
- See Also:
- Constant Field Values
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RAND_PART_B_STATE
private static final int RAND_PART_B_STATE
- See Also:
- Constant Field Values
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RAND_PART_C_STATE
private static final int RAND_PART_C_STATE
- See Also:
- Constant Field Values
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NO_RAND_PART_A_STATE
private static final int NO_RAND_PART_A_STATE
- See Also:
- Constant Field Values
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NO_RAND_PART_B_STATE
private static final int NO_RAND_PART_B_STATE
- See Also:
- Constant Field Values
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NO_RAND_PART_C_STATE
private static final int NO_RAND_PART_C_STATE
- See Also:
- Constant Field Values
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m_crc
private CRC m_crc
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m_inUse
private boolean[] m_inUse
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m_seqToUnseq
private char[] m_seqToUnseq
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m_unseqToSeq
private char[] m_unseqToSeq
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m_selector
private char[] m_selector
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m_selectorMtf
private char[] m_selectorMtf
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m_unzftab
private int[] m_unzftab
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m_limit
private int[][] m_limit
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m_base
private int[][] m_base
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m_perm
private int[][] m_perm
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m_minLens
private int[] m_minLens
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m_streamEnd
private boolean m_streamEnd
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m_currentChar
private int m_currentChar
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m_currentState
private int m_currentState
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m_rNToGo
private int m_rNToGo
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m_rTPos
private int m_rTPos
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m_tPos
private int m_tPos
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i2
private int i2
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count
private int count
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chPrev
private int chPrev
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ch2
private int ch2
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j2
private int j2
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z
private char z
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m_blockRandomised
private boolean m_blockRandomised
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m_blockSize100k
private int m_blockSize100k
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m_bsBuff
private int m_bsBuff
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m_bsLive
private int m_bsLive
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m_input
private java.io.InputStream m_input
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m_computedBlockCRC
private int m_computedBlockCRC
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m_computedCombinedCRC
private int m_computedCombinedCRC
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m_last
private int m_last
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m_ll8
private char[] m_ll8
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m_nInUse
private int m_nInUse
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m_origPtr
private int m_origPtr
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m_storedBlockCRC
private int m_storedBlockCRC
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m_storedCombinedCRC
private int m_storedCombinedCRC
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m_tt
private int[] m_tt
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Method Detail
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badBlockHeader
private static void badBlockHeader()
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blockOverrun
private static void blockOverrun()
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cadvise
private static void cadvise()
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compressedStreamEOF
private static void compressedStreamEOF()
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crcError
private static void crcError()
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read
public int read()
- Specified by:
read
in classjava.io.InputStream
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setDecompressStructureSizes
private void setDecompressStructureSizes(int newSize100k)
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setupBlock
private void setupBlock()
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setupNoRandPartA
private void setupNoRandPartA()
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setupNoRandPartB
private void setupNoRandPartB()
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setupNoRandPartC
private void setupNoRandPartC()
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setupRandPartA
private void setupRandPartA()
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setupRandPartB
private void setupRandPartB()
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setupRandPartC
private void setupRandPartC()
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getAndMoveToFrontDecode
private void getAndMoveToFrontDecode()
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bsFinishedWithStream
private void bsFinishedWithStream()
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readVariableSizedInt
private int readVariableSizedInt(int numBits)
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readUnsignedChar
private char readUnsignedChar()
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readInt
private int readInt()
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bsR
private int bsR(int n)
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bsSetStream
private void bsSetStream(java.io.InputStream input)
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complete
private void complete()
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endBlock
private void endBlock()
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hbCreateDecodeTables
private void hbCreateDecodeTables(int[] limit, int[] base, int[] perm, char[] length, int minLen, int maxLen, int alphaSize)
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initBlock
private void initBlock()
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initialize
private void initialize()
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makeMaps
private void makeMaps()
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recvDecodingTables
private void recvDecodingTables()
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buildInUseTable
private void buildInUseTable()
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close
public void close() throws java.io.IOException
- Specified by:
close
in interfacejava.lang.AutoCloseable
- Specified by:
close
in interfacejava.io.Closeable
- Overrides:
close
in classjava.io.InputStream
- Throws:
java.io.IOException
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