java.lang.Object
- java.io.OutputStream
- - gov.nih.mipav.model.file.CBZip2OutputStream

All Implemented Interfaces:

BZip2Constants, java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable
```
public class CBZip2OutputStream
extends java.io.OutputStream
implements BZip2Constants
```
An output stream that compresses into the BZip2 format (without the file header chars) into another stream.

Author:

Keiron Liddle TODO: Update to BZip2 1.0.1

Nested Class Summary

Nested Classes
Modifier and Type Class Description

private static class CBZip2OutputStream.StackElem

Field Summary

Fields
Modifier and Type	Field	Description
`private int`	`allowableBlockSize`
`private char[]`	`block`
`private int`	`blockCRC`
`(package private) boolean`	`blockRandomised`
`(package private) int`	`blockSize100k`
`(package private) int`	`bsBuff`
`(package private) int`	`bsLive`
`private java.io.OutputStream`	`bsStream`
`(package private) int`	`bytesOut`
`protected static int`	`CLEARMASK`
`(package private) boolean`	`closed`
`private int`	`combinedCRC`
`private int`	`currentChar`
`protected static int`	`DEPTH_THRESH`
`private boolean`	`firstAttempt`
`private int[]`	`ftab`
`protected static int`	`GREATER_ICOST`
`private int[]`	`incs`
`private boolean[]`	`inUse`
`(package private) int`	`last`
`protected static int`	`LESSER_ICOST`
`(package private) CRC`	`mCrc`
`private int[]`	`mtfFreq`
`private int`	`nBlocksRandomised`
`private int`	`nInUse`
`private int`	`nMTF`
`(package private) int`	`origPtr`
`protected static int`	`QSORT_STACK_SIZE`
`private int[]`	`quadrant`
`private int`	`runLength`
`private char[]`	`selector`
`private char[]`	`selectorMtf`
`private char[]`	`seqToUnseq`
`protected static int`	`SETMASK`
`protected static int`	`SMALL_THRESH`
`private short[]`	`szptr`
`private char[]`	`unseqToSeq`
`private int`	`workDone`
`private int`	`workFactor`
`private int`	`workLimit`
`private int[]`	`zptr`

Fields inherited from interface gov.nih.mipav.model.file.BZip2Constants
baseBlockSize, G_SIZE, MAX_ALPHA_SIZE, MAX_CODE_LEN, MAX_SELECTORS, N_GROUPS, N_ITERS, NUM_OVERSHOOT_BYTES, rNums, RUNA, RUNB

Constructor Summary

Constructors
Constructor Description

CBZip2OutputStream(java.io.OutputStream inStream)

CBZip2OutputStream(java.io.OutputStream inStream, int inBlockSize)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private void`	`allocateCompressStructures()`
`private void`	`bsFinishedWithStream()`
`private void`	`bsPutint(int u)`
`private void`	`bsPutIntVS(int numBits, int c)`
`private void`	`bsPutUChar(int c)`
`private void`	`bsSetStream(java.io.OutputStream f)`
`private void`	`bsW(int n, int v)`
`void`	`close()`
`private void`	`doReversibleTransformation()`
`private void`	`endBlock()`
`private void`	`endCompression()`
`protected void`	`finalize()`
`void`	`flush()`
`private boolean`	`fullGtU(int i1, int i2)`
`private void`	`generateMTFValues()`
`private void`	`hbAssignCodes(int[] code, char[] length, int minLen, int maxLen, int alphaSize)`
`protected static void`	`hbMakeCodeLengths(char[] len, int[] freq, int alphaSize, int maxLen)`
`private void`	`initBlock()`
`private void`	`initialize()`
`private void`	`mainSort()`
`private void`	`makeMaps()`
`private char`	`med3(char a, char b, char c)`
`private void`	`moveToFrontCodeAndSend()`
`private static void`	`panic()`
`private void`	`qSort3(int loSt, int hiSt, int dSt)`
`private void`	`randomiseBlock()`
`private void`	`sendMTFValues()`
`private void`	`simpleSort(int lo, int hi, int d)`
`private void`	`vswap(int p1, int p2, int n)`
`void`	`write(int bv)`	modified by Oliver Merkel, 010128
`private void`	`writeRun()`

Methods inherited from class java.io.OutputStream
nullOutputStream, write, write

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SETMASK
```
protected static final int SETMASK
```
See Also:

Constant Field Values

CLEARMASK
```
protected static final int CLEARMASK
```
See Also:

Constant Field Values

GREATER_ICOST
```
protected static final int GREATER_ICOST
```
See Also:

Constant Field Values

LESSER_ICOST
```
protected static final int LESSER_ICOST
```
See Also:

Constant Field Values

SMALL_THRESH
```
protected static final int SMALL_THRESH
```
See Also:

Constant Field Values

DEPTH_THRESH
```
protected static final int DEPTH_THRESH
```
See Also:

Constant Field Values

QSORT_STACK_SIZE
```
protected static final int QSORT_STACK_SIZE
```
See Also:

Constant Field Values

last
```
int last
```

origPtr
```
int origPtr
```

blockSize100k
```
int blockSize100k
```

blockRandomised
```
boolean blockRandomised
```

bytesOut
```
int bytesOut
```

bsBuff
```
int bsBuff
```

bsLive
```
int bsLive
```

mCrc
```
CRC mCrc
```

inUse
```
private boolean[] inUse
```

nInUse
```
private int nInUse
```

seqToUnseq
```
private char[] seqToUnseq
```

unseqToSeq
```
private char[] unseqToSeq
```

selector
```
private char[] selector
```

selectorMtf
```
private char[] selectorMtf
```

block
```
private char[] block
```

quadrant
```
private int[] quadrant
```

zptr
```
private int[] zptr
```

szptr
```
private short[] szptr
```

ftab
```
private int[] ftab
```

nMTF
```
private int nMTF
```

mtfFreq
```
private int[] mtfFreq
```

workFactor
```
private int workFactor
```

workDone
```
private int workDone
```

workLimit
```
private int workLimit
```

firstAttempt
```
private boolean firstAttempt
```

nBlocksRandomised
```
private int nBlocksRandomised
```

currentChar
```
private int currentChar
```

runLength
```
private int runLength
```

closed
```
boolean closed
```

blockCRC
```
private int blockCRC
```

combinedCRC
```
private int combinedCRC
```

allowableBlockSize
```
private int allowableBlockSize
```

bsStream
```
private java.io.OutputStream bsStream
```

incs
```
private int[] incs
```

Constructor Detail

CBZip2OutputStream

public CBZip2OutputStream(java.io.OutputStream inStream)
                   throws java.io.IOException

Throws:: java.io.IOException

CBZip2OutputStream

public CBZip2OutputStream(java.io.OutputStream inStream,
                          int inBlockSize)
                   throws java.io.IOException

Throws:: java.io.IOException

Method Detail

panic
```
private static void panic()
```

makeMaps
```
private void makeMaps()
```

hbMakeCodeLengths

protected static void hbMakeCodeLengths(char[] len,
                                        int[] freq,
                                        int alphaSize,
                                        int maxLen)

write
```
public void write(int bv)
           throws java.io.IOException
```
modified by Oliver Merkel, 010128

Specified by:

write in class java.io.OutputStream

Throws:

java.io.IOException

writeRun

private void writeRun()
               throws java.io.IOException

Throws:: java.io.IOException

finalize
```
protected void finalize()
                 throws java.lang.Throwable
```
Overrides:

finalize in class java.lang.Object

Throws:

java.lang.Throwable

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.OutputStream

Throws:

java.io.IOException

flush
```
public void flush()
           throws java.io.IOException
```
Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class java.io.OutputStream

Throws:

java.io.IOException

initialize

private void initialize()
                 throws java.io.IOException

Throws:: java.io.IOException

initBlock
```
private void initBlock()
```

endBlock

private void endBlock()
               throws java.io.IOException

Throws:: java.io.IOException

endCompression

private void endCompression()
                     throws java.io.IOException

Throws:: java.io.IOException

hbAssignCodes

private void hbAssignCodes(int[] code,
                           char[] length,
                           int minLen,
                           int maxLen,
                           int alphaSize)

bsSetStream

private void bsSetStream(java.io.OutputStream f)

bsFinishedWithStream

private void bsFinishedWithStream()
                           throws java.io.IOException

Throws:: java.io.IOException

bsW

private void bsW(int n,
                 int v)
          throws java.io.IOException

Throws:: java.io.IOException

bsPutUChar

private void bsPutUChar(int c)
                 throws java.io.IOException

Throws:: java.io.IOException

bsPutint

private void bsPutint(int u)
               throws java.io.IOException

Throws:: java.io.IOException

bsPutIntVS

private void bsPutIntVS(int numBits,
                        int c)
                 throws java.io.IOException

Throws:: java.io.IOException

sendMTFValues

private void sendMTFValues()
                    throws java.io.IOException

Throws:: java.io.IOException

moveToFrontCodeAndSend

private void moveToFrontCodeAndSend()
                             throws java.io.IOException

Throws:: java.io.IOException

simpleSort

private void simpleSort(int lo,
                        int hi,
                        int d)

vswap

private void vswap(int p1,
                   int p2,
                   int n)

med3

private char med3(char a,
                  char b,
                  char c)

qSort3

private void qSort3(int loSt,
                    int hiSt,
                    int dSt)

mainSort
```
private void mainSort()
```

randomiseBlock
```
private void randomiseBlock()
```

doReversibleTransformation

private void doReversibleTransformation()

fullGtU

private boolean fullGtU(int i1,
                        int i2)

allocateCompressStructures

private void allocateCompressStructures()

generateMTFValues
```
private void generateMTFValues()
```

Constructor	Description
`CBZip2OutputStream(java.io.OutputStream inStream)`
`CBZip2OutputStream(java.io.OutputStream inStream, int inBlockSize)`

Class CBZip2OutputStream

Nested Class Summary

Field Summary

Fields inherited from interface gov.nih.mipav.model.file.BZip2Constants

Constructor Summary

Method Summary

Methods inherited from class java.io.OutputStream

Methods inherited from class java.lang.Object

Field Detail

SETMASK

CLEARMASK

GREATER_ICOST

LESSER_ICOST

SMALL_THRESH

DEPTH_THRESH

QSORT_STACK_SIZE

last

origPtr

blockSize100k

blockRandomised

bytesOut

bsBuff

bsLive

mCrc

inUse

nInUse

seqToUnseq

unseqToSeq

selector

selectorMtf

block

quadrant

zptr

szptr

ftab

nMTF

mtfFreq

workFactor

workDone

workLimit

firstAttempt

nBlocksRandomised

currentChar

runLength

closed

blockCRC

combinedCRC

allowableBlockSize

bsStream

incs

Constructor Detail

CBZip2OutputStream

CBZip2OutputStream

Method Detail

panic

makeMaps

hbMakeCodeLengths

write

writeRun

finalize

close

flush

initialize

initBlock

endBlock

endCompression

hbAssignCodes

bsSetStream

bsFinishedWithStream

bsW

bsPutUChar

bsPutint

bsPutIntVS

sendMTFValues

moveToFrontCodeAndSend

simpleSort

vswap

med3

qSort3

mainSort