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java.lang.Objectorg.apache.hadoop.io.compress.bzip2.BZip2DummyCompressor
public class BZip2DummyCompressor
This is a dummy compressor for BZip2.
| Constructor Summary | |
|---|---|
BZip2DummyCompressor()
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| Method Summary | |
|---|---|
int |
compress(byte[] b,
int off,
int len)
Fills specified buffer with compressed data. |
void |
end()
Closes the compressor and discards any unprocessed input. |
void |
finish()
When called, indicates that compression should end with the current contents of the input buffer. |
boolean |
finished()
Returns true if the end of the compressed data output stream has been reached. |
long |
getBytesRead()
Return number of uncompressed bytes input so far. |
long |
getBytesWritten()
Return number of compressed bytes output so far. |
boolean |
needsInput()
Returns true if the input data buffer is empty and #setInput() should be called to provide more input. |
void |
reinit(Configuration conf)
Prepare the compressor to be used in a new stream with settings defined in the given Configuration |
void |
reset()
Resets compressor so that a new set of input data can be processed. |
void |
setDictionary(byte[] b,
int off,
int len)
Sets preset dictionary for compression. |
void |
setInput(byte[] b,
int off,
int len)
Sets input data for compression. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public BZip2DummyCompressor()
| Method Detail |
|---|
public int compress(byte[] b,
int off,
int len)
throws IOException
Compressor
compress in interface Compressorb - Buffer for the compressed dataoff - Start offset of the datalen - Size of the buffer
IOExceptionpublic void end()
Compressor
end in interface Compressorpublic void finish()
Compressor
finish in interface Compressorpublic boolean finished()
Compressor
finished in interface Compressortrue if the end of the compressed
data output stream has been reached.public long getBytesRead()
Compressor
getBytesRead in interface Compressorpublic long getBytesWritten()
Compressor
getBytesWritten in interface Compressorpublic boolean needsInput()
Compressor
needsInput in interface Compressortrue if the input data buffer is empty and
#setInput() should be called in order to provide more input.public void reset()
Compressor
reset in interface Compressor
public void setDictionary(byte[] b,
int off,
int len)
Compressor
setDictionary in interface Compressorb - Dictionary data bytesoff - Start offsetlen - Length
public void setInput(byte[] b,
int off,
int len)
Compressortrue indicating that more input data is required.
setInput in interface Compressorb - Input dataoff - Start offsetlen - Lengthpublic void reinit(Configuration conf)
Compressor
reinit in interface Compressorconf - Configuration from which new setting are fetched
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