Constructor Detail

• XZCompressorOutputStream

  public XZCompressorOutputStream(OutputStream outputStream)
                           throws IOException

  Creates a new XZ compressor using the default LZMA2 options. This is equivalent to XZCompressorOutputStream(outputStream, 6).

  Parameters:

  outputStream - the stream to wrap

  Throws:

  IOException - on error

• XZCompressorOutputStream

  public XZCompressorOutputStream(OutputStream outputStream,
                          int preset)
                           throws IOException

  Creates a new XZ compressor using the specified LZMA2 preset level.

  The presets 0-3 are fast presets with medium compression. The presets 4-6 are fairly slow presets with high compression. The default preset is 6.

  The presets 7-9 are like the preset 6 but use bigger dictionaries and have higher compressor and decompressor memory requirements. Unless the uncompressed size of the file exceeds 8 MiB, 16 MiB, or 32 MiB, it is waste of memory to use the presets 7, 8, or 9, respectively.

  Parameters:

  outputStream - the stream to wrap

  preset - the preset

  Throws:

  IOException - on error

Method Detail

• write

  public void write(int b)
             throws IOException

  Specified by:

  write in class OutputStream

  Throws:

  IOException

• write

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

  Overrides:

  write in class OutputStream

  Throws:

  IOException

• flush

  public void flush()
             throws IOException

  Flushes the encoder and calls outputStream.flush(). All buffered pending data will then be decompressible from the output stream. Calling this function very often may increase the compressed file size a lot.

  Specified by:

  flush in interface Flushable

  Overrides:

  flush in class OutputStream

  Throws:

  IOException

• finish

  public void finish()
              throws IOException

  Finishes compression without closing the underlying stream. No more data can be written to this stream after finishing.

  Throws:

  IOException - on error

• close

  public void close()
             throws IOException

  Specified by:

  close in interface Closeable

  Specified by:

  close in interface AutoCloseable

  Overrides:

  close in class OutputStream

  Throws:

  IOException