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Commons Compress 1.5-redhat-1 | |||||||||
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java.lang.Objectjava.io.OutputStream
org.apache.commons.compress.compressors.CompressorOutputStream
org.apache.commons.compress.compressors.xz.XZCompressorOutputStream
public class XZCompressorOutputStream
XZ compressor.
Constructor Summary | |
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XZCompressorOutputStream(OutputStream outputStream)
Creates a new XZ compressor using the default LZMA2 options. |
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XZCompressorOutputStream(OutputStream outputStream,
int preset)
Creates a new XZ compressor using the specified LZMA2 preset level. |
Method Summary | |
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void |
close()
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void |
finish()
Finishes compression without closing the underlying stream. |
void |
flush()
Flushes the encoder and calls outputStream.flush() . |
void |
write(byte[] buf,
int off,
int len)
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void |
write(int b)
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Methods inherited from class java.io.OutputStream |
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write |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public XZCompressorOutputStream(OutputStream outputStream) throws IOException
XZCompressorOutputStream(6)
.
IOException
public XZCompressorOutputStream(OutputStream outputStream, int preset) throws IOException
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.
IOException
Method Detail |
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public void write(int b) throws IOException
write
in class OutputStream
IOException
public void write(byte[] buf, int off, int len) throws IOException
write
in class OutputStream
IOException
public void flush() throws IOException
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.
flush
in interface Flushable
flush
in class OutputStream
IOException
public void finish() throws IOException
IOException
public void close() throws IOException
close
in interface Closeable
close
in class OutputStream
IOException
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