Class XZCompressorOutputStream
java.lang.Object
java.io.OutputStream
java.io.FilterOutputStream
org.apache.commons.compress.compressors.CompressorOutputStream<org.tukaani.xz.XZOutputStream>
org.apache.commons.compress.compressors.xz.XZCompressorOutputStream
- All Implemented Interfaces:
Closeable,Flushable,AutoCloseable
XZ compressor.
Calling flush()
Calling FilterOutputStream.flush() 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.
- Since:
- 1.4
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Field Summary
Fields inherited from class java.io.FilterOutputStream
out -
Constructor Summary
ConstructorsConstructorDescriptionXZCompressorOutputStream(OutputStream outputStream) Creates a new XZ compressor using the default LZMA2 options.XZCompressorOutputStream(OutputStream outputStream, int preset) Creates a new XZ compressor using the specified LZMA2 preset level. -
Method Summary
Methods inherited from class org.apache.commons.compress.compressors.CompressorOutputStream
outMethods inherited from class java.io.FilterOutputStream
close, flush, write, write
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Constructor Details
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XZCompressorOutputStream
Creates a new XZ compressor using the default LZMA2 options. This is equivalent toXZCompressorOutputStream(outputStream, 6).- Parameters:
outputStream- the stream to wrap- Throws:
IOException- on error
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XZCompressorOutputStream
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 wrappreset- the preset- Throws:
IOException- on error
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Method Details
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finish
Finishes compression without closing the underlying stream. No more data can be written to this stream after finishing.- Throws:
IOException- on error
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write
- Overrides:
writein classFilterOutputStream- Throws:
IOException
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