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java.lang.Objectorg.apache.hadoop.io.compress.zlib.ZlibFactory
public class ZlibFactory
A collection of factories to create the right zlib/gzip compressor/decompressor instances.
| Constructor Summary | |
|---|---|
ZlibFactory()
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| Method Summary | |
|---|---|
static ZlibCompressor.CompressionLevel |
getCompressionLevel(Configuration conf)
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static ZlibCompressor.CompressionStrategy |
getCompressionStrategy(Configuration conf)
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static Compressor |
getZlibCompressor(Configuration conf)
Return the appropriate implementation of the zlib compressor. |
static Class<? extends Compressor> |
getZlibCompressorType(Configuration conf)
Return the appropriate type of the zlib compressor. |
static Decompressor |
getZlibDecompressor(Configuration conf)
Return the appropriate implementation of the zlib decompressor. |
static Class<? extends Decompressor> |
getZlibDecompressorType(Configuration conf)
Return the appropriate type of the zlib decompressor. |
static boolean |
isNativeZlibLoaded(Configuration conf)
Check if native-zlib code is loaded & initialized correctly and can be loaded for this job. |
static void |
setCompressionLevel(Configuration conf,
ZlibCompressor.CompressionLevel level)
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static void |
setCompressionStrategy(Configuration conf,
ZlibCompressor.CompressionStrategy strategy)
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| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public ZlibFactory()
| Method Detail |
|---|
public static boolean isNativeZlibLoaded(Configuration conf)
conf - configuration
true if native-zlib is loaded & initialized
and can be loaded for this job, else falsepublic static Class<? extends Compressor> getZlibCompressorType(Configuration conf)
conf - configuration
public static Compressor getZlibCompressor(Configuration conf)
conf - configuration
public static Class<? extends Decompressor> getZlibDecompressorType(Configuration conf)
conf - configuration
public static Decompressor getZlibDecompressor(Configuration conf)
conf - configuration
public static void setCompressionStrategy(Configuration conf,
ZlibCompressor.CompressionStrategy strategy)
public static ZlibCompressor.CompressionStrategy getCompressionStrategy(Configuration conf)
public static void setCompressionLevel(Configuration conf,
ZlibCompressor.CompressionLevel level)
public static ZlibCompressor.CompressionLevel getCompressionLevel(Configuration conf)
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