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java.lang.Object org.apache.hadoop.io.compress.LzoCodec
public class LzoCodec
A CompressionCodec
for a streaming
lzo compression/decompression pair.
http://www.oberhumer.com/opensource/lzo/
Constructor Summary | |
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LzoCodec()
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Method Summary | |
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Compressor |
createCompressor()
Create a new Compressor for use by this CompressionCodec . |
Decompressor |
createDecompressor()
Create a new Decompressor for use by this CompressionCodec . |
CompressionInputStream |
createInputStream(InputStream in)
Create a stream decompressor that will read from the given input stream. |
CompressionInputStream |
createInputStream(InputStream in,
Decompressor decompressor)
Create a CompressionInputStream that will read from the given
InputStream with the given Decompressor . |
CompressionOutputStream |
createOutputStream(OutputStream out)
Create a CompressionOutputStream that will write to the given
OutputStream . |
CompressionOutputStream |
createOutputStream(OutputStream out,
Compressor compressor)
Create a CompressionOutputStream that will write to the given
OutputStream with the given Compressor . |
Class<? extends Compressor> |
getCompressorType()
Get the type of Compressor needed by this CompressionCodec . |
Configuration |
getConf()
Return the configuration used by this object. |
Class<? extends Decompressor> |
getDecompressorType()
Get the type of Decompressor needed by this CompressionCodec . |
String |
getDefaultExtension()
Get the default filename extension for this kind of compression. |
static boolean |
isNativeLzoLoaded(Configuration conf)
Check if native-lzo library is loaded & initialized. |
void |
setConf(Configuration conf)
Set the configuration to be used by this object. |
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 LzoCodec()
Method Detail |
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public void setConf(Configuration conf)
Configurable
setConf
in interface Configurable
public Configuration getConf()
Configurable
getConf
in interface Configurable
public static boolean isNativeLzoLoaded(Configuration conf)
conf
- configuration
true
if native-lzo library is loaded & initialized;
else false
public CompressionOutputStream createOutputStream(OutputStream out) throws IOException
CompressionCodec
CompressionOutputStream
that will write to the given
OutputStream
.
createOutputStream
in interface CompressionCodec
out
- the location for the final output stream
IOException
public CompressionOutputStream createOutputStream(OutputStream out, Compressor compressor) throws IOException
CompressionCodec
CompressionOutputStream
that will write to the given
OutputStream
with the given Compressor
.
createOutputStream
in interface CompressionCodec
out
- the location for the final output streamcompressor
- compressor to use
IOException
public Class<? extends Compressor> getCompressorType()
CompressionCodec
Compressor
needed by this CompressionCodec
.
getCompressorType
in interface CompressionCodec
public Compressor createCompressor()
CompressionCodec
Compressor
for use by this CompressionCodec
.
createCompressor
in interface CompressionCodec
public CompressionInputStream createInputStream(InputStream in) throws IOException
CompressionCodec
createInputStream
in interface CompressionCodec
in
- the stream to read compressed bytes from
IOException
public CompressionInputStream createInputStream(InputStream in, Decompressor decompressor) throws IOException
CompressionCodec
CompressionInputStream
that will read from the given
InputStream
with the given Decompressor
.
createInputStream
in interface CompressionCodec
in
- the stream to read compressed bytes fromdecompressor
- decompressor to use
IOException
public Class<? extends Decompressor> getDecompressorType()
CompressionCodec
Decompressor
needed by this CompressionCodec
.
getDecompressorType
in interface CompressionCodec
public Decompressor createDecompressor()
CompressionCodec
Decompressor
for use by this CompressionCodec
.
createDecompressor
in interface CompressionCodec
public String getDefaultExtension()
getDefaultExtension
in interface CompressionCodec
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