Package org.apache.hadoop.io.compress.zlib

Class BuiltInZlibInflater

java.lang.Object

java.util.zip.Inflater

org.apache.hadoop.io.compress.zlib.BuiltInZlibInflater

All Implemented Interfaces:

Decompressor

public class BuiltInZlibInflater
extends Inflater
implements Decompressor

A wrapper around java.util.zip.Inflater to make it conform to org.apache.hadoop.io.compress.Decompressor interface.

Constructor Summary

Constructors

Constructor	Description
BuiltInZlibInflater()
BuiltInZlibInflater(boolean nowrap)

Method Summary

Modifier and Type	Method	Description
int	decompress(byte[] b, int off, int len)	Fills specified buffer with uncompressed data.

Methods inherited from class java.util.zip.Inflater

end, finished, getAdler, getBytesRead, getBytesWritten, getRemaining, getTotalIn, getTotalOut, inflate, inflate, inflate, needsDictionary, needsInput, reset, setDictionary, setDictionary, setDictionary, setInput, setInput, setInput

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.hadoop.io.compress.Decompressor

end, finished, getRemaining, needsDictionary, needsInput, reset, setDictionary, setInput

Constructor Details

BuiltInZlibInflater

public BuiltInZlibInflater(boolean nowrap)

BuiltInZlibInflater

public BuiltInZlibInflater()

Method Details

decompress

public int decompress(byte[] b,
 int off,
 int len)
               throws IOException

Description copied from interface: Decompressor

Fills specified buffer with uncompressed data. Returns actual number of bytes of uncompressed data. A return value of 0 indicates that Decompressor.needsInput() should be called in order to determine if more input data is required.

Specified by:

decompress in interface Decompressor

Parameters:

b - Buffer for the uncompressed data

off - Start offset of the data

len - Size of the buffer

Returns:

The actual number of bytes of uncompressed data.

Throws:

IOException - raised on errors performing I/O.