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Class java.util.zip.GZIPInputStream 

java.lang.Object
   |
   +----java.io.InputStream
           |
           +----java.io.FilterInputStream
                   |
                   +----java.util.zip.InflaterInputStream
                           |
                           +----java.util.zip.GZIPInputStream
public class GZIPInputStream
extends InflaterInputStream
This class implements a stream filter for reading compressed data in the GZIP format.

See Also:
InflaterInputStream

Variable Index

o crc
CRC-32 for uncompressed data.
o eos
Indicates end of input stream.
o GZIP_MAGIC
GZIP header magic number.

Constructor Index

o GZIPInputStream(InputStream)
Creates a new input stream with a default buffer size.
o GZIPInputStream(InputStream, int)
Creates a new input stream with the specified buffer size.

Method Index

o close()
Closes the input stream.
o read(byte[], int, int)
Reads uncompressed data into an array of bytes.

Variables

o crc 
 protected CRC32 crc
CRC-32 for uncompressed data.

o eos 
 protected boolean eos
Indicates end of input stream.

o GZIP_MAGIC 
 public static final int GZIP_MAGIC
GZIP header magic number.

Constructors

o GZIPInputStream 
 public GZIPInputStream(InputStream in,
                        int size) throws IOException
Creates a new input stream with the specified buffer size.

Parameters:
in - the input stream
size - the input buffer size
Throws: IOException
if an I/O error has occurred
o GZIPInputStream 
 public GZIPInputStream(InputStream in) throws IOException
Creates a new input stream with a default buffer size.

Parameters:
in - the input stream
Throws: IOException
if an I/O error has occurred

Methods

o read 
 public int read(byte buf[],
                 int off,
                 int len) throws IOException
Reads uncompressed data into an array of bytes. Blocks until enough input is available for decompression.

Parameters:
buf - the buffer into which the data is read
off - the start offset of the data
len - the maximum number of bytes read
Returns:
the actual number of bytes read, or -1 if the end of the compressed input stream is reached
Throws: IOException
if an I/O error has occurred or the compressed input data is corrupt
Overrides:
read in class InflaterInputStream
o close 
 public void close() throws IOException
Closes the input stream.

Throws: IOException
if an I/O error has occurred
Overrides:
close in class FilterInputStream 
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