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Class java.util.zip.GZIPInputStream

java.lang.Object
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   +----java.io.InputStream
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           +----java.io.FilterInputStream
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                   +----java.util.zip.InflaterInputStream
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                           +----java.util.zip.GZIPInputStream

public class GZIPInputStream

extends InflaterInputStream

See Also:

InflaterInputStream

crc

CRC-32 for uncompressed data.

eos

Indicates end of input stream.

GZIP_MAGIC

GZIP header magic number.

GZIPInputStream(InputStream)

Creates a new input stream with a default buffer size.

GZIPInputStream(InputStream, int)

Creates a new input stream with the specified buffer size.

close()

Closes the input stream.

read(byte[], int, int)

Reads uncompressed data into an array of bytes.

protected CRC32 crc

CRC-32 for uncompressed data.

protected boolean eos

Indicates end of input stream.

public static final int GZIP_MAGIC

GZIP header magic number.

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

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

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

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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