public class GZIPInputStream extends InflaterInputStream
This class implements a stream filter for reading compressed data in the GZIP file format.
InflaterInputStream
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.
in
- the input streamsize
- the input buffer sizeZipException
- if a GZIP format error has occurred or the compression method used is unsupportedIOException
- if an I/O error has occurredIllegalArgumentException
- if size <= 0
public GZIPInputStream(InputStream in) throws IOException
Creates a new input stream with a default buffer size.
in
- the input streamZipException
- if a GZIP format error has occurred or the compression method used is unsupportedIOException
- if an I/O error has occurredpublic int read(byte[] buf, int off, int len) throws IOException
Reads uncompressed data into an array of bytes. If len
is not zero, the method will block until some input can be decompressed; otherwise, no bytes are read and 0
is returned.
read
in class InflaterInputStream
buf
- the buffer into which the data is readoff
- the start offset in the destination array b
len
- the maximum number of bytes readNullPointerException
- If buf
is null
.IndexOutOfBoundsException
- If off
is negative, len
is negative, or len
is greater than buf.length - off
ZipException
- if the compressed input data is corrupt.IOException
- if an I/O error has occurred.FilterInputStream.in
public void close() throws IOException
Closes this input stream and releases any system resources associated with the stream.
close
in interface Closeable
close
in interface AutoCloseable
close
in class InflaterInputStream
IOException
- if an I/O error has occurredFilterInputStream.in
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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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