All Implemented Interfaces:

Closeable, AutoCloseable

public class GZIPInputStream
extends InflaterInputStream 

See Also:

InflaterInputStream

• Field Summary

  Fields

  Modifier and Type	Field	Description
  protected CRC32	crc	CRC-32 for uncompressed data.
  protected boolean	eos	Indicates end of input stream.
  static int	GZIP_MAGIC	GZIP header magic number.

  • Fields inherited from class java.util.zip.InflaterInputStream

    buf, inf, len

  • Fields inherited from class java.io.FilterInputStream

    in

• Constructor Summary

  Constructors

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

• Method Summary

  All Methods

  Modifier and Type	Method	Description
  void	close ()	Closes this input stream and releases any system resources associated with the stream.
  int	read (byte[] buf, int off, int len)	Reads uncompressed data into an array of bytes.

  • Methods inherited from class java.util.zip.InflaterInputStream

    available, fill, mark, markSupported, read, reset, skip

  • Methods inherited from class java.io.FilterInputStream

    read

  • Methods inherited from class java.lang.Object

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

• Field Detail

  • crc

    protected CRC32 crc

    CRC-32 for uncompressed data.

  • eos

    protected boolean eos

    Indicates end of input stream.

  • GZIP_MAGIC

    public static final int GZIP_MAGIC

    GZIP header magic number.

    See Also:

    Constant Field Values

• Constructor Detail

  • 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:

    ZipException - if a GZIP format error has occurred or the compression method used is unsupported

    IOException - if an I/O error has occurred

    IllegalArgumentException - if size <= 0

  • GZIPInputStream

    public GZIPInputStream(InputStream in)
     throws IOException 

    Creates a new input stream with a default buffer size.

    Parameters:

    in - the input stream

    Throws:

    ZipException - if a GZIP format error has occurred or the compression method used is unsupported

    IOException - if an I/O error has occurred

• Method Detail

  • read

    public 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.

    Overrides:

    read in class InflaterInputStream

    Parameters:

    buf - the buffer into which the data is read

    off - the start offset in the destination array b

    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:

    NullPointerException - 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.

    See Also:

    FilterInputStream.in

  • close

    public void close()
     throws IOException 

    Closes this input stream and releases any system resources associated with the stream.

    Specified by:

    close in interface Closeable

    Specified by:

    close in interface AutoCloseable

    Overrides:

    close in class InflaterInputStream

    Throws:

    IOException - if an I/O error has occurred

    See Also:

    FilterInputStream.in