public class

GZIPInputStream

extends InflaterInputStream

java.lang.Object
↳	java.io.InputStream
	↳	java.io.FilterInputStream
		↳	java.util.zip.InflaterInputStream
			↳	java.util.zip.GZIPInputStream

Class Overview

The GZIPInputStream class is used to read data stored in the GZIP format, reading and decompressing GZIP data from the underlying stream into its buffer.

Summary

Constants
int	GZIP_MAGIC	The magic header for the GZIP format.

Fields
protected CRC32	crc	The checksum algorithm used when handling uncompressed data.
protected boolean	eos	Indicates the end of the input stream.

[Expand]

Inherited Fields

From class java.util.zip.InflaterInputStream

From class java.io.FilterInputStream

Public Constructors
	GZIPInputStream(InputStream is) Construct a `GZIPInputStream` to read from GZIP data from the underlying stream.
	GZIPInputStream(InputStream is, int size) Construct a `GZIPInputStream` to read from GZIP data from the underlying stream.

Public Methods
void	close() Closes the input stream.
int	read(byte[] buffer, int off, int nbytes) Reads up to `nbytes` of decompressed data and stores it in `buffer` starting at `off`.

[Expand]

Inherited Methods

From class java.util.zip.InflaterInputStream

int	available() Returns whether data can be read from this stream.
void	close() Closes the input stream.
void	fill() Fills the input buffer with data to be decompressed.
void	mark(int readlimit) This implementation overrides the super type implementation to do nothing at all.
boolean	markSupported() Returns whether the receiver implements `mark` semantics.
int	read(byte[] buffer, int off, int nbytes) Reads up to `nbytes` of decompressed data and stores it in `buffer` starting at `off`.
int	read() Reads a single byte of decompressed data.
void	reset() Reset the position of the stream to the last marked position.
long	skip(long nbytes) Skips up to n bytes of uncompressed data.

From class java.io.FilterInputStream

int	available() Returns the number of bytes that are available before this stream will block.
void	close() Closes this stream.
synchronized void	mark(int readlimit) Sets a mark position in this stream.
boolean	markSupported() Indicates whether this stream supports `mark()` and `reset()`.
int	read(byte[] buffer, int offset, int count) Reads at most `count` bytes from this stream and stores them in the byte array `buffer` starting at `offset`.
int	read(byte[] buffer) Reads bytes from this stream and stores them in the byte array `buffer`.
int	read() Reads a single byte from the filtered stream and returns it as an integer in the range from 0 to 255.
synchronized void	reset() Resets this stream to the last marked location.
long	skip(long count) Skips `count` number of bytes in this stream.

From class java.io.InputStream

int	available() Returns the number of bytes that are available before this stream will block.
void	close() Closes this stream.
void	mark(int readlimit) Sets a mark position in this InputStream.
boolean	markSupported() Indicates whether this stream supports the `mark()` and `reset()` methods.
int	read(byte[] b, int offset, int length) Reads at most `length` bytes from this stream and stores them in the byte array `b` starting at `offset`.
int	read(byte[] b) Reads bytes from this stream and stores them in the byte array `b`.
abstract int	read() Reads a single byte from this stream and returns it as an integer in the range from 0 to 255.
synchronized void	reset() Resets this stream to the last marked location.
long	skip(long n) Skips at most `n` bytes in this stream.

From class java.lang.Object

Object	clone() Creates and returns a copy of this `Object`.
boolean	equals(Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Is called before the object's memory is being reclaimed by the VM.
final Class<? extends Object>	getClass() Returns the unique instance of Class which represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait(long millis, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait(long millis) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.

From interface java.io.Closeable

Constants

public static final int GZIP_MAGIC

The magic header for the GZIP format.

Constant Value: 35615 (0x00008b1f)

Fields

protected CRC32 crc

The checksum algorithm used when handling uncompressed data.

protected boolean eos

Indicates the end of the input stream.

Public Constructors

public GZIPInputStream (InputStream is)

Construct a GZIPInputStream to read from GZIP data from the underlying stream.

Parameters

is	the `InputStream` to read data from.

Throws

IOException	if an `IOException` occurs.

public GZIPInputStream (InputStream is, int size)

Construct a GZIPInputStream to read from GZIP data from the underlying stream. Set the internal buffer size to size.

Parameters

is	the `InputStream` to read data from.
size	the internal read buffer size.

Throws

IOException	if an `IOException` occurs.

Public Methods

public void close ()

Closes the input stream.

Throws

IOException

public int read (byte[] buffer, int off, int nbytes)

Reads up to nbytes of decompressed data and stores it in buffer starting at off.

Parameters

buffer	the buffer to write data to.
off	offset in buffer to start writing.
nbytes	number of bytes to read.

Returns

Number of uncompressed bytes read

Throws

IOException

Interfaces

Classes

Exceptions

GZIPInputStream

Class Overview

Summary

Constants

public static final int GZIP_MAGIC

Fields

protected CRC32 crc

protected boolean eos

Public Constructors

public GZIPInputStream (InputStream is)

Parameters

Throws

public GZIPInputStream (InputStream is, int size)

Parameters

Throws

Public Methods

public void close ()

Throws

public int read (byte[] buffer, int off, int nbytes)

Parameters

Returns

Throws