org.opengis.cite.gmljpx20.util.jp2

Class StreamUtil

java.lang.Object

org.opengis.cite.gmljpx20.util.jp2.StreamUtil

public class StreamUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
StreamUtil()

Method Summary

Modifier and Type	Method and Description
static int	readBInt32(InputStream s) Reads a 4-byte signed integer from the current stream using big-endian encoding and advances the current position of the stream by four bytes.
static long	readBInt64(InputStream s) Reads an 8-byte signed integer from the current stream using big-endian encoding and advances the current position of the stream by eight bytes.
static short	readBUInt16(InputStream s) Reads a 2-byte unsigned integer from the current stream using big-endian encoding and advances the position of the stream by two bytes.
static long	readBUInt32(InputStream s) Reads a 4-byte unsigned integer from the current stream using big-endian encoding and advances the position of the stream by four bytes.
static long	readBUInt64(InputStream s) Reads an 8-byte unsigned integer from the current stream using big-endian encoding and advances the position of the stream by eight bytes.
static byte[]	readBytes(InputStream s, int count) Reads count bytes from the current stream into a byte array and advances the current position by count bytes.
static byte[]	readToEnd(InputStream s)

Methods inherited from class java.lang.Object

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

Constructor Detail

StreamUtil

public StreamUtil()

Method Detail

readBytes

public static byte[] readBytes(InputStream s,
                               int count)
                        throws IOException

Reads count bytes from the current stream into a byte array and advances the current position by count bytes.

Parameters:

s - The stream to read.

count - The number of bytes to read.

Returns:

A byte array containing data read from the underlying stream. This might be less than the number of bytes requested if the end of the stream is reached.

Throws:

IOException - An I/O error occurs. // @throws ObjectDisposedException The stream is closed. // @throws ArgumentOutOfRangeException count is negative.

readToEnd

public static byte[] readToEnd(InputStream s)
                        throws IOException

Throws:

IOException

readBInt32

public static int readBInt32(InputStream s)
                      throws Exception

Reads a 4-byte signed integer from the current stream using big-endian encoding and advances the current position of the stream by four bytes.

Parameters:

s - The stream to read.

Returns:

A 4-byte signed integer read from the current stream. // @throws EndOfStreamException The end of the stream is reached. // @throws ObjectDisposedException The stream is closed.

Throws:

IOException - An I/O error occurs.

Exception

readBInt64

public static long readBInt64(InputStream s)
                       throws Exception

Reads an 8-byte signed integer from the current stream using big-endian encoding and advances the current position of the stream by eight bytes.

Parameters:

s - The stream to read.

Returns:

An 8-byte signed integer read from the current stream.

Throws:

Exception - //@throws EndOfStreamException The end of the stream is reached. //@throws ObjectDisposedException The stream is closed.

IOException - An I/O error occurs.

readBUInt16

public static short readBUInt16(InputStream s)
                         throws Exception

Reads a 2-byte unsigned integer from the current stream using big-endian encoding and advances the position of the stream by two bytes.

Parameters:

s - The stream to read.

Returns:

A 2-byte unsigned integer read from this stream.

Throws:

Exception - //@throws EndOfStreamException The end of the stream is reached. //@throws ObjectDisposedException The stream is closed.

IOException - An I/O error occurs.

readBUInt32

public static long readBUInt32(InputStream s)
                        throws Exception

Reads a 4-byte unsigned integer from the current stream using big-endian encoding and advances the position of the stream by four bytes.

Parameters:

s - The stream to read.

Returns:

A 4-byte unsigned integer read from this stream.

Throws:

Exception - //@throws EndOfStreamException The end of the stream is reached. //@throws ObjectDisposedException The stream is closed.

IOException - An I/O error occurs.

readBUInt64

public static long readBUInt64(InputStream s)
                        throws Exception

Reads an 8-byte unsigned integer from the current stream using big-endian encoding and advances the position of the stream by eight bytes.

Parameters:

s - The stream to read.

Returns:

An 8-byte unsigned integer read from this stream.

Throws:

Exception - //@throws EndOfStreamException The end of the stream is reached. //@throws ObjectDisposedException The stream is closed.

IOException - An I/O error occurs.