Standard Widget Toolkit for GTK 3.125.0 · org.eclipse.swt.internal.image.LEDataInputStream

Modifier and Type	Field and Description
protected byte[]	buf The byte array containing the bytes to read.
pack-priv InputStream	in
protected int	pos The current position within the byte array `buf`.
pack-priv int	position

Access	Constructor and Description
public	LEDataInputStream(InputStream input)
public	LEDataInputStream(InputStream input, int bufferSize)

Method Summary

Modifier and Type	Method and Description
public int	available() Overrides java.io.InputStream.available. Answers how many bytes are available for reading without blocking
public void	close() Overrides java.io.InputStream.close. Implements java.io.Closeable.close. Closes this input stream and releases any system resources associated with the stream.
public int	getPosition() Answer how many bytes were read.
public int	read() Implements abstract java.io.InputStream.read. Answer the next byte of the input stream.
public int	read(byte[] the buffer into which the data is read. b, int the start offset in array `b` at which the data is written. off, int the maximum number of bytes to read. len) Overrides java.io.InputStream.read. Don't imitate the JDK behaviour of reading a random number of bytes when you can actually read them all.
private int	Returns: int the number of bytes actually read or -1 if end of stream. readData(byte[] the byte array in which to store the read bytes. buffer, int the offset in `buffer` to store the read bytes. offset, int the maximum number of bytes to store in `buffer`. length) Reads at most `length` bytes from this LEDataInputStream and stores them in byte array `buffer` starting at `offset`.
public int	readInt() Answer an integer comprised of the next four bytes of the input stream.
public short	readShort() Answer a short comprised of the next two bytes of the input stream.
public void	unread(byte[] the byte array containing bytes to push back into the stream b) Push back the entire content of the given buffer `b`.

Inherited from java.io.InputStream:: mark markSupported nullInputStream read readAllBytes readNBytes readNBytes reset skip skipNBytes transferTo

buf	back to summary
protected byte[] buf The byte array containing the bytes to read.

in	back to summary
pack-priv InputStream in

pos	back to summary
protected int pos The current position within the byte array `buf`. A value equal to buf.length indicates no bytes available. A value of 0 indicates the buffer is full.

position	back to summary
pack-priv int position

LEDataInputStream	back to summary
public LEDataInputStream(InputStream input)

LEDataInputStream	back to summary
public LEDataInputStream(InputStream input, int bufferSize)

Method Detail

available back to summary

available	back to summary
public int available() throws IOException Overrides java.io.InputStream.available. Answers how many bytes are available for reading without blocking Returns:int Doc from java.io.InputStream.available. an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking or `0` when it reaches the end of the input stream. Annotations @Override Exceptions IOException: Doc from java.io.InputStream.available. if an I/O error occurs.

public int available() throws IOException

Overrides java.io.InputStream.available.

Answers how many bytes are available for reading without blocking

Returns:int

Doc from java.io.InputStream.available.

an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking or 0 when it reaches the end of the input stream.

Annotations

@Override

Exceptions

IOException:

Doc from java.io.InputStream.available.

if an I/O error occurs.

close	back to summary
public void close() throws IOException Overrides java.io.InputStream.close. Implements java.io.Closeable.close. Doc from java.io.InputStream.close. Closes this input stream and releases any system resources associated with the stream. Annotations @Override Exceptions IOException: if an I/O error occurs.

back to summary

public void close() throws IOException

Overrides java.io.InputStream.close.

Implements java.io.Closeable.close.

Doc from java.io.InputStream.close.

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

Annotations

@Override

Exceptions

IOException:: if an I/O error occurs.

getPosition	back to summary
public int getPosition() Answer how many bytes were read.

read back to summary

read	back to summary
public int read() throws IOException Implements abstract java.io.InputStream.read. Answer the next byte of the input stream. Returns:int Doc from java.io.InputStream.read. the next byte of data, or `-1` if the end of the stream is reached. Annotations @Override Exceptions IOException: Doc from java.io.InputStream.read. if an I/O error occurs.

public int read() throws IOException

Implements abstract java.io.InputStream.read.

Answer the next byte of the input stream.

Returns:int

Doc from java.io.InputStream.read.

the next byte of data, or -1 if the end of the stream is reached.

Annotations

@Override

Exceptions

IOException:

Doc from java.io.InputStream.read.

if an I/O error occurs.

read back to summary

read	back to summary
public int read(byte[] b, int off, int len) throws IOException Overrides java.io.InputStream.read. Don't imitate the JDK behaviour of reading a random number of bytes when you can actually read them all. Parameters b:byte[] Doc from java.io.InputStream.read. the buffer into which the data is read. off:int Doc from java.io.InputStream.read. the start offset in array `b` at which the data is written. len:int Doc from java.io.InputStream.read. the maximum number of bytes to read. Returns:int Doc from java.io.InputStream.read. the total number of bytes read into the buffer, or `-1` if there is no more data because the end of the stream has been reached. Annotations @Override Exceptions IOException: Doc from java.io.InputStream.read. If the first byte cannot be read for any reason other than end of file, or if the input stream has been closed, or if some other I/O error occurs.

public int read(byte[] b, int off, int len) throws IOException

Overrides java.io.InputStream.read.

Don't imitate the JDK behaviour of reading a random number of bytes when you can actually read them all.

Parameters

b:byte[]

Doc from java.io.InputStream.read.

the buffer into which the data is read.

off:int

Doc from java.io.InputStream.read.

the start offset in array b at which the data is written.

len:int

Doc from java.io.InputStream.read.

the maximum number of bytes to read.

Returns:int

Doc from java.io.InputStream.read.

the total number of bytes read into the buffer, or -1 if there is no more data because the end of the stream has been reached.

Annotations

@Override

Exceptions

IOException:

Doc from java.io.InputStream.read.

If the first byte cannot be read for any reason other than end of file, or if the input stream has been closed, or if some other I/O error occurs.

readData back to summary

readData	back to summary
private int readData(byte[] buffer, int offset, int length) throws IOException Reads at most `length` bytes from this LEDataInputStream and stores them in byte array `buffer` starting at `offset`. Answer the number of bytes actually read or -1 if no bytes were read and end of stream was encountered. This implementation reads bytes from the pushback buffer first, then the target stream if more bytes are required to satisfy `count`. Parameters buffer:byte[] the byte array in which to store the read bytes. offset:int the offset in `buffer` to store the read bytes. length:int the maximum number of bytes to store in `buffer`. Returns:int int the number of bytes actually read or -1 if end of stream. Exceptions IOException: if an IOException occurs.

private int readData(byte[] buffer, int offset, int length) throws IOException

Reads at most length bytes from this LEDataInputStream and stores them in byte array buffer starting at offset.

Answer the number of bytes actually read or -1 if no bytes were read and end of stream was encountered. This implementation reads bytes from the pushback buffer first, then the target stream if more bytes are required to satisfy count.

Parameters

buffer:byte[]: the byte array in which to store the read bytes.
offset:int: the offset in buffer to store the read bytes.
length:int: the maximum number of bytes to store in buffer.

Returns:int

int the number of bytes actually read or -1 if end of stream.

Exceptions

IOException:: if an IOException occurs.

readInt	back to summary
public int readInt() throws IOException Answer an integer comprised of the next four bytes of the input stream.

readShort	back to summary
public short readShort() throws IOException Answer a short comprised of the next two bytes of the input stream.

unread back to summary

unread	back to summary
public void unread(byte[] b) throws IOException Push back the entire content of the given buffer `b`. The bytes are pushed so that they would be read back b[0], b[1], etc. If the push back buffer cannot handle the bytes copied from `b`, an IOException will be thrown and no byte will be pushed back. Parameters b:byte[] the byte array containing bytes to push back into the stream Exceptions IOException: if the pushback buffer is too small

public void unread(byte[] b) throws IOException

Push back the entire content of the given buffer b.

The bytes are pushed so that they would be read back b[0], b[1], etc. If the push back buffer cannot handle the bytes copied from b, an IOException will be thrown and no byte will be pushed back.

Parameters

b:byte[]: the byte array containing bytes to push back into the stream

Exceptions

IOException:: if the pushback buffer is too small

pack-priv final Class LEDataInputStream

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail