Class InputStreamByteSource

java.lang.Object

org.apache.commons.imaging.bytesource.ByteSource

org.apache.commons.imaging.bytesource.InputStreamByteSource

final class InputStreamByteSource
extends ByteSource

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private final class	InputStreamByteSource.Block	A block of bytes (a byte array).
private final class	InputStreamByteSource.BlockInputStream

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	BLOCK_SIZE
private final InputStreamByteSource.Block	headBlock
private final InputStream	inputStream
private long	streamLength

Constructor Summary

Constructors

Constructor	Description
InputStreamByteSource(InputStream inputStream, String fileName)

Method Summary

Modifier and Type	Method	Description
byte[]	getByteArray(long position, int length)
private InputStreamByteSource.Block	getFirstBlock()
InputStream	getInputStream()
private InputStreamByteSource.Block	readBlock()
long	size()	This operation can be VERY expensive; for InputStream byte sources, the entire stream must be drained to determine its length.

Methods inherited from class ByteSource

array, array, file, getFileName, getInputStream, inputStream, path, toString

Methods inherited from class Object

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

Field Details

BLOCK_SIZE

private static final int BLOCK_SIZE

See Also:

• Constant Field Values

inputStream

private final InputStream inputStream

headBlock

private final InputStreamByteSource.Block headBlock

streamLength

private long streamLength

Constructor Details

InputStreamByteSource

InputStreamByteSource(InputStream inputStream,
 String fileName)
               throws IOException

Throws:

IOException

Method Details

getByteArray

public byte[] getByteArray(long position,
 int length)
                    throws IOException

Overrides:

getByteArray in class ByteSource

Throws:

IOException

getFirstBlock

private InputStreamByteSource.Block getFirstBlock()
                                           throws IOException

Throws:

IOException

getInputStream

public InputStream getInputStream()
                           throws IOException

Overrides:

getInputStream in class ByteSource

Throws:

IOException

readBlock

private InputStreamByteSource.Block readBlock()
                                       throws IOException

Throws:

IOException

size

public long size()
          throws IOException

Description copied from class: ByteSource

This operation can be VERY expensive; for InputStream byte sources, the entire stream must be drained to determine its length.

Overrides:

size in class ByteSource

Returns:

the byte source length

Throws:

IOException - if it fails to read the byte source data