javax.mail.util
class SharedByteArrayInputStream

All Implemented Interfaces:

SharedInputStream

public class SharedByteArrayInputStream
extends ByteArrayInputStream
implements SharedInputStream

A ByteArrayInputStream that implements the SharedInputStream interface, allowing the underlying byte array to be shared between multiple readers.

start

protected int start

Position within shared buffer that this stream starts at.

SharedByteArrayInputStream

public SharedByteArrayInputStream(byte[] buf)

Create a SharedByteArrayInputStream representing the entire byte array.

Parameters:

buf - the byte array

SharedByteArrayInputStream

public SharedByteArrayInputStream(byte[] buf,
                                  int offset,
                                  int length)

Create a SharedByteArrayInputStream representing the part of the byte array from offset for length bytes.

Parameters:

buf - the byte array

offset - offset in byte array to first byte to include

length - number of bytes to include

getPosition

public long getPosition()

Return the current position in the InputStream, as an offset from the beginning of the InputStream.

Returns:

the current position

newStream

public InputStream newStream(long start,
                             long end)

Return a new InputStream representing a subset of the data from this InputStream, starting at start (inclusive) up to end (exclusive). start must be non-negative. If end is -1, the new stream ends at the same place as this stream. The returned InputStream will also implement the SharedInputStream interface.

Parameters:

start - the starting position

end - the ending position + 1

Returns:

the new stream