javax.mail.util
Class SharedByteArrayInputStream

java.lang.Object
  java.io.InputStream
      java.io.ByteArrayInputStream
          javax.mail.util.SharedByteArrayInputStream

All Implemented Interfaces:

Closeable, SharedInputStream

public class SharedByteArrayInputStream
extends ByteArrayInputStream
implements SharedInputStream

Field Summary

protected int

start Position within shared buffer that this stream starts at.

Fields inherited from class java.io.ByteArrayInputStream

buf, count, mark, pos

Constructor Summary

SharedByteArrayInputStream(byte[] buf)
Create a SharedByteArrayInputStream that shares the entire buffer.

SharedByteArrayInputStream(byte[] buf, int offset, int length)
Create a SharedByteArrayInputStream using a subset of the array data.

Method Summary

long	getPosition() Get the position within the output stream, adjusted by the starting offset.
InputStream	newStream(long offset, long end) Create a new input stream from this input stream, accessing a subset of the data.

Methods inherited from class java.io.ByteArrayInputStream

available, close, mark, markSupported, read, read, reset, skip

Methods inherited from class java.io.InputStream

read

Methods inherited from class java.lang.Object

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

Field Detail

start

protected int start

Position within shared buffer that this stream starts at.

Constructor Detail

SharedByteArrayInputStream

public SharedByteArrayInputStream(byte[] buf)

Create a SharedByteArrayInputStream that shares the entire buffer.

Parameters:

buf - The input data.

SharedByteArrayInputStream

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

Create a SharedByteArrayInputStream using a subset of the array data.

Parameters:

buf - The source data array.

offset - The starting offset within the array.

length - The length of data to use.

Method Detail

getPosition

public long getPosition()

Get the position within the output stream, adjusted by the starting offset.

Specified by:

getPosition in interface SharedInputStream

Returns:

The adjusted position within the stream.

newStream

public InputStream newStream(long offset,
                             long end)

Create a new input stream from this input stream, accessing a subset of the data. Think of it as a substring operation for a stream. The starting offset must be non-negative. The end offset can by -1, which means use the remainder of the stream.

Specified by:

newStream in interface SharedInputStream

Parameters:

offset - The starting offset.

end - The end offset (which can be -1).

Returns:

An InputStream configured to access the indicated data subrange.