com.adobe.internal.io.stream

Class RangeInputByteStream

java.lang.Object

com.adobe.internal.io.stream.InputByteStreamImpl

com.adobe.internal.io.stream.RangeInputByteStream

All Implemented Interfaces:

InputByteStream

public class RangeInputByteStream
extends InputByteStreamImpl

This InputByteStreamImpl implementation is only for internal engineering use. It is used only by the digsig package to wrap the digestible slices of the pdf document. The resulting inputStream is used by the verifier interfaces.

Field Summary

Fields inherited from interface com.adobe.internal.io.stream.InputByteStream

EOF

Constructor Summary

Constructors

Constructor and Description
RangeInputByteStream(InputByteStream ibs, long[] ranges) Create a chainedIBS from the ranges of interest.

Method Summary

Modifier and Type	Method and Description
void	close() Only for internal engineering use.
com.adobe.internal.io.stream.ChainedInputByteStream	getChainedIBS() Only for internal engineering use.
long	getPosition() Only for internal engineering use.
long[]	getRanges() Only for internal engineering use.
long	length() Only for internal engineering use.
int	read() Only for internal engineering use.
int	read(byte[] bytes, int position, int length) Only for internal engineering use.
InputByteStream	seek(long position) Only for internal engineering use.
InputByteStream	slice(long begin, long length) calls slice on underlying ChainedInputByteStream and returns it.

Methods inherited from class com.adobe.internal.io.stream.InputByteStreamImpl

bytesAvailable, eof, read, slice, toInputStream, toString, unget

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

RangeInputByteStream

public RangeInputByteStream(InputByteStream ibs,
                            long[] ranges)
                     throws IOException

Create a chainedIBS from the ranges of interest.

Parameters:

ibs -

ranges -

Throws:

IOException

Method Detail

close

public void close()
           throws IOException

Only for internal engineering use. This api can change without notice.

Specified by:

close in interface InputByteStream

Specified by:

close in class InputByteStreamImpl

Throws:

IOException

getPosition

public long getPosition()
                 throws IOException

Only for internal engineering use. This api can change without notice.

Specified by:

getPosition in interface InputByteStream

Specified by:

getPosition in class InputByteStreamImpl

Returns:

The current position.

Throws:

IOException

length

public long length()
            throws IOException

Only for internal engineering use. This api can change without notice.

Specified by:

length in interface InputByteStream

Specified by:

length in class InputByteStreamImpl

Returns:

Total number of bytes available in this InputByteStream.

Throws:

IOException

read

public int read()
         throws IOException

Only for internal engineering use. This api can change without notice.

Specified by:

read in interface InputByteStream

Specified by:

read in class InputByteStreamImpl

Returns:

The byte at the current position or -1 if at or beyond EOF.

Throws:

IOException

read

public int read(byte[] bytes,
                int position,
                int length)
         throws IOException

Only for internal engineering use. This api can change without notice.

Specified by:

read in interface InputByteStream

Specified by:

read in class InputByteStreamImpl

Parameters:

bytes - The destination array.

position - The offset in the byte array to put the first byte read.

length - The number of bytes to read.

Throws:

IOException

seek

public InputByteStream seek(long position)
                     throws IOException

Only for internal engineering use. This api can change without notice.

Specified by:

seek in interface InputByteStream

Specified by:

seek in class InputByteStreamImpl

Parameters:

position - Where to set the current position.

Returns:

This object.

Throws:

IOException

slice

public InputByteStream slice(long begin,
                             long length)
                      throws IOException

calls slice on underlying ChainedInputByteStream and returns it. Only for internal engineering use. This api can change without notice.

Specified by:

slice in interface InputByteStream

Specified by:

slice in class InputByteStreamImpl

Parameters:

begin - Offset within the current InputByteStream to start the slice.

length - The length of the slice.

Returns:

A slice of the original InputByteStream.

Throws:

IOException

getChainedIBS

public com.adobe.internal.io.stream.ChainedInputByteStream getChainedIBS()

Only for internal engineering use. This api can change without notice.

getRanges

public long[] getRanges()

Only for internal engineering use. This api can change without notice.