com.ibm.cloud.objectstorage.services.s3.internal.crypto

Class AdjustedRangeInputStream

java.lang.Object

java.io.InputStream

com.ibm.cloud.objectstorage.internal.SdkInputStream

com.ibm.cloud.objectstorage.services.s3.internal.crypto.AdjustedRangeInputStream

All Implemented Interfaces:

MetricAware, Releasable, Closeable, AutoCloseable

public class AdjustedRangeInputStream
extends SdkInputStream

Reads only a specific range of bytes from the underlying input stream.

Constructor Summary

Constructors

Constructor and Description
AdjustedRangeInputStream(InputStream objectContents, long rangeBeginning, long rangeEnd) Creates a new DecryptedContentsInputStream object.

Method Summary

Modifier and Type	Method and Description
int	available()
void	close()
protected InputStream	getWrappedInputStream() Returns the underlying input stream, if any, from the subclass; or null if there is no underlying input stream.
int	read()
int	read(byte[] buffer, int offset, int length)

Methods inherited from class com.ibm.cloud.objectstorage.internal.SdkInputStream

abort, abortIfNeeded, isMetricActivated, release

Methods inherited from class java.io.InputStream

mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

AdjustedRangeInputStream

public AdjustedRangeInputStream(InputStream objectContents,
                                long rangeBeginning,
                                long rangeEnd)
                         throws IOException

Creates a new DecryptedContentsInputStream object.

Parameters:

objectContents - The input stream containing the object contents retrieved from S3

rangeBeginning - The position of the left-most byte desired by the user

rangeEnd - The position of the right-most byte desired by the user

Throws:

IOException - If there are errors skipping to the left-most byte desired by the user.

Method Detail

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] buffer,
                int offset,
                int length)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

available

public int available()
              throws IOException

Overrides:

available in class InputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class InputStream

Throws:

IOException

getWrappedInputStream

protected InputStream getWrappedInputStream()

Description copied from class: SdkInputStream

Returns the underlying input stream, if any, from the subclass; or null if there is no underlying input stream.

Specified by:

getWrappedInputStream in class SdkInputStream