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

Class InputSubstream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

com.ibm.cloud.objectstorage.internal.SdkFilterInputStream

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

All Implemented Interfaces:

MetricAware, Releasable, Closeable, AutoCloseable

public final class InputSubstream
extends SdkFilterInputStream

Filtered input stream implementation that exposes a range of an input stream as a new input stream.

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor and Description
InputSubstream(InputStream in, long offset, long length, boolean closeSourceStream) Constructs a new InputSubstream so that when callers start reading from this stream they'll start at the specified offset in the real stream and after they've read the specified length, this stream will look empty.

Method Summary

Modifier and Type	Method and Description
int	available()
void	close()
void	mark(int readlimit)
int	read()
int	read(byte[] b, int off, int len)
void	reset()

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

abort, abortIfNeeded, getDelegateStream, isAborted, isMetricActivated, markSupported, release, skip

Methods inherited from class java.io.FilterInputStream

read

Methods inherited from class java.lang.Object

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

Constructor Detail

InputSubstream

public InputSubstream(InputStream in,
                      long offset,
                      long length,
                      boolean closeSourceStream)

Constructs a new InputSubstream so that when callers start reading from this stream they'll start at the specified offset in the real stream and after they've read the specified length, this stream will look empty.

Parameters:

in - The input stream to wrap.

offset - The offset, in bytes, into the specified input stream at which to start reading data.

length - The length, in bytes, of the specified input stream to return through this stream.

closeSourceStream - True if the wrapped InputStream should be closed when this InputSubstream is closed.

Method Detail

read

public int read()
         throws IOException

Overrides:

read in class SdkFilterInputStream

Throws:

IOException

read

public int read(byte[] b,
                int off,
                int len)
         throws IOException

Overrides:

read in class SdkFilterInputStream

Throws:

IOException

mark

public void mark(int readlimit)

Overrides:

mark in class SdkFilterInputStream

reset

public void reset()
           throws IOException

Overrides:

reset in class SdkFilterInputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class SdkFilterInputStream

Throws:

IOException

available

public int available()
              throws IOException

Overrides:

available in class SdkFilterInputStream

Throws:

IOException