org.apache.jena.hadoop.rdf.io.input.util

Class BlockInputStream

java.lang.Object

java.io.InputStream

org.apache.jena.hadoop.rdf.io.input.util.TrackableInputStream

org.apache.jena.hadoop.rdf.io.input.util.TrackedInputStream

org.apache.jena.hadoop.rdf.io.input.util.BlockInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public final class BlockInputStream
extends TrackedInputStream

A block input stream which can is a wrapper around another input stream which restricts reading to a specific number of bytes and can report the number of bytes read

The class assumes that the underlying input stream has already been seeked to the appropriate start point

Constructor Summary

Constructors

Constructor and Description
BlockInputStream(InputStream input, long limit) Creates a new tracked input stream

Method Summary

Modifier and Type	Method and Description
int	available()
int	read()
int	read(byte[] b, int off, int len)
long	skip(long n)

Methods inherited from class org.apache.jena.hadoop.rdf.io.input.util.TrackedInputStream

close, getBytesRead, mark, markSupported, read, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

BlockInputStream

public BlockInputStream(InputStream input,
                        long limit)

Creates a new tracked input stream

Parameters:

input - Input stream to track

limit - Maximum number of bytes to read from the stream

Method Detail

read

public int read()
         throws IOException

Overrides:

read in class TrackedInputStream

Throws:

IOException

available

public int available()
              throws IOException

Overrides:

available in class TrackedInputStream

Throws:

IOException

read

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

Overrides:

read in class TrackedInputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class TrackedInputStream

Throws:

IOException