gov.nasa.pds.label.io
Class LengthLimitedInputStream

java.lang.Object
  extended by java.io.InputStream
      extended by java.io.FilterInputStream
          extended by gov.nasa.pds.label.io.LengthLimitedInputStream
All Implemented Interfaces:
Closeable

public class LengthLimitedInputStream
extends FilterInputStream

Implements a stream that wraps another input stream, but limits the portion read.


Field Summary
 
Fields inherited from class java.io.FilterInputStream
in
 
Constructor Summary
LengthLimitedInputStream(InputStream in, long offset, long size)
          Creates a new instance wrapping the given input stream.
 
Method Summary
 int available()
           
 int read()
           
 int read(byte[] b, int off, int len)
           
 long skip(long n)
           
 
Methods inherited from class java.io.FilterInputStream
close, mark, markSupported, read, reset
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

LengthLimitedInputStream

public LengthLimitedInputStream(InputStream in,
                                long offset,
                                long size)
                         throws IOException
Creates a new instance wrapping the given input stream.

Parameters:
in - the underlying input stream
offset - the offset from the start of the stream to begin reading
size - the size of the portion of the data to read
Throws:
IOException - if there is an error accessing the underlying input stream
Method Detail

available

public int available()
              throws IOException
Overrides:
available in class FilterInputStream
Throws:
IOException

read

public int read()
         throws IOException
Overrides:
read in class FilterInputStream
Throws:
IOException

read

public int read(byte[] b,
                int off,
                int len)
         throws IOException
Overrides:
read in class FilterInputStream
Throws:
IOException

skip

public long skip(long n)
          throws IOException
Overrides:
skip in class FilterInputStream
Throws:
IOException


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