org.apache.commons.io.input
Class ProxyInputStream

java.lang.Object
  |
  +--java.io.InputStream
        |
        +--java.io.FilterInputStream
              |
              +--org.apache.commons.io.input.ProxyInputStream
Direct Known Subclasses:
CountingInputStream, SwappedDataInputStream

public abstract class ProxyInputStream
extends FilterInputStream

A Proxy stream which acts as expected, that is it passes the method calls on to the proxied stream and doesn't change which methods are being called.

It is an alternative base class to FilterInputStream to increase reusability, because FilterInputStream changes the methods being called, such as read(byte[]) to read(byte[], int, int).

Version:
$Id: ProxyInputStream.java 471628 2006-11-06 04:06:45Z bayard $
Author:
Stephen Colebourne

Fields inherited from class java.io.FilterInputStream
in
 
Fields inherited from class java.io.InputStream
SKIP_BUFFER_SIZE, skipBuffer
 
Constructor Summary
ProxyInputStream(InputStream proxy)
          Constructs a new ProxyInputStream.
 
Method Summary
 int available()
           
 void close()
           
 void mark(int idx)
           
 boolean markSupported()
           
 int read()
           
 int read(byte[] bts)
           
 int read(byte[] bts, int st, int end)
           
 void reset()
           
 long skip(long ln)
           
 
Methods inherited from class java.lang.Object
, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait
 

Constructor Detail

ProxyInputStream

public ProxyInputStream(InputStream proxy)
Constructs a new ProxyInputStream.
Parameters:
proxy - the InputStream to delegate to
Method Detail

read

public int read()
         throws IOException
Overrides:
read in class FilterInputStream
See Also:
InputStream.read()

read

public int read(byte[] bts)
         throws IOException
Overrides:
read in class FilterInputStream
See Also:
InputStream.read(byte[])

read

public int read(byte[] bts,
                int st,
                int end)
         throws IOException
Overrides:
read in class FilterInputStream
See Also:
InputStream.read(byte[], int, int)

skip

public long skip(long ln)
          throws IOException
Overrides:
skip in class FilterInputStream
See Also:
InputStream.skip(long)

available

public int available()
              throws IOException
Overrides:
available in class FilterInputStream
See Also:
InputStream.available()

close

public void close()
           throws IOException
Overrides:
close in class FilterInputStream
See Also:
InputStream.close()

mark

public void mark(int idx)
Overrides:
mark in class FilterInputStream
See Also:
InputStream.mark(int)

reset

public void reset()
           throws IOException
Overrides:
reset in class FilterInputStream
See Also:
InputStream.reset()

markSupported

public boolean markSupported()
Overrides:
markSupported in class FilterInputStream
See Also:
InputStream.markSupported()