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## com.trilead.ssh2
Class StreamGobbler

    java.lang.Object
      java.io.InputStream
          com.trilead.ssh2.StreamGobbler

All Implemented Interfaces:
  java.io.Closeable

    public class StreamGobbler

extends java.io.InputStream

A `StreamGobbler` is an InputStream that uses an internal worker thread to constantly consume input from another InputStream. It uses a buffer to store the consumed data. The buffer size is automatically adjusted, if needed.

This class is sometimes very convenient - if you wrap a session's STDOUT and STDERR InputStreams with instances of this class, then you don't have to bother about the shared window of STDOUT and STDERR in the low level SSH-2 protocol, since all arriving data will be immediatelly consumed by the worker threads. Also, as a side effect, the streams will be buffered (e.g., single byte read() operations are faster).

Other SSH for Java libraries include this functionality by default in their STDOUT and STDERR InputStream implementations, however, please be aware that this approach has also a downside:

If you do not call the StreamGobbler's `read()` method often enough and the peer is constantly sending huge amounts of data, then you will sooner or later encounter a low memory situation due to the aggregated data (well, it also depends on the Java heap size). Joe Average will like this class anyway - a paranoid programmer would never use such an approach.

The term "StreamGobbler" was taken from an article called "When Runtime.exec() won't", see http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html.

Version:
  $Id: StreamGobbler.java,v 1.1 2007/10/15 12:49:56 cplattne Exp $
Author:
  Christian Plattner, plattner@trilead.com

Constructor Summary
`StreamGobbler(java.io.InputStream is)`

Method Summary
`int` | `available()`
`void` | `close()`
`int` | `read()`
`int` | `read(byte[] b)`
`int` | `read(byte[] b, int off, int len)`

Methods inherited from class java.io.InputStream
`mark, markSupported, reset, skip`

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### StreamGobbler

    public StreamGobbler(java.io.InputStream is)

Method Detail

### read

    public int read()
             throws java.io.IOException

  Specified by:
    `read` in class `java.io.InputStream`
  Throws:
    `java.io.IOException`

### available

    public int available()
                  throws java.io.IOException

  Overrides:
    `available` in class `java.io.InputStream`
  Throws:
    `java.io.IOException`

### read

    public int read(byte[] b)
             throws java.io.IOException

  Overrides:
    `read` in class `java.io.InputStream`
  Throws:
    `java.io.IOException`

### close

    public void close()
               throws java.io.IOException

  Specified by:
    `close` in interface `java.io.Closeable`
  Overrides:
    `close` in class `java.io.InputStream`
  Throws:
    `java.io.IOException`

### read

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

  Overrides:
    `read` in class `java.io.InputStream`
  Throws:
    `java.io.IOException`

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