Package net.targetr.wtm3.io

Class MonitoredOutputStream

java.lang.Object

java.io.OutputStream

net.targetr.wtm3.io.MonitoredOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class MonitoredOutputStream
extends OutputStream

Keeps track of how many bytes are written to an output stream.

Used for statistical purposes.

Author:

Dr Michael Gardiner

Constructor Summary

Constructors

Constructor	Description
MonitoredOutputStream(OutputStream out, AtomicLong counter)	Decorates a stream with the ability to monitor how much data is transferred.

Method Summary

Modifier and Type	Method	Description
boolean	canRelayError()	For detecting if the response has started.
void	close()
void	flush()
void	setInterception(OutputStream interception)	Adds an output stream to receive data written to this output stream.
String	toString()
void	write(byte[] data, int off, int len)
void	write(int b)

Methods inherited from class java.io.OutputStream

nullOutputStream, write

Methods inherited from class java.lang.Object

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

Constructor Details

MonitoredOutputStream

public MonitoredOutputStream(OutputStream out,
 AtomicLong counter)

Decorates a stream with the ability to monitor how much data is transferred.

Parameters:

out - The output stream to monitor.

counter - The counter that should be incremented.

Method Details

write

public void write(int b)
           throws IOException

Specified by:

write in class OutputStream

Throws:

IOException

write

public void write(byte[] data,
 int off,
 int len)
           throws IOException

Overrides:

write in class OutputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class OutputStream

Throws:

IOException

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Overrides:

flush in class OutputStream

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object

canRelayError

public boolean canRelayError()

For detecting if the response has started. If a response has started we can not write an error response.

Returns:

true if an error can be sent on the input stream.

setInterception

public void setInterception(OutputStream interception)

Adds an output stream to receive data written to this output stream.

Parameters:

interception - where to send intercepted data.