com.sun.faban.driver.util
Class PlotServer

java.lang.Object
  com.sun.faban.driver.util.PlotServer

public class PlotServer
extends Object

The PlotServer is the server side implementation to feed data to all StreamChart clients that try to connect to it.

Author:

Akara Sucharitakul

Constructor Summary

PlotServer(int numSeries, String target)
Constructs a PlotServer listening to a particular TCP port and having a buffer for sending certain number of values at a time.

Method Summary

int	numChannels() Obtains the number of channels currently writing to.
void	plot(double value) Sends a single y value to the graph to plot.
void	plot(double[] values) Sends a number of y values to the graph to plot.

Methods inherited from class java.lang.Object

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

Constructor Detail

PlotServer

public PlotServer(int numSeries,
                  String target)
           throws IOException

Constructs a PlotServer listening to a particular TCP port and having a buffer for sending certain number of values at a time.

Parameters:

numSeries - The number of data values to send and plot

target - The port number or file to write to

Throws:

IOException - Cannot listen to port

Method Detail

numChannels

public int numChannels()

Obtains the number of channels currently writing to.

Returns:

The number of open channels

plot

public void plot(double[] values)
          throws IOException

Sends a number of y values to the graph to plot.

Parameters:

values - The y values to plot

Throws:

IOException - if the data cannot be written

plot

public void plot(double value)
          throws IOException

Sends a single y value to the graph to plot.

Parameters:

value - The y value to plot

Throws:

IOException - if the data cannot be written