Package lejos.robotics.filter

Class PublishFilter

java.lang.Object

lejos.robotics.filter.AbstractFilter

lejos.robotics.filter.PublishFilter

All Implemented Interfaces:

SampleProvider

public class PublishFilter
extends AbstractFilter

Field Summary

Fields

Modifier and Type	Field	Description
protected java.net.DatagramSocket	datagramSocket
protected float	frequency
protected java.lang.String	host
protected float[]	latest
protected lejos.robotics.filter.PublishFilter.Listener	listener
protected java.lang.String	name
protected static int	PUBLISH_PORT
protected lejos.robotics.filter.PublishFilter.Publisher	publisher
protected byte[]	publishMessage
protected java.net.DatagramPacket	publishPacket
protected java.net.ServerSocket	ss
protected java.util.ArrayList<java.net.Socket>	subscribers
protected static int	UDP_PERIOD

Fields inherited from class lejos.robotics.filter.AbstractFilter

sampleSize, source

Constructor Summary

Constructors

Constructor	Description
PublishFilter(SampleProvider source, java.lang.String name, float frequency)

Method Summary

Modifier and Type	Method	Description
void	fetchSample(float[] sample, int offset)	Fetches a sample from a sensor or filter.

Methods inherited from class lejos.robotics.filter.AbstractFilter

sampleSize

Methods inherited from class java.lang.Object

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

Field Detail

PUBLISH_PORT

protected static final int PUBLISH_PORT

See Also:

Constant Field Values

UDP_PERIOD

protected static final int UDP_PERIOD

See Also:

Constant Field Values

name

protected java.lang.String name

host

protected java.lang.String host

datagramSocket

protected java.net.DatagramSocket datagramSocket

publisher

protected lejos.robotics.filter.PublishFilter.Publisher publisher

listener

protected lejos.robotics.filter.PublishFilter.Listener listener

latest

protected float[] latest

frequency

protected float frequency

publishMessage

protected byte[] publishMessage

publishPacket

protected java.net.DatagramPacket publishPacket

ss

protected java.net.ServerSocket ss

subscribers

protected java.util.ArrayList<java.net.Socket> subscribers

Constructor Detail

PublishFilter

public PublishFilter(SampleProvider source,
                     java.lang.String name,
                     float frequency)
              throws java.io.IOException

Throws:

java.io.IOException

Method Detail

fetchSample

public void fetchSample(float[] sample,
                        int offset)

Description copied from interface: SampleProvider

Fetches a sample from a sensor or filter.

Specified by:

fetchSample in interface SampleProvider

Overrides:

fetchSample in class AbstractFilter

Parameters:

sample - The array to store the sample in.

offset - The elements of the sample are stored in the array starting at the offset position.