ds.funnel.traffic.component.packetgenerator

Class ECGPacketGenerator

java.lang.Object

ds.funnel.traffic.component.packetgenerator.ECGPacketGenerator

All Implemented Interfaces:

PacketGenerator

public class ECGPacketGenerator
extends java.lang.Object
implements PacketGenerator

A packet generator which generates ECG readings based upon data read from a file. The file provided should contain ECG readings as follows: Each line of the file contains a set of readings for two leads. The first value in each line specifies the number of readings per lead. The readings for the two leads follow (doubles, a total of 2*the size specified). Any further values on the line will be stripped and ignored.

Author:

Kira Lindburg

Constructor Summary

Constructors

Constructor and Description
ECGPacketGenerator(java.lang.String filename) Creates a new ECGPacketGenerator which will use data from the provided file to generate packets.

Method Summary

Modifier and Type	Method and Description
byte[]	generatePacket(int packetSize) Generates a packet containing ECG data from the file specified upon construction.
static java.util.List<java.lang.String>	preloadFiles(java.lang.String dirName) Load data from all files in a given directory

Methods inherited from class java.lang.Object

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

Constructor Detail

ECGPacketGenerator

public ECGPacketGenerator(java.lang.String filename)

Creates a new ECGPacketGenerator which will use data from the provided file to generate packets.

Method Detail

preloadFiles

public static java.util.List<java.lang.String> preloadFiles(java.lang.String dirName)

Load data from all files in a given directory

Parameters:

dirName - - The directory to load files from

Returns:

A list containing paths of loaded files

generatePacket

public byte[] generatePacket(int packetSize)

Generates a packet containing ECG data from the file specified upon construction. Each packet will contain the readings from one line of the file. When the last set of data is reached, the ECG packet generator will loop back to the beginning of the readings.

Specified by:

generatePacket in interface PacketGenerator

Parameters:

packetSize - the size of desired packet, in bytes

Returns:

a byte array containing the bytes of the generated packet data