Status Report for 10/17/2007 -- 10/31/2007

Progress

Prototype architecture for new CIMAClient project

1. Main Frame

2. Implementation of some parts

On server side, main steps for (1), (2) and (3) shown in above figure:

(1) Start the server;

(2) Start handling CIMA http/REST requests

• interact with a CIMA service
• get data from a handle (registration)
• Status information about gateway

(3) Get stream data in "myHandler" method in src/edu/indiana/extreme/www/cima/channel/sink/Channel_sinkImpl.java

On client side, main steps for (4) shown in above figure:

(1) Create a new instance of XMLHttpRequest;

(2) If successful, attach a function to the onreadystatchange event handler, that function will be executed EVERY TIME the server pings the client with an update. The function will be executed every time the readystatechange event is triggered;

In this function,

(a) Check the status properly to make sure that the response was successfully returned from the server;

(b) Extract data from parcel(an XML file);

(c) Generate content;

(d) Create the text for SensorName, TimeStamp and DoubleData to go inside the paragraph;(e) Join these nodes together, and insert the markup just created;

(3) Send the request;

Reference

• Bulletproof Ajax, Keith, Jeremy
• Ajax in practice, Crane, Dave
• JSP : the complete reference, Hanna, Phil
• JavaScript bible, Goodman, Danny
• Ajax for web application developers, Hadlock, Kris
• Ajax design patterns, Mahemoff, Michael
• Ajax : creating Web pages with asynchronous JavaScript and XML, Woychowsky, Edmond
• Ajax bible, Holzner, Steven