CSCI

CSCI.4220/CSCI.6964 Network Programming

Fall, 2002

Programming Assignment 4.

This assignment is to be done either individually or in pairs. Do not show your code to any other group and do not look at any other group's code. Do not put your code in a public directory or otherwise make it public. However, you may get all the help you need from the TAs or the instructor. You are encouraged to use the WebCT Discussions page to post problems so that other students can also see the answers.

Objective:

The objectives of this assignment are:

To learn how to write server-side Java applications for the web.
To understand what a servlet is and how it works.
To implement a simple servlet-based web application.

In this assignment you will have to perform the following tasks:

Design a simple web interface to the calendar application of PA2. The interface should consist of an index file with an appropriate title, appropriate instructions, a list showing today's events, forms for querying the calendar and adding a new event. The forms that show the results of your query should allow you to select a specific event, delete it, or update it. Use text fields to enter your queries and use the POST method to submit your forms. Write the HTML code to implement this interface and test it using a browser. This HTML code will be used later as a model for the HTML code that your servlet will produce later.
Implement a servlet that processes and responds to all the HTTP calendar requests. Your servlet will use the calendar protocol developed in PA2 to communicate with the calendar server. Your servlet should use the doGet and doPost methods.
Install and configure a servlet engine. The engine comes with the Java Servlet Development Kit (JSDK), which is available from the Sun Microsystems Web site at http://java.sun.com/products/servlet/archive.html. Use the JSDK 2.1. For instructions on how to install this engine, you can refer to pp 294-295 in your textook, Java Network Programming and Distributed Computing.

You can use your PA2 solution for this assignement. A working solution of PA2 is available in this URL:

http://www.cs.rpi.edu/courses/fall02/netprog/PA4/given.jar

All exceptions must be properly handled.

Grading:

Grading will be split in the following way:

60% correctness (Does it do what it's supposed to?)
20% error handling (Can it easily be crashed?)
20% documentation (Is it easy to read and understand the code?)

Submission:

The due date for this project is October 8th, 2002, 11:55pm EST. You should use the assignments drop-off box located at the course's WebCT page. Upload a JAR file containing all the relevant documented Java files, along with a README file describing the project and its usage.

Late submissions:

10% penalty for a one-day late submission.
25% penalty for up to a three-day late submission.
Submissions more than 3 days late will not be accepted.