Introduction to Cyberinfrastructure and Grid Computing
Spring, 2007

CS 696 Assignment #2 (Due dates below)
(This page last updated on 10-Feb07)
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Note: for all homeworks, turn in both hardcopy and electronic versions. include the following for each problem:
  1. short summary of solution/approach
  2. printout showing server/client outputs.
  3. copy of code

Problem 1: Working with Python Client Server Tutorial (due: 16-Feb-07)
  • Note: Python 2.x contains xmlrpclib, so you do not need to install
  • Download PythonWare archive from course website:
    • progxmlrpc_examples.zip   [48k]
    • the file contains several examples for each chapter of the book: "Programming Web Services with XML-RPC," by Laurent & Dumbill (ISBN: 0-596-00119-3).
  • You will work with chapt6 example
      • see lecture 7 notes.
      • Copy *.txt file to *.py
  • Fix bugs and get client & server examples working
  • Run client from
    • the python interpretor
    • a client.py script

Problem 2:    Working with PyXML (Due: 22-Feb-07)
  • Write a python script to create a SimpleMath  XML document
  • Create a MathRequest and MathResponse XML documents
  • struct should follow logical pattern:
 <simpleMathRequest xmlns:....>
<marysAdd ....>
.....
</marysAdd....>
...
 </marysMathRequest>
  • Must include elements for methods for the following 4 operations:
    • add, sub, div, mult
  • Must support datatypes:
    • integer, floating point

Problem 3:    XML-RPC SimpleMath Web Service (Due: 22-Feb-07)
  • You will write the SimpleMath Web Service and client
  • the service will support the operations
    • add, sub, div, mult
  • Must support datatypes:
    • integer, floating point
    • Args of function should reflect operator
  • write a method in client to discover and list what operations are available from server
  • Both client and server should accept command line ags
    • to connect to a specific server, eg.  -h http://acel.sdsu.edu:8888, or default to some other server
    • to request an operation, eg.  -o simpleMathAdd  arg1   arg2 ...
    • return error messages appropriately
  • run server and client from both interactive session and from scripts
  • Access server from telnet:
    • hint: use features of the xmlrpc library calls to capture the request and response streams generated when running your scripts;
    • you will see the XML for the client request within the server session



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