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CORBA Distributed To-Do List
Readings:
|
Background
Build a distributed to-do list using Java and CORBA. Various clients should be able to connect to a server managing various to-do list objects to query list items, add list items, delete list items, and clear to-do lists. The server should also have management functionality that allows member registration. Each to-do list item has a description, and a start time and an end time in which users must complete their items. Users should be able to add any number of items to their to-do lists.
Tasks
For this programming exercise, we will be using JavaSoft's Java IDL, which
is a CORBA ORB written completely in Java. The advantages of Java's IDL are that it is free and very
portable. Its disadvantage is that its functionality is minimal. However, it
supports static method invocations, and it has a naming service, which is all
we need for this programming exercise. The Java IDL compiler (idlj
)
is packaged with the latest
version of Java
(1.4.2 as of the time of this writing). You may find documentation
for the idlj
compiler here.
Your to-do list should implement the following functionality. Each piece of functionality outlined below must be accessible from the client using the CORBA naming service. Each user's to-do list must be a separate object that is managed using CORBA.
Interface
Your client must be accessible via a simple console-based menu.
Implementation
To complete this assignment, you will need to manage multiple CORBA objects using the CORBA naming service. For each user that successfully registers, you must create a new to-do list and add it to the CORBA naming service. To that end, you will need to write a to-do list creator that creates to-do lists and adds them to the CORBA naming system. The to-do list creator must be also be accessible using the CORBA naming service. Therefore, if there are n to-do list system users, CORBA must manage n+1 CORBA objects — one to-do list object for each user plus the creator object. You will need to perform the following tasks to complete this assignment.
- Write a to-do list creator object that creates to-do lists upon a successful user registration and adds the to-do list objects to the CORBA naming service.
- Casting the to-do list object to a generic Java object and generating the IDL description of the interfaces.
- Write a simple CORBA client that exercises the main methods of the to-do list and to-do list creator CORBA object.
- Deploying and running the system. You should run a test involving two or more agenda objects, keeping track of the agendas of different users. The client should use the CORBA naming service to find the appropriate agenda object.
Submission
Coding Style and Documentation
You are expected to design classes in an object-oriented manner using good programming practices.
Your code must be written using Java coding conventions . Your code must be well documented and contain a README file with instructions on compiling and running each program.
The files you should turn in are listed below.
- Submit all files necessary to run your to-do list.
- A README file.
To help yourself do your best on this assessment, consult this general list of grading guidelines.
- Exercise05.tar.bz2 (89.3 KB)
- 描述: 我的解答
- 下载次数: 28
评论
Total Score: 100/100
Good work.
难点在于学习IDL等系列技术。
这些脚本极大地提高了我的测试速度。
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