I like this pretty nice proposal. It helped me to understand what the task was about. :-)
On Mon, Mar 30, 2009 at 1:01 PM, Daniel Gong <[email protected]> wrote: > Hi all, > I'm a postgraduate student from Fudan University, Shanghai, China. > This is my first time joining GSoC and I was not quite clear that I > should exchange my ideas with possible mentors. I've submitted my proposal > today. It's lucky that I can still modify it. > Here is my proposal, any criticism and suggestions are welcome~ > > ===================================================== > > *Abstract:* > > The main idea to deal with the subject is to collect infomation from the > input first and then generate smallest JRE according to the infomation > collected and harmony classes dependences. > > *Detailed Description:* > > The implementation of the tool can be divided into 4 parts: > > 1. Infomation Collector. Automatic lexcial tool such as JLex may be used > to analysis the input code and collect infomation including which classes in > JRE does the project depend on. > 2. Data structure design. Both project-jre class dependence and jre inner > class dependence should be represented in an uniform way. > 3. Class Lister. An algorithm should be designed to compute with the > dependence and list out the classes needed in the smallest JRE. > 4. JRE Builder. Build a JRE according to the class list. > > *Initial* *Algorithm Design* > > Use a, b to represent two classes, and <a, b> to represent a relation > between a & b, that is, a depends on b, in other words, b is refered in > source code of a. > > 1. Given a project with its class set P, let set S = P and set M = empty. > > 2. For each class c in S, search for dependence <c, *>, and for each d > that <c, d> exists and d is not in M, put d in S. After searching for <c, > *>, put c in M and delete it from S. > 3. Loop step 2 until S is empty, return M - P. > > Here a project's class set includes its customized classes and classes in > other packages that the project may link to. > > *Possible problems to solve* > > To collect the infomation, just reading the "import" part of the code is not > a precise strategy. A lexicial scan of the code from begin to end is a must. > Automatic lexcial tools can be used to solve the problem. > > JRE is not just a simple collection of classes needed. Getting familiar with > the structure of Harmony JRE is a must. > > *Draft Timeline* > > - Week 1-2 Complete the design of data structure and the algorithm; > - Week 3-4 Implement the module of infomation collector; > - Week 5-6 Implement the algorithm to list out the classes; > - Week 7-8 Implement the JRE builder; > - Week 9 Debug the whole module and make necessary modifications > to successfully complete the subject. > > *Additional Information:* > > I've been learning and using Java since 3 years ago. Although my > experience of Harmony is not that vast, my knowledge in programming, > software architecture, compiler building and algorithm can help me to learn > fast and handle the problem. > > I'm 23 years old, living in Shanghai, China, attending Fudan University. > > ===================================================== > -- With best regards / с наилучшими пожеланиями, Alexei Fedotov / Алексей Федотов, http://www.telecom-express.ru/ http://people.apache.org/~aaf/
