Prism - PowerPoint PPT Presentation

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Prism

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A Prism for research in software modularity through aspect mining Prism pattern recognition for aspect mining Charles Zhang and Hans-Arno Jacobsen – PowerPoint PPT presentation

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Title: Prism


1
Prism
A Prism for research in software modularity
through aspect mining
pattern recognition for aspect mining
Charles Zhang and Hans-Arno Jacobsen Middleware
Systems Research Group University of Toronto
2
What is Prism?
  • Goal A platform discovers aspects in very large
    systems composed in a variety of languages.
    Consists of both backend engine and user
    interface.
  • Core A framework supports arbitrary language
    patterns and different pattern matching
    algorithms.
  • Language pattern
  • Lexical pattern regular expressions
  • Usage of types where is my typeA?
  • Execution flow where are my actions?

3
Prism Architecture A set of extension points
  • Prism fingerprint A pattern definition specified
    by the user.
  • Prism footprint A encapsulation of the location
    information of a particular fingerprint.
  • Prism task A customizable assembly of Prism
    fingerprints which represents a more complex
    pattern.
  • Prism algorithm An algorithm responsible for
    matching a particular pattern and generating the
    associated footprint.

Prism fingerprint
Prism footprint
Prism Engine
Prism Task 1
Prism Algorithm
Prism fingerprint
Prism footprint
Prism Task 2
4
Prism Eclipse Plug-in
Prism footprints
Prism tasks
Fingerprints
Projects
Java Editor
5
Configuring a Prism Fingerprint
  • A Prism fingerprint consists of any combinations
    of lexical patterns and type patterns.
  • Examples of type pattern
  • Referencing all types in a particular package.
  • All types in package org.omg.CORBA
  • Referencing all methods of any class type
  • All call sites for all methods of class
    org.omg.CORBA.Any
  • AspectJ joinpoint definitions.
  • Examples of lexical pattern
  • Regular expressions

6
Prism Fingerprint Configuration
Fingerprint name
Type pattern listing
Type browser
Regular expression listing
7
Prism footprint
  • Results of matching fingerprints in the source
    code.
  • Example A fingerprint defined as any method
    defined in the class java.util.Hashtable, of
    which the name starts by get has the
    following footprints.
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