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BRUE Behavioral Reverse-engineering in UML as Eclipse plug-in

Presentation providing an overview of BRUE, covering core functionalities and use cases implemented as Eclipse plug-ins. Details include the Collector plug-in responsibilities, instrumentation process, trace data collection control, and UML2 model generation. Use of Eclipse GMF and GEF to draw diagrams and model interactions, with deployment information and planned test coverage. Project planning for the next presentation in September.

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BRUE Behavioral Reverse-engineering in UML as Eclipse plug-in

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  1. BRUEBehavioral Reverse-engineering in UML as Eclipse plug-in Presentation 2 Sri Raguraman CIS 895 Kansas State University

  2. Overview of Presentation

  3. Overall flow

  4. Critical use-cases

  5. Core functionalities Each Core functionality is implemented as an Eclipse plug-in. Interface between plug-ins is through extension-points.

  6. Plug-ins and their dependencies

  7. Use-Case 1

  8. Plug-in CollectorResponsibilities • Defining BRUE Launch configuration • Can specify which packages/classes/methods to instrument • Instrumenting application • Uses Eclipse Probekit to instrument class files • Launching application • Uses Eclipse launch configuration delegates to launch Java applications.

  9. Plug-in CollectorPackage Diagram

  10. Plug-in CollectorLaunch configuration

  11. Plug-in CollectorInteraction between launcher and instrumenter

  12. Plug-in CollectorInstrumentation • Instruments class files • Uses Eclipse Probekit for instrumentation. • Probekits • Snippet of code to be run at method entry/exit events. • Records Method Entry and Method Exit events • Method exit event includes actual return type, and any exception thrown.

  13. Plug-in CollectorLaunching Java application

  14. Use-case 2 • Need to control when to start or stop trace data collection. • Need a way for BRUE plug-in to “talk” to the launched application.

  15. Plug-in CollectorControlling when to collect trace data • A lightweight Agent class is attached to application • On a thread, from within the launched application, listen for requests from BRUE plug-in. • Maintain flags for enabling or disabling trace data collection.

  16. Controlling trace data collection

  17. Trace XML Structure • A “Scenario” contains a trace of method entry and method exit events. • The events references an id that describes the method details (method name, signature, return type, its class name, package name).

  18. Trace XML Structure

  19. Generating UML2 Model files • Parse trace xml file. • Extract packages and classes from trace xml file • Build UML2 based package model • Build UML2 based class model • Build UML2 based interaction model

  20. Building UML2 Models • Use of Builder pattern

  21. Use-case 3

  22. Package diagram and class diagram • Eclipse GMF used to draw packages and classes • Model – • UML2 model generated from analyzer • Graphical definition file • Contains properties for graphical notations (rectangle, polyline) • Graphical mapping definition • Maps UML2 model elements with graphical notations. • Eclipse GMF builds a editor based on the mapping.

  23. Viewing Interaction Diagrams • Use of Eclipse GEF • Sequence diagrams is not freeform and should conform to UML2 specifications. • GEF applications follow MVC paradigm • Model • EditPart (Controller) • Figure (View)

  24. Sequence diagram Models

  25. Sequence DiagramsEditparts • One Edit part per Model

  26. Sequence DiagramFigures

  27. Drawing a sequence diagramSequenceDiagramEditor

  28. Deployment • Deployed as Eclipse plug-in • Dependencies • Java 5 or later • Eclipse 3.2 (or later) with these plug-ins • GMF 2.0 • GEF 3.2 • UML2 2.0

  29. Artifacts • Test Plan • Use of JUnit • Planned to use Eclipse TPTP for measuring test coverage • Formal specification • Positioning of sequence diagram model elements • Project Plan • Planning for Presentation 3 in September third week.

  30. Demo

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