This document discusses model-driven extraction of the navigational concern from legacy web applications. It presents a model-driven reverse engineering framework that uses metamodels and transformations to extract a conceptual navigational model from a legacy web application. The framework is demonstrated on a case study of extracting the navigational flows from a Struts-based web application. The extracted model is evaluated and limitations are discussed along with plans for future work to address the limitations.
Advanced use cases and approaches with stratos paa s
MigraRIA project overview (2012 mdwe )
1. Model Driven Extraction of the Navigational Concern
of Legacy Web Applications
Roberto Rodríguez Echeverría, José María
Conejero, Pedro J. Clemente, Víctor M. Pavón, Fernando Sánchez-
Figueroa
http://quercusseg.unex.es
@quercusseg
2. • Context
• Motivation
• Modernization process framework
• Domain
• MD Reverse Engineering of a LWA
– Extraction
– Representation
• Case study
• Evaluation
• Conclusions
• Future work
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@quercusseg
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4. MIGRARIA: 10000 feet view
LWA Conceptual RIA Conceptual
Model Model
M2M
model
code
T2M M2T
LWA RIA
Modernization process framework
- Model-driven approach
- Metamodels (DSL)
- Transformations
- Architecture Driven Modernization
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5. MIGRARIA
• Enterprise systems behind Web 1.0 layers
• Alternative interfaces are trendy
– Web 2.0 - RIA (web or desktop)
– Mobile (web or native)
LiveNation Interactive eBay Desktop
eBay app for iPad
Seat Map Adobe AIR
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23. Manual vs Generated
• Size of the case study
Concept Amount
JSP files (including error) 78
JSP LOCs 6727
Java files 140
Java LOCs 10282
Config LOCs 496
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24. Manual vs Generated
• Limitations
– Link request with n parameters
– Only html:link tags, no HTML <a>
– Duplicated forwards
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25. Main contributions
• MIGRARIA project
– MD LWA2RIA modernization framework
• Work herein: MD Rev. Eng.
– Extraction of a conceptual navigational model
from a LWA
– Metamodels: intermediate and target
– Transformations
– Evaluation
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@quercusseg
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26. MD Reverse Engineering
• Eliminating current limitations
– Refine and complete queries
– Refine and complete Struts Metamodel
• Define specific metrics for evaluation
• We need
– More case studies
– More MVC frameworks
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27. Questions?
Thanks for your attention
rre@unex.es
@rrecheve
Roberto Rodríguez Echeverría, José María Conejero, Pedro J. Clemente, Víctor M.
Pavón, Fernando Sánchez Figueroa
http://quercusseg.unex.es
@quercusseg