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![Type Refinement
• By adopting the data type system proposed by OCCIware
metamodel
– defining regular expressions,
– and using the EMF validator to check the type constraints that
are attached to the attributes
• If the type of an attribute in the documentation is string
and the description explains that this is an email address,
we apply the email validation constraint :
– STRINGTYPE + this regular expression:
^[A-Z0-9._%+-]+@[A-Z0-9.-]+.[A-Z]{2,6}$
• No more Imprecise Types
Stéphanie Challita 1517 – 20 April, 2018, Orlando, Florida, USA](https://image.slidesharecdn.com/challita-ic2e2018-180416213926/75/A-Precise-Model-for-Google-Cloud-Platform-IC2E-2018-15-2048.jpg)
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A Precise Model for Google Cloud Platform (IC2E'2018)
- 1. A Precise Modelfor Google Cloud Platform Stéphanie Challita | Faiez Zalila | Christophe Gourdin | Philippe Merle Inria Lille – Nord Europe & University of Lille 6th IEEE International Conference on Cloud Engineering (IC2E 2018) 17 – 20 April, 2018, Orlando, Florida, USA
- 2. Google Cloud Platform StéphanieChallita 217 – 20 April, 2018, Orlando, Florida, USA
- 3. Google Cloud Platform Cloud developer/designer Cloud provider Anagreement with the developer on exactly how the system will operate conformsto GCP documentation GCP documentation is written in natural language human errors and/or semantic confusions Stéphanie Challita 317 – 20 April, 2018, Orlando, Florida, USA
- 4. Agenda • Drawbacks &Motivations • Contribution • Perspectives Stéphanie Challita 417 – 20 April, 2018, Orlando, Florida, USA
- 5. Drawbacks & Motivations StéphanieChallita 517 – 20 April, 2018, Orlando, Florida, USA
- 6. List of Drawbacks StéphanieChallita 6 • Informal Heterogeneous Documentation • Imprecise Types • Implicit Attribute Metadata • Hidden Links • Redundancy • Lack of Visual Support 17 – 20 April, 2018, Orlando, Florida, USA
- 7. Informal Heterogeneous Documentation StéphanieChallita 7 Vs. Available at https://cloud.google.com/compute/docs/reference/latest/networks Available at https://cloud.google.com/dataproc/docs/reference/rest/v1/projects.regions.clusters 17 – 20 April, 2018, Orlando, Florida, USA
- 8. Imprecise Types Stéphanie Challita817 – 20 April, 2018, Orlando, Florida, USA
- 9. Lack of VisualSupport • Only descriptive information in GCP documentation – A huge time to be properly understood and analyzed • Visual diagrams easily highlight in short but catchy view the concepts of the API – Help to avoid wastage of time – Logical sequence and comparative analysis can be undertaken Stéphanie Challita 917 – 20 April, 2018, Orlando, Florida, USA
- 10. Contribution Stéphanie Challita 1017– 20 April, 2018, Orlando, Florida, USA
- 11. Global Vision Stéphanie Challita1117 – 20 April, 2018, Orlando, Florida, USA • Precise model for GCP • Work of reverse-engineering, HTML Model • GCP model refinement
- 12. GCP Snapshot Stéphanie Challita12 A Snapshot GCP HTML pages GCP documentation • GCP engineers could update/correct GCP documentation • Continuously following up with GCP documentation is costly • Snapshot of GCP API 17 – 20 April, 2018, Orlando, Florida, USA
- 13. GCP Crawler &GCP Model Stéphanie Challita 13 GCP Crawler GCP Model A B Snapshot GCP HTML pages GCP documentation C • GCP Crawler to extract all GCP resources, their attributes and actions • GCP Model for a better description of the GCP resources and for reasoning over them No more Informal Heterogeneous Documentation 17 – 20 April, 2018, Orlando, Florida, USA
- 14. Model Transformations Stéphanie Challita14 GCP Crawler Implicit Attribute Metadata Detection Link Identification Redundancy Removal GCP Model A B Snapshot GCP HTML pages GCP documentation C Model Transformations Type Refinement Model Visualization 17 – 20 April, 2018, Orlando, Florida, USA
- 15. Type Refinement • Byadopting the data type system proposed by OCCIware metamodel – defining regular expressions, – and using the EMF validator to check the type constraints that are attached to the attributes • If the type of an attribute in the documentation is string and the description explains that this is an email address, we apply the email validation constraint : – STRINGTYPE + this regular expression: ^[A-Z0-9._%+-]+@[A-Z0-9.-]+.[A-Z]{2,6}$ • No more Imprecise Types Stéphanie Challita 1517 – 20 April, 2018, Orlando, Florida, USA
- 16. Model Visualization No moreLack of Visual Support Stéphanie Challita 16 For an easier understanding and analysis of the API, because the insights become obvious 17 – 20 April, 2018, Orlando, Florida, USA
- 17. Analysis • “GCP documentationis developed by two separate clusters of development teams” Stéphanie Challita 1717 – 20 April, 2018, Orlando, Florida, USA Runtime Config Cloud User Account • “GCP documentation is redundant and not comprehensive” & GCP Model
- 18. Perspectives Stéphanie Challita 1817– 20 April, 2018, Orlando, Florida, USA
- 19. In progress… • Validationwith Google • GCP Studio, a dedicated model-driven environment for GCP • Generation of GCP artifacts such as JSON files and CURL scripts • Model-driven management of GCP systems Stéphanie Challita 1917 – 20 April, 2018, Orlando, Florida, USA
- 20. stephanie.challita@inria.fr www.occiware.org https://github.com/occiware/GCP-Model Thank you! 17 –20 April, 2018, Orlando, Florida, USA