JHipster - The best way to breed a new app

Presentation of the JHipster generator.

Presented at Javaforum Stockholm 20160322. The original presentation was performed by Rikard Thulin (@Rikard_Thulin) and Peter Lindh (@peterlindh) but was this time presented by Rikard and Ola Petersson (@olbpetersson)

Transcript

1. JHipster the best way to breed a new webapp by Ola Petersson & Rikard Thulin
2. Rikard Thulin Jforum JUG leader, entrepreneur, with Java since 1.0 email: rikard.thulin at squeed.com twitter: @Rikard_Thulin Ola Petersson Full process full stack software engineer email: ola.petersson at squeed.com twitter: @olbpetersson We have an awesome culture and we can prove it! Plug
3. I have an idea
5. a few hours later the POC arrives
7. NFR WORLD DOMINATION
8. Then we need...
9. + 4h
10. + 4h
11. + 4h
12. + 4h
13. + 2d
14. + 1d
15. + 1d
16. + 4h
17. + 1d
18. + 1d
19. + 1d
20. + 11d Monitoring 1d Security 1d User Management 1d API doc 1d Internation- alization 1d Full text search 1d Minified Resources 4h Cache headers 4h Responsive UI 1d Browser sync 4h Social login 1d User management 1d
21. ∑ 160 hours
22. Add your favorite flavor of velocity
23. 63.2%
24. ∑ 261,12 hours
25. Hey, we forgot...
26. The business logic
27. + 8h
28. 6 weeks!!? “We are professionals” ...right
30. Another way?
31. JHipster to the rescue...
32. Not a library
33. Scaffolding
34. JHipster is a Yeoman generator used to create a Spring Boot + AngularJS project
35. What will JHipster solve for us?
36. Monitoring 1d Security 1d User Management 1d API doc 1d Internation- alization 1d Full text search 1d Minified Resources 4h Cache headers 4h Responsive UI 1d Browser sync 4h Social login 1d User management 1d
41. Business logic 8h
42. JHipster rationale to exist “We can guarantee you that having everything working together smoothly, with security, caching and monitoring, isn't easy…” -- Official JHipster Slides
43. JHipster rationale to exist “I [Matt Raible] did some quick calculations to see how many lines of code JHipster had produced. [...] I only had to write 1,152 lines of code. JHipster did the rest for me, generating 91.7% of the code” -- Matt Raible [The JHipster Mini-book]
44. Is JHipster hip enough? - self assessment The project is 2+ years old (2016/03): • 3,600 GitHub stars and 200+ contributors • 12,000 downloads / month • 10K app generations per month • Featured on Websites everywhere (Infoworld, SD Times, JavaWorld, Reddit...) • And it's growing rapidly
45. Project Scaffolding
47. Yeoman to the rescue
48. The Yeoman JHipster generator generator-jhipster
49. Prereq Warning: npm hell may will apply npm install -g yo npm install -g bower npm install -g grunt-cli npm install -g generator-jhipster
50. The Yeoman JHipster generator DEMO
51. A package manager for the web. Framework-, library-, asset-, and utility-manager for web projects Bower
52. Grunt gives you automation for repetitive tasks such as “live editing” of code, sass compiling, jshint checking.... Grunt
53. The fastest growing web framework for Single Page Applications (SPA) AngularJS
54. Spring Boot makes it easy to create stand-alone, production-grade Spring based Applications that you can "just run" make jar - not war Spring boot
55. Coding JPA entities
57. JHipster to the rescue
58. Scaffolding from database to AngularJS view • Database table • Liquibase change set • JPA Entity • Spring Data JPA Repository • Spring MVC REST Controller with CRUD operations • AngularJS router + controller + service + view • Integration tests + performance tests
59. • Must have tool if you work with RDBMS • “Version control” for your database refactorings ◦ Database refactorings are defined in changesets, typically XML • Easy to use Key take away: If you use a RDBMS you should must use a tool like Liquibase Liquibase
60. yo demo Creating entities and relations npm install -g jhipster-uml
61. Long round trips
63. to the rescue
64. Deploy process
66. JHipster to the rescue
67. We use a free Heroku account • Heroku toolbelt must be installed • One simple command to package your application in “production” mode Just as easy to deploy to Cloud Foundry and AWS Deploy to cloud
68. yo demo Deploy to cloud
69. Setup tests
71. Scaffolding to the rescue
72. JHipster generates an extensive set of tests for each generated application. • Test tooling setup • Karma JS Unit test • Gatling stress test • DISCLAIMER: You need to write your own tests to test your business logic It is a best practice to validate the generated code by running all tests Testing
73. And there is more... Websocket NoSQL Validation Pagination Email Social etcetera
74. SAY MICROSERVICES ONE MORE TIME I DARE YOU Samuel Pulp Fiction
75. JHipster 3.0 • Eureka • Elastic Search - Logstash - Kibana (ELK) • Hysterix Dashboard • Docker config generator • Open ID connect server
76. These slides http://widr.se/jhipster
77. Hands on> geek? https://github.com/squeed-com/jhipsterhol/wiki
78. This is the end Q & A
79. References 1. The JHipster Mini-book 2. http://deepu.js.org/jh-slides-v3/#/intro 3. http://www.playbuzz.com/zariaq10/multiple-intelligences-what-smart-are-you 4. Jhipster.github.io 5. The JHipster Mini-book 6. https://telematicssolutions.files.wordpress.com/2015/08/loneworker1.jpg