Developing faster than ever (Liferay DEVCON 2017)
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The document discusses various techniques for improving development efficiency when working with Liferay, including: - Generating code using templates, archetypes, and tools like Damascus to avoid manually writing recurring code - Leveraging features of the Service Builder to generate layers of services code - Using tools like JRebel to enable instant deployment and synchronization between code changes and the running application - Configuring the development environment and application server to reduce build and deployment times - Testing static resources directly from the file system to bypass full deployment cycles The document encourages sharing tips and tricks for faster development on blogs and forums to advance the community's knowledge.
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Developing faster than ever (Liferay DEVCON 2017)
- 1. Sébastien Le Marchand | @slemarchand Developing faster than ever No more wasting time Sébastien Le Marchand @slemarchand
- 2. Sébastien Le Marchand | @slemarchand § About efficiency § Hands-free coding § Deploying without waiting § What’s next? Agenda
- 3. Sébastien Le Marchand | @slemarchand § 10 years of experience on Liferay (since v4.3) § Including 6 years as employee of a « Gold Service Partner » company § Now Freelancer Sébastien Le Marchand @slemarchand linkedin.com/in/slemarchand Paris, France
- 5. Sébastien Le Marchand | @slemarchand « Efficiency is the (often measurable) ability to avoid wasting materials, energy, efforts, money, and time in doing something or in producing a desired result. In a more general sense, it is the ability to do things well, successfully, and without waste. » [wikipedia.org]
- 7. Sébastien Le Marchand | @slemarchand § Writing & debugging recurring code § Waiting during compilation, packaging or deployment § Repeating again and again the same manual tasks from GUI What is waste in development activities?
- 9. Sébastien Le Marchand | @slemarchand § Avoid time spent to manually write this code § Reduce bugs… and so reduce time to fix them ! § Improve code homogeneity… and so maintenability ! Why generate « recurring » code?
- 10. Sébastien Le Marchand | @slemarchand § Blade templates (26) § Maven archetypes (48) § Liferay Studio Templates (25) Code generation 101: create project from templates $ blade create –t mvc-portlet myproject-web $ mvn archetype:generate -Dfilter=liferay
- 11. Sébastien Le Marchand | @slemarchand § Define services through service.xml file § Persistance services layer: fully generated § Business services layer : very basic… you need to code the missing parts! Service Builder: generate services layers
- 12. Sébastien Le Marchand | @slemarchand resource-actions/default.xml *LocalServiceImpl::* portlet-model-hints.xml *.jsp *Portlet *ActionCommand *PermissionChecker *Indexer . . . . . . *RenderCommand CRUD UI Service Builder generated code
- 13. Sébastien Le Marchand | @slemarchand § Some basic CRUD mechanics (ID creation for example) § Permissions § Indexing § Asset features handling § Web layer (the portlet!) § … Service Builder missing stuff for common use-cases
- 14. Sébastien Le Marchand | @slemarchand A New Hope Damascus CLI base.json models descriptor « Ready-To-Go » OSGi modules myproject-api myproject-service myproject-web
- 15. Sébastien Le Marchand | @slemarchand https://github.com/yasuflatland-lf/damascus by Yasuyuki Takeo (here at DEVCON 2017)
- 16. Sébastien Le Marchand | @slemarchand § « Events Manager » application § 1 model: « Public Event » Let’s go with a concrete example
- 17. Sébastien Le Marchand | @slemarchand § Initialize project (from a Liferay Workspace) § Update model in events-manager/base.json file § Generate modules with Damascus Just do it! $ cd events-manager $ damascus -create $ damascus -init EventsManager -p com.slemarchand.events
- 18. Sébastien Le Marchand | @slemarchand { "projectName": "EventsManager", "packageName" : "com.slemarchand.events", "liferayVersion": "70", "applications": [ { "model" : "PublicEvent", "title" : "Public Event", "web" : "true", "asset": { "assetTitleFieldName": "eventTitle", "assetSummaryFieldName": "eventSummary", "categories": "true", "discussion": "true", "ratings": "true", "tags": "true", "relatedAssets": "true", "fullContentFieldName": "eventFullContent", "workflow": "true", "generateActivity": "true", "trash":"true" }, "fieldsName" : "Events", "fields": [
- 19. Sébastien Le Marchand | @slemarchand "generateActivity": "true", "trash":"true" }, "fields": [ { "type": "com.liferay.damascus.cli.json.fields.Long", "primary":true, "name": "eventId", "title": "ID", "showFieldInView": "false", "required": "true" }, { "type": "com.liferay.damascus.cli.json.fields.Varchar", "name": "eventName", "title": "Name", "length": "80", "showFieldInView": "true", "required": "true" }, ] } ] } …
- 20. Sébastien Le Marchand | @slemarchand Ready to deploy! $ blade deploy
- 27. Sébastien Le Marchand | @slemarchand § « Fire & Forget »: after manual code modification, you can’t safely launch generation again § If you want, you can just keep small parts of generated code What are usages for Damascus? « Service » components « Web » components Service Builder generated code
- 28. Sébastien Le Marchand | @slemarchand § Give some feedback § Create new issues § Comment existing issues § Contribute § See README.md file in repo We need you! https://github.com/yasuflatland-lf/damascus
- 29. Sébastien Le Marchand | @slemarchand Tribute to XML Portlet Factory Jack A. Rider Juan Gonzalez § Pioneer of CRUD full-generation for Liferay § Available for all 6.x versions of Liferay § 6.0 § 6.1 § 6.2 § Get it § http://www.xmlportletfactory.org § https://github.com/xmlportletfactory/xmlportletfactory
- 31. Sébastien Le Marchand | @slemarchand § (Re-)Starting app server (maybe 1 or 2 times by day), § Building project, § Deploying to local server, § First request (empty cache, JSP compilation, etc) Developing implies so often waiting
- 33. Sébastien Le Marchand | @slemarchand § Use Tomcat on your local machine § Uninstall permanently the unused modules § Remove or alter some *.lpkg files, from ${liferay.home}/osgi/marketplace § Don’t forget to clean work & osgi/state directories Reducing app server start time
- 34. Sébastien Le Marchand | @slemarchand « Jukebox » sample application(2): § Build (blade) in 19,78 s without Gradle deamon § Build (blade) in 14,78 s with Gradle deamon § Bundle installation in 3,2 s Deployement duration(1) (1): MacBook Air (13-inch, Mid 2013) - 1,7 GHz Intel Core i7 - 8 Go 1600 MHz DDR3 (2): https://github.com/epgarcia/jukebox-portlet/tree/LSNA.2016.Upgrade.to.7
- 35. Sébastien Le Marchand | @slemarchand § JRebel synchronize IDE workspace and the application deployed on the local server. § When developer make some code changes, JRebel instantly update bytecode (and resources) on local server, without full deployment. § Adding / removing / changing Classes, Methods, Constructors, Fields, Annotations and Static field values JRebel
- 36. Sébastien Le Marchand | @slemarchand § 3 steps § Set JRebel Java Agent via $JAVA_OPTS § Add org.zeroturnaround:gradle-jrebel-plugin plugin to your Gradle project § Customize rebel.xml § All details : § https://web.liferay.com/fr/web/jardineworks/blog/-/blogs/liferay-7-jrebel How-to configure JRebel for Liferay 7
- 37. Sébastien Le Marchand | @slemarchand § JRebel is a commercial product (there is a free-trial period) § Not everyone can or want to buy a licence § So alternatives are welcome in some contexts! Instant deployment without JRebel ?
- 38. Sébastien Le Marchand | @slemarchand § For themes, standard liferay-theme-tasks do the job with watch task § https://dev.liferay.com/develop/reference/- /knowledge_base/7-0/theme-gulp-tasks Instant theme deployment $ gulp watch
- 39. Sébastien Le Marchand | @slemarchand § Install § Run from the module directory § Each change in module sources is automatically synchronized using gogo shell Instant modules deployment: liferay-osgi-watch $ sudo npm install -g liferay-osgi-watch $ lwatch
- 40. Sébastien Le Marchand | @slemarchand « The fastest way to deploys is just… to not deploy » [some hurry developer]
- 41. Sébastien Le Marchand | @slemarchand § Serving resources directly from source code § Provide capability to define rules to route some browser requests to particular local files § With « Map Local » proper configuration, static resources (CSS, JS) are loaded in browser from IDE workspace local files JS & CSS: « Map Local » feature of Charles Proxy charlesproxy.com
- 42. Sébastien Le Marchand | @slemarchand § You can test your local static resources (including JS) § With no deployment delay § On any environment… including PRODUCTION 🎉 § Privately, without impacting other users Beyond the local server
- 44. Sébastien Le Marchand | @slemarchand § Each of you knows at least one uncommon trick to develop faster § All together, you are an huge developement tips database ! YOU are the next step!
- 45. Sébastien Le Marchand | @slemarchand § Publish § Spread the word Share your tips & tricks Liferay Blogs
- 46. Sébastien Le Marchand | @slemarchand Thanks! Some questions? Want to share some tips? http://lemarchand.co/devfaster @slemarchand linkedin.com/in/slemarchand Sébastien Le Marchand