Feelin' Groovy: A Groovy Developer in the Java World
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The document is a presentation by Ken Kousen discussing the benefits of using Groovy, Grails, and Gradle, highlighting their ease of use and community support. It addresses common objections to Groovy, including performance and IDE support, while emphasizing that the perception of these technologies is more of a challenge than their actual functionality. Kousen encourages audience members to promote Groovy and its ecosystem, reinforcing that these are mature and successful technologies.
Feelin' Groovy: A Groovy Developer in the Java World
- 1. Feelin' Groovy A Groovy Developer in the Java World
- 2. Contact Info Ken Kousen Kousen IT, Inc. ken.kousen@kousenit.com http://www.kousenit.com http://kousenit.wordpress.com (blog) @kenkousen Groovy Podcast: http://nofluffjuststuff.com/groovypodcast O'Reilly videos: http://search.oreilly.com/?q=kousen&x=0&y=0
- 3. A note about the US Elections...
- 4. A note about the US Elections... I'm sorry
- 5. A note about the US Elections... Anybody hiring?
- 12. Pierre-Simon Laplace 1749 - 1827
- 14. Patent Trolls
- 18. What I use to sell Groovy to Java devs: - Groovy JDK Why Use Groovy?
- 22. (Thanks to Soren Glasius)
- 24. Even better, move to Geb See gr8conf_geb.groovy … (also build.gradle and GebConfig.groovy)
- 25. What I use to sell Groovy to Java devs: - Groovy JDK - Native syntax for collections Why Use Groovy?
- 27. What I use to sell Groovy to Java devs: - Groovy JDK - Native syntax for collections - POGOs Why Use Groovy?
- 29. What I use to sell Groovy to Java devs: - Groovy JDK - Native syntax for collections - POGOs - AST transformations Why Use Groovy?
- 31. What I use to sell Groovy to Java devs: - Groovy JDK - Native syntax for collections - POGOs - AST transformations - Safe navigation operator Why Use Groovy?
- 33. What I use to sell Groovy to Java devs: - Groovy JDK - Native syntax for collections - POGOs - AST transformations - Safe navigation operator - Slurpers and Builders (XML and JSON) Why Use Groovy?
- 36. What I use to sell Groovy to Java devs: - Groovy JDK - Native syntax for collections - POGOs - AST transformations - Safe navigation operator - Slurpers and Builders (XML and JSON) - Metaprogramming Why Use Groovy?
- 37. Remember the Date calculation? What about Java 8? java.time.LocalDate doesn't have the same minus method Easy enough to fix with Groovy metaprogramming
- 39. Source Code All these examples hosted at: https://github.com/kousen/keynote
- 40. How popular is Groovy?
- 42. TIOBE Data December, 2016 (http://www.tiobe.com/tiobe-index/) 1 Java 17.856% 19 Groovy 1.786% 32 Scala 0.689% 50 Clojure 0.183% (Note: Kotlin in "next 50")
- 43. StackOverflow Developer Survey Most Popular Technologies - Used Java 36.3% Groovy 0.34% Kotlin 0.12% Scala, Clojure not listed
- 45. Why Use Grails? Grails 3
- 46. Why Use Grails? Grails 3 - Uses Gradle
- 47. Why Use Grails? Grails 3 - Uses Gradle - Cool profiles: REST, Angular, …
- 48. Why Use Grails? Grails 3 - Uses Gradle - Cool profiles: REST, Angular, … - One word: RxGORM - Part of GORM 6 (!) in Grails 3.2
- 49. Why Use Gradle? Definitive build tool in the open source world
- 50. Why Use Gradle? Definitive build tool in the open source world Rapidly growing adoption in industry
- 51. Why Use Gradle? Definitive build tool in the open source world Rapidly growing adoption in industry Lots of people seriously loathe Maven
- 53. Perception End of Pivotal support means end of Groovy and Grails
- 54. Reality Six Pivotal employees affected Three Groovy Three Grails
- 55. Reality Six Pivotal employees affected Three Groovy Three Grails All were successfully employed soon afterwards
- 56. Reality Gradle, Inc increased hiring
- 57. Reality Groovy moved to Apache Apache Groovy, top level project, Nov 2015
- 59. Reality Grails moved to OCI Does more to support Grails than Pivotal ever did
- 60. One other unfortunate side effect…
- 62. Reality Inside Groovy community: Short term uncertainty, but we're okay
- 63. How do we fight the perception problem?
- 64. How do we fight the perception problem? Groovy Point to Apache Project Downloads have steadily increased
- 66. How do we fight the perception problem? What about Grails? OCI blog
- 68. How do we fight the perception problem? What about Grails? OCI blog Grails Quickcasts
- 70. How do we fight the perception problem? What about Grails? OCI blog Grails Quickcasts Grails Slack channel
- 72. Perception "Our company decided to use Spring Boot instead of Grails"
- 73. Reality Everything in Spring Boot is in Grails
- 74. Reality Everything in Spring Boot is in Grails This includes the Spring Boot actuator → profiling and administration
- 75. Reality Everything in Spring Boot is in Grails This includes the Spring Boot actuator → profiling and administration Grails adds convenience, capabilities, and customization to Spring Boot
- 76. Reality Spring Boot is Grails Lite
- 77. Maybe Grails needs rebranding... Grails Boot
- 78. Das Boot
- 79. Or maybe even... Holy Grails S
- 80. Objections Common objections to Groovy-related projects
- 82. Response @CompileStatic Works on classes and methods
- 83. What about the elephant in the room...
- 85. Now we know why that Gradlephant looks so grumpy…
- 87. IDE Support IDE support is the real issue Static typing makes IntelliJ IDEA work better
- 88. Who wins when Gradle supports Kotlin? Clear winners: - JetBrains - Kotlin developers
- 89. Who loses when Gradle supports Kotlin? Groovy, because fewer developers come into the field Internally, we're fine Externally, we have a perception problem "Gradle adopted Kotlin because of problems with Groovy"
- 90. What about Gradle, Inc? This is a big gamble for them - Kotlin is still very new
- 91. What about Gradle, Inc? This is a big gamble for them - Kotlin is still very new - What about all those existing build files that use Groovy?
- 92. What about Gradle, Inc? This is a big gamble for them - Kotlin is still very new - What about all those existing build files that use Groovy? - Groovy is great at DSL's
- 93. What about Gradle, Inc? This is a big gamble for them - Kotlin is still very new - What about all those existing build files that use Groovy? - Groovy is great at DSL's - Still need Eclipse support (JetBrains says they'll do it, but whoa)
- 94. What about Gradle, Inc? This is a big gamble for them - Kotlin is still very new - What about all those existing build files that use Groovy? - Groovy is great at DSL's - Still need Eclipse support (JetBrains) Time will tell whether or not this was a good idea
- 97. Groovy's Biggest Strength The Community
- 99. The Groovy Community In Groovy-related projects Experienced devs are friendly and helpful
- 100. The Groovy Community This flows from the top I could add a dozen more easily …
- 101. The Groovy Community Often your greatest strength is also your biggest weakness
- 102. The Groovy Community Often your greatest strength is also your biggest weakness Maybe our leaders are TOO humble
- 103. The Groovy Community That's where we can help →
- 104. The Groovy Community That's where we can help → Tell other devs about your Groovy experiences
- 105. Bottom Line Groovy, Grails, Gradle, Ratpack, Griffon, Spock, Geb, …
- 106. Bottom Line Groovy, Grails, Gradle, Ratpack, Griffon, Spock, Geb, … All healthy, powerful, successful, mature technologies
- 107. Groovy, Grails, Gradle, Ratpack, Griffon, Spock, Geb, … All healthy, powerful, successful, mature technologies Our problems are perception, not reality Bottom Line
- 108. Bottom Line Groovy, Grails, Gradle, Ratpack, Griffon, Spock, Geb, … All healthy, powerful, successful, mature technologies Our problems are perception, not reality So go tell everybody, and become your own …
- 109. Groovy Evangelist
- 110. Thanks! Thank you for coming and Enjoy the rest of Gr8conf!