twerkin' on j-rails

Austin on Rails talk about tools and patterns for use with jruby/rails/java

Transcript

1. twerkin' apps with j-rails building stuff with jruby, rails, and java Wednesday, April 24, 13
2. twerkin’ (n) 1. to do your sh*t like a mutha fu*kin professional Today at my J-O-B I was twerkin’ it like a pro...all day, ery day source: “Lenny” on urbandictionary.com Wednesday, April 24, 13
3. Michael May @ehm_may Wednesday, April 24, 13
4. Now in Beta! Wednesday, April 24, 13
5. Wednesday, April 24, 13
6. Wednesday, April 24, 13
7. social profiles // local-template Wednesday, April 24, 13
8. 1) Use big font 2) Use color 3) Use jokes/memes so people stay happy Wednesday, April 24, 13
9. Wednesday, April 24, 13
10. mmay ~/jruby-talk $ ls - jruby - tool chain for mvn/ruby/java - jruby/rails dev patterns - social connection service Wednesday, April 24, 13
11. jruby Wednesday, April 24, 13
12. jruby NATIVE THREADS Wednesday, April 24, 13
13. Native threads are scheduled by the OS Wednesday, April 24, 13
14. Green threads are scheduled by the Ruby VM Wednesday, April 24, 13
15. Why do I care? Wednesday, April 24, 13
16. simultaneous thread execution Wednesday, April 24, 13
17. Wednesday, April 24, 13
18. C extensions Wednesday, April 24, 13
19. C extensions Wednesday, April 24, 13
20. Nokogiri died Wednesday, April 24, 13
21. Java extensions Wednesday, April 24, 13
22. Use native java xml parsers e.g. StAX Wednesday, April 24, 13
23. Apache libraries!! Google Collections Log4J Jetty ANTLR - lexer/parser Wednesday, April 24, 13
24. jruby startup time = no bueno Wednesday, April 24, 13
25. mmay ~/dev/.../rails [master] $ rails s Booted rails in 1.108 Included bundled gems in 6.132 Loading java environment from /../../pom.xml Built effective-pom.xml in 0.0s Built build-classpath.txt in 0.0s Added java paths to $CLASSPATH in 0.056 Parsed effective-pom.xml in 0.863s JRuby Spring Services / is_rake=false Starting Spring with full context Spring started in 14.254 Loaded site settings in 0.208s Wednesday, April 24, 13
26. Wednesday, April 24, 13
27. Wednesday, April 24, 13
28. Wednesday, April 24, 13
29. use spork and guard to help mitigate startup time https://github.com/sporkrb/spork https://github.com/guard/guard Wednesday, April 24, 13
30. anti-jruby bias Wednesday, April 24, 13
31. Wednesday, April 24, 13
32. MRI gets the love MRI == Matz Matz == Ruby God Wednesday, April 24, 13
33. rubyspec.org Wednesday, April 24, 13
34. mmay ~/jruby-talk $ ls - jruby - tool chain for mvn/ruby/java - jruby/rails dev patterns - social connection service Wednesday, April 24, 13
35. Toolin’ Wednesday, April 24, 13
36. Wednesday, April 24, 13
37. maven mvn Wednesday, April 24, 13
38. maven : java :: bundler : ruby Wednesday, April 24, 13
39. “targets” compile test deploy Wednesday, April 24, 13
40. $ mvn clean compile Wednesday, April 24, 13
41. pom.xml <dependencies> <dependency> <groupId>org.jruby</groupId> <artifactId>jruby</artifactId> <version>1.7.3</version> </dependency> </dependencies> Wednesday, April 24, 13
42. XML non-believer? ruby DSL for pom.xml ruby-maven github.com/mkristian/ruby-maven Wednesday, April 24, 13
43. pom-loader Wednesday, April 24, 13
44. pom-loader loads your java dependencies into your jruby env Wednesday, April 24, 13
45. classpath Wednesday, April 24, 13
46. classpath no more Wednesday, April 24, 13
47. require ‘pom-loader’ pom_dir = File.join Rails.root, “..” PomLoader.load {pom_dir: pom_dir} Wednesday, April 24, 13
48. def day date = Date.parse(self.arrival_date) com.homeaway.reviews.model.Day.new(date) end Wednesday, April 24, 13
49. NameError: missing class or uppercase package name (`com.homeaway.reviews.mod el.Day') get_proxy_or_package_under_package at org/jruby/javasupport/JavaUtilities.java:54 method_missing at file:.../ jruby-1.7.3/lib/jruby.jar!/jruby/java/ java_package_module_template.rb:14 load at org/jruby/ RubyKernel.java:1046 Wednesday, April 24, 13
50. mmay ~/jruby-talk $ ls - jruby - tool chain for mvn/ruby/java - jruby/rails dev patterns - social connection service Wednesday, April 24, 13
51. Patterns Wednesday, April 24, 13
52. Namespace java classes Wednesday, April 24, 13
53. module Java module ReviewsApi java_import com.homeaway.reviews.model.Day .... java_import com.homeaway.reviews.model.Review end end Wednesday, April 24, 13
54. def day date = Date.parse(self.arrival_date) com.homeaway.reviews.model.Day.new(date) end Wednesday, April 24, 13
55. def day date = Date.parse(self.arrival_date) Java::ReviewsApi::Day.new(date) end Wednesday, April 24, 13
56. WARNING!!! Wednesday, April 24, 13
57. You can clobber your ruby namespace Wednesday, April 24, 13
58. module Foo java_import java.util.Date ... def bar date = Date.parse(date_string) Date.new(date.year, date.month, date.day) end end Wednesday, April 24, 13
59. ActiveModel is great Wednesday, April 24, 13
60. Rails ActiveRecord is awesome Wednesday, April 24, 13
61. Model.create { name: “John”, coffee: “yes pls” } model.validate model.save model.save! Model.where(name: “John”) Wednesday, April 24, 13
62. Java::ReviewsClient::Reviews ClientImpl.write_review(uuid, unit_id, site, review) Wednesday, April 24, 13
63. ReviewsClientImpl = Java::ReviewsClient::ReviewClientImpl review = Java::ReviewsApi::Review.new.tap do |r| r.setBody(params[:review][:body]) r.setRating(params[:review][:rating].to_i) r.setReviewer(params[:review][:reviewer]) end ReviewsClientImpl.write_review(property_id, unit_id, site, review) Wednesday, April 24, 13
64. meh Wednesday, April 24, 13
65. Review.create(review: params[:review]) Wednesday, April 24, 13
66. class Review include ActiveModel::Conversion include ActiveModel::Validations include ActiveModel::MassAssignmentSecurity extend ActiveModel::Naming # implement ActiveRecord-like interfaces # save, save!, create, create!, find, etc. end Wednesday, April 24, 13
67. def save if self.valid? Reviews.client(@site).write_review(@system_id, @property_id, @unit_id, self.to_java) else false end end Wednesday, April 24, 13
68. def to_java Java::ReviewsApi::Review.new.tap do |r| r.setArrivalDate(@day) r.setBody(@body) r.setCountry(@country) r.setLanguage(@language) r.setHeadline(@headline) r.setRating(@rating.to_i) r.setReviewer(build_reviewer) end end Wednesday, April 24, 13
69. Testin’ Wednesday, April 24, 13
70. You can test jruby/java code with MRI Wednesday, April 24, 13
71. running specs with jruby sucks Wednesday, April 24, 13
72. Review = Java::ReviewsApi::Review Review = double('Review') unless defined? Review Review.should_receive(:new).and_return(Review) Review.should_receive(:setBody) Review.should_receive(:setCountry) ... client.write_review(review) Wednesday, April 24, 13
73. be aware of java Wednesday, April 24, 13
74. Wednesday, April 24, 13
75. mmay ~/jruby-talk $ ls - jruby - tool chain for mvn/ruby/java - jruby/rails dev patterns - social connection service Wednesday, April 24, 13
76. Building a connection search service Wednesday, April 24, 13
77. lolwut? Wednesday, April 24, 13
78. Properties Wednesday, April 24, 13
79. People Wednesday, April 24, 13
80. Wednesday, April 24, 13
81. { id: 1234, from_uuid: xxx-yyy-zzz, connector_uuid: zzz-yyy-xxx, to_id: listing-xyz-123, connection_type: property, site: vrbo, connection_data: { rating: 5} } Wednesday, April 24, 13
82. solr Wednesday, April 24, 13
83. > 6 Million first-order connections Wednesday, April 24, 13
84. > 100 Million second-order connections Wednesday, April 24, 13
85. > JS POSTS to an endpoint > query solr > build up connection > send response > backbone throws the response into a template Wednesday, April 24, 13
86. Wednesday, April 24, 13
87. Wednesday, April 24, 13
88. jruby is your friend embrace it, don’t hate it Wednesday, April 24, 13
89. To the bar! @ehm_may @CDNSumo Wednesday, April 24, 13