BEAR.Sunday (2018)

BEAR.Sunday is a resource orientated framework with a REST centered architecture, implementing Dependency Injection and Aspect Orientated Programming' at its core. #phperKaigi

Transcript

1. A resource orientated framework using the DI /AOP/REST Triangle
3. BEAR.Sunday is an application framework. But it offers no libraries. (We have good stuff)
4. ͦͷ୅ΘΓʹ̏ͭͷΦϒδΣΫτϑϨʔϜϫʔΫ DI AOP REST
 Instead, it offers three object frameworks.
5. What is a framework ?
6. ΤϯυϢʔβίʔυʹର͢ΔҰ࿈ͷઃܭ੍໿ ”imposes a set of design constraints on end-user code.”
7. Dependency Injection
8. ఆٛ DI͸ૄ݁߹ͷίʔσΟϯάΛՄೳʹ͢Διϑ τ΢ΤΞσβΠϯݪଇͱύλʔϯͷηοτ
 “Dependency Injection is a set of software design principles and patterns that enable you to develop loosely coupled code.”
9. ݪଇ ࣮૷Ͱ͸ͳ͘ɺ
 ΠϯλʔϑΣΠεʹରͯ͠ϓϩάϥϜ͢Δ
 Kent Beckand, Ward Cunningham 1987 Gang of Four 1994 “Program to an interface, not an implementation.”
11. GET SHIT DONE ! .. OK ? maintenance ? upgrade ?
13. Ϧείϑͷஔ׵ݪଇ Liskov substitution principle
14. Decorator Pattern UPS
15. Composite Pattern
16. Null Object Pattern
17. Adapter Pattern
19. DIP: ґଘؔ܎ٯసͷݪଇ • ίʔυ͸ಉ౳Ҏ্ͷϨϕϧͷந৅ʹґଘ͢Δ • ԼҐϨϕϧͷৄࡉʹґଘ͠ͳ͍ • Code should depend on things that are at the same or higher level of abstraction • High level policy should not depend on low level details Dependency inversion principle
20. “ґଘੑٯసݪଇ͸ΦϒδΣΫτࢦ޲ٕज़ͷརӹͷࠜװΛͳ͢΋ͷɻ
 ࠶ར༻ΛՄೳʹ͢ΔϑϨʔϜϫʔΫͷ։ൃʹ͸ͦͷݪଇద༻͕ඞਢ” Robert Martin (a.k.a. Uncle Bob) “The principle of dependency inversion is at the root of many of the benefits claimed for object- oriented technology. Its proper application is necessary for the creation of reusable frameworks”
23. ந৅ʹґଘ্ͨ͠Ґίʔυ ᶃΠϯλʔϑΣΠεͰड͚औΓ ᶄϓϩύςΟʹ୅ೖ ᶅಡΈऔΓઐ༻ Higher-level code depends on abstraction passed through interface set to the property read-only
24. ந৅ʹ۩৅Λଋറ bind abstraction to concretion
25. ΦϒδΣΫτάϥϑੜ੒ building object graph
26. Billing
 Service Processor depends API Client Db Logger String lib Cal ? ? ΦϒδΣΫτάϥϑ object graph
27. Anti Pattern
 Dependency Lookup
28. Anti Pattern “MODE” ͍ͭ͘΋ͷύε खଓ͖Λίʔυ code “procedures” multiple execution path
29. ੜ੒ͱར༻͕෼཭ͨ͠DIύλʔϯ Compile Runtime ߏ଄Λίʔυ/ γϯάϧύε DI pattern code “structure” / single execution path
30. 
 Ͳ͜ͰΦϒδΣΫτάϥϑΛੜ੒͢Δ͔ʁ Where should we compose object graphs?
31. DI good practice
 ίʔυ͸ՄೳͳݶΓΠϯδΣΫλʔΛ௚઀ѻΘͳ͍ɻ
 ͦͷ୅ΘΓɺΞϓϦέʔγϣϯͷΤϯτϦʔϙΠϯτͰ̍ͭͷ ϧʔτΦϒδΣΫτΛੜ੒ͯ͠ΞϓϦέʔγϣϯΛىಈ͢Δ “Your code should deal directly with the Injector as little as possible. 
 Instead, you want to bootstrap your application by injecting one root object.”
32. Application = One Root Object
33. Application class
34. Application Script
35. Root Object
36. ͦΕͧΕͷґଘ͸อ࣋ͯ͠Δ͔อ࣋͞Ε͍ͯΔ͔ Dependencies have other dependencies Each object either contains or belongs to.
37. Live demo
39. print_o($obj);
40. ڊେɻ͔̍ͭ͠͠ͷม਺ͱͯ͠อଘՄೳɻ Huge, but can be stored one single value $app ϦΫΤετΛ௒͑ͯDI͕࠶ར༻Ͱ͖Δ Injection is reused beyond requests.
41. ϥϯλΠϜίϯύΠϧ΋ඞཁ • Ͳͷϖʔδ͔·ͩ෼͔Βͳ͍ • PDOΦϒδΣΫτ΍Ϋϩʔδϟ͸γϦΞϥΠζͰ ͖ͳ͍ Still, We need runtime compile No sure which page will be load Not everything can be serialized
42. Dependency Injection Compiler Compile
43. Instance script
44. • ֦ுੑ • ฒߦ։ൃ • ϝϯςφϯε • ςελϏϦςΟ • ΦϒδΣΫτͱར༻ͷੜ੒ͷ෼཭ • ΦϒδΣΫτσϦόϦʔ DIͷར఺ Extensibility Maintainability Parallel development Testability Clear separation of object instantiation and object usage Object delivery DI benefit
45. 1st framework: DI Framework • DSLͱΞϊςʔγϣϯΛ࢖ͬͨDIϑϨʔϜϫʔΫ • ૄ݁߹ • ίϯύΠϧͱϥϯλΠϜͷ۠ผ • ΞϓϦέʔγϣϯ͸୯ҰͷΦϒδΣΫτ • CodegenͰߴ଎ loosely coupled compile time and runtime application root object DI framework with DSL w/ annotation fast
46. “Ray”
47. Aspect Oriented Programming
48. What is AOP? Cache Log Auth ԣஅతؔ৺ࣄΛ෼཭Մೳʹ͢Δ͜ͱʹΑΓ
 ϞδϡϥϦςΟʔΛ૿Ճͤ͞Δ͜ͱΛ໨తͱͨ͠
 ϓϩάϥϛϯάύϥμΠϜ A programming paradigm that aims to increase modularity by allowing the separation of cross-cutting concerns
49. ॲཧ $a = microtime(true) microtime(true) - $a logic
50. ॲཧ BEGIN COMMIT
51. ॲཧ try catch
52. ॲཧ cache check save cache
53. ॲཧ cache check save cache ॲཧ ॲཧ
54. ຊ࣭తؔ৺ ԣஅతؔ৺
55. core concern cross cutting concern
56. Domain Logic Application Logic
57. Aspect Pattern before after around
58. Rock Concert Example
59. Gregor Kiczales
63. ϝιου࣮ߦ Caller Method method invocation
64. Πϯλʔηϓτ Caller Method Interceptor intercepting method
65. ෳ਺ͷΠϯλʔηϓτ C I I I M multiple interception
66. Hit Caller Method Cache Caller Method Cache Miss Ωϟογϡ͕͋Ε͹ϝιου͸ίʔϧ͞Εͳ͍ If the cache is warm the method is never called.
67. MethodInterceptor
68. Original method or next interceptor Cache Hit
69. Bind The Interceptor with Matcher
70. API Client
71. API Log Client Valid Auth
72. API Log !7BMJE BENJO %&-&5& Client Valid Auth
73. MVC, Is 3 enough ?
74. ՄมϨΠϠϦϯά Method Cache Form Auth Validation laying by context
75. PHPͰͷAOP࣮૷ํ๏ •Proxy (1.x) •Codegen (2.x) How to implement AOP in PHP
76. ܧঝΫϥεΛಈతʹੜ੒ͨ͠ܕ҆શͳΠϯλʔηϓτ Under the hood: Method interception sub class is created n order enable this interception and keep type safety.
77. 2nd framework: Aspect Oriented Framework • AOPΞϥΠΞϯε • ίϯςΩετʹΑΔϨΠϠϦϯά • ܕ҆શ • CodegenͰߴ଎ AOP Alliance Laying by context Type safety Fast
78. Representational State Transfer
79. ϩΠɾϑΟʔϧσΟϯά
83. )551
84. $POTPMF
85. #&"34VOEBZ
86. 1)1
87. 1)1 $POTPMF )551 #&"3
88. Resource-Method-Representation
92. @Embed
93. HAL: Hypertext Application Language content-type: application/hal+json
94. Resource Graph User Profile @Embed Job Best Friend Office School
95. Inject Resource Parameter
96. Method base cache update
97. 304 Not Modified
98. Content-Negotiation
99. OPTION method
100. JsonSchema Validation
102. Hypermedia
103. Payment hyperlink Hypermedia API Order
104. The key of success of web •URI •Unified Interface •Hyperlink
105. API APIۦಈ։ൃ DB Mobil e Web API Cloud Moc k URI API • API is hub • API is core value API driven development
107. 3rd framework: REST Framework • RESTfulͳϦιʔείϯςφ • HTTPඪ४ • ࠶ར༻ੑ • ڧྗͳΩϟογϡ RESTful container HTTP standard Reusability Cache-friendly
108. Performance • annotation ? dependency injection ? 
 method interception ? DSL ? named parameter ? • ߴ଎ • ΦϒδΣΫτάϥϑΩϟογϡ • Codegen Fast Object graph cache
109. Abstraction frameworks • DSL • Annotation • URI • Interface • Aspects • Hypermedia
110. Connecting frameworks • DI - ΦϒδΣΫτΛ݁Ϳ • AOP - Domain LogicͱApplication LogicΛ݁Ϳ • REST -ϦιʔεΛ݁Ϳ Connecting objects Connecting domain logic and application logic Connecting resources
113. AOP (Gregor Kiczales) DI (Martin Fowler) REST (Roy Fielding) OOP (Allan Kay) Annotation (Anders Hejlsberg) Guice (Bob Lee)
114. Why BEAR.Sunday ? • RESTfullΫϦʔϯΞʔΩςΫνϟ • APIۦಈ։ൃ • ࠶ར༻ੑ • ύϑΥʔϚϯε • ޙํޓ׵ RESTful clean architecture API driven development Reusability Performance NO BC break
115. Contributors
119. @koriym @BEARSunday