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Uploaded byJesse Warden
Refactoring RIA Unleashed 2011
The document primarily discusses strategies for software refactoring, emphasizing the importance of coding practices, error handling, and architectural considerations in building robust web applications. It highlights principles such as understanding priorities, building trust within teams, and leading effective projects while addressing pitfalls like null pointers and loose typing. Lastly, it suggests proactive measures for error management and the significance of mentorship and collaboration in the development process.
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Refactoring RIA Unleashed 2011
- 1. Refactoring JesseWarden
- 2.
- 3.
- 4. Who? • Jesse Warden •Web App Solution
- 5. Who? • Jesse Warden •Web App Solution • Flex, Java, and BlazeDS Consulting
- 6.
- 7.
- 8. What? • Basic Refactoring •Priority Pyramid
- 9. What? • Basic Refactoring •Priority Pyramid • Stories
- 10. What? • Basic Refactoring •Priority Pyramid • Stories • Leadership
- 11.
- 12. Why? • Coding ismore fun
- 13. Why? • Coding ismore fun • People like working with you
- 14. Why? • Coding ismore fun • People like working with you • Grow in your career
- 15. Why? • Coding ismore fun • People like working with you • Grow in your career • Better Software
- 16.
- 17. No seriously... • Iloathe it
- 18. No seriously... • Iloathe it • People have said articles helped them
- 19. No seriously... • Iloathe it • People have said articles helped them • Mentor Leadership / Stewardship
- 20.
- 21.
- 22.
- 23. Basics • Exceptions • Architecture •Refactoring Paths
- 24.
- 25.
- 26. Exceptions • Synchronous: 100% •Asynchronous: 99%
- 27. Exceptions • Synchronous: 100% •Asynchronous: 99% • Null Pointers
- 28.
- 29. Synchronous • throw newError(“b00m”);
- 30. Synchronous • throw newError(“b00m”); • try/catch
- 31. Synchronous • throw newError(“b00m”); • try/catch • “Road to hell is paved with good intentions.”
- 32.
- 33.
- 34. Asynchronous • dispatchEvent(new ErrorEvent(“b00m”)); •addEventListener(“b00m”, onHandle);
- 35. Asynchronous • dispatchEvent(new ErrorEvent(“b00m”)); •addEventListener(“b00m”, onHandle); • Same as before, don’t swallow.
- 36.
- 37.
- 38. Uncaught • loaderInfo.uncaughtErrorEvents • won’talways get a stack trace
- 39.
- 40. Uncatchable • Error #2044:Unhandled IOErrorEvent:. text=Error #2036: Load Never Completed.
- 41.
- 42. Null Pointers • SirCharles Antony Richard Hoare
- 43. Null Pointers • SirCharles Antony Richard Hoare • British Computer Scientist
- 44. Null Pointers • SirCharles Antony Richard Hoare • British Computer Scientist • "I call it my billion-dollar mistake"
- 45. Null Pointers • SirCharles Antony Richard Hoare • British Computer Scientist • "I call it my billion-dollar mistake" • Programmer Enemy #1
- 46.
- 47. Null Pointers • LooseTyping
- 48. Null Pointers • LooseTyping • External Data
- 49.
- 50.
- 51. ExternalInterface • Marshall Exceptions •set to true
- 52.
- 53.
- 54.
- 55. Exceptions • Crashes • Unexpected/UnrelatedErrors • Breed Insecurity
- 56. Exceptions • Crashes • Unexpected/UnrelatedErrors • Breed Insecurity • Cause Fire Drills
- 57.
- 58. Exceptions • Best Defenseis a Good Offense
- 59. Exceptions • Best Defenseis a Good Offense • Broken Windows
- 60.
- 61.
- 62. Fighting Back • try/catch •log the catch
- 63. Fighting Back • try/catch •log the catch • log uncaughtErrors
- 64. Fighting Back • try/catch •log the catch • log uncaughtErrors • Code Review
- 65.
- 66.
- 67. Loose Typing • Object •Dictionary
- 68. Loose Typing • Object •Dictionary •*
- 69. Loose Typing • Object •Dictionary •* • Dynamic
- 70. Loose Typing • Object •Dictionary •* • Dynamic • Interfaces
- 71.
- 72.
- 73.
- 74. Object • Protoyping • JSON •Teaching
- 75. Object • Protoyping • JSON •Teaching • delete slots
- 76.
- 77. Object Solution • Don’tUse Object
- 78. Object Solution • Don’tUse Object • Ensure casts aren’t null
- 79. Object Solution • Don’tUse Object • Ensure casts aren’t null • Same for Dynamic & Interface
- 80.
- 81. Dictionary • Easier lookupsvs. ByteArray
- 82. Dictionary • Easier lookupsvs. ByteArray • Strict Equality on Keys
- 83.
- 84.
- 85.
- 86.
- 87.
- 88. Star Solution • Don’tUse It
- 89. Star Solution • Don’tUse It • Log It
- 90. Star Solution • Don’tUse It • Log It • Ensure Consumers Guard
- 91.
- 92.
- 93. External Data • Factories •Value Object / Data Transfer Object
- 94. External Data • Factories •Value Object / Data Transfer Object • Parsing
- 95.
- 96. Parsing • Poison EntireSystem
- 97. Parsing • Poison EntireSystem • When in doubt, return null
- 98. Parsing • Poison EntireSystem • When in doubt, return null • Proactive: throw meaningful error
- 99. Parsing • Poison EntireSystem • When in doubt, return null • Proactive: throw meaningful error • Uber Proactive: Unit Test
- 100.
- 101. Parsing • Holy S$*(%&:Null Pattern
- 102.
- 103.
- 104.
- 105.
- 106.
- 107. Encapsulation • Black Box •Manages its own internal state
- 108.
- 109. Bad Encapsulation • GlobalVariables / Singletons
- 110. Bad Encapsulation • GlobalVariables / Singletons • No Accessors/API for Data Models
- 111. Bad Encapsulation • GlobalVariables / Singletons • No Accessors/API for Data Models • No API so you dig
- 112.
- 113.
- 114. Testability • Easy totest • not welded together
- 115. Testability • Easy totest • not welded together • not spaghetti code
- 116.
- 117. Services • Service Insidethe Proxy
- 118. Services • Service Insidethe Proxy • Not a service, just a loader
- 119. Services • Service Insidethe Proxy • Not a service, just a loader • No centralized error reporting
- 120.
- 121. Service Solutions • Createa base class
- 122. Service Solutions • Createa base class • log all errors
- 123. Service Solutions • Createa base class • log all errors • create an integration suite
- 124.
- 125. Big Ole’ Commands •switch
- 126.
- 127. Refactoring Paths • Whatdo you build now?
- 128. Refactoring Paths • Whatdo you build now? • What do you change to later?
- 129. Refactoring Paths • Whatdo you build now? • What do you change to later? • When?
- 130. Refactoring Paths • Whatdo you build now? • What do you change to later? • When? • Not Architecting
- 131.
- 132. Refactoring Path Ability tocode now, satisfy non-programmers for trust earning, with assurance you haven’t coded yourself into a corner.
- 133.
- 134.
- 136.
- 137. It’s Ok. It’llBe Ok.
- 138. It’s Ok. It’llBe Ok. • Lose some battles...
- 139. It’s Ok. It’llBe Ok. • Lose some battles... • ...as long as you win the war.
- 140.
- 141. Detractors • Don’t havetheir Poetic License
- 142. Detractors • Don’t havetheir Poetic License • Fear
- 143. Detractors • Don’t havetheir Poetic License • Fear • Understand the Rules & Ramifications
- 144.
- 145.
- 146.
- 147. Detractors • Ivory Zealots •Scars • Don’t Believe in their Refactoring Ability
- 148. Detractors • Ivory Zealots •Scars • Don’t Believe in their Refactoring Ability • or Yours
- 149.
- 150. Refactoring Paths • Refactoringis Temporal
- 151. Refactoring Paths • Refactoringis Temporal • Architecture is not
- 152. Refactoring Paths • Refactoringis Temporal • Architecture is not • Architecture is Plan
- 153. Refactoring Paths • Refactoringis Temporal • Architecture is not • Architecture is Plan • Refactoring is a Strategy
- 154.
- 155. Refactoring Path • Knowthe rule(s) ur breaking
- 156. Refactoring Path • Knowthe rule(s) ur breaking • do it
- 157. Refactoring Path • Knowthe rule(s) ur breaking • do it • document what needs to change
- 158. Refactoring Path • Knowthe rule(s) ur breaking • do it • document what needs to change • when you have time, fix it
- 159.
- 160.
- 161. Refactoring Paths • Usea * • Cast It
- 162.
- 163. Refactoring Paths • Makean Object
- 164. Refactoring Paths • Makean Object • Make a ValueObject
- 165.
- 166. Refactoring Path • Eventwith public var data:*;
- 167.
- 168.
- 169. Refactoring Path • Scouting •Bear Bait
- 170. Refactoring Path • Scouting •Bear Bait • Intentional Parsing Throws
- 171. Refactoring Path • Scouting •Bear Bait • Intentional Parsing Throws • Intentional Grenades
- 172.
- 173. Refactoring Path • ifif if if if if
- 174. Refactoring Path • ifif if if if if • then then then then
- 175. Refactoring Path • ifif if if if if • then then then then • badger badger badger badger
- 176. Refactoring Path • ifif if if if if • then then then then • badger badger badger badger • make a switch
- 177. Refactoring Path • ifif if if if if • then then then then • badger badger badger badger • make a switch • make functions
- 178.
- 179. Refactoring Paths • <s:Component>vs Item Renderer
- 180. Refactoring Paths • <s:Component>vs Item Renderer • Passive
- 181.
- 182.
- 183. Priority Pyramid 1. Report 2.Understanding
- 184. Priority Pyramid 1. Report 2.Understanding 3. Trust
- 185. Priority Pyramid 1. Report 2.Understanding 3. Trust 4. Lead
- 186.
- 187.
- 188. Priority Pyramid 5. Build 6.Explosions
- 189. Priority Pyramid 5. Build 6.Explosions 7. Diagnostics
- 190. Priority Pyramid 5. Build 6.Explosions 7. Diagnostics 8. Architecture
- 191. Priority Pyramid 5. Build 6.Explosions 7. Diagnostics 8. Architecture 9. Workflow
- 192.
- 193. Pyramid: Report • Whois my boss?
- 194. Pyramid: Report • Whois my boss? • What will make you happy when I leave?
- 195.
- 196.
- 197. Pyramid: Understanding • Listen •What’s the True Goal?
- 198. Pyramid: Understanding • Listen •What’s the True Goal? • What are the problems?
- 199. Pyramid: Understanding • Listen •What’s the True Goal? • What are the problems? • What are the challenges?
- 200.
- 201. Pyramid: Understanding • Explore& Document
- 202. Pyramid: Understanding • Explore& Document • Learn Data Model
- 203. Pyramid: Understanding • Explore& Document • Learn Data Model • Learn Framework
- 204. Pyramid: Understanding • Explore& Document • Learn Data Model • Learn Framework • Understanding the Story
- 205.
- 206. Pyramid: Understanding •Looking for Red Flags
- 207. Pyramid: Understanding •Looking for Red Flags • Looking for Mines
- 208. Pyramid: Understanding •Looking for Red Flags • Looking for Mines • Looking for Validation
- 209.
- 210. Pyramid: Understanding •Dissect People
- 211. Pyramid: Understanding •Dissect People • What makes them tick?
- 212. Pyramid: Understanding •Dissect People • What makes them tick? • Who listens to who?
- 213.
- 214. Pyramid: Trust • MakeFriends
- 215. Pyramid: Trust • MakeFriends • Provide Immediate Value
- 216.
- 217. Pyramid: Trust • Checkin code into source control 1st week
- 218. Pyramid: Trust • Checkin code into source control 1st week • fix a problem
- 219. Pyramid: Trust • Checkin code into source control 1st week • fix a problem • Only get 1 change at 1st impression
- 220. Pyramid: Trust • Checkin code into source control 1st week • fix a problem • Only get 1 change at 1st impression • Under Promise, Over Deliver
- 221.
- 222. Pyramid: Trust • StopFire Drills
- 223. Pyramid: Trust • StopFire Drills • Empower Through Diagnostic Tools
- 224. Pyramid: Trust • StopFire Drills • Empower Through Diagnostic Tools • Easy to use, visible logger
- 225. Pyramid: Trust • StopFire Drills • Empower Through Diagnostic Tools • Easy to use, visible logger • Easy to use, visible environment info
- 226.
- 227. Pyramid: Trust • Updateon Direction
- 228. Pyramid: Trust • Updateon Direction • Provide Transparency
- 229. Pyramid: Trust • Updateon Direction • Provide Transparency • What, why, and when
- 230. Pyramid: Trust • Updateon Direction • Provide Transparency • What, why, and when • Plan A, Plan B
- 231.
- 232. Pyramid: Lead • BePositive
- 233. Pyramid: Lead • BePositive • Short Term Goals
- 234. Pyramid: Lead • BePositive • Short Term Goals • Long Term Goals
- 235.
- 236.
- 237. Pyramid: Lead • Plan •1 thing at a time
- 238. Pyramid: Lead • Plan •1 thing at a time • Assess Problems
- 239. Pyramid: Lead • Plan •1 thing at a time • Assess Problems • Document
- 240.
- 241. Pyramid: Lead • Re-prioritizeas needed
- 242.
- 243.
- 244.
- 245. Pyramid: Lead • Delegate •Help • Divide & Conquer
- 246. Pyramid: Lead • Delegate •Help • Divide & Conquer • Short Term Branches: 3 days
- 247.
- 249.
- 251.
- 253.
- 255.
- 256. Winston Wolfe [show video] [dissect]
- 257.
- 258.
- 259. Conclusions • Exceptions: Catch& Log • Refactoring: Remember The Paths
- 260. Conclusions • Exceptions: Catch& Log • Refactoring: Remember The Paths • Listen, Build Trust, and Lead
- 261.
- 262. Thank You! Questions? Jesse Warden
- 263. Thank You! Questions? Jesse Warden webappsolution.com
- 264. Thank You! Questions? Jesse Warden webappsolution.com jessewarden.com
- 265. Thank You! Questions? Jesse Warden webappsolution.com jessewarden.com @jesterxl
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