**Ryan Timmons**
**@rtimmons**

Front Matter

Lesson Plan

Agenda.todo

• Welcome and Import Project

git clone 	https://github.com/rtimmons/c4q-pubsub 	 pubsub

./gradlew test
./gradlew idea
open pubsub.ipr

# Play the game:
./gradlew shadowJar
java -jar build/libs/*.jar

java -jar build/libs/*.jar 50 100

# (control+d to quit)

• Warmup @done(2017-05-21)

  • Individual: Change GuessingGame to pass in min/max from command-line @done(2017-05-21)

• Morning New Material: Dependency Injection @done(2017-05-21)

  • Group: Introduce Dependency Injection @done(2017-05-21)

  • Group: Extract Printer and inject into GuessingGame @done(2017-05-21)

    Solution: printer-refactor

git stash
git checkout printer-refactor

• Morning Exercise: Practice DI-Based Refactoring @done(2017-05-21)

  • Individual: Extract Player and inject @done(2017-05-21)

  • Individual: Add automated testing @done(2017-05-21)

    Solution: player-refactor

git stash
git fetch
git checkout lab-player

git stash
git fetch
git checkout player-refactor

• Mockito

• Afternoon New Material: PubSub

  • Group: Define PubSub together; Why use it?
  • Group: Dispatcher, and Listener interfaces

• Afternoon Exercises

  • Individual: Write SerialDispatcher and PrintingListener implementations and tests.

    Solution: pubsub

  • Individual: Model NumberGame as Events and Listeners

PubSub

Events

• GameStarted
• RoundStarted
• RoundEnded
• GuessCreated
• PlayerDecision

Context

• StartMin
• StartMax
• KnownMax
• KnownMin
• CurrentGuess
• GuessCount

Resources

• Mockito: http://www.vogella.com/tutorials/Mockito/article.html
• DI with Android: https://tech.just-eat.com/2015/10/26/dependency-injection-on-android/