CLOUD FOUNDRY JAVA CLIENT FOR FUN AND PROFIT†

Josh Ghiloni

jghiloni@ecsteam.com

@joshghiloni

†Fun and Profit Not Guaranteed

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ABOUT ECS TEAMTechnology consulting company with headquarters in Denver, COFounded in 1999Completed 40+ cloud native development engagements since 2014Bronze Sponsor, CF SummitSilver Member, CF FoundationSponsor, Colorado CF Meetup

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AGENDA1. What's new in Java 8?2. Introduction to Project Reactor3. Interacting with the UAA4. Interacting with the Cloud Foundry API5. Interacting with the Firehose

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WHAT'S NEW IN JAVA 8?

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WHAT'S NEW IN JAVA 8?FUNCTIONAL INTERFACES

public interface Function<T, R> { R apply(T input); }

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WHAT'S NEW IN JAVA 8?STREAMS

public <T> Stream<T> of(T... items) { return Arrays.stream(items); }

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WHAT'S NEW IN JAVA 8?

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WHAT'S NEW IN JAVA 8?LAMBDAS

public List<Integer> squaredIntegers(Integer... ints) { return Arrays.stream(ints).map((i) -> i * i).collect(Collectors.toList()); }

public List<Integer> positiveIntegers(Integer... ints) { return Arrays.stream(ints).filter((i) -> i > 0).collect(Collectors.toList()); }

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INTRODUCTION TO PROJECTREACTOR

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INTRODUCTION TO PROJECT REACTORNon-blocking APICompatible with Standard Java FeaturesTyped sequences

Publisher - Reactive Standard (used for 0 .. N items)Mono - Used for 0 .. 1 itemsFlux - Used for N items

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INTERACTING WITH THE CLOUD FOUNDRY APITwo global components:

ConnectionContext - Info about foundationTokenProvider - Authentication information

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INTERACTING WITH THE CLOUD FOUNDRY APIClient interface:

ConnectionContext - Info about foundationTokenProvider - Authentication informationUaaClient - Work with the Cloud Foundry UAA

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INTERACTING WITH THE CLOUD FOUNDRY APIDEMO!

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INTERACTING WITH THE CLOUD FOUNDRY APIClient interface:

ConnectionContext - Info about foundationTokenProvider - Authentication informationUaaClient - Work with the Cloud Foundry UAACloudFoundryClient - Work with the Cloud Foundry REST API

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INTERACTING WITH THE CLOUD FOUNDRY APIDEMO!

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INTERACTING WITH THE CLOUD FOUNDRY APIClient interface:

ConnectionContext - Info about foundationTokenProvider - Authentication informationUaaClient - Work with the Cloud Foundry UAACloudFoundryClient - Work with the Cloud Foundry REST APIDopplerClient - Work with the Cloud Foundry Firehose

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INTERACTING WITH THE CLOUD FOUNDRY APIDEMO!

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THANKS!ANY QUESTIONS?

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