@AdamBien / adam-bien.com

Micro|Pico|Femto|Atto (MPFA) Services with Java EE 7

on Java 8 and Docker

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This talk is also fully compatible with micro, femto

and atto services :-)

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Im working as Java EE/SE developer, consultant, sometimes author, speaker and trainer with Java since 1995...

...and still really enjoying it!

Java Programming Language rocks!

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blog.adam-bien.com twitter.com/AdamBien airhacks.comairhacks.ioairhacks.tv

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Adam Bien,

press.adam-bien.com

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realworldpatterns.com

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Definition

In short, the microservice architectural style is an approach to developing a single application as a suite of small services, each running in its own process and communicating with lightweight mechanisms, often an HTTP resource API. These services are built around business capabilities and independently deployable by fully automated deployment machinery. There is a bare minimum of centralized management of these services, which may be written in different programming languages and use different data storage technologies.http://martinfowler.com/articles/microservices.html

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Definition

Microservices is a software architecture design pattern, in which complex applications are composed of small, independent processes communicating with each other using language-agnostic APIs.These services are small, highly decoupled and focus on doing a small task.

http://en.wikipedia.org/wiki/Microservices

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What would be the opposite?

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The Default Java EE Architecture

Dont make me think

BCE / ECB

Conventions are paramount, configuration is optional

Business Component

ControlBoundary Entity

Subsystem / Microservice / WARs

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The Default Java EE Deployment

Self-contained WARs

One Server, One Domain, One War

No Dependencies

No JARs

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Default Java EE Design

No Interfaces

95% Business Code

Few annotations

Just POJOs

Straightforward testing

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Installation

Download size: ~100MB

Installation: unzip

Start: Shell script execution

Start time: 1s - 3secs

Pure Java is default.

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Overhead: GlassFish v4

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Overhead: TomEE 1.7.1

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Overhead: Wildfly 8.1

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Overhead: WSL12.1.3.0.0

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Overhead Summary

An idle browser consumes more memory, than an idle application server.

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Empty Chrome

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WAR Packaging

unzip xyz.war 0,02s user 0,02s system 64% cpu 0,072 total

jar -xvf zyz.war 0,17s user 0,05s system 114% cpu 0,191 total

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Maven Build

24 lines of pom.xml and:[INFO] ------------------------------------------------------------------------

[INFO] BUILD SUCCESS

[INFO] ------------------------------------------------------------------------

[INFO] Total time: 3.913 s

Some code.

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Thank You! and see you at

workshops.adam-bien.com