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A Comprehensive Spring Showcase:

Personal Cloud Storage Application

Erdem Günay, Expert Software Developer, Turkcell

@gunayus

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About me

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About professional me

B. Sc. Degree from Computer Engineering, Middle East Technical

University, Ankara, 1999

15 years experience with Java

10 years experience with Spring

Started and contirbuted project http://www.gwt-openlayers.org/

Enterprise application architecture

Working @Turkcell for 10 years

In organization Advanced Spring Framework trainer

In the project, software architect and developer

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Agenda

Spring Boot

Spring Data

Spring Amqp

Elastic Search

Openstack

App Demo

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Mobile Cloud Middleware

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Personal Cloud Solution Architecture

Clients

AP

I LA

YER

Frontend Storage

Elastic Search

file metadata indextoken cache

Oracle DB

accountsubscription

file system structurefile metadata

sharing metadata

Openstack

keystoneswift

file binary dataupload / downoad

Social / Cloud

Backend

BackendServices

Legacy

Enterprise Backend Systems

Rabbit MQ

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spring.io

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SPRING IO EXECUTION:

Spring Boot

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Before Spring Boot – hard work on dependency management

….

….

many others

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After Spring Boot – less work on dependency management

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After Spring Boot – still have all the jars

….

….

many others

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So easy to start & debug a web app

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& Expose a Rest service

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& Expose a SOAP Web service

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Deploy on a web app container

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Auto configuring properties

application.properties

# Spring Profiles

# ===============

spring.profiles.active=test, apiservice, backend

# Global properties

...

application-apiservice.properties

# apiservice related properties

# ===============

api.service.url=http://...

# other properties

...

application-backend.properties

# backend related properties

# ===============

backend.service.url=http://...

# other properties

...

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Configuring environmental differences – DEV

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Configuring environmental differences – TEST & PROD

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@Scheduled, @Async

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@Scheduled, @Async

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SPRING IO FOUNDATION:

Spring Data

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In the beginning – all work done by developers

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Spring killed the pain a bit – obtained & released resources

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Got better with JPA & Hibernate, but still coded by developers

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Finally, «no code no bug»

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All you need is javax.persistence @Entity

/**

* @author Oliver Gierke

*/

@Entity

public class Customer {

@Id

@GeneratedValue(strategy = GenerationType.AUTO)

private Long id;

private String firstname;

private String lastname;

@JsonIgnore

@OneToMany(mappedBy="customer")

private Set<Account> accounts = new HashSet<Account>();

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Still plain old Sql, but not coded, auto generated, time saving

select customer0_.id as id1_1_,

customer0_.firstname as firstnam2_1_,

customer0_.lastname as lastname3_1_

from customer customer0_

where (customer0_.firstname like ?)

and upper(customer0_.lastname)=upper(?)

public List<Customer> findByFirstnameLikeAndLastnameIgnoreCase(

String firstname, String lastname);

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Custom, native, modifying queries

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Spring AMQP

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Spring AMQP – RabbitMQ Configuration

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Spring AMQP – Consumer Configuration

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Spring AMQP – Message listener

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Spring AMQP – Message producer

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Spring summary

Spring Boot : the parent of everything, auto configuration

Spring Web : Restful APIs, @RestTemplate

Spring Data JPA : Repositories, custom, native, modifying queries

Spring Security

Spring Social : sharing on Twitter, Facebook

Spring Web Services : client & server

Spring AMQP

@Async, @Scheduled, @Transactional

@Bean Java config

No XML config or web.xml at all

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Elastic Search

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Elastic Search

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Elastic Search

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Elastic Search – index a document

index type id

source

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Elastic Search – get a document

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Elastic Search – Integrate with Spring App Context

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Elastic Search – Index a document

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Elastic Search – Search documents

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Elastic Search – Delete user documents

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openstack

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Openstack

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Openstack - Modules

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Openstack – Keystone authentication API

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Openstack – Authentication from Spring

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Openstack – Account creation from Spring

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Openstack – User creation from Spring

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Openstack – File upload from Spring

https://{swift_url}/v1/AUTH_049037f79ea24214b2778830c96fd243/CONTAINER_MAIN/

3b841cd9-547b-432a-98d9-3ce6211bab4f

project_id container_name

file_path

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Openstack – File download from Spring

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Demo

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APPLICATION

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The Team

Volkan Esgel – Security master

Hüseyin Özcan – The UI man

Erdem Günay – it’s me

Kemal Yılmaz – the manager of the team

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Learn More. Stay Connected.

Twitter: twitter.com/gunayus

LinkedIn: linkedin.com/in/gunayus

Github: github.com/egunay

Twitter: twitter.com/springcentral

YouTube: spring.io/video

LinkedIn: spring.io/linkedin

Google Plus: spring.io/gplus