Post on 06-Aug-2015
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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
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