This document discusses deploying a Play! application called BookShelfs to different platforms using different databases and persistence frameworks. It compares deploying to Google App Engine using Siena and the GAE datastore, and deploying to Heroku using Siena with PostgreSQL or MongoDB. Code samples and URLs are provided for BookShelfs deployed in each configuration.

1. Play! + GAE
Play! + Heroku
@hagikuratakeshi

2. • ( )
Twitter @hagikuratakeshi
•

3. • ( )
•
(Aws Management Console )
• Hadoop

4. •

5. Play!

6. BookShelfs
•http://books-share.appspot.com/

7. BookShelfs
•
•
•
( BookShelves)

8. BookShelfs
•Play!(Java) + GAE + Siena
• Amazon API
• Twitter4j

9. Play! ?
•Java
•
•@ikeike443

10. GAE ?
•
•Play! GAE Module
•> play install gae
•PaaS

11. Siena ?
•GAE Datastore O/R
•Play! Module
•> play install siena
•Playframework GAE/
Siena

12. GAE

14. ※ Dis
GAE

15. •
•$8/
• SpinUp Always On ($0.30/ )
( 3Instance )

16. •
•$180/

17. $100

20. Heroku
•Ruby PaaS
(Java, Clojure, Node.js )
•Play! !!
•No vendor lock in !!
• (Small Start )

21. Heroku

22. GAE, Siena

23. •$ heroku login
•$ git init
•$ git add .
•$ git commit -m init
•$ heroku create --stack cedar
•$ git push heroku master

24. •http://bookshelfs-siena-
local.herokuapp.com/

25. •Siena GAE
→Heroku
Deploy

26. ��������������

27. →Siena
Model

28. Heroku PostgreSQL

29. JPA
models

31. Siena 2.0 GAE
MySQL/PostgreSQL/Hbase
�����������������

32. Siena/PostgreSQL

33. 1
•Model List
→

34. 2
•Model
User -> Account
PostgreSQL User
Table

35. GAE Module
•GAE Module
•Task Queue (Tweet Queueing)
• com.google.appengine.api.datastore.Blob
•

36. KVS -> RDB
•GAE BigTable -> PostgreSQL
→
→ KVS
→ RDB
→

37. KVS
•
Book Account
id account id name
101 A01 A01 User1
102 A01 A02 User2

38. (1/2)
•
Book
id account name
101 A01 User1
102 A01 User1

39. (2/2)
• Java
@Override
public JsonElement serialize(Book book, Type type) {
Account owner = Account.findById(book.ownerUserId);
result.add("owner", gson.toJsonTree(owner));
}

40. RDB
•
→
•RDB -> KVS
→ join SQL

41. •BookShelfs Java
→ BigTable ( KVS)
→

42. DB Index (1/3)
•GAE filter, order
Query Index
-> deploy
→ datastore-indexes-auto.xml

43. DB Index (2/3)
List<Borrow> borrows =
Borrow.all().filter("borrowerUserId",userId)
.filter("status ", BookStatus.RETURNED)
.order("-createdAt")
.fetch();
Index

44. DB Index (3/3)
•Siena PostgreSQL
Index annotation
Index
→ Index
?
→ (fullscan, sort)

45. Heroku
$ git commit
$ git push heroku master

46. •http://bookshelfs-
postgres.herokuapp.com/

47. Heroku
GAE

48. GAE Datastore CSV
URL:
http://d.hatena.ne.jp/eller/20110103

49. Heroku PostgreSQL
•$ heroku db:push
→ DB push
sqlite
PostgreSQL CSV

50. GAE → Heroku

51. Deploy
•
•GAE -> $ play gae:deploy
•Heroku ->
$ git push heroku master
(git )

52. •Heroku (2011/11 )
•GAE -> $180
(BookShelfs )
•Heroku -> $0 $15
(Shared Database )

53. •Heroku SpinUp
→Amazon Ec2 Instance
•DB

55. Heroku
Addon

56. MongoDB Hosting Addon

57. MongoDB Module
Play!
→ Morphia

58. Morphia
package models;
import play.data.validation.Email;
import play.data.validation.Required;
import play.modules.morphia.Model; Morphia Model
import play.modules.morphia.Blob;
import com.google.code.morphia.annotations.Entity;
@Entity
public class User extends Model {
@Email
@Required
public String email;
@Required
public String password;

59. Model
→Siena

60. Siena MongoDB
PersistenceManager
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61. 1

62. Siena 2.0

63. Siena
application.conf
Mongo PersistenceManager
↓
play.modules.siena.SienaPlugin

64. application.conf
db=mongodb
siena.mongodb.hostnames=dbh55.mongolab.com:
27557
siena.mongodb.databaseName=heroku_appxxxxxxxx
siena.mongodb.userName=heroku_appxxxxxxx
siena.mongodb.password=xxxxxxxxxxxxx

65. •http://bookshelfs-
mongo.herokuapp.com/

66. MongoDB

67. DB
Siena-MongoDB
Merge
→

68. •2011/11 Heroku
PostgreSQL or MongoDB
• OpenSource
•Siena-MongoDB Merge

69. •No vendor lock in
→Siena PostgreSQL
•Play! + Heroku

70. • GAE ( URL
• http://books-share.appspot.com/
• Heroku
• Siena-GAE(Ec2 )
• http://bookshelfs-siena-local.herokuapp.com/
• Siena-PostgreSQL
• http://bookshelfs-postgres.herokuapp.com/
• Siena-MongoDB ( )
• http://bookshelfs-mongo.herokuapp.com/