OSC 2010 Hokkaido GAE/Java

1. Google App Engine /Java
Java
shuji_w6e

2. Java
Twitter: shuji_w6e
blog:

3. Java
2008
Java
NEW
http://groups.google.co.jp/group/java-sapporo

4. Equate?

5. Google App Engine

6. slim3

7. Agenda
Google App Engine / Java
slim3
etupirkacms
spin-up
Datastore

8. Demo

9. Google App Engine

10. GAE
PaaS
spin-up /spin-down
BigTable / Key- Value Datastore

11. PaaS
Platform as a Service
Python Java
500 PV

12. Lifecycle
Instance
Request spin-up spin-down
Instance Instance

13. spin-down

14. spin-up / spin-down
App spin-down
spin-down
spin-up

15. Big Table
RDB Key-Value store
HashMap

16. GAE
Eclipse + Plug-in + SDK
+

17. slim3

18. slim3
GAE
“Simple” and “Less Is More”
Seasar2, SAStruts
http://code.google.com/p/slim3/

19. Web App Framework
Layer slim3 Default
1 Action
Controller none
= 1 Controller
Model
slim3 Datastore API JDO/JPA
(Datastore)
JSP
View JSP
+ Helper API

20. JSP
Controller
slim3
JDO/JPA
Datastore API
Low level API
AppEngine SDK

21. Faster than JDO/JPA
Type safe query
Fast spin-up
Hot Reloading
Global Transaction

22. Faster than JDO/JPA
JDO/JPA
API
BigTable
Low level API
API
SQL

23. Type safe query
Eclipse
API GQL

24. Fast spin-up
GAE/Java ... 1100 1200ms
GAE/Java + slim3 ... 1300 1400ms
Low level API

25. Hot Reloading
→ → → → ....

26. Global Transaction
BigTable
slim3 Global Transaction
RDB

27. Demo

28. 13:00 17:00
slim3
http://groups.google.co.jp/group/java-sapporo

29. EtupirkaCMS

30. EtupirkaCMS
Contents Management System
Blog, , , SEO
Google App Engine
http://code.google.com/p/etupirka/

31. spin-up
1,600ms - 1,900ms
1,800ms - 2,200ms

32. 10
GAE

33. Tips

34. spin-up

35. spin-up
spin-up
2,000ms 3,000ms
Class Loading/

36. spin-down

37. Class Loading

38. Mail, TQ, Memcache

39. 1
>>
>>
>>
>>

40. Datastore /
>>
>> TQ → 300ms -400ms

41. EtupirkaCMS Cache
Request
put
get
PageCaheFilter
PageCache
(id=path)
get
Action
Template
load/parse (id=templateNa
me)
Template File put Datastore

42. Action Controller
slim3
URL
spin-up
...
...

43. Scenic3
slim3
EtupirkaCMS
T2 Framework Page
APT slim3 Controller
http://code.google.com/p/scenic3/

44. Page sample
@Page("/entry")
public class EntryPage extends ScenicPage {
@Default
public Navigation list() {
//
}
@ActionPath(“register”)
public Navigation register() {
//
}
@ActionPath(“update/{id}”)
public Navigation update(
@ActionParam(“id”) Integer id) {
//
}
}

45. Scenic3
ActionController_list
EntryPage APT ActionController_register
+ list
+ register id=4
+ update ActionController_update
APT
EntryPageMatcher
Scenic3FrontController
/update/4

46. PageClass
HotReloading
slim3 Controller
PageTester

47. Datastore

48. join, like, sum

49. TaskQueue/Cron
30

50. N:N
Entry
N
N:N
1
RDB EntryTag
BigTable join 1
N
...
Tag

51. Entry
Entry
TagName
Tag “GAE”
“Java”
“slim3”
Entry
Tag
EntryId
1
2
3

52. Entry
previous?
Entry
next?
Entry
...

53. Linked List
EntryLinkedList Entry 1:1
LinkedList BigTable
Entry EntryListNode TaskQueue
EntryListNode EntryListNode EntryListNode
NextEntry NextEntry NextEntry
PreviousEntry PreviousEntry PreviousEntry

54. ...
GAE
GAE
AppEngine-ja-night Twitter

55. AppEngine
ja-night Sapporo?