日本 Java ユーザグループ CCC Fall 2009　でのスライドです。 「G*なクラウド ～雲のかなたに～」 まわりを見渡せばクラウドの話で持ちきりです。様々なフレームワークがクラウドに対応するなか、もちろんG*なクラウド活用法も存在します。Grails でプラグインを使ってGAE/Jに対応や、Cloud Foundry(EC2)、GroovyでのGAE/J「Gaelyk」など、Grails/Groovyでのクラウドを紹介・解説します。

1. 2009/10/08 @JJUG CCC
def speaker = new Cast(name:”T.Yamamoto”,version:”G*C-2009-10-08”)

3. ( )
DTP Web
75%Grails
JGGUG( )
Grails 9-11
Grails Acegi Plugin
http://d.hatena.ne.jp/mottsnite/
twitter @tyama

6. JGGUG
japan grails/groovy user group

7. JGGUG
japan grails/groovy user group

11. Grails
CMS

12. JGGUG
japan grails/groovy user group

14. Grails PaaS

27. # curl -L http://stax-downloads.s3.amazonaws.com/sdk/
stax-sdk-0.3.6-dist.zip > stax_sdk.zip
# unzip stax_sdk.zip
# rm stax_sdk.zip
# cd stax-sdk-0.3.6
export STAX_HOME=/opt/stax-sdk-0.3.6
export PATH=$PATH:$STAX_HOME

28. ... ...
dataSource {
dbCreate = "update"
driverClassName = "com.staxnet.jdbc.Driver"
url = "jdbc:stax://jggug"
username = "tyama"
password = "*****"
}
... ...

29. ...
log4j = {
appenders {
null name:'stacktrace'
... ...

40. Cloud Tool
grails create-app demo
cd demo
grails install-plugin cloud-tool.zip
Config.groovy
import
aws.properties
grails cloud-tools-deploy
grails cloud-tools-describe
grails cloud-tools-stop

44. war
DB

46. IP

47. DB
EBS

50. UPTIME

51. Apache
tc Server
MySQL

52. HTTPD
TC

54. AWS ACCESS KEY ID
KEY PAIRS

55. SSH

61. export APPENGINE_HOME=/opt/appengine-java-sdk-1.2.5
google.appengine.sdk='/opt/appengine-java-sdk-1.2.5'

62. $ grails install-plugin app-engine
Do you want to use JPA or JDO for persistence? (jpa, jdo)
jpa
grails-app/conf/
datastore-indexes.xml
persistence.xml
grails-app/conf/Config.groovy GAE
google.appengine.application="jggugv4"
Grails

64. $ grails install-plugin gorm-jpa
resources.groovy entityManagerFactory transactionManager
entityManagerFactory(org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean)
{
beanClassLoader = ref("classLoader")
}
transactionManager(org.springframework.orm.jpa.JpaTransactionManager) {
entityManagerFactory = entityManagerFactory
}
datanucleus-enhancer*.jar
cp $APPENGINE_HOME/lib/tools/orm/datanucleus-enhancer-1.1.4.jar lib

65. import org.datanucleus.jpa.annotations.Extension
import javax.persistence.*;
@Entity
class Event implements Serializable {
@Id
@GeneratedValue (strategy = GenerationType.IDENTITY)
@Extension (vendorName = "datanucleus",
key = "gae.encoded-pk", value = "true")
String id
/** */
@Column //
String eventName

66. def save = {
def eventInstance = new Event(params)
Event.withTransaction{
if(eventInstance.save(flush:true)) {
flash.message = "Event ${eventInstance.id} created"
redirect action:"show", id:eventInstance.id
}
else {
render view:'create', model:[eventInstance:eventInstance]
}
}
}

67. $ grails set-version 1
$ grails app-engine run

68. $ grails set-version 1
$ grails app-engine deploy
$ grails app-engine package
$ rm target/war/WEB-INF/lib/jul-to-slf4j-1.5.6.jar
$ appcfg.sh update ./target/war

80. $ dev_appserver.sh ./war
※Windows .sh→.cmd

85. View
request.setAttribute 'list', [1, 2, 3, 4]
request.setAttribute 'date', new Date()
forward 'display.gtpl'

90. mailService.send to: 'foobar@gmail.com',
subject: 'Hello World',
htmlBody: '<bold>Hello</bold>'
datastoreService.withTransaction {
// your code
}

91. import com.google.appengine.api.datastore.Entity
def person = new Entity("person")
person['name'] = " "
println person['name']
person.age = 31
println person.age
//
person.save()
//
person.delete()
//
def q = new Query('person')
def list = datastoreService.prepare(q).asList(
Builder.withLimit(20).offset(0) )

92. <system-properties>
<property name="file.encoding" value="UTF-8"/>
<property name="groovy.source.encoding"
value="UTF-8"/>
</system-properties>

93. $ ./gaelyk-setup.sh myapp001

97. Grails/Groovy
http://www.jggug.org/