Spring as a Cloud Platform (Developer Summit 2011 17-C-5)

Developers Summit 2011

17-C-5





Simple Object

Portable Service Abstraction








水平方向への拡張 →対応プラットフォーム

時間軸方向への拡張 →開発ライフサイクル

垂直方向への拡張 →プラットフォームスタック



H/W

OS

Middle Ware

Framework

Application


JVM

Servlet その他の仕様

Spring

Roo/Grails

既存のパワフルで拡張性の高いレイヤ

選択肢が広い

生産性が高い

代わりに選択肢は狭まる

既存のレイヤの上に構築

ランタイムはそのまま


App

App

App

App

App

App

vSphere

vCloud Other Cloud


Force.com Database

Force.com Platform Services

Your Java App

VMware vSphere

Spring & Tomcat

VMware vCloud


Scaling(スケールアップ) and Load-balancing(ロードバランス) as a service

アプリケーションライフサイクル管理

自動バックアップ & ディザスタリカバリ

Monitoring(監視) and diagnostics(診断) as a service

Your Java App

Force.com Database

プラットフォームがサービスとして

提供


GAE/Jのスタックの上でSpringを提供

GWTとの連携 Hypericに

よる監視機能を提供



vSphere

vCloud

SUSE Linux


vSphere

vCloud

App App App

Linux




Spring

Web Service Data Access

JPA

Hibernate

JDBC HSQLDB

Spring tc Server


@Controller @RequestMapping("/login.form") public class LoginController { private LoginService loginService; @Autowired public void setLoginService(LoginService loginService) { this.loginService = loginService; } ... @RequestMapping(method = RequestMethod.GET) public String setupForm(ModelMap model) { if (loginService.isLogin()) { model.addAttribute("login", loginService.getLoginUser()); return loginService.getWelcomePage(); } else { model.addAttribute("login", new LoginBean()); return loginService.getLoginPage(); } } … }

<?xml version="1.0" encoding="UTF-8"?> <beans ...> <context:component-scan base-package="sample.spring.mvc.web" /> <bean id="messageSource" class="org.springframework.context.support. ResourceBundleMessageSource"> <property name="basename" value="messages" /> </bean> </beans>

appContext-web.xml


<%@ page language="java" contentType="text/html; charset=Shift_JIS" pageEncoding="Shift_JIS" isELIgnored="false" %> <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS"> <title>Login Page</title> </head> <body> <h1>Login!</h1> <form:form modelAttribute="login"> <table> <tr> <td>Login Name:</td> <td> <form:input path="loginname"/> <font color="red"><form:errors path="loginname"/></font> </td> </tr> .... <tr> <td colspan="2"><input type="submit" name="Login" value="Login"></td> </tr> </table> </form:form> </body> </html>

<?xml version="1.0" encoding="UTF-8"?> <beans:beans ...> <annotation-driven /> <resources mapping="/resources/**" location="/resources/" /> <beans:bean class="org.springframework.web.servlet.view. InternalResourceViewResolver"> <beans:property name="prefix" value="/WEB-INF/views/" /> <beans:property name="suffix" value=".jsp" /> </beans:bean> </beans:beans> login.jsp

appContext-view.xml


@Service("loginService") public class LoginServiceImpl implements LoginService { @Autowired private MemberDao memberDao; public void setMemberDao(MemberDao memberDao) { this.memberDao = memberDao; }

@Transactional(readOnly=true) public boolean login(String loginname, String password) { List<LoginBean> beans = memberDao.findByLoginname(loginname); if (beans.size() > 0) { LoginBean bean = beans.get(0); if (bean.getPassword() != null && bean.getPassword().equals(password)) { loginManager.setLoginUser(bean); return true; } } return false; } }

<?xml version="1.0" encoding="UTF-8"?> <beans …> <context:annotation-config/> <context:component-scan base-package="sample.spring.mvc.service"/>

<bean id="loginManager" scope="session" class="sample.spring.mvc.service.LoginManager"> <aop:scoped-proxy/> </bean> </beans>

appContext-service.xml


@Repository("memberDao") public class MemberDaoImpl implements MemberDao { @PersistenceContext EntityManager em;

public List<LoginBean> findByLoginname(String loginname) { Query query = em.createQuery( "SELECT l FROM LoginBean l WHERE l.loginname = :loginname"); query.setParameter("loginname", loginname); return query.getResultList(); } }

<?xml version="1.0" encoding="UTF-8"?> <beans… <context:annotation-config/> <context:component-scan base-package="sample.spring.mvc.dao"/> <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> <property name="persistenceUnitName" value="sample" /> <property name="dataSource" ref="dataSource"/> <property name="jpaVendorAdapter"> <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"> <property name="showSql" value="true" /> </bean> </property> </bean> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="org.hsqldb.jdbcDriver"/> <property name="url" value="jdbc:hsqldb:hsql://localhost/"/> <property name="username" value="sa"/> <property name="password" value=""/> </bean> <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> <property name="entityManagerFactory" ref="entityManagerFactory"/> </bean> <tx:annotation-driven transaction-manager="transactionManager"/> </beans>

appContext-dao.xml


@Entity @Table(name="member") public class LoginBean implements Serializable { public LoginBean() {} @Id @GeneratedValue private Long id; @Column(unique=true) private String loginname; private String password; @Column(name="name") private String nickname; … }

<?xml version="1.0" encoding="UTF-8"?> <persistence …> <persistence-unit name="sample" transaction-type="RESOURCE_LOCAL"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <class>sample.spring.mvc.bean.LoginBean</class> <exclude-unlisted-classes>false</exclude-unlisted-classes> <properties> <property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect" /> </properties> </persistence-unit> </persistence>

persistence.xml






Spring


JPA Datanucleus

Connector Force.com Database

Spring tc Server on VMForce

Webサービス API




appContext-web.xml



<?xml version="1.0" encoding="UTF-8"?> <beans:beans ...> <annotation-driven /> <resources mapping="/resources/**" location="/resources/" /> <beans:bean class="org.springframework.web.servlet.view. InternalResourceViewResolver"> <beans:property name="prefix" value="/WEB-INF/views/" /> <beans:property name="suffix" value=".jsp" /> </beans:bean> </beans:beans>

appContext-view.xml

login.jsp










<?xml version="1.0" encoding="UTF-8"?> <beans ...> <context:annotation-config/> <context:component-scan base-package="sample.spring.mvc.dao"/> <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> <property name="persistenceUnitName" value="sample" /> </bean> <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> <property name="entityManagerFactory" ref="entityManagerFactory"/> </bean> <tx:annotation-driven transaction-manager="transactionManager"/> </beans>

appContext-dao.xml


@Entity @Table(name="member") public class LoginBean implements Serializable { public LoginBean() {}

@Id @GeneratedValue(strategy = GenerationType.IDENTITY) private String id; @Column(unique=true) private String loginname; private String password; //@Column(name="name") private String nickname; ... }

<?xml version="1.0" encoding="UTF-8" standalone="no"?> <persistence ...> <persistence-unit name="sample"> <provider>org.datanucleus.jpa.PersistenceProviderImpl</provider> <properties> <property name="datanucleus.Optimistic" value="false"/> <property name="datanucleus.datastoreTransactionDelayOperations" value="true"/> <property name="sfdcConnectionName" value="DefaultSFDCConnection"/> <property name="datanucleus.ConnectionURL" value="sfdc:https://xxx.salesforce.com/services/Soap/u/20.0"/> <property name="datanucleus.ConnectionUserName" value="[email protected]"/> <property name="datanucleus.ConnectionPassword" value="xxxx"/> <property name="datanucleus.autoCreateSchema" value="false"/> <property name="datanucleus.autoCreateTables" value="true"/> <property name="datanucleus.autoCreateColumns" value="false"/> <property name="datanucleus.autoCreateConstraints" value="false"/> <property name="datanucleus.validateTables" value="false"/> <property name="datanucleus.validateConstraints" value="false"/> <property name="datanucleus.jpa.addClassTransformer" value="false"/> </properties> </persistence-unit> </persistence>

IDフィールドはStringでなければならない

カスタムフィールドは標準フィールドの名前とかぶらない

force.comのAPIのエンドポイント

persistence.xml




サーバの追加

VMForce用の Extensionを追加


カスタムオブジェクトの作成

カスタムフィールドの追加

初期データの投入


実行するインスタンス数の選択

アクセス先のURL

インスタンスの状況を参照





Spring


JPA Datanucleus

Connector

Google AppEngine BigTable




appContext-web.xml



<?xml version="1.0" encoding="UTF-8"?> <beans:beans ...> <annotation-driven /> <resources mapping="/resources/**" location="/resources/" /> <beans:bean class="org.springframework.web.servlet.view. InternalResourceViewResolver"> <beans:property name="prefix" value="/WEB-INF/views/" /> <beans:property name="suffix" value=".jsp" /> </beans:bean> </beans:beans>

appContext-view.xml

login.jsp


<?xml version="1.0" encoding="utf-8" standalone="no"?> <appengine-web-app xmlns="http://appengine.google.com/ns/1.0"> <application>xxx</application> <version>2</version> <sessions-enabled>true</sessions-enabled> </appengine-web-app>

セッションを使う宣言

appengine-web.xml










<?xml version="1.0" encoding="UTF-8"?> <beans ...> <context:annotation-config/> <context:component-scan base-package="sample.spring.mvc.dao"/> <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> <property name="persistenceUnitName" value="sample" /> </bean> <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> <property name="entityManagerFactory" ref="entityManagerFactory"/> </bean> <tx:annotation-driven transaction-manager="transactionManager"/> </beans>

appContext-dao.xml


@Entity @Table(name="member") public class LoginBean implements Serializable { public LoginBean() {}

@Id @GeneratedValue(strategy = GenerationType.IDENTITY) private String id; //@Column(unique=true) private String loginname; private String password; //@Column(name="name") private String nickname; ... }

<?xml version="1.0" encoding="UTF-8" standalone="no"?> <persistence …> <persistence-unit name="sample"> <provider>org.datanucleus.store.appengine.jpa.DatastorePersistenceProvider</provider> <properties> <property name="datanucleus.NontransactionalRead" value="true"/> <property name="datanucleus.NontransactionalWrite" value="true"/> <property name="datanucleus.ConnectionURL" value="appengine"/> <property name="datanucleus.ConnectionUserName" value=""/> <property name="datanucleus.ConnectionPassword" value=""/> <property name="datanucleus.autoCreateSchema" value="false"/> <property name="datanucleus.autoCreateTables" value="true"/> <property name="datanucleus.autoCreateColumns" value="false"/> <property name="datanucleus.autoCreateConstraints" value="false"/> <property name="datanucleus.validateTables" value="false"/> <property name="datanucleus.validateConstraints" value="false"/> <property name="datanucleus.jpa.addClassTransformer" value="false"/> </properties> </persistence-unit> </persistence>

使えない設定も多い

AppEngine専用のJPAプロバイダー

persistence.xml











Date post:	17-May-2015
Category:	Technology
Upload:	kazuyuki-kawamura
View:	2,377 times
Download:	1 times

Spring as a Cloud Platform (Developer Summit 2011 17-C-5)

Technology