spring capitulo 05

Conhecer as facilidades de e-mails do Spring

Saber agendar tarefas com JDK Task

Saber interceptar métodos com AOP

Saber montar um contexto de teste com JUnit

Saber expor serviço via RMI

Depedências: mail.jar activation.jar• MailSender• Hierarquia de exceptions:

▪Funcionalidades especializadas para o envio de e-mail com suporte MIME(MimeMessagePreparator)

<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl"> <property name="host" value="host.url.com.br" /> <property name="password" value="senha" /> <property name="username" value="[email protected]" /></bean>

<bean id="simpleMailMessage" class="org.springframework.mail.SimpleMailMessage"> <constructor-arg index="0" ref="templateMessage" /> <property name="to" value="[email protected]" /> <property name="text" value=" 123 Testando... " /></bean>

package com.targettrust.spring.email;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import org.springframework.mail.MailException;import org.springframework.mail.MailSender;import org.springframework.mail.SimpleMailMessage;public class TesteEnviaEmail { public static void main(String[] args) { ApplicationContext ac = new ClassPathXmlApplicationContext("/com/targettrust/spring/email/Spring-beans.xml");

SimpleMailMessage msg = (SimpleMailMessage)ac.getBean("simpleMailMessage"); MailSender ms = (MailSender)ac.getBean("mailSender");

try{ ms.send(msg); } catch(MailException ex) { ex.printStackTrace(); }

}}

package com.targettrust.spring.email;import java.io.File;import javax.mail.internet.MimeMessage;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import org.springframework.core.io.FileSystemResource;import org.springframework.mail.javamail.JavaMailSender;import org.springframework.mail.javamail.MimeMessageHelper;public class TesteMimeMessageHelperAtt { public static void main(String[] args) { ApplicationContext ac = new ClassPathXmlApplicationContext( "/com/targettrust/spring/email/Spring-beans.xml"); JavaMailSender ms = (JavaMailSender)ac.getBean("mailSender"); try{

MimeMessage message = ms.createMimeMessage();MimeMessageHelper helper = new MimeMessageHelper(message,true);helper.setFrom("[email protected]");helper.setTo("[email protected]");helper.setText("Email MimeMessageHelper");

FileSystemResource file = new FileSystemResource(new File(".").getCanonicalPath() + "/build.xml");

helper.addAttachment("build.xml", file);

ms.send(message);}catch(Exception e){ e.printStackTrace();}

}}

package com.targettrust.spring.email;import java.io.File;import javax.mail.internet.MimeMessage;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import org.springframework.core.io.FileSystemResource;import org.springframework.mail.javamail.JavaMailSender;import org.springframework.mail.javamail.MimeMessageHelper;public class TesteMimeMessageHelperAttImg { public static void main(String[] args) { ApplicationContext ac = new ClassPathXmlApplicationContext(

"/com/targettrust/spring/email/Spring-beans.xml");

JavaMailSender ms = (JavaMailSender)ac.getBean("mailSender"); try{

MimeMessage message = ms.createMimeMessage();MimeMessageHelper helper = new MimeMessageHelper(message,true);helper.setFrom("[email protected]");helper.setTo("[email protected]");helper.setText("<html><body><img src='cid:img1'><br>Email MimeMessageHelper com

suporte a imagems em linha!</body></html>",true);

FileSystemResource file = new FileSystemResource(new File(".").getCanonicalPath() + "/imagem.jpg");

helper.addInline("img1", file);ms.send(message);

}catch(Exception e){e.printStackTrace();

} }}

• Agendamento de Tarefas• Utiliza beans• Execução de tempos em tempos• Ecolha: menos XML VS menos

Acoplamento• Timer JDK

package com.targettrust.spring.jdktask;import java.util.Date;import java.util.TimerTask;public class HoraCertaService extends TimerTask{

@Override@SuppressWarnings("deprecation")public void run() {

System.out.println(new Date().getHours() + ":" + new Date().getMinutes() + ":" + new Date().getSeconds() );

}}

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">

<bean id="horaCertaService"class="com.targettrust.spring.jdktask.HoraCertaService"

/><bean

id="scheduledTask"class="org.springframework.scheduling.timer.ScheduledTimerTask"lazy-init="false"

><property name="delay" value="0" /><property name="period" value="1000" /><property name="timerTask" ref="horaCertaService" />

</bean></beans>

http://www.springframework.org/schema/beans/spring-beans-2.0.xsd"> <bean id="horaCertaServiceNaoAcoplada" class="com.targettrust.spring.jdktask.HoraCertaServiceNaoAcoplada“ /> <bean id="scheduledTask“ lazy-init="false" class="org.springframework.scheduling.timer.ScheduledTimerTask” >  <property name="delay" value="0" />  <property name="period" value="1000" />  <property name="timerTask" ref="executor" /> </bean> <bean id="executor" class="org.springframework.scheduling.timer.MethodInvokingTimerTaskFactoryBean“ > <property name="targetObject" ref="horaCertaServiceNaoAcoplada" /> <property name="targetMethod" value="showTime" /> </bean> <bean id="timerFactory" class="org.springframework.scheduling.timer.TimerFactoryBean“ > <property name="scheduledTimerTasks"> <list>

<ref bean="scheduledTask" /> </list> </property> </bean></beans>

• Utiliza AOP com AspectJ• Abstrações sobre o AspectJ• Weaving em runtime• Dependências:

• aspectjweaver.jar• aspectjrt.jar

package com.targettrust.spring.aop;public interface Service {

public void fazAlgo();}

package com.targettrust.spring.aop;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;public class ServiceA implements Service{

private static final Log log = LogFactory.getLog(ServiceA.class);@Overridepublic void fazAlgo() {

log.info("Fiz algo do tipo A");}

}

package com.targettrust.spring.aop;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;public class ServiceB implements Service{

private static final Log log = LogFactory.getLog(ServiceB.class);

@Overridepublic void fazAlgo() {

log.info("Fiz algo do tipo B");}

}

package com.targettrust.spring.aop;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;public class ServiceC implements Service{

private static final Log log = LogFactory.getLog(ServiceC.class);

@Overridepublic void fazAlgo() {

log.info("Fiz algo do tipo C");}

}

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd"> <aop:aspectj-autoproxy/> <bean id="aspecto“ lazy-init="false" class="com.targettrust.spring.aop.Aspecto“ /> <bean id="sa“ class="com.targettrust.spring.aop.ServiceA“ /> <bean id="sb“ class="com.targettrust.spring.aop.ServiceB“ /> <bean id="sc“ class="com.targettrust.spring.aop.ServiceC“ /> <bean id="services“ class="java.util.ArrayList“ > <constructor-arg index="0"> <list>

<ref bean="sa" /><ref bean="sb" /><ref bean="sc" />

</list> </constructor-arg> </bean></beans>

package com.targettrust.spring.aop;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import org.aspectj.lang.ProceedingJoinPoint;import org.aspectj.lang.annotation.After;import org.aspectj.lang.annotation.Around;import org.aspectj.lang.annotation.Aspect;import org.aspectj.lang.annotation.Before;@Aspectpublic class Aspecto {

private static final Log log = LogFactory.getLog(Aspecto.class);

@Before("execution(* com.targettrust.spring.aop.Service.*(..))")public void execucaoDeFazAlgoAntes() {

log.info("To sabendo antes da execução de Service");}

@After("execution(* com.targettrust.spring.aop.Service.*(..))")public void execucaoDeFazAlgoDepois() {

log.info("To sabendo depois da execução de Serice");}

@Around("execution(* com.targettrust.spring.aop.ServiceB.faz*(..)))") public Object doBasicProfiling(ProceedingJoinPoint pjp) throws Throwable {

Object retVal = pjp.proceed(); log.info("To sabendo around SericeB"); return retVal;}

}

• Integração com Junit e TestNG•Auto-injeção de propriedades •Rollback automático após o teste•Prove testes integrados sem servidor de aplicação, mas usando transação e banco de dados.•Cache

•AbstractDependencyInjectionSpringContextTests•AbstractAnnotationAwareTransactionalTests:

• @DirtiesContext: Annotation que faz o mesmo que o método setDirty isso fará que o contexto seja recarregado nesse método.• @ExpectedException: Annotation que sinaliza que o método deve retornar um exception específica, se ele não retornar o teste irá falhar.• @NotTransactionl: Indica que esse método roda fora do contexto de transações do Spring.• @Repeat: Essa annotation recebe um número, por exemplo 5. O Spring irá repitir esse teste 5 vezes.

•AbstractTransactionalDataSourceSpringContextTests

package com.targettrust.spring.testing;import java.util.Date;import junit.framework.Assert;import org.springframework.test.AbstractDependencyInjectionSpringContextTests;public class TestDataService extends AbstractDependencyInjectionSpringContextTests {

private DataService dataService;

public void setDataService(DataService dataService) {this.dataService = dataService;

}

@Overrideprotected String[] getConfigLocations() { return new String[]{"classpath:com/targettrust/spring/testing/Spring-beans.xml"};}

@SuppressWarnings("deprecation")public void testDataDoDataService(){

Date d = dataService.getSysDate();Date l = new Date();

Assert.assertEquals(d.getDay(),l.getDay());Assert.assertEquals(d.getMonth(),l.getMonth());Assert.assertEquals(d.getYear(),l.getYear());

}

}

• Exposição de beans•Pode ser: RMI, JAX-RPC, JMS, Hessian, Burlap, Http Invoker e até mesmo EJB.•Para RMI:

•Serializable•Porta na máquina•Abstração sob o RMI

package com.targettrust.spring.remoting;import java.util.Date;public interface HoraService {

public Date getDate();}

package com.targettrust.spring.remoting;import java.util.Calendar;import java.util.Date;public class HoraServiceImpl implements HoraService{ public Date getDate() { return Calendar.getInstance().getTime(); }}



http://www.springframework.org/schema/beans/spring-beans-2.0.xsd"> <bean id="horaService" class="com.targettrust.spring.remoting.HoraServiceImpl” />

<bean class="org.springframework.remoting.rmi.RmiServiceExporter”> <property name="serviceName" value="Target-HoraService"/> <property name="service" ref="horaService"/> <property name="serviceInterface“ value="com.targettrust.spring.remoting.HoraService"/> <property name="registryPort" value="1199"/> </bean></beans>

<?xml version="1.0" encoding="UTF-8"?><beans xmlns=“http://www.springframework.org/schema/beans” xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance” xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd"> <bean id="horaService” class="org.springframework.remoting.rmi.RmiProxyFactoryBean" > <property name="serviceUrl" value="rmi://localhost:1199/Target-HoraService"/> <property name="serviceInterface" value="com.targettrust.spring.remoting.HoraService"/> </bean></beans>

1. Crie um Aspecto para logar todas as chamadas aos dados de um sistema2. Crie um agendamento com JDK Task que de 5 em 5 segundos manda um

e-mail para uma pessoa informando se ouve alguma mudança no sistema.3. Crie um serviço de calculadora e exporte ele via RMI, faça um porgrama

cliente com o suporte de Junit do Spring e suas classes de teste.

spring capitulo 05

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