From e5c6656a524f306f26c07fe231021608303eb32e Mon Sep 17 00:00:00 2001
From: Gustavo Martin Morcuende <gu.martinm@gmail.com>
Date: Fri, 11 Mar 2016 03:46:12 +0100
Subject: [PATCH] Emails with Spring

---
 SpringJava/Emails/pom.xml                          | 220 +++++++++++++++++++++
 .../emails/services/EmailNotificationService.java  |   7 +
 .../impl/EmailNotificationServiceImpl.java         |  54 +++++
 .../spring-configuration/spring-configuration.xml  |  40 ++++
 .../src/main/resources/templates/email-template.vm |  21 ++
 5 files changed, 342 insertions(+)
 create mode 100644 SpringJava/Emails/pom.xml
 create mode 100644 SpringJava/Emails/src/main/java/de/spring/emails/services/EmailNotificationService.java
 create mode 100644 SpringJava/Emails/src/main/java/de/spring/emails/services/impl/EmailNotificationServiceImpl.java
 create mode 100644 SpringJava/Emails/src/main/resources/spring-configuration/spring-configuration.xml
 create mode 100644 SpringJava/Emails/src/main/resources/templates/email-template.vm

diff --git a/SpringJava/Emails/pom.xml b/SpringJava/Emails/pom.xml
new file mode 100644
index 0000000..0a8ea1d
--- /dev/null
+++ b/SpringJava/Emails/pom.xml
@@ -0,0 +1,220 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<groupId>de.spring.emails</groupId>
+	<artifactId>emails-spring</artifactId>
+	<version>1.0-SNAPSHOT</version>
+	<name>emails-spring</name>
+	<url>http://gumartinm.name</url>
+	<description>Sending emails with Spring Framework</description>
+	<organization>
+		<name>Gustavo Martin Morcuende</name>
+		<url>http://www.gumartinm.name</url>
+	</organization>
+	<scm>
+		<developerConnection>scm:git:http://git.gumartinm.name/SpringJava/Emails</developerConnection>
+		<url>http://git.gumartinm.name/SpringJava/Emails</url>
+	</scm>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+		<spring.version>4.2.5.RELEASE</spring.version>
+	</properties>
+
+	<profiles>
+		<profile>
+			<id>release</id>
+			<properties>
+				<environment.profile>release</environment.profile>
+			</properties>
+			<activation>
+				<activeByDefault>true</activeByDefault>
+			</activation>
+		</profile>
+	</profiles>
+
+	<dependencies>
+		<!-- 1/3 Required dependency for log4j 2 with slf4j: binding between log4j 
+			2 and slf4j -->
+		<dependency>
+			<groupId>org.apache.logging.log4j</groupId>
+			<artifactId>log4j-slf4j-impl</artifactId>
+			<version>2.3</version>
+		</dependency>
+		<!-- 2/3 Required dependency for log4j 2 with slf4j: log4j 2 maven plugin 
+			(it is the log4j 2 implementation) -->
+		<dependency>
+			<groupId>org.apache.logging.log4j</groupId>
+			<artifactId>log4j-core</artifactId>
+			<version>2.3</version>
+		</dependency>
+		<!-- 3/3 Required dependency for getting rid of commons logging. This is 
+			the BRIDGE (no binding) between Jakarta Commons Logging (used by Spring) 
+			and whatever I am using for logging (in this case I am using log4j 2) See: 
+			http://www.slf4j.org/legacy.html We need exclusions in every dependency using 
+			Jakarta Commons Logging (see Spring dependencies below) -->
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>jcl-over-slf4j</artifactId>
+			<version>1.7.12</version>
+		</dependency>
+		<dependency>
+			<groupId>cglib</groupId>
+			<artifactId>cglib</artifactId>
+			<version>2.2.2</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-context</artifactId>
+			<version>${spring.version}</version>
+			<!-- Required dependency for getting rid of commons logging and use my 
+				own logging library (in my case I decided to use log4j 2 under slf4j) -->
+			<exclusions>
+				<exclusion>
+					<groupId>commons-logging</groupId>
+					<artifactId>commons-logging</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+
+		<!-- Required dependency for VelocityEngineUtils -->
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-context-support</artifactId>
+			<version>${spring.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.velocity</groupId>
+			<artifactId>velocity</artifactId>
+			<version>1.7</version>
+		</dependency>
+		<dependency>
+		    <groupId>velocity-tools</groupId>
+		    <artifactId>velocity-tools</artifactId>
+		    <version>2.0-beta1</version>
+		</dependency>
+		
+		<!-- Required dependencies for SMTP client -->
+		<dependency>
+			<groupId>javax.mail</groupId>
+			<artifactId>mail</artifactId>
+			<version>1.5.0-b01</version>
+		</dependency>
+		<dependency>
+		    <groupId>javax.activation</groupId>
+		    <artifactId>activation</artifactId>
+		    <version>1.1.1</version>
+		</dependency>
+
+		<!-- Unitary and integration tests -->
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<version>4.12</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-test</artifactId>
+			<version>${spring.version}</version>
+			<scope>test</scope>
+			<!-- Required dependency for getting rid of commons logging and use my 
+				own logging library (in my case I decided to use log4j 2 under slf4j) -->
+			<exclusions>
+				<exclusion>
+					<groupId>commons-logging</groupId>
+					<artifactId>commons-logging</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+		<dependency>
+			<groupId>org.mockito</groupId>
+			<artifactId>mockito-core</artifactId>
+			<version>2.0.43-beta</version>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+
+		<pluginManagement>
+			<plugins>
+				<plugin>
+					<groupId>org.apache.maven.plugins</groupId>
+					<artifactId>maven-surefire-plugin</artifactId>
+					<version>2.19.1</version>
+				</plugin>
+				<plugin>
+					<groupId>org.apache.maven.plugins</groupId>
+					<artifactId>maven-failsafe-plugin</artifactId>
+					<version>2.19.1</version>
+				</plugin>
+			</plugins>
+		</pluginManagement>
+
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>3.5.1</version>
+				<configuration>
+					<source>1.8</source>
+					<target>1.8</target>
+					<encoding>${project.build.sourceEncoding}</encoding>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-resources-plugin</artifactId>
+				<version>2.7</version>
+				<configuration>
+					<encoding>${project.build.sourceEncoding}</encoding>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-jar-plugin</artifactId>
+				<version>2.6</version>
+				<configuration>
+					<archive>
+						<manifestEntries>
+							<Specification-Title>${project.description}</Specification-Title>
+							<Specification-Version>${project.version}</Specification-Version>
+							<Specification-Vendor>${project.organization.name}</Specification-Vendor>
+							<Implementation-Title>${project.description}</Implementation-Title>
+							<Implementation-Version>${project.version}</Implementation-Version>
+							<Implementation-Vendor>${project.organization.name}</Implementation-Vendor>
+						</manifestEntries>
+					</archive>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+				<configuration>
+					<excludes>
+						<exclude>**/*IntegrationTest.java</exclude>
+					</excludes>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-failsafe-plugin</artifactId>
+				<executions>
+					<execution>
+						<goals>
+							<goal>integration-test</goal>
+							<goal>verify</goal>
+						</goals>
+					</execution>
+				</executions>
+				<configuration>
+					<includes>
+						<include>**/*IntegrationTest.java</include>
+					</includes>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+</project>
diff --git a/SpringJava/Emails/src/main/java/de/spring/emails/services/EmailNotificationService.java b/SpringJava/Emails/src/main/java/de/spring/emails/services/EmailNotificationService.java
new file mode 100644
index 0000000..a7643da
--- /dev/null
+++ b/SpringJava/Emails/src/main/java/de/spring/emails/services/EmailNotificationService.java
@@ -0,0 +1,7 @@
+package de.spring.emails.services;
+
+
+public interface EmailNotificationService {
+
+	public void sendEmail();
+}
diff --git a/SpringJava/Emails/src/main/java/de/spring/emails/services/impl/EmailNotificationServiceImpl.java b/SpringJava/Emails/src/main/java/de/spring/emails/services/impl/EmailNotificationServiceImpl.java
new file mode 100644
index 0000000..9223cd5
--- /dev/null
+++ b/SpringJava/Emails/src/main/java/de/spring/emails/services/impl/EmailNotificationServiceImpl.java
@@ -0,0 +1,54 @@
+package de.spring.emails.services.impl;
+
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.mail.internet.InternetAddress;
+import javax.mail.internet.MimeMessage;
+
+import org.apache.velocity.app.VelocityEngine;
+import org.springframework.mail.javamail.JavaMailSender;
+import org.springframework.mail.javamail.MimeMessageHelper;
+import org.springframework.mail.javamail.MimeMessagePreparator;
+import org.springframework.ui.velocity.VelocityEngineUtils;
+
+import de.spring.emails.services.EmailNotificationService;
+
+public class EmailNotificationServiceImpl implements EmailNotificationService {
+	private final JavaMailSender mailSender;
+    private final VelocityEngine velocityEngine;
+	
+    public EmailNotificationServiceImpl(JavaMailSender mailSender, VelocityEngine velocityEngine) {
+    	this.mailSender = mailSender;
+    	this.velocityEngine = velocityEngine;
+    }
+    
+	@Override
+	public void sendEmail() {
+	      final MimeMessagePreparator preparator = new MimeMessagePreparator() {
+	    	  
+	    	  public void prepare(MimeMessage mimeMessage) throws Exception {
+	    		  final MimeMessageHelper message = new MimeMessageHelper(mimeMessage);
+		          message.setTo("toemail@example.com");
+		          message.setBcc("bccemail@example.com");
+		          message.setFrom(new InternetAddress("fromemail@example.com") );
+		          message.setSubject("New funny alert");
+
+		          final LocalDateTime dateTime = LocalDateTime.now();
+		          message.setSentDate(Date.from(dateTime.atZone(ZoneId.systemDefault()).toInstant()));
+		          Map model = new HashMap<>();	             
+		          model.put("newMessage", "");
+		             
+		          final String text = VelocityEngineUtils.mergeTemplateIntoString(
+		        		  velocityEngine, "templates/email-template.vm", "UTF-8", model);
+		          message.setText(text, true);		       
+	    	  }
+	      };
+	      
+	      mailSender.send(preparator);
+	}
+
+}
diff --git a/SpringJava/Emails/src/main/resources/spring-configuration/spring-configuration.xml b/SpringJava/Emails/src/main/resources/spring-configuration/spring-configuration.xml
new file mode 100644
index 0000000..fd0aa8e
--- /dev/null
+++ b/SpringJava/Emails/src/main/resources/spring-configuration/spring-configuration.xml
@@ -0,0 +1,40 @@
+<?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:context="http://www.springframework.org/schema/context"
+  xmlns:util="http://www.springframework.org/schema/util"
+
+  xsi:schemaLocation="http://www.springframework.org/schema/beans 
+                      http://www.springframework.org/schema/beans/spring-beans.xsd
+                      http://www.springframework.org/schema/context 
+                      http://www.springframework.org/schema/context/spring-context.xsd
+                      http://www.springframework.org/schema/util 
+                      http://www.springframework.org/schema/util/spring-util.xsd">
+
+    <!-- Searches for beans in packages (instead of XML configuration we can use in this way annotations like @Service, @Endpoint, etc, etc)  -->
+    <context:component-scan base-package="de.spring.emails"/>
+
+	<bean id="smtpSession" class="org.springframework.jndi.JndiObjectFactoryBean">
+		<property name="jndiName" value="java:comp/env/mail/Session" />
+	</bean>
+	<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
+		<property name="session" ref="smtpSession" />
+	</bean>  
+
+	<bean id="velocityEngine"
+		class="org.springframework.ui.velocity.VelocityEngineFactoryBean">
+		<property name="velocityProperties">
+			<value>
+				resource.loader=class
+				class.resource.loader.class=org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader
+			</value>
+		</property>
+	</bean>
+
+	<bean id="emailNotificationService"
+		class="de.spring.emails.services.impl.EmailNotificationServiceImpl">
+		<constructor-arg ref="mailSender" />
+		<constructor-arg ref="velocityEngine" />
+	</bean>
+
+</beans>
diff --git a/SpringJava/Emails/src/main/resources/templates/email-template.vm b/SpringJava/Emails/src/main/resources/templates/email-template.vm
new file mode 100644
index 0000000..cd3f34e
--- /dev/null
+++ b/SpringJava/Emails/src/main/resources/templates/email-template.vm
@@ -0,0 +1,21 @@
+<html>
+	<body>
+		<h3>Dears all</h3>
+		<p>
+			From - ${newMessage.name} / ${newMessage.email} 
+		</p>
+		<h3>
+			Something new and exciting.
+		</h3>
+		<p>
+			${newMessage.metadataLine}
+		</p>
+		<h3>
+			For further information.
+		</h3>
+		<p>
+			${newMessage.message}
+		</p>
+	</body>
+ 
+</html>
\ No newline at end of file
-- 
2.1.4