Added ability for observation data to be sent by email

backend/pom.xml

@@ -21,9 +21,9 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <java.version>1.8</java.version>
-        <kotlin.version>1.2.71</kotlin.version>
+        <kotlin.version>1.3.40</kotlin.version>
         <kotlin.compiler.jvmTarget>1.8</kotlin.compiler.jvmTarget>
-        <spring.version>2.0.6.RELEASE</spring.version>
+        <spring.version>2.1.6.RELEASE</spring.version>
     </properties>
 
     <dependencyManagement>
@@ -67,12 +67,23 @@
         <dependency>
             <groupId>com.fasterxml.jackson.module</groupId>
             <artifactId>jackson-module-kotlin</artifactId>
+            <version>2.9.9</version>
         </dependency>
         <dependency>
             <groupId>org.jetbrains.kotlin</groupId>
             <artifactId>kotlin-stdlib-jdk8</artifactId>
             <version>${kotlin.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-stdlib</artifactId>
+            <version>${kotlin.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-stdlib-jdk7</artifactId>
+            <version>${kotlin.version}</version>
+        </dependency>
         <dependency>
             <groupId>org.jetbrains.kotlin</groupId>
             <artifactId>kotlin-reflect</artifactId>
@@ -96,7 +107,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.datatype</groupId>
             <artifactId>jackson-datatype-joda</artifactId>
-            <version>2.9.5</version>
+            <version>2.9.9</version>
         </dependency>
         <dependency>
             <groupId>org.jadira.usertype</groupId>
@@ -108,6 +119,16 @@
             <artifactId>caffeine</artifactId>
             <version>2.6.2</version>
         </dependency>
+        <dependency>
+            <groupId>org.simplejavamail</groupId>
+            <artifactId>simple-java-mail</artifactId>
+            <version>5.2.0</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jetbrains.kotlinx</groupId>
+            <artifactId>kotlinx-coroutines-core</artifactId>
+            <version>1.3.0-M2</version>
+        </dependency>
 
         <dependency>
             <groupId>org.springframework.boot</groupId>

backend/src/main/kotlin/uk/co/neviyn/observationdatabase/Email.kt

@@ -0,0 +1,48 @@
+package uk.co.neviyn.observationdatabase
+
+import org.joda.time.DateTime
+import org.simplejavamail.email.EmailBuilder
+import org.simplejavamail.mailer.Mailer
+import org.simplejavamail.mailer.MailerBuilder
+import org.slf4j.Logger
+import org.slf4j.LoggerFactory
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.core.env.Environment
+import org.springframework.stereotype.Service
+
+@Service
+class Email {
+    @Autowired
+    lateinit var environment: Environment
+
+    private val logger: Logger = LoggerFactory.getLogger(javaClass)!!
+
+    fun sendObservationData(observations: List<Observation>) {
+        if (observations.isEmpty()) {
+            logger.error("Cannot send observations email containing no observations!")
+            return
+        }
+        if (environment.getProperty("smtp.enabled")!!.toBoolean()) {
+            logger.debug("SMTP is enables")
+            logger.debug("Building CSV file content")
+            logger.debug("Setting up mailer environment")
+            val mailer = createMailer()
+            logger.debug("Constructing email")
+            val email = EmailBuilder.startingBlank()
+                .to("Simulator Team", environment.getProperty("smtp.toaddress"))
+                .withSubject("Observation Session Data")
+                .withPlainText("Attached is the observation data for the session completed ${DateTime.now()}.")
+                .withAttachment("observations.csv", observationsToCSV(observations).toByteArray(), "text/csv")
+                .buildEmail()
+            logger.info("Sending mail to ${email.recipients}")
+            mailer.sendMail(email)
+            logger.debug("Email sent")
+        } else {
+            logger.info("SMTP is not enabled in the configuration, no mail will be sent.")
+        }
+    }
+
+    private fun createMailer(): Mailer = MailerBuilder.withSMTPServer(environment.getProperty("smtp.host"),
+        environment.getProperty("smtp.port")!!.toInt(), environment.getProperty("smtp.username"),
+        environment.getProperty("smtp.password")).buildMailer()
+}

backend/src/main/resources/application.properties

@@ -6,3 +6,9 @@ spring.cache.type=caffeine
 spring.cache.cache-names=observations,charts
 spring.cache.caffeine.spec=maximumSize=500,expireAfterAccess=600s
 management.endpoints.web.exposure.include=health,info,metrics
+smtp.enabled=false
+smtp.server=x
+smtp.port=587
+smtp.username=none
+smtp.password=none
+smtp.toaddress=none

backend/src/test/kotlin/uk/co/neviyn/observationdatabase/RepositoryTest.kt

@@ -1,7 +1,11 @@
 package uk.co.neviyn.observationdatabase
 
-import junit.framework.TestCase.*
 import org.joda.time.LocalDate
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertNotSame
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest

backend/src/test/kotlin/uk/co/neviyn/observationdatabase/controller/GroupSessionControllerTest.kt

@@ -2,7 +2,9 @@ package uk.co.neviyn.observationdatabase.controller
 
 import org.joda.time.LocalDate
 import org.junit.After
-import org.junit.Assert.*
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNotNull
+import org.junit.Assert.assertTrue
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.mockito.ArgumentMatchers.any
@@ -14,6 +16,7 @@ import org.mockito.Mockito.verify
 import org.mockito.junit.MockitoJUnitRunner
 import org.springframework.messaging.simp.SimpMessagingTemplate
 import org.springframework.web.server.ResponseStatusException
+import uk.co.neviyn.observationdatabase.Email
 import uk.co.neviyn.observationdatabase.GroupObservation
 import uk.co.neviyn.observationdatabase.GroupObservationInit
 import uk.co.neviyn.observationdatabase.GroupSessionManager
@@ -28,7 +31,7 @@ import uk.co.neviyn.observationdatabase.SiteRepository
 import uk.co.neviyn.observationdatabase.TrainingType
 import uk.co.neviyn.observationdatabase.Tutor
 import uk.co.neviyn.observationdatabase.TutorRepository
-import java.util.*
+import java.util.Optional
 
 @RunWith(MockitoJUnitRunner::class)
 class GroupSessionControllerTest {
@@ -46,6 +49,8 @@ class GroupSessionControllerTest {
     lateinit var observationRepository: ObservationRepository
     @Mock
     lateinit var personRepository: PersonRepository
+    @Mock
+    lateinit var mailer: Email
 
     @After
     fun tearDown() {

backend/src/test/kotlin/uk/co/neviyn/observationdatabase/controller/ObservationsControllerTest.kt

@@ -1,11 +1,18 @@
 package uk.co.neviyn.observationdatabase.controller
 
-import junit.framework.TestCase.*
 import org.joda.time.LocalDate
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNotNull
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.mockito.*
-import org.mockito.Mockito.*
+import org.mockito.ArgumentMatchers
+import org.mockito.InjectMocks
+import org.mockito.Mock
+import org.mockito.Mockito.doReturn
+import org.mockito.Mockito.times
+import org.mockito.Mockito.verify
 import org.mockito.junit.MockitoJUnitRunner
 import org.springframework.web.server.ResponseStatusException
 import uk.co.neviyn.observationdatabase.NameValue
@@ -24,7 +31,7 @@ import uk.co.neviyn.observationdatabase.SiteRepository
 import uk.co.neviyn.observationdatabase.TrainingType
 import uk.co.neviyn.observationdatabase.Tutor
 import uk.co.neviyn.observationdatabase.TutorRepository
-import java.util.*
+import java.util.Optional
 
 @RunWith(MockitoJUnitRunner::class)
 class ObservationsControllerTest {