Working two-source data binding

Finally!!

Relevant reading:
https://medium.com/@joeclever/using-multiple-datasources-with-spring-boot-and-spring-data-6430b00c02e7
https://scattercode.co.uk/2016/01/05/multiple-databases-with-spring-boot-and-spring-data-jpa/
Application settings is not implicitely added to new data source:
spring-projects/spring-boot#3654

vent-backend/application.yaml

@@ -14,18 +14,25 @@
 
 #spring.jpa.database=default
 
-datasource:
-  vent:
-    jdbc-url: jdbc:mysql://172.17.0.2:3306/protus?verifyServerCertificate=false&useSSL=true
-    #url: jdbc:mysql://172.17.0.2:3306/protus?verifyServerCertificate=false&useSSL=true
-    username: root
-    password: stockli
-    # driver-class-name: com.mysql.jdbc.Driver
     # validation-query: select 1
-  protus:
-    jdbc-url: jdbc:mysql://172.17.0.2:3306/vent?verifyServerCertificate=false&useSSL=true
-    #url: jdbc:mysql://172.17.0.2:3306/vent?verifyServerCertificate=false&useSSL=true
-    username: root
-    password: stockli
-    # driver-class-name: com.mysql.jdbc.Driver
-    # validation-query: select 1
+
+spring:
+  datasource:
+    vent:
+      jdbc-url: jdbc:mysql://172.17.0.2:3306/vent?verifyServerCertificate=false&useSSL=true
+      #url: jdbc:mysql://172.17.0.2:3306/protus?verifyServerCertificate=false&useSSL=true
+      username: root
+      password: stockli
+      driver-class-name: com.mysql.jdbc.Driver
+      # validation-query: select 1
+    protus:
+      jdbc-url: jdbc:mysql://172.17.0.2:3306/protus?verifyServerCertificate=false&useSSL=true
+      #url: jdbc:mysql://172.17.0.2:3306/vent?verifyServerCertificate=false&useSSL=true
+      username: root
+      password: stockli
+      driver-class-name: com.mysql.jdbc.Driver
+  jpa:
+    hibernate:
+      ddl-auto: update
+      naming:
+        implicit-strategy: default #org.springframework.boot.orm.jpa.hibernate.SpringNamingStrategy

vent-backend/src/main/kotlin/META-INF/persistence.xml

@@ -3,21 +3,21 @@
 
     <persistence-unit name="NewPersistenceUnit">
         <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
-        <class>com.hernil.vent.protus.ActionTypeEntity</class>
-        <class>com.hernil.vent.protus.CoursesEntity</class>
-        <class>com.hernil.vent.protus.LearnersEntity</class>
-        <class>com.hernil.vent.protus.LearnersAnswersEntity</class>
-        <class>com.hernil.vent.protus.LessonsEntity</class>
-        <class>com.hernil.vent.protus.MessagesEntity</class>
-        <class>com.hernil.vent.protus.OfferedAnswersEntity</class>
-        <class>com.hernil.vent.protus.ResursEntity</class>
-        <class>com.hernil.vent.protus.SessionEntity</class>
-        <class>com.hernil.vent.protus.SettingsEntity</class>
-        <class>com.hernil.vent.protus.TagsEntity</class>
-        <class>com.hernil.vent.protus.TeachersEntity</class>
-        <class>com.hernil.vent.protus.TestEntity</class>
-        <class>com.hernil.vent.protus.UnitsEntity</class>
-        <class>com.hernil.vent.protus.UsersActionEntity</class>
+        <class>com.hernil.vent.protus.domain.ActionTypeEntity</class>
+        <class>com.hernil.vent.protus.domain.CoursesEntity</class>
+        <class>com.hernil.vent.protus.domain.LearnersEntity</class>
+        <class>com.hernil.vent.protus.domain.LearnersAnswersEntity</class>
+        <class>com.hernil.vent.protus.domain.LessonsEntity</class>
+        <class>com.hernil.vent.protus.domain.MessagesEntity</class>
+        <class>com.hernil.vent.protus.domain.OfferedAnswersEntity</class>
+        <class>com.hernil.vent.protus.domain.ResursEntity</class>
+        <class>com.hernil.vent.protus.domain.SessionEntity</class>
+        <class>com.hernil.vent.protus.domain.SettingsEntity</class>
+        <class>com.hernil.vent.protus.domain.TagsEntity</class>
+        <class>com.hernil.vent.protus.domain.TeachersEntity</class>
+        <class>com.hernil.vent.protus.domain.TestEntity</class>
+        <class>com.hernil.vent.protus.domain.UnitsEntity</class>
+        <class>com.hernil.vent.protus.domain.UsersActionEntity</class>
         <properties>
             <property name="hibernate.connection.url" value="jdbc:mysql://172.17.0.2:3306/vent"/>
             <property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>

vent-backend/src/main/kotlin/com/hernil/vent/ProtusConfig.java

@@ -0,0 +1,49 @@
+package com.hernil.vent;
+
+import javax.persistence.EntityManagerFactory;
+import javax.sql.DataSource;
+
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.jdbc.DataSourceBuilder;
+import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+import org.springframework.orm.jpa.JpaTransactionManager;
+import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
+import org.springframework.transaction.PlatformTransactionManager;
+import org.springframework.transaction.annotation.EnableTransactionManagement;
+
+@Configuration
+@EnableTransactionManagement
+@EnableJpaRepositories(
+        entityManagerFactoryRef = "protusEntityManagerFactory",
+        transactionManagerRef = "protusTransactionManager",
+        basePackages = { "com.hernil.vent.protus" })
+public class ProtusConfig {
+
+    @Bean(name = "protusDataSource")
+    @ConfigurationProperties(prefix="spring.datasource.protus")
+    public DataSource protusDataSource() {
+        return DataSourceBuilder.create().build();
+    }
+
+    @Bean(name = "protusEntityManagerFactory")
+    public LocalContainerEntityManagerFactoryBean protusEntityManagerFactory(
+            EntityManagerFactoryBuilder builder,
+            @Qualifier("protusDataSource") DataSource protusDataSource) {
+        return builder
+                .dataSource(protusDataSource)
+                .packages("com.hernil.vent.protus")
+                .persistenceUnit("protus")
+                .build();
+    }
+
+    @Bean(name = "protusTransactionManager")
+    public PlatformTransactionManager protusTransactionManager(
+            @Qualifier("protusEntityManagerFactory") EntityManagerFactory protusEntityManagerFactory) {
+        return new JpaTransactionManager(protusEntityManagerFactory);
+    }
+
+}

vent-backend/src/main/kotlin/com/hernil/vent/VentConfig.java

@@ -0,0 +1,54 @@
+package com.hernil.vent;
+
+import javax.persistence.EntityManagerFactory;
+import javax.sql.DataSource;
+
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.boot.autoconfigure.orm.jpa.JpaProperties;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.jdbc.DataSourceBuilder;
+import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Primary;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+import org.springframework.orm.jpa.JpaTransactionManager;
+import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
+import org.springframework.transaction.PlatformTransactionManager;
+import org.springframework.transaction.annotation.EnableTransactionManagement;
+
+@Configuration
+@EnableTransactionManagement
+@EnableJpaRepositories(
+        entityManagerFactoryRef = "entityManagerFactory",
+        basePackages = {"com.hernil.vent.application"})
+public class VentConfig {
+
+    @Primary
+    @Bean(name = "dataSource")
+    @ConfigurationProperties(prefix="spring.datasource.vent")
+    public DataSource dataSource() {
+        return DataSourceBuilder.create().build();
+    }
+
+    @Primary
+    @Bean(name = "entityManagerFactory")
+    public LocalContainerEntityManagerFactoryBean entityManagerFactory(
+    EntityManagerFactoryBuilder builder, JpaProperties jpaProperties,
+    @Qualifier("dataSource") DataSource dataSource) {
+        return builder
+                .dataSource(dataSource)
+                .packages("com.hernil.vent.application")
+                .persistenceUnit("vent")
+                .properties(jpaProperties.getHibernateProperties("dataSource"))
+                .build();
+    }
+
+    @Primary
+    @Bean(name = "transactionManager")
+    public PlatformTransactionManager transactionManager(
+    @Qualifier("entityManagerFactory") EntityManagerFactory entityManagerFactory) {
+        return new JpaTransactionManager(entityManagerFactory);
+    }
+
+}

vent-backend/src/main/kotlin/com/hernil/vent/controllers/CourseController.kt → vent-backend/src/main/kotlin/com/hernil/vent/application/controllers/CourseController.kt

@@ -1,6 +1,6 @@
-package com.hernil.vent.controllers
+package com.hernil.vent.application.controllers
 
-import com.hernil.vent.domain.CourseRepository
+import com.hernil.vent.application.domain.CourseRepository
 import org.springframework.web.bind.annotation.*
 
 @RestController

vent-backend/src/main/kotlin/com/hernil/vent/controllers/DataController.kt → vent-backend/src/main/kotlin/com/hernil/vent/application/controllers/DataController.kt

@@ -1,7 +1,7 @@
-package com.hernil.vent.controllers
+package com.hernil.vent.application.controllers
 
-import com.hernil.vent.domain.Data
-import com.hernil.vent.services.DataRepository
+import com.hernil.vent.application.domain.Data
+import com.hernil.vent.application.services.DataRepository
 import org.springframework.web.bind.annotation.*
 
 @RestController

vent-backend/src/main/kotlin/com/hernil/vent/controllers/GreetingsController.kt → vent-backend/src/main/kotlin/com/hernil/vent/application/controllers/GreetingsController.kt

@@ -1,7 +1,7 @@
-package com.hernil.vent.controllers
+package com.hernil.vent.application.controllers
 
-import com.hernil.vent.domain.Greeting
-import com.hernil.vent.services.DataRepository
+import com.hernil.vent.application.domain.Greeting
+import com.hernil.vent.application.services.DataRepository
 import org.springframework.web.bind.annotation.CrossOrigin
 import org.springframework.web.bind.annotation.GetMapping
 import org.springframework.web.bind.annotation.RequestParam

vent-backend/src/main/kotlin/com/hernil/vent/controllers/StudentController.kt → vent-backend/src/main/kotlin/com/hernil/vent/application/controllers/StudentController.kt

@@ -1,7 +1,6 @@
-package com.hernil.vent.controllers
+package com.hernil.vent.application.controllers
 
-import com.hernil.vent.domain.StudentRepository
-import com.hernil.vent.protus.LearnersRepository
+import com.hernil.vent.protus.domain.LearnersRepository
 import org.springframework.web.bind.annotation.*
 
 @RestController

vent-backend/src/main/kotlin/com/hernil/vent/domain/Course.kt → vent-backend/src/main/kotlin/com/hernil/vent/application/domain/Course.kt

@@ -1,10 +1,12 @@
-package com.hernil.vent.domain
+package com.hernil.vent.application.domain
 
-import com.hernil.vent.domain.mappers.CourseStudents
+import com.hernil.vent.application.domain.mappers.CourseStudents
 import org.springframework.data.jpa.repository.JpaRepository
+import org.springframework.stereotype.Repository
 import javax.persistence.*
 
 @Entity
+//@Table(name = "course")
 data class Course(@Id
                   @GeneratedValue(strategy = GenerationType.AUTO)
                   val id: Long = 0,
@@ -15,4 +17,5 @@ data class Course(@Id
 ) {
 }
 
+@Repository
 interface CourseRepository : JpaRepository<Course, Long>

vent-backend/src/main/kotlin/com/hernil/vent/domain/Data.kt → vent-backend/src/main/kotlin/com/hernil/vent/application/domain/Data.kt

@@ -1,8 +1,9 @@
-package com.hernil.vent.domain
+package com.hernil.vent.application.domain
 
 import javax.persistence.*
 
 @Entity
+@Table(name = "data")
 data class Data(val name: String = "",
                 @ElementCollection
                 val data: List<Double> = listOf(0.0),

vent-backend/src/main/kotlin/com/hernil/vent/domain/Greeting.kt → vent-backend/src/main/kotlin/com/hernil/vent/application/domain/Greeting.kt

@@ -1,3 +1,3 @@
-package com.hernil.vent.domain
+package com.hernil.vent.application.domain
 
 data class Greeting(val id: Long, val content: String)

vent-backend/src/main/kotlin/com/hernil/vent/domain/Person.kt → vent-backend/src/main/kotlin/com/hernil/vent/application/domain/Person.kt

@@ -1,4 +1,4 @@
-package com.hernil.vent.domain
+package com.hernil.vent.application.domain
 
 open class Person(open val name: String) {
     fun test() {

vent-backend/src/main/kotlin/com/hernil/vent/domain/Student.kt → vent-backend/src/main/kotlin/com/hernil/vent/application/domain/Student.kt

@@ -1,7 +1,8 @@
-package com.hernil.vent.domain
+package com.hernil.vent.application.domain
 
-import com.hernil.vent.domain.mappers.CourseStudents
+import com.hernil.vent.application.domain.mappers.CourseStudents
 import org.springframework.data.jpa.repository.JpaRepository
+import org.springframework.stereotype.Repository
 import javax.persistence.*
 
 @Entity
@@ -14,4 +15,5 @@ data class Student(@Id
 ) : Person(name) {
 }
 
+@Repository
 interface StudentRepository : JpaRepository<Student, Long>

vent-backend/src/main/kotlin/com/hernil/vent/domain/Teacher.kt → vent-backend/src/main/kotlin/com/hernil/vent/application/domain/Teacher.kt

@@ -1,4 +1,4 @@
-package com.hernil.vent.domain
+package com.hernil.vent.application.domain
 
 import javax.persistence.Entity
 import javax.persistence.GeneratedValue

vent-backend/src/main/kotlin/com/hernil/vent/domain/mappers/CourseStudents.kt → vent-backend/src/main/kotlin/com/hernil/vent/application/domain/mappers/CourseStudents.kt

@@ -1,9 +1,9 @@
-package com.hernil.vent.domain.mappers
+package com.hernil.vent.application.domain.mappers
 
 import com.fasterxml.jackson.annotation.JsonIgnore
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties
-import com.hernil.vent.domain.Course
-import com.hernil.vent.domain.Student
+import com.hernil.vent.application.domain.Course
+import com.hernil.vent.application.domain.Student
 import java.io.Serializable
 import javax.persistence.*
 

vent-backend/src/main/kotlin/com/hernil/vent/application/services/DataRepository.kt

@@ -0,0 +1,8 @@
+package com.hernil.vent.application.services
+
+import com.hernil.vent.application.domain.Data
+import org.springframework.data.jpa.repository.JpaRepository
+import org.springframework.stereotype.Repository
+
+@Repository
+interface DataRepository : JpaRepository<Data, Long>

vent-backend/src/main/kotlin/com/hernil/vent/protus/ActionTypeEntity.kt → vent-backend/src/main/kotlin/com/hernil/vent/protus/domain/ActionTypeEntity.kt

@@ -1,4 +1,4 @@
-package com.hernil.vent.protus
+package com.hernil.vent.protus.domain
 
 import javax.persistence.*
 

vent-backend/src/main/kotlin/com/hernil/vent/protus/CoursesEntity.kt → vent-backend/src/main/kotlin/com/hernil/vent/protus/domain/CoursesEntity.kt

@@ -1,4 +1,4 @@
-package com.hernil.vent.protus
+package com.hernil.vent.protus.domain
 
 import javax.persistence.*
 

vent-backend/src/main/kotlin/com/hernil/vent/protus/LearnersAnswersEntity.kt → vent-backend/src/main/kotlin/com/hernil/vent/protus/domain/LearnersAnswersEntity.kt

@@ -1,4 +1,4 @@
-package com.hernil.vent.protus
+package com.hernil.vent.protus.domain
 
 import javax.persistence.*
 

vent-backend/src/main/kotlin/com/hernil/vent/protus/LearnersEntity.kt → vent-backend/src/main/kotlin/com/hernil/vent/protus/domain/LearnersEntity.kt

@@ -1,4 +1,4 @@
-package com.hernil.vent.protus
+package com.hernil.vent.protus.domain
 
 import org.springframework.data.jpa.repository.JpaRepository
 import javax.persistence.*

vent-backend/src/main/kotlin/com/hernil/vent/protus/LessonsEntity.kt → vent-backend/src/main/kotlin/com/hernil/vent/protus/domain/LessonsEntity.kt

@@ -1,4 +1,4 @@
-package com.hernil.vent.protus
+package com.hernil.vent.protus.domain
 
 import javax.persistence.*
 

vent-backend/src/main/kotlin/com/hernil/vent/protus/MessagesEntity.kt → vent-backend/src/main/kotlin/com/hernil/vent/protus/domain/MessagesEntity.kt

@@ -1,4 +1,4 @@
-package com.hernil.vent.protus
+package com.hernil.vent.protus.domain
 
 import javax.persistence.*
 import java.sql.Timestamp

vent-backend/src/main/kotlin/com/hernil/vent/protus/OfferedAnswersEntity.kt → vent-backend/src/main/kotlin/com/hernil/vent/protus/domain/OfferedAnswersEntity.kt

@@ -1,4 +1,4 @@
-package com.hernil.vent.protus
+package com.hernil.vent.protus.domain
 
 import javax.persistence.*