Add a static method to get the yaml file inside web root config

Author: Chamal-Peiris

README.md

@@ -1 +1 @@
-# Note System `Spring-Boot-JPA`
+# Back End For Note System `Spring-Boot-JPA`

note-system-back-end.iml

@@ -19,7 +19,10 @@
       <configuration>
         <setting name="validation-enabled" value="true" />
         <setting name="provider-name" value="Hibernate" />
-        <datasource-mapping />
+        <datasource-mapping>
+          <factory-entry name="entityManagerFactory" />
+          <factory-entry name="note-system-back-end" />
+        </datasource-mapping>
         <naming-strategy-map />
       </configuration>
     </facet>
@@ -79,5 +82,8 @@
     <orderEntry type="library" scope="TEST" name="Maven: org.junit.platform:junit-platform-engine:1.8.2" level="project" />
     <orderEntry type="library" name="Maven: mysql:mysql-connector-java:8.0.29" level="project" />
     <orderEntry type="library" name="Maven: com.google.protobuf:protobuf-java:3.19.4" level="project" />
+    <orderEntry type="library" name="Maven: com.zaxxer:HikariCP:4.0.3" level="project" />
+    <orderEntry type="library" name="Maven: org.slf4j:slf4j-api:1.7.30" level="project" />
+    <orderEntry type="library" name="Maven: org.yaml:snakeyaml:1.30" level="project" />
   </component>
 </module>

pom.xml

@@ -76,6 +76,10 @@
             <artifactId>HikariCP</artifactId>
             <version>4.0.3</version>
         </dependency>
+        <!-- https://mvnrepository.com/artifact/com.github.bmoliveira/snake-yaml -->
+        <!-- https://mvnrepository.com/artifact/org.yaml/snakeyaml -->
+
+
     </dependencies>
 
     <build>

src/main/java/lk/ijse/dep/note/config/JpaConfig.java

@@ -1,20 +1,26 @@
 package lk.ijse.dep.note.config;
 
+import com.zaxxer.hikari.HikariDataSource;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.PropertySource;
 import org.springframework.core.env.Environment;
+import org.springframework.orm.jpa.JpaTransactionManager;
 import org.springframework.orm.jpa.JpaVendorAdapter;
 import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
 import org.springframework.orm.jpa.vendor.Database;
 import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
+import org.springframework.transaction.PlatformTransactionManager;
+import org.springframework.transaction.annotation.EnableTransactionManagement;
 
+import javax.persistence.EntityManagerFactory;
 import javax.sql.DataSource;
 import javax.xml.crypto.Data;
 
 @Configuration
 @PropertySource("classpath:application.yml")
+@EnableTransactionManagement
 public class JpaConfig {
     @Autowired
     private Environment env;
@@ -35,4 +41,19 @@ public JpaVendorAdapter jpaVendorAdapter(){
         jpaVendorAdapter.setDatabase(Database.MYSQL);
         return  jpaVendorAdapter;
     }
+
+    @Bean
+    public DataSource dataSource(){
+       final HikariDataSource hikariDataSource = new HikariDataSource();
+       hikariDataSource.setJdbcUrl(env.getRequiredProperty("hikari.jdbc-url"));
+       hikariDataSource.setUsername(env.getRequiredProperty("hikari.username"));
+       hikariDataSource.setPassword(env.getRequiredProperty("hikari.password"));
+       hikariDataSource.setDriverClassName(env.getRequiredProperty("hikari.driver-classname"));
+       hikariDataSource.setMaximumPoolSize(env.getRequiredProperty("hikari.max-pool-size",Integer.class));
+       return hikariDataSource;
+    }
+
+    public PlatformTransactionManager transactionManager(EntityManagerFactory emf){
+        return new JpaTransactionManager(emf);
+    }
 }

src/main/java/lk/ijse/dep/note/config/WebAppConfig.java

@@ -2,20 +2,29 @@
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 import lk.ijse.dep.note.WebAppInitializer;
+import org.springframework.beans.factory.config.YamlPropertiesFactoryBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
+import org.springframework.core.env.ConfigurableEnvironment;
+import org.springframework.core.env.PropertiesPropertySource;
+import org.springframework.core.io.ClassPathResource;
 import org.springframework.stereotype.Component;
 import org.springframework.web.servlet.config.annotation.EnableWebMvc;
 
+import java.util.Properties;
+
 @Component
 @EnableWebMvc
 @ComponentScan(basePackageClasses = WebAppInitializer.class)
 public class WebAppConfig {
 
+
+
     @Bean
     public PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer(){
-        return new PropertySourcesPlaceholderConfigurer();
+    return  new PropertySourcesPlaceholderConfigurer();
+
     }
     @Bean
     public ObjectMapper objectMapper(){

src/main/java/lk/ijse/dep/note/config/WebRootConfig.java

@@ -1,9 +1,26 @@
 package lk.ijse.dep.note.config;
 
+import org.springframework.beans.factory.config.YamlPropertiesFactoryBean;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
+import org.springframework.core.env.ConfigurableEnvironment;
+import org.springframework.core.env.PropertiesPropertySource;
+import org.springframework.core.io.ClassPathResource;
+
+import java.util.Properties;
 
 @Configuration
 @Import(JpaConfig.class)
 public class WebRootConfig {
+    @Bean
+    public static YamlPropertiesFactoryBean yamlPropertiesFactoryBean(ConfigurableEnvironment env ){
+        YamlPropertiesFactoryBean yamlPropertiesFactoryBean = new YamlPropertiesFactoryBean();
+        yamlPropertiesFactoryBean.setResources( new ClassPathResource("application.yml"));
+        Properties yamlProps = yamlPropertiesFactoryBean.getObject();
+        env.getPropertySources().addLast(new PropertiesPropertySource("yaml",yamlProps));
+        return yamlPropertiesFactoryBean;
+
+
+    }
 }

src/main/resources/application.yml

@@ -1,4 +1,11 @@
-jpa
+jpa:
   show-sql:true
   generate-ddl:true
-  dialect:org.hibernate.dialect.MySQL8Dialect
+  dialect:org.hibernate.dialect.MySQL8Dialect
+
+hikari:
+  jdbc-url:jdbc:mysql//localhost:3306/dep8_notes?createDatabaseIfNotExist=true
+  username:root
+  password:12345678
+  driver-classname:com.mysql.cj.jdbc.Driver
+  max-pool-size:10