Change datasource configuration and remove driver class from properties.

src/main/java/eu/dnetlib/developers/configuration/DataSourceConfig.java

@@ -1,6 +1,7 @@
 package eu.dnetlib.developers.configuration;
 
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.jdbc.DataSourceBuilder;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.jdbc.datasource.DriverManagerDataSource;
@@ -19,11 +20,9 @@ public class DataSourceConfig {
 
     @Bean
     public DataSource dataSource() {
-        DriverManagerDataSource dataSource = new DriverManagerDataSource();
+        return DataSourceBuilder.create()
-        dataSource.setDriverClassName(this.datasource.getDriver());
+                .url(this.datasource.getUrl())
-        dataSource.setUrl(this.datasource.getUrl());
+                .username(this.datasource.getUsername())
-        dataSource.setUsername(this.datasource.getUsername());
+                .password(this.datasource.getPassword()).build();
-        dataSource.setPassword(this.datasource.getPassword());
-        return dataSource;
     }
 }

src/main/java/eu/dnetlib/developers/configuration/Datasource.java

@@ -1,7 +1,6 @@
 package eu.dnetlib.developers.configuration;
 
 public class Datasource {
-    private String driver;
     private String url;
     private String username;
     private String password;
@@ -9,14 +8,6 @@ public class Datasource {
     public Datasource() {
     }
 
-    public String getDriver() {
-        return driver;
-    }
-
-    public void setDriver(String driver) {
-        this.driver = driver;
-    }
-
     public String getUrl() {
         return url;
     }

src/main/java/eu/dnetlib/developers/services/DeployService.java

@@ -22,9 +22,7 @@ public class DeployService {
 
     @PostConstruct
     public void checkProperties() {
-        if (properties.getDatasource().getDriver() == null || properties.getDatasource().getDriver().isEmpty()) {
+        if (properties.getDatasource().getUrl() == null || properties.getDatasource().getUrl().isEmpty()) {
-            throw new RuntimeException("developers.datasource.driver is missing!");
-        } else if (properties.getDatasource().getUrl() == null || properties.getDatasource().getUrl().isEmpty()) {
             throw new RuntimeException("developers.datasource.url is missing!");
         } else if (properties.getIssuer() == null || properties.getIssuer().isEmpty()) {
             throw new RuntimeException("developers.issuer is missing!");
@@ -33,7 +31,6 @@ public class DeployService {
 
     public Map<String, String> getProperties() {
         Map<String, String> response = new HashMap<>();
-        response.put("developers.datasource.driver", properties.getDatasource().getDriver());
         response.put("developers.datasource.url", properties.getDatasource().getUrl());
         response.put("developers.datasource.username", properties.getDatasource().getUsername());
         response.put("developers.datasource.password", properties.getDatasource().getPassword());

src/main/resources/developers.properties

@@ -1,6 +1,3 @@
-developers.datasource.driver=org.postgresql.Driver
-spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
-
 ## API Documentation Properties
 api.title = Developers API
 api.description = Developers API includes authentication methods and provides functionalities to manage OpenAIRE Dynamic AAI APIs.