Using Prototype scope to create DataSource - spring

Question

I'm trying to create a Prototyped Scoped Spring bean using the given configuration. The details for url, username, password, driver will be determined at runtime. Here's my configuration:
#Configuration
class Cfg {
#Bean
public Function<DataSourcePropertiesMap, DriverManagerDataSource> functionOfDriverMgrDS() {
return this::driverManagerDataSource;
}
#Lazy
#Bean
#Scope(value = ConfigurableBeanFactory.SCOPE_PROTOTYPE)
public DriverManagerDataSource driverManagerDataSource(DataSourcePropertiesMap dbPropsMap) {
var ds = new DriverManagerDataSource(dbPropsMap.getDbURL(), dbPropsMap.getDbUsername(), dbPropsMap.getDbPassword());
ds.setDriverClassName(dbPropsMap.getDbDriver());
return ds;
}
}
And the DataSourcePropertiesMap is simply a container for the four arguments as below:
#Getter
#AllArgsConstructor
public class DataSourcePropertiesMap {
#NonNull private final String dbURL;
#NonNull private final String dbUsername;
#NonNull private final String dbPassword;
#NonNull private final String dbDriver;
}
Whenever, I boot the application it throws the following exception:
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'healthContributorRegistry' defined in class path resource [org/springframework/boot/actuate/autoconfigure/health/HealthEndpointConfiguration.class]: Unsatisfied dependency expressed through method 'healthContributorRegistry' parameter 2; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'dbHealthContributor' defined in class path resource [org/springframework/boot/actuate/autoconfigure/jdbc/DataSourceHealthContributorAutoConfiguration.class]: Unsatisfied dependency expressed through method 'dbHealthContributor' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'driverManagerDataSource' defined in class path resource [Cfg.class]: Unsatisfied dependency expressed through method 'driverManagerDataSource' parameter 0; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'DataSourcePropertiesMap' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}
Why Spring still requires arguments for DriverManagerDataSource with valid driver class for Prototyped Scoped beans. My assumption is it will register a bean someway and create a new instance whenever a call is made with the arguments. If I create a default bean of type DataSourcePropertiesMap with dummy values it requires a valid driverclass.

Answer 1

Editing my original answer since I have not seen this part of the question
The details for url, username, password, driver will be determined at
runtime.
As of spring boot 2.x there is still no automatic way of loading properties on runntime. You would have to manually parse the file and read those properties inside this prototype bean method.