Unable to pass parameters to connection class using Scala-Spark on IntelliJ - scala

Question

I have recently completed studying Scala & Spark. I am trying to do an exercise to read data from a table present on Postgres DB using JDBC connection. I created a Scala SBT Project and created a properties file to store all the connection properties.
I have the following properties in connections.properties file:
devHost=xx.xxx.xxx.xxx
devPort=xxxx
devDbName=base
devUserName=username
devPassword=password
gpDriverClass=org.postgresql.Driver
I created a DBManager class where I initialize the connection properties:
import java.io.FileInputStream
import java.util.Properties
class DBManager {
val dbProps = new Properties()
val connectionProperties = new Properties()
dbProps.load(new FileInputStream(connections.properties))
val jdbcDevHostname = dbProps.getProperty("devHost")
val jdbcDevPort = dbProps.getProperty("devPort")
val jdbcDevDatabase = dbProps.getProperty("devDbName")
val jdbcDevUrl = s"jdbc:postgresql://${jdbcDevHostname}:${jdbcDevPort}/${jdbcDevDatabase}?ssl=true&sslfactory=org.postgresql.ssl.NonValidatingFactory" + s",${uname},${pwd}"
connectionProperties.setProperty("Driver",dbProps.getProperty("gpDriverClass"))
connectionProperties.put("user", dbProps.getProperty("devUserName"))
connectionProperties.put("password", dbProps.getProperty("devPassword"))
}
In a Scala Object I am trying to use all these details as below:
import org.apache.spark.sql.SparkSession
import com.gphive.connections.DBManager
object PartitionRetrieval {
def main(args: Array[String]): Unit = {
val dBManager = new DBManager();
val spark = SparkSession.builder().enableHiveSupport().appName("GP_YEARLY_DATA").getOrCreate()
val tabData = spark.read.jdbc(dBManager.jdbcDevUrl,"tableName",connectionProperties)
}
}
I referred this link to create the above code.
When I click on 'build' on the project:
I see that the connections.properties file is not loaded properly in the code I've written.
Could anyone let me know how can I correct the mistake ?