Kotlin/Javalin, manage configuration files tools? - kotlin

Question

What tools are out there for managing configuration files (per environment) for Kotlin/Javalin applications?
Alternatives to Konf (https://github.com/uchuhimo/konf)?

Answer 1

Here's an example "ConfigTool". You could expand this to create multiple objects and parse multiple files. I can't take full credit for it, I originally adapted it from someone else:
package app.utils;
import app.pojos.DBProps;
import app.pojos.WebAppVars;
import java.io.FileInputStream;
import java.util.Properties;
public final class ConfigTool {
//Create a connection parameter array for storing... connection parameters
private static final DBProps sysParams = new DBProps();
public static void load() {
//Read configuration properties for where the DB is and how to connect, close program if catch exception
Properties cfg_props = new Properties();
try (FileInputStream configfile = new FileInputStream(WebAppVars.configLocation)) {
cfg_props.load(configfile);
sysParams.setDbAddr(cfg_props.getProperty("database.dbAddr"));
sysParams.setDbUser(cfg_props.getProperty("database.dbUser"));
sysParams.setDbPass(cfg_props.getProperty("database.dbPass"));
sysParams.setDbType(cfg_props.getProperty("database.dbType"));
sysParams.setDbName(cfg_props.getProperty("database.dbName"));
sysParams.setDbAuth(cfg_props.getProperty("database.dbAuth"));
//TODO Add more if statements to config tool to support larger array of SQL Servers
if(sysParams.getDbType().equalsIgnoreCase("MSSQL")){
sysParams.setDbConnStr("jdbc:sqlserver://" + sysParams.getDbAddr() + ";databaseName=" + sysParams.getDbName());
sysParams.setDbDriver("com.microsoft.jdbc.sqlserver.SQLServerDriver");
}
}
catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
}
public static DBProps getSysParams(){
return sysParams;
}
}