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javaconfigurationtypesafe

Check if there is no application.conf

How can I check if my Spark application have no application.conf?

I read this conf with:

Config configuracion = ConfigFactory.load();

But when I check:

if (null != configuracion && !configuracion.isEmpty() && !configuracion.entrySet().isEmpty()){
    config_exists = true;
}

It always return config_exists=true.

Thanks!!

Solution

  • The problem is that ConfigFactory.load() loads the system properties. Therefore the resulting Config object is not empty.

    I have a hack for you, there might be a simpler way I don't know about. 

    Config conf = ConfigFactory.load();

// create a config containing only the system properties
Config emptyConfig = ConfigFactory.systemProperties();

// check that the loaded config is not equal to this "empty config"
Boolean isDefinedConfig = ! conf.equals(emptyConfig);