I have a configuration (config.properties) something like
app.rootDir=
app.reportDir=${app.rootDir}/report
The app.rootDir is not a fixed parameter and it must be initialized by external module. I need keep the ${app.reportDir} keep dynamic reference to ${app.rootDir}.
Use pseudo code to illustrate the problem:
// Init the root dir as '/usr/app'
config.setValue('app.rootDir','/usr/app');
// I need the reportDir to be '/usr/app/report'
String reportDir = config.getValue('app.reportDir');
I can write some codes to get this feature but I'd like to know if there is any existing library do this?
I can use properties, yaml, or json as configuration file type, according to the library availability.
