How to manually specify db connection for Quartz JobStoreTX - quartz-scheduler

Question

I'm trying to configure Quartz in clustered mode in a Ktor application.
I want to avoid property file so I'm doing the scheduler initialization programmatically.
This is what I achieved so far:
val jobStore = JobStoreTX()
jobStore.setIsClustered(true)
jobStore.dataSource = "datasourceName" //Here is the issue - I want to inject datasource object, not the name
DirectSchedulerFactory.getInstance().createScheduler(
"DS-SCHEDULER",
"AUTO",
SimpleThreadPool(),
jobStore)
val scheduler = DirectSchedulerFactory.getInstance().getScheduler("DS-SCHEDULER")
scheduler.start()
I see that JobStoreTX class only allows to inject datasource name but I would like to provide a DataSource object because Ktor application does not have a naming service.
Is there any alternative way to achieve this?

Answer 1

Figured out how to solve.
So, given a datasource name "myDs", Quartz JobStoreSupport class will lookup for the datasource by name like this:
DBConnectionManager.getInstance().getConnection(getDataSource())
where getDatasource() is an internal method that returns the datasource name string ("myDs").
So what I had to do was to manually add the connection provider to the DBConnectionManager before initializing the scheduler like this:
DBConnectionManager.getInstance().addConnectionProvider(
"myDs",
HikariCpPoolingConnectionProvider(
"dbDriver",
"dbUrl",
"username",
"password",
10,
"validation Query"
)
)
and then I can initalize the scheduler:
val jobStore = JobStoreTX()
jobStore.setIsClustered(true)
jobStore.dataSource = "myDs
val simpleThreadPool = SimpleThreadPool()
simpleThreadPool.threadCount = 5
DirectSchedulerFactory.getInstance().createScheduler(
"Scheduler Name,
"AUTO",
simpleThreadPool,
jobStore
)
Scheduler Factory is then able to lookup the datasource and getting DB connections.