Subsystem Operation Manager

A Subsystem Operation Manager manages parts of a subsystem that are required for it to run.
You can create one for your subsystem with:

private SubsystemOperationManager operationManager = new SubsystemOperationManager("subsystem-name");

And make sure to also create a getter for it so commands and other subsystems can get the instance of it!

public SubsystemOperationManager getOperationManager() {
    return this.operationManager;
}

Now other commands and subsystems can create operations for your operation manager. At any given moment, you can check if these operations are satisfied and your subsystem can operate using:

if (operationManager.allSatisfied()) {
    // Everything is good to go!
} else {
    // One or more of your registered operations isn't enabled. Don't go!
}