// attemptMap turns a single attempt into the map returned by
// GetChildWorkUnits().
func attemptMap(attempt coordinate.Attempt) (map[string]interface{}, error) {
// First try to swap out attempt for its work unit's actual
// active attempt.
workUnit := attempt.WorkUnit()
activeAttempt, err := workUnit.ActiveAttempt()
if err != nil {
return nil, err
}
if activeAttempt != nil {
attempt = activeAttempt
}
// Collect extra data we need and build the result
data, err := attempt.Data()
if err != nil {
return nil, err
}
expires, err := attempt.ExpirationTime()
if err != nil {
return nil, err
}
result := map[string]interface{}{
"work_spec_name": workUnit.WorkSpec().Name(),
"work_unit_key": []byte(workUnit.Name()),
"work_unit_data": data,
"worker_id": attempt.Worker().Name(),
"expires": expires.Unix(),
}
return result, nil
}
