func NewManager(sources []source_api.Source, sinkManager sinks.ExternalSinkManager, res, bufferDuration time.Duration, c cache.Cache, useModel bool, modelRes time.Duration, align bool) (Manager, error) {
// TimeStore constructor passed to the cluster implementation.
tsConstructor := func() store.TimeStore {
// TODO(afein): determine default analogy of cache duration to Timestore durations.
return store.NewGCStore(store.NewCMAStore(), 5*bufferDuration)
}
var newCluster model.Cluster = nil
if useModel {
newCluster = model.NewCluster(tsConstructor, modelRes)
}
firstSync := time.Now()
if align {
firstSync = firstSync.Truncate(res).Add(res)
}
return &realManager{
sources: sources,
sinkManager: sinkManager,
cache: c,
model: newCluster,
lastSync: firstSync,
resolution: res,
align: align,
decoder: sink_api.NewDecoder(),
sinkStopChan: sinkManager.Sync(),
}, nil
}
// newTimeStore creates a new GCStore and returns it as a TimeStore.
// Meant to be passed to newRealCluster calls in all unit tests.
func newTimeStore() store.TimeStore {
return store.NewGCStore(store.NewCMAStore(), 24*time.Hour)
}