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2.1 KiB
Go

package database
import (
"time"
"git.phc.dm.unipi.it/phc/cluster-dashboard/backend/executor"
"git.phc.dm.unipi.it/phc/cluster-dashboard/backend/model"
)
// simpleDB è una implementazione di [database.Database] che tiene giusto una cache in memoria e
// quando il server viene riavviato perde tutte le statistiche che ha accumulato. Più avanti si
// potrebbe pensare di scrivere queste informazioni in un file o usare un vero database.
type simpleDB struct {
Executor executor.Service
// lastUpdate tiene traccia di quando abbiamo aggiornato l'ultima volta tutti i dati
lastUpdate *time.Time
// Nodes is a map from hostname to node info
nodes map[string]model.Node
// Jobs is a map from job id to job info
jobs map[int]model.Job
// The following are maps from hostname to a list of sampled temperatures, used memory, used storage space and network upload and download rate.
temperatureSamples map[string][]model.Sample[float64]
memorySamples map[string][]model.Sample[int64]
storageSamples map[string][]model.Sample[int64]
networkUploadSamples map[string][]model.Sample[int64]
networkDownloadSamples map[string][]model.Sample[int64]
}
func NewSimpleDatabase(ex executor.Service) Database {
return &simpleDB{Executor: ex}
}
func (s *simpleDB) GetNodeStatus(hostname string) (*model.Node, error) {
panic("todo")
}
func (s *simpleDB) GetJobStatus(id int) (*model.Job, error) {
panic("todo")
}
func (s *simpleDB) AllNodes() ([]*model.Node, error) {
panic("todo")
}
func (s *simpleDB) AllJobs() ([]*model.Job, error) {
panic("todo")
}
func (s *simpleDB) QueryTemperatureSamples(from, to time.Time) ([]model.Sample[float64], error) {
panic("todo")
}
func (s *simpleDB) QueryMemorySamples(from, to time.Time) ([]model.Sample[int64], error) {
panic("todo")
}
func (s *simpleDB) QueryStorageSamples(from, to time.Time) ([]model.Sample[int64], error) {
panic("todo")
}
func (s *simpleDB) QueryNetworkUploadSamples(from, to time.Time) ([]model.Sample[int64], error) {
panic("todo")
}
func (s *simpleDB) QueryNetworkDownloadSamples(from, to time.Time) ([]model.Sample[int64], error) {
panic("todo")
}