// Initializes an in-memory store and generates n transactions each with m
// randomly generated facts that belong to one of the specified domains.
func randMultidomainStorage(domains []string, n, m int) storage.Engine {
engine, _ := origins.Init("memory", nil)
for i := 0; i < m; i++ {
tx, _ := transactor.New(engine, transactor.Options{
AllowDuplicates: true,
})
gen := testutil.NewMultidomainGenerator(domains, tx.ID, n)
origins.Copy(gen, tx)
tx.Commit()
}
return engine
}
// Initializes an in-memory store and generates n transactions each with m
// facts randomly generated from the same dictionary of possible E, A, V values.
// Varying the size of the dictionary relative to the size of the store
// allows to guarantee repeating facts.
func randStorageWRepeats(domain string, n, m, eLen, aLen, vLen int) storage.Engine {
engine, _ := origins.Init("memory", nil)
dictionary := testutil.NewEAVDictionary(eLen, aLen, vLen)
for i := 0; i < m; i++ {
tx, _ := transactor.New(engine, transactor.Options{
AllowDuplicates: true,
})
gen := testutil.NewDictionaryBasedGenerator(dictionary, domain, tx.ID, n)
origins.Copy(gen, tx)
tx.Commit()
}
return engine
}
func setup() storage.Engine {
engine, _ := origins.Init("memory", nil)
data, _ := testutil.Asset("assets/origins.csv")
iter := origins.NewCSVReader(bytes.NewBuffer(data))
tx, _ := transactor.New(engine, transactor.Options{})
// Write the facts.
if _, err := origins.Copy(iter, tx); err != nil {
panic(err)
}
tx.Commit()
return engine
}
Short: "Transacts facts into storage.",
Long: `transact reads facts from stdin or from one or more paths specified paths.`,
Run: func(cmd *cobra.Command, args []string) {
bindStorageFlags(cmd.Flags())
engine := initStorage()
format := viper.GetString("transact_format")
compression := viper.GetString("transact_compression")
domain := viper.GetString("transact_domain")
fake := viper.GetBool("transact_fake")
tx, err := transactor.New(engine, transactor.Options{
DefaultDomain: domain,
})
if err != nil {
logrus.Fatal("transact: error starting transaction:", err)
}
// Register handler to catch interrupt (ctrl+c). The response
// cancels the transaction. A panic recovery is used since facts
// may still be sent on the stream after the channel is closed.
// TODO: improve the cleanup handling.
sig := make(chan os.Signal, 1)
signal.Notify(sig, os.Interrupt, syscall.SIGTERM)
go func() {
<-sig