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package sfive
import (
"bytes"
"encoding/json"
"net/http"
"time"
)
func findMaxId(values []dataUpdateDb) int {
maxId := -1
for i := range values {
if values[i].Id > maxId {
maxId = values[i].Id
}
}
return maxId
}
func (self StatsSinkServer) handleForwarding(url string, client *http.Client) {
latestId := 0 // TODO retrieve latest known from server
next:
// TODO forwarding
for {
time.Sleep(500)
updates, err := self.store.GetUpdatesAfter(latestId)
if err != nil {
s5l.Printf("fwd: failed reading updates: %v\n", err)
continue next
}
for i := range updates {
data, err := json.Marshal(updates[i])
if err == nil {
s5l.Printf("fwd: encode failed: %v\n", err)
// TODO retry etc.
continue
}
_, err = client.Post(url, "application/json", bytes.NewBuffer(data))
if err == nil {
latestId = findMaxId(updates)
} else {
s5l.Printf("fwd: post failed: %v\n", err)
// TODO retry etc.
}
}
}
}
func (self StatsSinkServer) RunForwarding(forwardBaseUrl string) {
forwardUrl := forwardBaseUrl + "/updates"
self.handleForwarding(forwardUrl, http.DefaultClient)
}
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