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main.go
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main.go
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package main
import (
"flag"
"fmt"
"net/http"
"strconv"
"strings"
"github.com/geofduf/agg-cache/cache"
"github.com/geofduf/logging"
)
type levels []int
func (l levels) String() string {
var s []string
for _, v := range l {
s = append(s, strconv.Itoa(v))
}
return strings.Join(s, ",")
}
func (l *levels) Set(value string) error {
*l = nil
processed := make(map[int]bool)
for _, level := range strings.Split(value, ",") {
v, err := strconv.Atoi(level)
if err != nil || v <= 0 {
return fmt.Errorf(`"%s" is not a positive integer`, level)
}
if !processed[v] {
*l = append(*l, v)
processed[v] = true
}
}
return nil
}
func main() {
var frequency, logLevel int
var listen string
aggs := levels{300, 1800, 3600, 7200, 14400, 86400}
flag.StringVar(&listen, "listen", "127.0.0.1:8888", "HTTP listening address:port")
flag.IntVar(&logLevel, "logging", 3, "Logging level (1-5)")
flag.IntVar(&frequency, "frequency", 60, "Data processing frequency in seconds")
flag.Var(&aggs, "levels", "Comma-separated list of aggregation levels in seconds")
flag.Parse()
logger := logging.GetLogger()
logger.SetLevel(logLevel)
c, err := cache.NewCache(frequency, aggs)
if err != nil {
logger.Fatal("INI", err.Error())
}
http.HandleFunc("/group/", c.GroupHandler)
http.HandleFunc("/insert", c.InsertHandler)
if err := http.ListenAndServe(listen, nil); err != nil {
logger.Fatal("INI", err.Error())
}
}