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package main
import (
"encoding/json"
"errors"
"fmt"
"log"
"os"
"strings"
"github.com/go-redis/redis"
)
type Rpc struct {
Fun string `json:"fun"`
Args []string `json:"args"`
}
func get_redis_client() (*redis.Client, error) {
host, ok := os.LookupEnv("REDIS_HOST")
if !ok {
err := errors.New("Please set REDIS_HOST environment variable")
return nil, err
}
var network = "tcp"
if strings.Contains(host, string(os.PathSeparator)) {
network = "unix"
} else {
host += ":6379"
}
client := redis.NewClient(&redis.Options{
Network: network,
Addr: host,
Password: "", // no password set
DB: 0, // use default DB
})
return client, nil
}
func main() {
log.SetOutput(os.Stdout)
client, err := get_redis_client()
if err != nil {
log.Fatal(err)
}
for {
if result, err := client.BLPop(0, "tasks").Result(); err != nil {
log.Println(err)
} else {
var call Rpc
err := json.Unmarshal([]byte(result[1]), &call)
if err != nil {
log.Println(err)
}
log.Printf("Running %s with %v\n", call.Fun, call.Args)
if err := tasks[call.Fun](call.Args); err != nil {
log.Println(err)
log.Printf("'%s' did not complete\n", call.Fun)
continue
} else {
log.Printf("'%s' completed\n", call.Fun)
if call.Fun == "build_portfolios" {
call.Fun = "build_scenarios"
} else if call.Fun == "build_scenarios" {
call.Fun = "generate_scenarios"
call.Args = call.Args[:len(call.Args)-1]
} else {
continue
}
var call_json []byte
call_json, err := json.Marshal(call)
if err != nil {
fmt.Println(err)
}
if err := client.RPush("tasks", call_json).Err(); err != nil {
log.Println(err)
}
}
}
}
}
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