/
database.go
57 lines (51 loc) · 1.14 KB
/
database.go
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package database
import (
"context"
"encoding/json"
"fmt"
"github.com/TylerBrock/colorjson"
clientv3 "go.etcd.io/etcd/client/v3"
"log"
"time"
)
type Database struct {
c *clientv3.Client
}
func (d *Database) Connect() {
cli, err := clientv3.New(clientv3.Config{
Endpoints: []string{"127.0.0.1:2379"},
DialTimeout: 5 * time.Second,
})
if err != nil {
log.Panic("Database is not reachable")
}
d.c = cli
}
func (d *Database) GetAllJobs() {
res, err := d.c.Get(context.Background(), "job_", clientv3.WithPrefix())
if err != nil {
log.Panic("Can't read jobs from database")
}
for _, kv := range res.Kvs {
log.Printf("key: %s value:\n", kv.Key)
var obj map[string]interface{}
json.Unmarshal([]byte(kv.Value), &obj)
s, _ := colorjson.Marshal(obj)
fmt.Println(string(s))
}
}
func (d *Database) Watch() {
ch := d.c.Watch(context.Background(), "job_", clientv3.WithPrefix())
go func(ch <-chan clientv3.WatchResponse) {
res := <-ch
for _, event := range res.Events {
log.Printf("%s\n", event.Kv.Value)
}
}(ch)
}
func (d *Database) Close() {
err := d.c.Close()
if err != nil {
log.Panic("Can't close database session")
}
}