Stephane Barbarie | 4a2564d | 2018-07-26 11:02:58 -0400 | [diff] [blame] | 1 | package model |
| 2 | |
| 3 | import ( |
| 4 | "errors" |
| 5 | "fmt" |
| 6 | "github.com/opencord/voltha-go/db/kvstore" |
| 7 | "strconv" |
| 8 | ) |
| 9 | |
| 10 | //TODO: missing cache stuff |
| 11 | //TODO: missing retry stuff |
| 12 | //TODO: missing proper logging |
| 13 | |
| 14 | type Backend struct { |
| 15 | Client kvstore.Client |
| 16 | StoreType string |
| 17 | Host string |
| 18 | Port int |
| 19 | Timeout int |
| 20 | PathPrefix string |
| 21 | } |
| 22 | |
| 23 | func NewBackend(storeType string, host string, port int, timeout int, pathPrefix string) *Backend { |
| 24 | var err error |
| 25 | |
| 26 | b := &Backend{ |
| 27 | StoreType: storeType, |
| 28 | Host: host, |
| 29 | Port: port, |
| 30 | Timeout: timeout, |
| 31 | PathPrefix: pathPrefix, |
| 32 | } |
| 33 | |
| 34 | address := host + ":" + strconv.Itoa(port) |
| 35 | if b.Client, err = b.newClient(address, timeout); err != nil { |
| 36 | fmt.Errorf("failed to create a new kv Client - %s", err.Error()) |
| 37 | } |
| 38 | |
| 39 | return b |
| 40 | } |
| 41 | |
| 42 | func (b *Backend) newClient(address string, timeout int) (kvstore.Client, error) { |
| 43 | switch b.StoreType { |
| 44 | case "consul": |
| 45 | return kvstore.NewConsulClient(address, timeout) |
| 46 | case "etcd": |
| 47 | return kvstore.NewEtcdClient(address, timeout) |
| 48 | } |
| 49 | return nil, errors.New("Unsupported KV store") |
| 50 | } |
| 51 | |
| 52 | func (b *Backend) makePath(key string) string { |
| 53 | return fmt.Sprintf("%s/%s", b.PathPrefix, key) |
| 54 | } |
| 55 | func (b *Backend) Get(key string) (*kvstore.KVPair, error) { |
| 56 | return b.Client.Get(b.makePath(key), b.Timeout) |
| 57 | } |
| 58 | func (b *Backend) Put(key string, value interface{}) error { |
| 59 | return b.Client.Put(b.makePath(key), value, b.Timeout) |
| 60 | } |
| 61 | func (b *Backend) Delete(key string) error { |
| 62 | return b.Client.Delete(b.makePath(key), b.Timeout) |
| 63 | } |