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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| package common_utils | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
| sdcfg "github.com/sonic-net/sonic-gnmi/sonic_db_config" | ||
| "github.com/go-redis/redis" | ||
| log "github.com/golang/glog" | ||
| ) | ||
|
|
||
| const ( | ||
| dbName = "STATE_DB" | ||
| ) | ||
|
|
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| func getRedisDBClient() (*redis.Client, error) { | ||
| rclient := redis.NewClient(&redis.Options{ | ||
| Network: "tcp", | ||
| Addr: sdcfg.GetDbTcpAddr(dbName), | ||
| Password: "", // no password set | ||
| DB: sdcfg.GetDbId(dbName), | ||
| DialTimeout: 0, | ||
| }) | ||
| if rclient == nil { | ||
| return nil, fmt.Errorf("Cannot create redis client.") | ||
| } | ||
| if _, err := rclient.Ping().Result(); err != nil { | ||
| return nil, err | ||
| } | ||
| return rclient, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| package common_utils | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
|
|
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| "github.com/go-redis/redis" | ||
| log "github.com/golang/glog" | ||
| ) | ||
|
|
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| // NotificationProducer provides utilities for sending messages using notification channel. | ||
| // NewNotificationProducer must be called for a new producer. | ||
| // Close must be called when finished. | ||
| type NotificationProducer struct { | ||
| ch string | ||
| rc *redis.Client | ||
| } | ||
|
|
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| // NewNotificationProducer returns a new NotificationProducer. | ||
| func NewNotificationProducer(ch string) (*NotificationProducer, error) { | ||
| n := new(NotificationProducer) | ||
| n.ch = ch | ||
|
|
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| // Create redis client. | ||
| var err error | ||
| n.rc, err = getRedisDBClient() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
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| return n, nil | ||
| } | ||
|
|
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| // Close performs cleanup works. | ||
| // Close must be called when finished. | ||
| func (n *NotificationProducer) Close() { | ||
| if n.rc != nil { | ||
| n.rc.Close() | ||
| } | ||
| } | ||
|
|
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| func (n *NotificationProducer) Send(op, data string, kvs map[string]string) error { | ||
| fvs := []string{op, data} | ||
| for k, v := range kvs { | ||
| fvs = append(fvs, k) | ||
| fvs = append(fvs, v) | ||
| } | ||
|
|
||
| val, err := json.Marshal(fvs) | ||
| if err != nil { | ||
| log.Error(err.Error()) | ||
| return err | ||
| } | ||
| log.Infof("Publishing to channel %s: %v.", n.ch, string(val)) | ||
| return n.rc.Publish(n.ch, val).Err() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| package common_utils | ||
|
|
||
| import ( | ||
| "testing" | ||
| ) | ||
|
|
||
| const ( | ||
| channel string = "channel" | ||
| ) | ||
|
|
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| func TestNotificationProducerSucceedsWithEmptyOp(t *testing.T) { | ||
| n, _ := NewNotificationProducer(channel) | ||
| defer n.Close() | ||
| if err := n.Send("", "somedata", map[string]string{}); err != nil { | ||
| t.Fatalf("Expected no error!") | ||
| } | ||
| } | ||
|
|
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| func TestNotificationProducerSucceedsWithEmptyData(t *testing.T) { | ||
| n, _ := NewNotificationProducer(channel) | ||
| defer n.Close() | ||
| if err := n.Send("someop", "", map[string]string{}); err != nil { | ||
| t.Fatalf("Expected no error!") | ||
| } | ||
| } | ||
|
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| func TestNotificationProducerSucceedsWithEmptyOpAndData(t *testing.T) { | ||
| n, _ := NewNotificationProducer(channel) | ||
| defer n.Close() | ||
| if err := n.Send("", "", map[string]string{}); err != nil { | ||
| t.Fatalf("Expected no error!") | ||
| } | ||
| } | ||
|
|
||
| func TestNotificationProducerSucceedsWithEmptyKeyValues(t *testing.T) { | ||
| n, _ := NewNotificationProducer(channel) | ||
| defer n.Close() | ||
| if err := n.Send("someop", "somedata", map[string]string{}); err != nil { | ||
| t.Fatalf("Expected no error!") | ||
| } | ||
| } | ||
|
|
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| func TestNotificationProducerSucceeds(t *testing.T) { | ||
| n, _ := NewNotificationProducer(channel) | ||
| defer n.Close() | ||
| if err := n.Send("someop", "somedata", map[string]string{"somekey": "somevalue"}); err != nil { | ||
| t.Fatalf("Expected no error!") | ||
| } | ||
| } |
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