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Signed-off-by: Jaydip Gabani <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| package dapr | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
|
|
||
| daprClient "github.com/dapr/go-sdk/client" | ||
| ) | ||
|
|
||
| type Connection struct { | ||
| // Name of the component object to use in Dapr | ||
| component string | ||
|
|
||
| client daprClient.Client | ||
| } | ||
|
|
||
| // Dapr represents driver to use Dapr. | ||
| type Dapr struct { | ||
| openConnections map[string]Connection | ||
| } | ||
|
|
||
| const ( | ||
| Name = "dapr" | ||
| ) | ||
|
|
||
| var Connections = &Dapr{ | ||
| openConnections: make(map[string]Connection), | ||
| } | ||
|
|
||
| func (r *Dapr) Publish(_ context.Context, connectionName string, data interface{}, topic string) error { | ||
| jsonData, err := json.Marshal(data) | ||
| if err != nil { | ||
| return fmt.Errorf("error marshaling data: %w", err) | ||
| } | ||
|
|
||
| conn, ok := r.openConnections[connectionName] | ||
| if !ok { | ||
| return fmt.Errorf("connection not found: %s for Dapr driver", connectionName) | ||
| } | ||
| err = conn.client.PublishEvent(context.Background(), conn.component, topic, jsonData) | ||
| if err != nil { | ||
| return fmt.Errorf("error publishing message to dapr: %w", err) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func (r *Dapr) CloseConnection(connectionName string) error { | ||
| delete(r.openConnections, connectionName) | ||
| return nil | ||
| } | ||
|
|
||
| func (r *Dapr) UpdateConnection(_ context.Context, connectionName string, config interface{}) error { | ||
| cfg, ok := config.(map[string]interface{}) | ||
| if !ok { | ||
| return fmt.Errorf("invalid type assertion, config is not in expected format") | ||
| } | ||
| component, ok := cfg["component"].(string) | ||
| if !ok { | ||
| return fmt.Errorf("failed to get value of component") | ||
| } | ||
| conn := r.openConnections[connectionName] | ||
| conn.component = component | ||
| r.openConnections[connectionName] = conn | ||
| return nil | ||
| } | ||
|
|
||
| func (r *Dapr) CreateConnection(_ context.Context, connectionName string, config interface{}) error { | ||
| var conn Connection | ||
| cfg, ok := config.(map[string]interface{}) | ||
| if !ok { | ||
| return fmt.Errorf("invalid type assertion, config is not in expected format") | ||
| } | ||
| conn.component, ok = cfg["component"].(string) | ||
| if !ok { | ||
| return fmt.Errorf("failed to get value of component") | ||
| } | ||
|
|
||
| tmp, err := daprClient.NewClient() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| conn.client = tmp | ||
| r.openConnections[connectionName] = conn | ||
| return nil | ||
| } |
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