Fix using value mapping from zabbix, closes #1222

pkg/datasource/models.go

@@ -100,6 +100,7 @@ type QueryFilter struct {
 type QueryOptions struct {
 	ShowDisabledItems     bool `json:"showDisabledItems"`
 	DisableDataAlignment  bool `json:"disableDataAlignment"`
+	UseZabbixValueMapping bool `json:"useZabbixValueMapping"`
 }
 
 // QueryOptions model

pkg/datasource/response_handler.go

@@ -92,17 +92,17 @@ func convertTimeSeriesToDataFrame(series []*timeseries.TimeSeriesData) *data.Fra
 	return wideFrame
 }
 
-func convertTimeSeriesToDataFrames(series []*timeseries.TimeSeriesData) []*data.Frame {
+func convertTimeSeriesToDataFrames(series []*timeseries.TimeSeriesData, valuemaps []zabbix.ValueMap) []*data.Frame {
 	frames := make([]*data.Frame, 0)
 
 	for _, s := range series {
-		frames = append(frames, seriesToDataFrame(s))
+		frames = append(frames, seriesToDataFrame(s, valuemaps))
 	}
 
 	return frames
 }
 
-func seriesToDataFrame(series *timeseries.TimeSeriesData) *data.Frame {
+func seriesToDataFrame(series *timeseries.TimeSeriesData, valuemaps []zabbix.ValueMap) *data.Frame {
 	timeFileld := data.NewFieldFromFieldType(data.FieldTypeTime, 0)
 	timeFileld.Name = data.TimeSeriesTimeFieldName
 
@@ -128,6 +128,11 @@ func seriesToDataFrame(series *timeseries.TimeSeriesData) *data.Frame {
 		},
 	}
 
+	if len(valuemaps) > 0 {
+		mappings := getValueMapping(*item, valuemaps)
+		valueField.Config.Mappings = mappings
+	}
+
 	frame := data.NewFrame(seriesName, timeFileld, valueField)
 
 	for _, point := range series.TS {
@@ -248,3 +253,28 @@ func parseItemUpdateInterval(delay string) *time.Duration {
 
 	return &interval
 }
+
+func getValueMapping(item zabbix.Item, valueMaps []zabbix.ValueMap) data.ValueMappings {
+	mappings := make([]data.ValueMapping, 0)
+	zabbixMap := zabbix.ValueMap{}
+
+	for _, vm := range valueMaps {
+		if vm.ID == item.ValueMapID {
+			zabbixMap = vm
+			break
+		}
+	}
+
+	if zabbixMap.ID == "" {
+		return mappings
+	}
+
+	for _, m := range zabbixMap.Mappings {
+		mappings = append(mappings, data.ValueMapper{
+			m.Value: {
+				Text: m.NewValue,
+			},
+		})
+	}
+	return mappings
+}

pkg/datasource/zabbix.go

@@ -145,7 +145,15 @@ func (ds *ZabbixDatasourceInstance) applyDataProcessing(ctx context.Context, que
 		}
 	}
 
-	frames := convertTimeSeriesToDataFrames(series)
+	valueMaps := make([]zabbix.ValueMap, 0)
+	if query.Options.UseZabbixValueMapping {
+		valueMaps, err = ds.zabbix.GetValueMappings(ctx)
+		if err != nil {
+			ds.logger.Error("Error getting value maps", "error", err)
+			valueMaps = []zabbix.ValueMap{}
+		}
+	}
+	frames := convertTimeSeriesToDataFrames(series, valueMaps)
 	return frames, nil
 }
 

pkg/zabbix/methods.go

@@ -397,6 +397,22 @@ func (ds *Zabbix) GetAllGroups(ctx context.Context) ([]Group, error) {
 	return groups, err
 }
 
+func (ds *Zabbix) GetValueMappings(ctx context.Context) ([]ValueMap, error) {
+	params := ZabbixAPIParams{
+		"output":         "extend",
+		"selectMappings": "extend",
+	}
+
+	result, err := ds.Request(ctx, &ZabbixAPIRequest{Method: "valuemap.get", Params: params})
+	if err != nil {
+		return nil, err
+	}
+
+	var valuemaps []ValueMap
+	err = convertTo(result, &valuemaps)
+	return valuemaps, err
+}
+
 func (ds *Zabbix) GetVersion(ctx context.Context) (int, error) {
 	result, err := ds.request(ctx, "apiinfo.version", ZabbixAPIParams{})
 	if err != nil {

pkg/zabbix/models.go

@@ -99,3 +99,14 @@ type Application struct {
 	Name string `json:"name"`
 	ID   string `json:"applicationid"`
 }
+
+type ValueMap struct {
+	ID       string         `json:"valuemapid"`
+	Name     string         `json:"name"`
+	Mappings []ValueMapping `json:"mappings"`
+}
+
+type ValueMapping struct {
+	Value    string `json:"value"`
+	NewValue string `json:"newvalue"`
+}