/
convert_from_protobuf.go
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/
convert_from_protobuf.go
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package backend
import (
"errors"
"time"
"github.com/grafana/grafana-plugin-sdk-go/data"
"github.com/grafana/grafana-plugin-sdk-go/genproto/pluginv2"
)
// ConvertFromProtobuf has a collection of methods for converting from the autogenerated
// protobuf go code to our SDK objects. This object exists to attach a collection
// of conversion methods to.
//
// This is used internally by the SDK and inside Grafana-server, plugin authors should not
// need this functionality.
type ConvertFromProtobuf struct{}
// FromProto returns a new ConvertFromProtobuf.
func FromProto() ConvertFromProtobuf {
return ConvertFromProtobuf{}
}
// User converts protobuf version of a User to the SDK version.
func (f ConvertFromProtobuf) User(user *pluginv2.User) *User {
if user == nil {
return nil
}
return &User{
Login: user.Login,
Name: user.Name,
Email: user.Email,
Role: user.Role,
}
}
// AppInstanceSettings converts protobuf version of an AppInstanceSettings to the SDK version.
func (f ConvertFromProtobuf) AppInstanceSettings(proto *pluginv2.AppInstanceSettings) *AppInstanceSettings {
if proto == nil {
return nil
}
return &AppInstanceSettings{
JSONData: proto.JsonData,
DecryptedSecureJSONData: proto.DecryptedSecureJsonData,
Updated: time.Unix(0, proto.LastUpdatedMS*int64(time.Millisecond)),
}
}
// DataSourceInstanceSettings converts protobuf version of a DataSourceInstanceSettings to the SDK version.
func (f ConvertFromProtobuf) DataSourceInstanceSettings(proto *pluginv2.DataSourceInstanceSettings, pluginID string) *DataSourceInstanceSettings {
if proto == nil {
return nil
}
return &DataSourceInstanceSettings{
ID: proto.Id,
UID: proto.Uid,
Type: pluginID,
Name: proto.Name,
URL: proto.Url,
User: proto.User,
Database: proto.Database,
BasicAuthEnabled: proto.BasicAuthEnabled,
BasicAuthUser: proto.BasicAuthUser,
JSONData: proto.JsonData,
DecryptedSecureJSONData: proto.DecryptedSecureJsonData,
Updated: time.Unix(0, proto.LastUpdatedMS*int64(time.Millisecond)),
}
}
// PluginContext converts protobuf version of a PluginContext to the SDK version.
func (f ConvertFromProtobuf) PluginContext(proto *pluginv2.PluginContext) PluginContext {
return PluginContext{
OrgID: proto.OrgId,
PluginID: proto.PluginId,
User: f.User(proto.User),
AppInstanceSettings: f.AppInstanceSettings(proto.AppInstanceSettings),
DataSourceInstanceSettings: f.DataSourceInstanceSettings(proto.DataSourceInstanceSettings, proto.PluginId),
}
}
// TimeRange converts protobuf version of a TimeRange to the SDK version.
func (f ConvertFromProtobuf) TimeRange(proto *pluginv2.TimeRange) TimeRange {
return TimeRange{
From: time.Unix(0, proto.FromEpochMS*int64(time.Millisecond)),
To: time.Unix(0, proto.ToEpochMS*int64(time.Millisecond)),
}
}
// DataQuery converts protobuf version of a DataQuery to the SDK version.
func (f ConvertFromProtobuf) DataQuery(proto *pluginv2.DataQuery) *DataQuery {
if proto == nil {
return nil
}
return &DataQuery{
RefID: proto.RefId,
QueryType: proto.QueryType,
MaxDataPoints: proto.MaxDataPoints,
TimeRange: f.TimeRange(proto.TimeRange),
Interval: time.Duration(proto.IntervalMS) * time.Millisecond,
JSON: proto.Json,
}
}
// QueryDataRequest converts protobuf version of a QueryDataRequest to the SDK version.
func (f ConvertFromProtobuf) QueryDataRequest(protoReq *pluginv2.QueryDataRequest) *QueryDataRequest {
queries := make([]DataQuery, len(protoReq.Queries))
for i, q := range protoReq.Queries {
queries[i] = *f.DataQuery(q)
}
return &QueryDataRequest{
PluginContext: f.PluginContext(protoReq.PluginContext),
Headers: protoReq.Headers,
Queries: queries,
}
}
// QueryDataResponse converts protobuf version of a QueryDataResponse to the SDK version.
func (f ConvertFromProtobuf) QueryDataResponse(protoRes *pluginv2.QueryDataResponse) (*QueryDataResponse, error) {
qdr := &QueryDataResponse{
Responses: make(Responses, len(protoRes.Responses)),
}
for refID, res := range protoRes.Responses {
frames, err := data.UnmarshalArrowFrames(res.Frames)
if err != nil {
return nil, err
}
status := Status(res.Status)
if !status.IsValid() {
status = StatusUnknown
}
dr := DataResponse{
Frames: frames,
Status: status,
}
if res.Error != "" {
dr.Error = errors.New(res.Error)
}
qdr.Responses[refID] = dr
}
return qdr, nil
}
// CallResourceRequest converts protobuf version of a CallResourceRequest to the SDK version.
func (f ConvertFromProtobuf) CallResourceRequest(protoReq *pluginv2.CallResourceRequest) *CallResourceRequest {
headers := map[string][]string{}
for k, values := range protoReq.Headers {
headers[k] = values.Values
}
return &CallResourceRequest{
PluginContext: f.PluginContext(protoReq.PluginContext),
Path: protoReq.Path,
Method: protoReq.Method,
URL: protoReq.Url,
Headers: headers,
Body: protoReq.Body,
}
}
// CallResourceResponse converts protobuf version of a CallResourceResponse to the SDK version.
func (f ConvertFromProtobuf) CallResourceResponse(protoResp *pluginv2.CallResourceResponse) *CallResourceResponse {
headers := map[string][]string{}
for k, values := range protoResp.Headers {
headers[k] = values.Values
}
return &CallResourceResponse{
Status: int(protoResp.Code),
Body: protoResp.Body,
Headers: headers,
}
}
// CheckHealthRequest converts protobuf version of a CheckHealthRequest to the SDK version.
func (f ConvertFromProtobuf) CheckHealthRequest(protoReq *pluginv2.CheckHealthRequest) *CheckHealthRequest {
if protoReq.Headers == nil {
protoReq.Headers = map[string]string{}
}
return &CheckHealthRequest{
PluginContext: f.PluginContext(protoReq.PluginContext),
Headers: protoReq.Headers,
}
}
// CheckHealthResponse converts protobuf version of a HealthCheckResponse to the SDK version.
func (f ConvertFromProtobuf) CheckHealthResponse(protoResp *pluginv2.CheckHealthResponse) *CheckHealthResult {
status := HealthStatusUnknown
switch protoResp.Status {
case pluginv2.CheckHealthResponse_ERROR:
status = HealthStatusError
case pluginv2.CheckHealthResponse_OK:
status = HealthStatusOk
}
return &CheckHealthResult{
Status: status,
Message: protoResp.Message,
JSONDetails: protoResp.JsonDetails,
}
}
// CollectMetricsRequest converts protobuf version of a CollectMetricsRequest to the SDK version.
func (f ConvertFromProtobuf) CollectMetricsRequest(protoReq *pluginv2.CollectMetricsRequest) *CollectMetricsRequest {
return &CollectMetricsRequest{
PluginContext: f.PluginContext(protoReq.PluginContext),
}
}
// CollectMetricsResponse converts protobuf version of a CollectMetricsResponse to the SDK version.
func (f ConvertFromProtobuf) CollectMetricsResponse(protoResp *pluginv2.CollectMetricsResponse) *CollectMetricsResult {
var prometheusMetrics []byte
if protoResp.Metrics != nil {
prometheusMetrics = protoResp.Metrics.Prometheus
}
return &CollectMetricsResult{
PrometheusMetrics: prometheusMetrics,
}
}
// SubscribeStreamRequest ...
func (f ConvertFromProtobuf) SubscribeStreamRequest(protoReq *pluginv2.SubscribeStreamRequest) *SubscribeStreamRequest {
return &SubscribeStreamRequest{
PluginContext: f.PluginContext(protoReq.PluginContext),
Path: protoReq.GetPath(),
Data: protoReq.GetData(),
}
}
// SubscribeStreamResponse ...
func (f ConvertFromProtobuf) SubscribeStreamResponse(protoReq *pluginv2.SubscribeStreamResponse) *SubscribeStreamResponse {
return &SubscribeStreamResponse{
Status: SubscribeStreamStatus(protoReq.GetStatus()),
InitialData: &InitialData{
data: protoReq.Data,
},
}
}
// PublishStreamRequest ...
func (f ConvertFromProtobuf) PublishStreamRequest(protoReq *pluginv2.PublishStreamRequest) *PublishStreamRequest {
return &PublishStreamRequest{
PluginContext: f.PluginContext(protoReq.PluginContext),
Path: protoReq.GetPath(),
}
}
// PublishStreamResponse ...
func (f ConvertFromProtobuf) PublishStreamResponse(protoReq *pluginv2.PublishStreamResponse) *PublishStreamResponse {
return &PublishStreamResponse{
Status: PublishStreamStatus(protoReq.GetStatus()),
Data: protoReq.GetData(),
}
}
// RunStreamRequest ...
func (f ConvertFromProtobuf) RunStreamRequest(protoReq *pluginv2.RunStreamRequest) *RunStreamRequest {
return &RunStreamRequest{
PluginContext: f.PluginContext(protoReq.PluginContext),
Path: protoReq.GetPath(),
Data: protoReq.GetData(),
}
}
// StreamPacket ...
func (f ConvertFromProtobuf) StreamPacket(protoReq *pluginv2.StreamPacket) *StreamPacket {
return &StreamPacket{
Data: protoReq.GetData(),
}
}