mirror of
https://github.com/rocky-linux/peridot.git
synced 2024-12-26 04:00:55 +00:00
109 lines
3.4 KiB
Go
109 lines
3.4 KiB
Go
// Copyright 2018 Google LLC
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package trace
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"go.opencensus.io/trace"
|
|
"google.golang.org/api/googleapi"
|
|
"google.golang.org/genproto/googleapis/rpc/code"
|
|
"google.golang.org/grpc/status"
|
|
)
|
|
|
|
// StartSpan adds a span to the trace with the given name.
|
|
func StartSpan(ctx context.Context, name string) context.Context {
|
|
ctx, _ = trace.StartSpan(ctx, name)
|
|
return ctx
|
|
}
|
|
|
|
// EndSpan ends a span with the given error.
|
|
func EndSpan(ctx context.Context, err error) {
|
|
span := trace.FromContext(ctx)
|
|
if err != nil {
|
|
span.SetStatus(toStatus(err))
|
|
}
|
|
span.End()
|
|
}
|
|
|
|
// toStatus interrogates an error and converts it to an appropriate
|
|
// OpenCensus status.
|
|
func toStatus(err error) trace.Status {
|
|
if err2, ok := err.(*googleapi.Error); ok {
|
|
return trace.Status{Code: httpStatusCodeToOCCode(err2.Code), Message: err2.Message}
|
|
} else if s, ok := status.FromError(err); ok {
|
|
return trace.Status{Code: int32(s.Code()), Message: s.Message()}
|
|
} else {
|
|
return trace.Status{Code: int32(code.Code_UNKNOWN), Message: err.Error()}
|
|
}
|
|
}
|
|
|
|
// TODO(deklerk): switch to using OpenCensus function when it becomes available.
|
|
// Reference: https://github.com/googleapis/googleapis/blob/26b634d2724ac5dd30ae0b0cbfb01f07f2e4050e/google/rpc/code.proto
|
|
func httpStatusCodeToOCCode(httpStatusCode int) int32 {
|
|
switch httpStatusCode {
|
|
case 200:
|
|
return int32(code.Code_OK)
|
|
case 499:
|
|
return int32(code.Code_CANCELLED)
|
|
case 500:
|
|
return int32(code.Code_UNKNOWN) // Could also be Code_INTERNAL, Code_DATA_LOSS
|
|
case 400:
|
|
return int32(code.Code_INVALID_ARGUMENT) // Could also be Code_OUT_OF_RANGE
|
|
case 504:
|
|
return int32(code.Code_DEADLINE_EXCEEDED)
|
|
case 404:
|
|
return int32(code.Code_NOT_FOUND)
|
|
case 409:
|
|
return int32(code.Code_ALREADY_EXISTS) // Could also be Code_ABORTED
|
|
case 403:
|
|
return int32(code.Code_PERMISSION_DENIED)
|
|
case 401:
|
|
return int32(code.Code_UNAUTHENTICATED)
|
|
case 429:
|
|
return int32(code.Code_RESOURCE_EXHAUSTED)
|
|
case 501:
|
|
return int32(code.Code_UNIMPLEMENTED)
|
|
case 503:
|
|
return int32(code.Code_UNAVAILABLE)
|
|
default:
|
|
return int32(code.Code_UNKNOWN)
|
|
}
|
|
}
|
|
|
|
// TODO: (odeke-em): perhaps just pass around spans due to the cost
|
|
// incurred from using trace.FromContext(ctx) yet we could avoid
|
|
// throwing away the work done by ctx, span := trace.StartSpan.
|
|
func TracePrintf(ctx context.Context, attrMap map[string]interface{}, format string, args ...interface{}) {
|
|
var attrs []trace.Attribute
|
|
for k, v := range attrMap {
|
|
var a trace.Attribute
|
|
switch v := v.(type) {
|
|
case string:
|
|
a = trace.StringAttribute(k, v)
|
|
case bool:
|
|
a = trace.BoolAttribute(k, v)
|
|
case int:
|
|
a = trace.Int64Attribute(k, int64(v))
|
|
case int64:
|
|
a = trace.Int64Attribute(k, v)
|
|
default:
|
|
a = trace.StringAttribute(k, fmt.Sprintf("%#v", v))
|
|
}
|
|
attrs = append(attrs, a)
|
|
}
|
|
trace.FromContext(ctx).Annotatef(attrs, format, args...)
|
|
}
|