Current File : //home/waritko/go/src/cloud.google.com/go/spanner/go18.go
// Copyright 2017 Google Inc. All Rights Reserved.
//
// 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.
// +build go1.8
package spanner
import (
"fmt"
"go.opencensus.io/trace"
"golang.org/x/net/context"
)
func traceStartSpan(ctx context.Context, name string) context.Context {
ctx, _ = trace.StartSpan(ctx, name)
return ctx
}
func traceEndSpan(ctx context.Context, err error) {
span := trace.FromContext(ctx)
if err != nil {
// TODO(jba): Add error code to the status.
span.SetStatus(trace.Status{Message: err.Error()})
}
span.End()
}
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...)
}
Mini Shell