mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
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711f2cc4f2
Commit adds the following changes: * Adds support of OpenTelemetry logs for Victoria Logs with protobuf encoded messages * json encoding is not supported for the following reasons: - It brings a lot of fragile code, which works inefficiently. - json encoding is impossible to use with language SDK. * splits metrics and logs structures at lib/protoparser/opentelemetry/pb package. * adds docs with examples for opentelemetry logs. --- Related issue: https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4839 Co-authored-by: AndrewChubatiuk <andrew.chubatiuk@gmail.com> Co-authored-by: f41gh7 <nik@victoriametrics.com>
66 lines
1.6 KiB
Go
66 lines
1.6 KiB
Go
package pb
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import (
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"encoding/base64"
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"encoding/json"
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"fmt"
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"math"
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"strconv"
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)
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// FormatString returns string reperesentation for av.
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func (av *AnyValue) FormatString() string {
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if av == nil {
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return ""
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}
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switch {
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case av.StringValue != nil:
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return *av.StringValue
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case av.BoolValue != nil:
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return strconv.FormatBool(*av.BoolValue)
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case av.IntValue != nil:
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return strconv.FormatInt(*av.IntValue, 10)
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case av.DoubleValue != nil:
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return float64AsString(*av.DoubleValue)
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case av.ArrayValue != nil:
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jsonStr, _ := json.Marshal(av.ArrayValue.Values)
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return string(jsonStr)
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case av.KeyValueList != nil:
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jsonStr, _ := json.Marshal(av.KeyValueList.Values)
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return string(jsonStr)
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case av.BytesValue != nil:
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return base64.StdEncoding.EncodeToString(*av.BytesValue)
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default:
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return ""
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}
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}
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func float64AsString(f float64) string {
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if math.IsInf(f, 0) || math.IsNaN(f) {
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return fmt.Sprintf("json: unsupported value: %s", strconv.FormatFloat(f, 'g', -1, 64))
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}
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// Convert as if by ES6 number to string conversion.
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// This matches most other JSON generators.
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// See golang.org/issue/6384 and golang.org/issue/14135.
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// Like fmt %g, but the exponent cutoffs are different
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// and exponents themselves are not padded to two digits.
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scratch := [64]byte{}
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b := scratch[:0]
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abs := math.Abs(f)
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fmt := byte('f')
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if abs != 0 && (abs < 1e-6 || abs >= 1e21) {
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fmt = 'e'
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}
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b = strconv.AppendFloat(b, f, fmt, -1, 64)
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if fmt == 'e' {
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// clean up e-09 to e-9
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n := len(b)
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if n >= 4 && b[n-4] == 'e' && b[n-3] == '-' && b[n-2] == '0' {
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b[n-2] = b[n-1]
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b = b[:n-1]
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}
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}
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return string(b)
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}
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