mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-18 22:52:11 +01:00
484 lines
14 KiB
Go
484 lines
14 KiB
Go
// Copyright The OpenTelemetry Authors
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
package pcommon // import "go.opentelemetry.io/collector/pdata/pcommon"
|
|
|
|
import (
|
|
"encoding/base64"
|
|
"encoding/json"
|
|
"fmt"
|
|
"math"
|
|
"strconv"
|
|
|
|
"go.opentelemetry.io/collector/pdata/internal"
|
|
otlpcommon "go.opentelemetry.io/collector/pdata/internal/data/protogen/common/v1"
|
|
)
|
|
|
|
// ValueType specifies the type of Value.
|
|
type ValueType int32
|
|
|
|
const (
|
|
ValueTypeEmpty ValueType = iota
|
|
ValueTypeStr
|
|
ValueTypeInt
|
|
ValueTypeDouble
|
|
ValueTypeBool
|
|
ValueTypeMap
|
|
ValueTypeSlice
|
|
ValueTypeBytes
|
|
)
|
|
|
|
// String returns the string representation of the ValueType.
|
|
func (avt ValueType) String() string {
|
|
switch avt {
|
|
case ValueTypeEmpty:
|
|
return "Empty"
|
|
case ValueTypeStr:
|
|
return "Str"
|
|
case ValueTypeBool:
|
|
return "Bool"
|
|
case ValueTypeInt:
|
|
return "Int"
|
|
case ValueTypeDouble:
|
|
return "Double"
|
|
case ValueTypeMap:
|
|
return "Map"
|
|
case ValueTypeSlice:
|
|
return "Slice"
|
|
case ValueTypeBytes:
|
|
return "Bytes"
|
|
}
|
|
return ""
|
|
}
|
|
|
|
// Value is a mutable cell containing any value. Typically used as an element of Map or Slice.
|
|
// Must use one of NewValue+ functions below to create new instances.
|
|
//
|
|
// Intended to be passed by value since internally it is just a pointer to actual
|
|
// value representation. For the same reason passing by value and calling setters
|
|
// will modify the original, e.g.:
|
|
//
|
|
// func f1(val Value) { val.SetInt(234) }
|
|
// func f2() {
|
|
// v := NewValueStr("a string")
|
|
// f1(v)
|
|
// _ := v.Type() // this will return ValueTypeInt
|
|
// }
|
|
//
|
|
// Important: zero-initialized instance is not valid for use. All Value functions below must
|
|
// be called only on instances that are created via NewValue+ functions.
|
|
type Value internal.Value
|
|
|
|
// NewValueEmpty creates a new Value with an empty value.
|
|
func NewValueEmpty() Value {
|
|
state := internal.StateMutable
|
|
return newValue(&otlpcommon.AnyValue{}, &state)
|
|
}
|
|
|
|
// NewValueStr creates a new Value with the given string value.
|
|
func NewValueStr(v string) Value {
|
|
state := internal.StateMutable
|
|
return newValue(&otlpcommon.AnyValue{Value: &otlpcommon.AnyValue_StringValue{StringValue: v}}, &state)
|
|
}
|
|
|
|
// NewValueInt creates a new Value with the given int64 value.
|
|
func NewValueInt(v int64) Value {
|
|
state := internal.StateMutable
|
|
return newValue(&otlpcommon.AnyValue{Value: &otlpcommon.AnyValue_IntValue{IntValue: v}}, &state)
|
|
}
|
|
|
|
// NewValueDouble creates a new Value with the given float64 value.
|
|
func NewValueDouble(v float64) Value {
|
|
state := internal.StateMutable
|
|
return newValue(&otlpcommon.AnyValue{Value: &otlpcommon.AnyValue_DoubleValue{DoubleValue: v}}, &state)
|
|
}
|
|
|
|
// NewValueBool creates a new Value with the given bool value.
|
|
func NewValueBool(v bool) Value {
|
|
state := internal.StateMutable
|
|
return newValue(&otlpcommon.AnyValue{Value: &otlpcommon.AnyValue_BoolValue{BoolValue: v}}, &state)
|
|
}
|
|
|
|
// NewValueMap creates a new Value of map type.
|
|
func NewValueMap() Value {
|
|
state := internal.StateMutable
|
|
return newValue(&otlpcommon.AnyValue{Value: &otlpcommon.AnyValue_KvlistValue{KvlistValue: &otlpcommon.KeyValueList{}}}, &state)
|
|
}
|
|
|
|
// NewValueSlice creates a new Value of array type.
|
|
func NewValueSlice() Value {
|
|
state := internal.StateMutable
|
|
return newValue(&otlpcommon.AnyValue{Value: &otlpcommon.AnyValue_ArrayValue{ArrayValue: &otlpcommon.ArrayValue{}}}, &state)
|
|
}
|
|
|
|
// NewValueBytes creates a new empty Value of byte type.
|
|
func NewValueBytes() Value {
|
|
state := internal.StateMutable
|
|
return newValue(&otlpcommon.AnyValue{Value: &otlpcommon.AnyValue_BytesValue{BytesValue: nil}}, &state)
|
|
}
|
|
|
|
func newValue(orig *otlpcommon.AnyValue, state *internal.State) Value {
|
|
return Value(internal.NewValue(orig, state))
|
|
}
|
|
|
|
func (v Value) getOrig() *otlpcommon.AnyValue {
|
|
return internal.GetOrigValue(internal.Value(v))
|
|
}
|
|
|
|
func (v Value) getState() *internal.State {
|
|
return internal.GetValueState(internal.Value(v))
|
|
}
|
|
|
|
// FromRaw sets the value from the given raw value.
|
|
// Calling this function on zero-initialized Value will cause a panic.
|
|
func (v Value) FromRaw(iv any) error {
|
|
switch tv := iv.(type) {
|
|
case nil:
|
|
v.getOrig().Value = nil
|
|
case string:
|
|
v.SetStr(tv)
|
|
case int:
|
|
v.SetInt(int64(tv))
|
|
case int8:
|
|
v.SetInt(int64(tv))
|
|
case int16:
|
|
v.SetInt(int64(tv))
|
|
case int32:
|
|
v.SetInt(int64(tv))
|
|
case int64:
|
|
v.SetInt(tv)
|
|
case uint:
|
|
v.SetInt(int64(tv))
|
|
case uint8:
|
|
v.SetInt(int64(tv))
|
|
case uint16:
|
|
v.SetInt(int64(tv))
|
|
case uint32:
|
|
v.SetInt(int64(tv))
|
|
case uint64:
|
|
v.SetInt(int64(tv))
|
|
case float32:
|
|
v.SetDouble(float64(tv))
|
|
case float64:
|
|
v.SetDouble(tv)
|
|
case bool:
|
|
v.SetBool(tv)
|
|
case []byte:
|
|
v.SetEmptyBytes().FromRaw(tv)
|
|
case map[string]any:
|
|
return v.SetEmptyMap().FromRaw(tv)
|
|
case []any:
|
|
return v.SetEmptySlice().FromRaw(tv)
|
|
default:
|
|
return fmt.Errorf("<Invalid value type %T>", tv)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Type returns the type of the value for this Value.
|
|
// Calling this function on zero-initialized Value will cause a panic.
|
|
func (v Value) Type() ValueType {
|
|
switch v.getOrig().Value.(type) {
|
|
case *otlpcommon.AnyValue_StringValue:
|
|
return ValueTypeStr
|
|
case *otlpcommon.AnyValue_BoolValue:
|
|
return ValueTypeBool
|
|
case *otlpcommon.AnyValue_IntValue:
|
|
return ValueTypeInt
|
|
case *otlpcommon.AnyValue_DoubleValue:
|
|
return ValueTypeDouble
|
|
case *otlpcommon.AnyValue_KvlistValue:
|
|
return ValueTypeMap
|
|
case *otlpcommon.AnyValue_ArrayValue:
|
|
return ValueTypeSlice
|
|
case *otlpcommon.AnyValue_BytesValue:
|
|
return ValueTypeBytes
|
|
}
|
|
return ValueTypeEmpty
|
|
}
|
|
|
|
// Str returns the string value associated with this Value.
|
|
// The shorter name is used instead of String to avoid implementing fmt.Stringer interface.
|
|
// If the Type() is not ValueTypeStr then returns empty string.
|
|
func (v Value) Str() string {
|
|
return v.getOrig().GetStringValue()
|
|
}
|
|
|
|
// Int returns the int64 value associated with this Value.
|
|
// If the Type() is not ValueTypeInt then returns int64(0).
|
|
func (v Value) Int() int64 {
|
|
return v.getOrig().GetIntValue()
|
|
}
|
|
|
|
// Double returns the float64 value associated with this Value.
|
|
// If the Type() is not ValueTypeDouble then returns float64(0).
|
|
func (v Value) Double() float64 {
|
|
return v.getOrig().GetDoubleValue()
|
|
}
|
|
|
|
// Bool returns the bool value associated with this Value.
|
|
// If the Type() is not ValueTypeBool then returns false.
|
|
func (v Value) Bool() bool {
|
|
return v.getOrig().GetBoolValue()
|
|
}
|
|
|
|
// Map returns the map value associated with this Value.
|
|
// If the function is called on zero-initialized Value or if the Type() is not ValueTypeMap
|
|
// then it returns an invalid map. Note that using such map can cause panic.
|
|
func (v Value) Map() Map {
|
|
kvlist := v.getOrig().GetKvlistValue()
|
|
if kvlist == nil {
|
|
return Map{}
|
|
}
|
|
return newMap(&kvlist.Values, internal.GetValueState(internal.Value(v)))
|
|
}
|
|
|
|
// Slice returns the slice value associated with this Value.
|
|
// If the function is called on zero-initialized Value or if the Type() is not ValueTypeSlice
|
|
// then returns an invalid slice. Note that using such slice can cause panic.
|
|
func (v Value) Slice() Slice {
|
|
arr := v.getOrig().GetArrayValue()
|
|
if arr == nil {
|
|
return Slice{}
|
|
}
|
|
return newSlice(&arr.Values, internal.GetValueState(internal.Value(v)))
|
|
}
|
|
|
|
// Bytes returns the ByteSlice value associated with this Value.
|
|
// If the function is called on zero-initialized Value or if the Type() is not ValueTypeBytes
|
|
// then returns an invalid ByteSlice object. Note that using such slice can cause panic.
|
|
func (v Value) Bytes() ByteSlice {
|
|
bv, ok := v.getOrig().GetValue().(*otlpcommon.AnyValue_BytesValue)
|
|
if !ok {
|
|
return ByteSlice{}
|
|
}
|
|
return ByteSlice(internal.NewByteSlice(&bv.BytesValue, internal.GetValueState(internal.Value(v))))
|
|
}
|
|
|
|
// SetStr replaces the string value associated with this Value,
|
|
// it also changes the type to be ValueTypeStr.
|
|
// The shorter name is used instead of SetString to avoid implementing
|
|
// fmt.Stringer interface by the corresponding getter method.
|
|
// Calling this function on zero-initialized Value will cause a panic.
|
|
func (v Value) SetStr(sv string) {
|
|
v.getState().AssertMutable()
|
|
v.getOrig().Value = &otlpcommon.AnyValue_StringValue{StringValue: sv}
|
|
}
|
|
|
|
// SetInt replaces the int64 value associated with this Value,
|
|
// it also changes the type to be ValueTypeInt.
|
|
// Calling this function on zero-initialized Value will cause a panic.
|
|
func (v Value) SetInt(iv int64) {
|
|
v.getState().AssertMutable()
|
|
v.getOrig().Value = &otlpcommon.AnyValue_IntValue{IntValue: iv}
|
|
}
|
|
|
|
// SetDouble replaces the float64 value associated with this Value,
|
|
// it also changes the type to be ValueTypeDouble.
|
|
// Calling this function on zero-initialized Value will cause a panic.
|
|
func (v Value) SetDouble(dv float64) {
|
|
v.getState().AssertMutable()
|
|
v.getOrig().Value = &otlpcommon.AnyValue_DoubleValue{DoubleValue: dv}
|
|
}
|
|
|
|
// SetBool replaces the bool value associated with this Value,
|
|
// it also changes the type to be ValueTypeBool.
|
|
// Calling this function on zero-initialized Value will cause a panic.
|
|
func (v Value) SetBool(bv bool) {
|
|
v.getState().AssertMutable()
|
|
v.getOrig().Value = &otlpcommon.AnyValue_BoolValue{BoolValue: bv}
|
|
}
|
|
|
|
// SetEmptyBytes sets value to an empty byte slice and returns it.
|
|
// Calling this function on zero-initialized Value will cause a panic.
|
|
func (v Value) SetEmptyBytes() ByteSlice {
|
|
v.getState().AssertMutable()
|
|
bv := otlpcommon.AnyValue_BytesValue{BytesValue: nil}
|
|
v.getOrig().Value = &bv
|
|
return ByteSlice(internal.NewByteSlice(&bv.BytesValue, v.getState()))
|
|
}
|
|
|
|
// SetEmptyMap sets value to an empty map and returns it.
|
|
// Calling this function on zero-initialized Value will cause a panic.
|
|
func (v Value) SetEmptyMap() Map {
|
|
v.getState().AssertMutable()
|
|
kv := &otlpcommon.AnyValue_KvlistValue{KvlistValue: &otlpcommon.KeyValueList{}}
|
|
v.getOrig().Value = kv
|
|
return newMap(&kv.KvlistValue.Values, v.getState())
|
|
}
|
|
|
|
// SetEmptySlice sets value to an empty slice and returns it.
|
|
// Calling this function on zero-initialized Value will cause a panic.
|
|
func (v Value) SetEmptySlice() Slice {
|
|
v.getState().AssertMutable()
|
|
av := &otlpcommon.AnyValue_ArrayValue{ArrayValue: &otlpcommon.ArrayValue{}}
|
|
v.getOrig().Value = av
|
|
return newSlice(&av.ArrayValue.Values, v.getState())
|
|
}
|
|
|
|
// CopyTo copies the Value instance overriding the destination.
|
|
// Calling this function on zero-initialized Value will cause a panic.
|
|
func (v Value) CopyTo(dest Value) {
|
|
dest.getState().AssertMutable()
|
|
destOrig := dest.getOrig()
|
|
switch ov := v.getOrig().Value.(type) {
|
|
case *otlpcommon.AnyValue_KvlistValue:
|
|
kv, ok := destOrig.Value.(*otlpcommon.AnyValue_KvlistValue)
|
|
if !ok {
|
|
kv = &otlpcommon.AnyValue_KvlistValue{KvlistValue: &otlpcommon.KeyValueList{}}
|
|
destOrig.Value = kv
|
|
}
|
|
if ov.KvlistValue == nil {
|
|
kv.KvlistValue = nil
|
|
return
|
|
}
|
|
// Deep copy to dest.
|
|
newMap(&ov.KvlistValue.Values, v.getState()).CopyTo(newMap(&kv.KvlistValue.Values, dest.getState()))
|
|
case *otlpcommon.AnyValue_ArrayValue:
|
|
av, ok := destOrig.Value.(*otlpcommon.AnyValue_ArrayValue)
|
|
if !ok {
|
|
av = &otlpcommon.AnyValue_ArrayValue{ArrayValue: &otlpcommon.ArrayValue{}}
|
|
destOrig.Value = av
|
|
}
|
|
if ov.ArrayValue == nil {
|
|
av.ArrayValue = nil
|
|
return
|
|
}
|
|
// Deep copy to dest.
|
|
newSlice(&ov.ArrayValue.Values, v.getState()).CopyTo(newSlice(&av.ArrayValue.Values, dest.getState()))
|
|
case *otlpcommon.AnyValue_BytesValue:
|
|
bv, ok := destOrig.Value.(*otlpcommon.AnyValue_BytesValue)
|
|
if !ok {
|
|
bv = &otlpcommon.AnyValue_BytesValue{}
|
|
destOrig.Value = bv
|
|
}
|
|
bv.BytesValue = make([]byte, len(ov.BytesValue))
|
|
copy(bv.BytesValue, ov.BytesValue)
|
|
default:
|
|
// Primitive immutable type, no need for deep copy.
|
|
destOrig.Value = ov
|
|
}
|
|
}
|
|
|
|
// AsString converts an OTLP Value object of any type to its equivalent string
|
|
// representation. This differs from Str which only returns a non-empty value
|
|
// if the ValueType is ValueTypeStr.
|
|
// Calling this function on zero-initialized Value will cause a panic.
|
|
func (v Value) AsString() string {
|
|
switch v.Type() {
|
|
case ValueTypeEmpty:
|
|
return ""
|
|
|
|
case ValueTypeStr:
|
|
return v.Str()
|
|
|
|
case ValueTypeBool:
|
|
return strconv.FormatBool(v.Bool())
|
|
|
|
case ValueTypeDouble:
|
|
return float64AsString(v.Double())
|
|
|
|
case ValueTypeInt:
|
|
return strconv.FormatInt(v.Int(), 10)
|
|
|
|
case ValueTypeMap:
|
|
jsonStr, _ := json.Marshal(v.Map().AsRaw())
|
|
return string(jsonStr)
|
|
|
|
case ValueTypeBytes:
|
|
return base64.StdEncoding.EncodeToString(*v.Bytes().getOrig())
|
|
|
|
case ValueTypeSlice:
|
|
jsonStr, _ := json.Marshal(v.Slice().AsRaw())
|
|
return string(jsonStr)
|
|
|
|
default:
|
|
return fmt.Sprintf("<Unknown OpenTelemetry attribute value type %q>", v.Type())
|
|
}
|
|
}
|
|
|
|
// See https://cs.opensource.google/go/go/+/refs/tags/go1.17.7:src/encoding/json/encode.go;l=585.
|
|
// This allows us to avoid using reflection.
|
|
func float64AsString(f float64) string {
|
|
if math.IsInf(f, 0) || math.IsNaN(f) {
|
|
return fmt.Sprintf("json: unsupported value: %s", strconv.FormatFloat(f, 'g', -1, 64))
|
|
}
|
|
|
|
// Convert as if by ES6 number to string conversion.
|
|
// This matches most other JSON generators.
|
|
// See golang.org/issue/6384 and golang.org/issue/14135.
|
|
// Like fmt %g, but the exponent cutoffs are different
|
|
// and exponents themselves are not padded to two digits.
|
|
scratch := [64]byte{}
|
|
b := scratch[:0]
|
|
abs := math.Abs(f)
|
|
fmt := byte('f')
|
|
if abs != 0 && (abs < 1e-6 || abs >= 1e21) {
|
|
fmt = 'e'
|
|
}
|
|
b = strconv.AppendFloat(b, f, fmt, -1, 64)
|
|
if fmt == 'e' {
|
|
// clean up e-09 to e-9
|
|
n := len(b)
|
|
if n >= 4 && b[n-4] == 'e' && b[n-3] == '-' && b[n-2] == '0' {
|
|
b[n-2] = b[n-1]
|
|
b = b[:n-1]
|
|
}
|
|
}
|
|
return string(b)
|
|
}
|
|
|
|
func (v Value) AsRaw() any {
|
|
switch v.Type() {
|
|
case ValueTypeEmpty:
|
|
return nil
|
|
case ValueTypeStr:
|
|
return v.Str()
|
|
case ValueTypeBool:
|
|
return v.Bool()
|
|
case ValueTypeDouble:
|
|
return v.Double()
|
|
case ValueTypeInt:
|
|
return v.Int()
|
|
case ValueTypeBytes:
|
|
return v.Bytes().AsRaw()
|
|
case ValueTypeMap:
|
|
return v.Map().AsRaw()
|
|
case ValueTypeSlice:
|
|
return v.Slice().AsRaw()
|
|
}
|
|
return fmt.Sprintf("<Unknown OpenTelemetry value type %q>", v.Type())
|
|
}
|
|
|
|
func newKeyValueString(k string, v string) otlpcommon.KeyValue {
|
|
orig := otlpcommon.KeyValue{Key: k}
|
|
state := internal.StateMutable
|
|
akv := newValue(&orig.Value, &state)
|
|
akv.SetStr(v)
|
|
return orig
|
|
}
|
|
|
|
func newKeyValueInt(k string, v int64) otlpcommon.KeyValue {
|
|
orig := otlpcommon.KeyValue{Key: k}
|
|
state := internal.StateMutable
|
|
akv := newValue(&orig.Value, &state)
|
|
akv.SetInt(v)
|
|
return orig
|
|
}
|
|
|
|
func newKeyValueDouble(k string, v float64) otlpcommon.KeyValue {
|
|
orig := otlpcommon.KeyValue{Key: k}
|
|
state := internal.StateMutable
|
|
akv := newValue(&orig.Value, &state)
|
|
akv.SetDouble(v)
|
|
return orig
|
|
}
|
|
|
|
func newKeyValueBool(k string, v bool) otlpcommon.KeyValue {
|
|
orig := otlpcommon.KeyValue{Key: k}
|
|
state := internal.StateMutable
|
|
akv := newValue(&orig.Value, &state)
|
|
akv.SetBool(v)
|
|
return orig
|
|
}
|