traceql

package
v0.9.0 Latest Latest
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 Go to latest Published: Jan 21, 2024 License: Apache-2.0 Imports: 12 Imported by: 0

Documentation

Overview

Package traceql contains TraceQL parser and AST definitions.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type AggregateOp 

type AggregateOp int

AggregateOp defines aggregation operator. 

const (
	AggregateOpCount AggregateOp = iota + 1
	AggregateOpMax
	AggregateOpMin
	AggregateOpAvg
	AggregateOpSum
)

func (AggregateOp) String 

func (op AggregateOp) String() string

String implements fmt.Stringer.

type AggregateScalarExpr 

type AggregateScalarExpr struct {
	Op    AggregateOp
	Field FieldExpr // nilable
}

AggregateScalarExpr is an aggregate function.

func (*AggregateScalarExpr) ValueType 

func (s *AggregateScalarExpr) ValueType() StaticType

ValueType returns value type of expression.

type Attribute 

type Attribute struct {
	Name   string
	Scope  AttributeScope
	Prop   SpanProperty
	Parent bool // refers to parent
}

Attribute is a span attribute.

func (Attribute) String 

func (s Attribute) String() string

String implements fmt.Stringer.

func (*Attribute) ValueType 

func (s *Attribute) ValueType() StaticType

ValueType returns value type of expression.

type AttributeScope 

type AttributeScope uint8

AttributeScope is an attribute scope. 

const (
	ScopeNone AttributeScope = iota
	ScopeResource
	ScopeSpan
)

type BinaryExpr 

type BinaryExpr struct {
	Left  Expr
	Op    SpansetOp
	Right Expr
}

BinaryExpr is a binary expression.

type BinaryFieldExpr 

type BinaryFieldExpr struct {
	Left  FieldExpr
	Op    BinaryOp
	Right FieldExpr
}

BinaryFieldExpr is a binary operation between two field expressions.

func (*BinaryFieldExpr) ValueType 

func (s *BinaryFieldExpr) ValueType() StaticType

ValueType returns value type of expression.

type BinaryOp 

type BinaryOp int

BinaryOp defines binary operator. 

const (
	// Logical ops.
	OpAnd BinaryOp = iota + 1
	OpOr
	// Math ops.
	OpAdd
	OpSub
	OpMul
	OpDiv
	OpMod
	OpPow
	// Comparison ops.
	OpEq
	OpNotEq
	OpRe
	OpNotRe
	OpGt
	OpGte
	OpLt
	OpLte
)

func (BinaryOp) CheckType 

func (op BinaryOp) CheckType(t StaticType) bool

CheckType checks if operator can be applied to given type.

func (BinaryOp) IsArithmetic 

func (op BinaryOp) IsArithmetic() bool

IsArithmetic whether op is arithmetic operator.

func (BinaryOp) IsBoolean 

func (op BinaryOp) IsBoolean() bool

IsBoolean whether op have boolean result.

func (BinaryOp) IsEqual 

func (op BinaryOp) IsEqual() bool

IsEqual whether op is equal operator.

func (BinaryOp) IsLogic 

func (op BinaryOp) IsLogic() bool

IsLogic whether op is logic operator.

func (BinaryOp) IsOrdering 

func (op BinaryOp) IsOrdering() bool

IsOrdering whether op is ordering operator.

func (BinaryOp) IsRegex 

func (op BinaryOp) IsRegex() bool

IsRegex whether op is regexp operator.

func (BinaryOp) Precedence 

func (op BinaryOp) Precedence() int

Precedence returns operator precedence.

func (BinaryOp) String 

func (op BinaryOp) String() string

String implements fmt.Stringer.

type BinaryScalarExpr 

type BinaryScalarExpr struct {
	Left  ScalarExpr
	Op    BinaryOp
	Right ScalarExpr
}

BinaryScalarExpr is a binary operation between two scalar expressions.

func (*BinaryScalarExpr) ValueType 

func (s *BinaryScalarExpr) ValueType() StaticType

ValueType returns value type of expression.

type BinarySpansetExpr 

type BinarySpansetExpr struct {
	Left  SpansetExpr
	Op    SpansetOp
	Right SpansetExpr
}

BinarySpansetExpr is a binary operation between two spanset expressions.

type CoalesceOperation 

type CoalesceOperation struct{}

CoalesceOperation is a `colaesce()` operation.

type Expr 

type Expr interface {
	// contains filtered or unexported methods
}

Expr is a TraceQL expression.

func Parse 

func Parse(input string) (Expr, error)

Parse parses TraceQL query from string.

type FieldExpr 

type FieldExpr interface {
	TypedExpr
	// contains filtered or unexported methods
}

FieldExpr is a field expression.

type GroupOperation 

type GroupOperation struct {
	By FieldExpr
}

GroupOperation is a `by()` operation.

type PipelineStage 

type PipelineStage interface {
	// contains filtered or unexported methods
}

PipelineStage is a pipeline stage.

type ScalarExpr 

type ScalarExpr interface {
	TypedExpr
	// contains filtered or unexported methods
}

ScalarExpr is a scalar expression.

type ScalarFilter 

type ScalarFilter struct {
	Left  ScalarExpr
	Op    BinaryOp
	Right ScalarExpr
}

ScalarFilter is a scalar filter.

type SelectOperation 

type SelectOperation struct {
	Args []FieldExpr
}

SelectOperation is a `select()` operation.

type SpanProperty 

type SpanProperty uint8

SpanProperty is a span property. 

const (
	SpanAttribute SpanProperty = iota
	SpanDuration
	SpanChildCount
	SpanName
	SpanStatus
	SpanKind
	SpanParent
	RootSpanName
	RootServiceName
	TraceDuration
)

type SpansetExpr 

type SpansetExpr interface {
	PipelineStage
	// contains filtered or unexported methods
}

SpansetExpr is a spanset expression.

type SpansetFilter 

type SpansetFilter struct {
	Expr FieldExpr // if filter is empty, expr is True
}

SpansetFilter is a spanset filter.

type SpansetOp 

type SpansetOp int

SpansetOp defines spanset operator. 

const (
	SpansetOpAnd SpansetOp = iota + 1
	SpansetOpChild
	SpansetOpDescendant
	SpansetOpUnion
	SpansetOpSibling
)

func (SpansetOp) Precedence 

func (op SpansetOp) Precedence() int

Precedence returns operator precedence.

func (SpansetOp) String 

func (op SpansetOp) String() string

String implements fmt.Stringer.

type SpansetPipeline 

type SpansetPipeline struct {
	Pipeline []PipelineStage
}

SpansetPipeline is a spanset pipeline.

type Static 

type Static struct {
	Type StaticType
	Data uint64 // stores everything, except strings
	Str  string
}

Static is a constant value.

func (*Static) AsBool 

func (s *Static) AsBool() bool

AsBool returns Bool value.

func (*Static) AsDuration 

func (s *Static) AsDuration() time.Duration

AsDuration returns Duration value.

func (*Static) AsFloat 

func (s *Static) AsFloat() float64

AsFloat converts numeric Static to a float value.

func (*Static) AsInt 

func (s *Static) AsInt() int64

AsInt returns Int value.

func (*Static) AsNumber 

func (s *Static) AsNumber() float64

AsNumber returns Number value.

func (*Static) AsSpanKind 

func (s *Static) AsSpanKind() ptrace.SpanKind

AsSpanKind returns SpanKind value.

func (*Static) AsSpanStatus 

func (s *Static) AsSpanStatus() ptrace.StatusCode

AsSpanStatus returns SpanStatus value.

func (*Static) AsString 

func (s *Static) AsString() string

AsString returns String value.

func (*Static) Compare 

func (s *Static) Compare(to Static) int

Compare compares two Static values.

func (*Static) IsNil 

func (s *Static) IsNil() bool

IsNil returns true, if static is Nil.

func (*Static) SetBool 

func (s *Static) SetBool(v bool)

SetBool sets Bool value.

func (*Static) SetDuration 

func (s *Static) SetDuration(v time.Duration)

SetDuration sets Duration value.

func (*Static) SetInt 

func (s *Static) SetInt(v int64)

SetInt sets Int value.

func (*Static) SetNil 

func (s *Static) SetNil()

SetNil sets Nil value.

func (*Static) SetNumber 

func (s *Static) SetNumber(v float64)

SetNumber sets Number value.

func (*Static) SetOTELValue 

func (s *Static) SetOTELValue(val pcommon.Value) bool

SetOTELValue sets value from given OpenTelemetry data value.

SetOTELValue returns false, if pcommon.Value cannot be represent as Static.

func (*Static) SetSpanKind 

func (s *Static) SetSpanKind(kind ptrace.SpanKind)

SetSpanKind sets SpanKind value.

func (*Static) SetSpanStatus 

func (s *Static) SetSpanStatus(status ptrace.StatusCode)

SetSpanStatus sets SpanStatus value.

func (*Static) SetString 

func (s *Static) SetString(v string)

SetString sets String value.

func (*Static) ValueType 

func (s *Static) ValueType() StaticType

ValueType returns value type of expression.

type StaticType 

type StaticType int

StaticType defines static type. 

const (
	TypeAttribute StaticType = iota
	TypeString
	TypeInt
	TypeNumber
	TypeBool
	TypeNil
	TypeDuration
	TypeSpanStatus
	TypeSpanKind
)

func (StaticType) CheckOperand 

func (s StaticType) CheckOperand(s2 StaticType) bool

CheckOperand whether is a and b are valid operands.

func (StaticType) IsNumeric 

func (s StaticType) IsNumeric() bool

IsNumeric returns true if type is numeric.

func (StaticType) String 

func (s StaticType) String() string

String implements fmt.Stringer.

type SyntaxError 

type SyntaxError struct {
	Msg string
	Pos scanner.Position
}

SyntaxError is a syntax error.

func (*SyntaxError) Error 

func (e *SyntaxError) Error() string

Error implements error.

type TypeError 

type TypeError struct {
	Msg string
	Pos scanner.Position
}

TypeError is a type checking error.

func (*TypeError) Error 

func (e *TypeError) Error() string

Error implements error.

type TypedExpr 

type TypedExpr interface {
	ValueType() StaticType
}

TypedExpr is an interface for typed expression.

type UnaryFieldExpr 

type UnaryFieldExpr struct {
	Expr FieldExpr
	Op   UnaryOp
}

UnaryFieldExpr is a unary field expression operation.

func (*UnaryFieldExpr) ValueType 

func (s *UnaryFieldExpr) ValueType() StaticType

ValueType returns value type of expression.

type UnaryOp 

type UnaryOp int

UnaryOp defines unary operator. 

const (
	OpNot UnaryOp = iota + 1
	OpNeg
)

func (UnaryOp) CheckType 

func (op UnaryOp) CheckType(t StaticType) bool

CheckType checks if operator can be applied to given type.

func (UnaryOp) String 

func (op UnaryOp) String() string

String implements fmt.Stringer.

Source Files

View all Source files

Directories

Path Synopsis
Package lexer contains TraceQL lexer.
 Package lexer contains TraceQL lexer.
Package traceqlengine implements TraceQL evaluation engine.
 Package traceqlengine implements TraceQL evaluation engine.

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