logql

package

v0.1.0 Latest Latest Go to latest Published: Jun 3, 2019 License: Apache-2.0 Imports: 8 Imported by: 0

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Repository

github.com/pracucci/loki

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Documentation ¶

Index ¶

Constants
func ParseMatchers(input string) ([]*labels.Matcher, error)
type Expr
- func NewFilterExpr(left Expr, ty labels.MatchType, match string) Expr
- func ParseExpr(input string) (Expr, error)
type ParseError
- func (p ParseError) Error() string
type Querier
type QuerierFunc
- func (q QuerierFunc) Query(ms []*labels.Matcher) (iter.EntryIterator, error)

Constants ¶

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const CLOSE_BRACE = 57355

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const COMMA = 57356

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const DOT = 57357

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const EQ = 57350

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const IDENTIFIER = 57346

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const LABELS = 57349

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const MATCHERS = 57348

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const NEQ = 57351

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const NRE = 57353

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const OPEN_BRACE = 57354

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const PIPE_EXACT = 57359

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const PIPE_MATCH = 57358

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const RE = 57352

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const STRING = 57347

Variables ¶

This section is empty.

Functions ¶

func ParseMatchers ¶

func ParseMatchers(input string) ([]*labels.Matcher, error)

ParseMatchers parses a string and returns labels matchers, if the expression contains anything else it will return an error.

Types ¶

type Expr ¶

type Expr interface {
	Eval(Querier) (iter.EntryIterator, error)
}

Expr is a LogQL expression.

func NewFilterExpr ¶

func NewFilterExpr(left Expr, ty labels.MatchType, match string) Expr

NewFilterExpr wraps an existing Expr with a next filter expression.

func ParseExpr ¶

func ParseExpr(input string) (Expr, error)

ParseExpr parses a string and returns an Expr.

type ParseError ¶

type ParseError struct {
	// contains filtered or unexported fields
}

ParseError is what is returned when we failed to parse.

func (ParseError) Error ¶

func (p ParseError) Error() string

type Querier ¶

type Querier interface {
	Query([]*labels.Matcher) (iter.EntryIterator, error)
}

Querier allows a LogQL expression to fetch an EntryIterator for a set of matchers.

type QuerierFunc ¶

type QuerierFunc func([]*labels.Matcher) (iter.EntryIterator, error)

QuerierFunc implements Querier.

func (QuerierFunc) Query ¶

func (q QuerierFunc) Query(ms []*labels.Matcher) (iter.EntryIterator, error)

Query implements Querier.

Source Files ¶

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