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Published: Jan 27, 2021 License: Apache-2.0 Imports: 5 Imported by: 0



Package filtermetric is a helper package for processing metrics.



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const (
	Regexp           = MatchType(filterset.Regexp)
	Strict           = MatchType(filterset.Strict)
	Expr   MatchType = "expr"

These are the MatchTypes that users can specify for filtering `pdata.Metric`s.


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type MatchProperties

type MatchProperties struct {
	// MatchType specifies the type of matching desired
	MatchType MatchType `mapstructure:"match_type"`
	// RegexpConfig specifies options for the Regexp match type
	RegexpConfig *regexp.Config `mapstructure:"regexp"`

	// MetricNames specifies the list of string patterns to match metric names against.
	// A match occurs if the metric name matches at least one string pattern in this list.
	MetricNames []string `mapstructure:"metric_names"`

	// Expressions specifies the list of expr expressions to match metrics against.
	// A match occurs if any datapoint in a metric matches at least one expression in this list.
	Expressions []string `mapstructure:"expressions"`

	// ResourceAttributes defines a list of possible resource attributes to match metrics against.
	// A match occurs if any resource attribute matches at least one expression in this given list.
	ResourceAttributes []filterconfig.Attribute `mapstructure:"resource_attributes"`

MatchProperties specifies the set of properties in a metric to match against and the type of string pattern matching to use.

type MatchType

type MatchType string

MatchType specifies the strategy for matching against `pdata.Metric`s. This is distinct from filterset.MatchType which matches against metric (and tracing) names only. To support matching against metric names and `pdata.Metric`s, filtermetric.MatchType is effectively a superset of filterset.MatchType.

type Matcher

type Matcher interface {
	MatchMetric(metric pdata.Metric) (bool, error)

func NewMatcher

func NewMatcher(config *MatchProperties) (Matcher, error)

NewMatcher constructs a metric Matcher. If an 'expr' match type is specified, returns an expr matcher, otherwise a name matcher.

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