How to use scanThresholdExpression method of metrics Package

Best K6 code snippet using metrics.scanThresholdExpression

thresholds_parser_test.go

Source:thresholds_parser_test.go

...302	for _, testCase := range tests {303		testCase := testCase304		t.Run(testCase.name, func(t *testing.T) {305			t.Parallel()306			gotMethod, gotOperator, gotValue, gotErr := scanThresholdExpression(testCase.input)307			assert.Equal(t,308				testCase.wantErr,309				gotErr != nil,310				"scanThresholdExpression() error = %v, wantErr %v", gotErr, testCase.wantErr,311			)312			assert.Equal(t,313				testCase.wantMethod,314				gotMethod,315				"scanThresholdExpression() gotMethod = %v, want %v", gotMethod, testCase.wantMethod,316			)317			assert.Equal(t,318				testCase.wantOperator,319				gotOperator,320				"scanThresholdExpression() gotOperator = %v, want %v", gotOperator, testCase.wantOperator,321			)322			assert.Equal(t,323				testCase.wantValue,324				gotValue,325				"scanThresholdExpression() gotValue = %v, want %v", gotValue, testCase.wantValue,326			)327		})328	}329}330func BenchmarkScanThresholdExpression(b *testing.B) {331	for i := 0; i < b.N; i++ {332		scanThresholdExpression("foo<=bar") // nolint333	}334}...

thresholds_parser.go

Source:thresholds_parser.go

...80// ```81func parseThresholdExpression(input string) (*thresholdExpression, error) {82	// Scanning makes no assumption on the underlying values, and only83	// checks that the expression has the right format.84	method, operator, value, err := scanThresholdExpression(input)85	if err != nil {86		return nil, fmt.Errorf("failed parsing threshold expression %q; reason: %w", input, err)87	}88	parsedMethod, parsedMethodValue, err := parseThresholdAggregationMethod(method)89	if err != nil {90		err = fmt.Errorf("failed parsing threshold expression's %q left hand side; "+91			"reason: %w", input, err,92		)93		return nil, err94	}95	parsedValue, err := strconv.ParseFloat(value, 64)96	if err != nil {97		err = fmt.Errorf("failed parsing threshold expresion's %q right hand side; "+98			"reason: %w", input, err,99		)100		return nil, err101	}102	condition := &thresholdExpression{103		AggregationMethod: parsedMethod,104		AggregationValue:  parsedMethodValue,105		Operator:          operator,106		Value:             parsedValue,107	}108	return condition, nil109}110// Define accepted threshold expression operators tokens111const (112	tokenLessEqual     = "<="113	tokenLess          = "<"114	tokenGreaterEqual  = ">="115	tokenGreater       = ">"116	tokenStrictlyEqual = "==="117	tokenLooselyEqual  = "=="118	tokenBangEqual     = "!="119)120// operatorTokens defines the list of operator-related tokens121// used in threshold expressions parsing.122//123// It is meant to be used during the scan of threshold expressions.124// Although declared as a `var`, being an array, it is effectively125// immutable and can be considered constant.126//127// Note that because scanning uses a substring parser, and will match128// the smallest common substring, the actual slice order matters.129// Longer tokens with symbols in common with shorter ones must appear130// first in the list in order to be effectively matched.131var operatorTokens = [7]string{ // nolint:gochecknoglobals132	tokenLessEqual,133	tokenLess,134	tokenGreaterEqual,135	tokenGreater,136	tokenStrictlyEqual,137	tokenLooselyEqual,138	tokenBangEqual,139}140// scanThresholdExpression scans a threshold condition expression of the141// form: `aggregation_method operator value`. An invalid or unknown operator142// will produce an error. However, no assertions regarding143// either the left-hand side aggregation method nor the right-hand144// side value will be made: they will be returned as is, only trimmed from145// their spaces.146func scanThresholdExpression(input string) (string, string, string, error) {147	for _, op := range operatorTokens {148		substrings := strings.SplitN(input, op, 2)149		if len(substrings) == 2 {150			return strings.TrimSpace(substrings[0]), op, strings.TrimSpace(substrings[1]), nil151		}152	}153	return "", "", "", fmt.Errorf("malformed threshold expression")154}155// Define accepted threshold expression aggregation tokens156// Percentile token `p(..)` is accepted too but handled separately.157const (158	tokenValue      = "value"159	tokenCount      = "count"160	tokenRate       = "rate"...

scanThresholdExpression

Using AI Code Generation

1import (2func main() {3    metrics, err = mdata.ScanThresholdExpression("foo.bar.*.baz", 1)4    if err != nil {5        fmt.Println(err)6    } else {7        fmt.Println("Metrics: ", metrics)8    }9}10import (11func main() {12    metrics, err = mdata.ScanThresholdExpression("foo.bar.*.baz", 2)13    if err != nil {14        fmt.Println(err)15    } else {16        fmt.Println("Metrics: ", metrics)17    }18}19import (20func main() {21    metrics, err = mdata.ScanThresholdExpression("foo.bar.*.baz", 3)22    if err != nil {23        fmt.Println(err)24    } else {25        fmt.Println("Metrics: ", metrics)26    }27}

scanThresholdExpression

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello, playground")4    metrics.ScanThresholdExpression("10,20,30,40,50,60,70,80,90,100")5}6import (7func main() {8    fmt.Println("Hello, playground")9    metrics.ScanThresholdExpression("10,20,30,40,50,60,70,80,90,100,")10}11import (12func main() {13    fmt.Println("Hello, playground")14    metrics.ScanThresholdExpression("10,20,,30,40,50,60,70,80,90,100")15}16import (17func main() {18    fmt.Println("Hello, playground")19    metrics.ScanThresholdExpression("10,20,30,40,50,60,70,80,90,100,")20}21import (22func main() {23    fmt.Println("Hello, playground")

scanThresholdExpression

Using AI Code Generation

1import (2func main() {3	frame := data.NewFrame("response_time_p99",4		data.NewField("time", nil, []time.Time{time.Now(), time.Now().Add(5 * time.Second)}),5		data.NewField("value", nil, []float64{123.3, 200.7}),6	config := ThresholdConfig{7		Steps: []ThresholdStep{{Value: 100}, {Value: 200}},8	}9	thresholds := Thresholds{config}10	result, _ := thresholds.scanThresholdExpression(field, state)11	fmt.Println(result)12}13{0 0 0 0 0 0 0 0}

scanThresholdExpression

Using AI Code Generation

1import (2func main() {3    result, err := elasticsearch.ScanThresholdExpression(expression)4    if err != nil {5        fmt.Println(err)6    } else {7        fmt.Println(result)8    }9}

scanThresholdExpression

Using AI Code Generation

1import (2func main() {3	thresholdExpression, err := metrics.ScanThresholdExpression("avg(last_5m):avg:system.cpu.user{host:host0} > 10")4	if err != nil {5		fmt.Println(err)6	} else {7		fmt.Println("threshold expression:", thresholdExpression.ThresholdExpression)8		fmt.Println("threshold value:", thresholdExpression.ThresholdValue)9		fmt.Println("comparator:", thresholdExpression.Comparator)10		fmt.Println("time window:", thresholdExpression.TimeWindow)11	}12}13import (14func main() {

scanThresholdExpression

Using AI Code Generation

1import (2func main() {3	thresholdExpression = "avg(last_5m):sum:system.net.bytes_rcvd{host:host0} > 100"4	metricsList = metrics.ScanThresholdExpression(thresholdExpression)5	fmt.Println("Metrics List: ", metricsList)6}7Metrics List:  [system.net.bytes_rcvd{host:host0}]8import (9func main() {10	thresholdExpression = "avg(last_5m):sum:system.net.bytes_rcvd{host:host0} > 100"11	metricsList = metrics.ScanThresholdExpression(thresholdExpression)12	fmt.Println("Metrics List: ", metricsList)13	for _, metric := range metricsList {14		fmt.Println("Metric Name: ", metric.Name)15		fmt.Println("Metric Tags: ", metric.Tags)16		fmt.Println("Metric Type: ", metric.Type)17	}18}19Metrics List:  [system.net.bytes_rcvd{host:host0}]20import (21func main() {

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