# How to use Has method of metrics Package

Best K6 code snippet using metrics.Has

accumulator.go

Source:accumulator.go

`...207 }208 }209 return nil, false210}211func (a *Accumulator) HasTag(measurement string, key string) bool {212 for _, p := range a.Metrics {213 if p.Measurement == measurement {214 _, ok := p.Tags[key]215 return ok216 }217 }218 return false219}220func (a *Accumulator) TagValue(measurement string, key string) string {221 for _, p := range a.Metrics {222 if p.Measurement == measurement {223 v, ok := p.Tags[key]224 if !ok {225 return ""226 }227 return v228 }229 }230 return ""231}232// Calls the given Gather function and returns the first error found.233func (a *Accumulator) GatherError(gf func(telegraf.Accumulator) error) error {234 if err := gf(a); err != nil {235 return err236 }237 if len(a.Errors) > 0 {238 return a.Errors[0]239 }240 return nil241}242// NFields returns the total number of fields in the accumulator, across all243// measurements244func (a *Accumulator) NFields() int {245 a.Lock()246 defer a.Unlock()247 counter := 0248 for _, pt := range a.Metrics {249 for range pt.Fields {250 counter++251 }252 }253 return counter254}255// Wait waits for the given number of metrics to be added to the accumulator.256func (a *Accumulator) Wait(n int) {257 a.Lock()258 if a.Cond == nil {259 a.Cond = sync.NewCond(&a.Mutex)260 }261 for int(a.NMetrics()) < n {262 a.Cond.Wait()263 }264 a.Unlock()265}266// WaitError waits for the given number of errors to be added to the accumulator.267func (a *Accumulator) WaitError(n int) {268 a.Lock()269 if a.Cond == nil {270 a.Cond = sync.NewCond(&a.Mutex)271 }272 for len(a.Errors) < n {273 a.Cond.Wait()274 }275 a.Unlock()276}277func (a *Accumulator) AssertContainsTaggedFields(278 t *testing.T,279 measurement string,280 fields map[string]interface{},281 tags map[string]string,282) {283 a.Lock()284 defer a.Unlock()285 for _, p := range a.Metrics {286 if !reflect.DeepEqual(tags, p.Tags) {287 continue288 }289 if p.Measurement == measurement && reflect.DeepEqual(fields, p.Fields) {290 return291 }292 }293 msg := fmt.Sprintf("unknown measurement %s with tags %v", measurement, tags)294 assert.Fail(t, msg)295}296func (a *Accumulator) AssertDoesNotContainsTaggedFields(297 t *testing.T,298 measurement string,299 fields map[string]interface{},300 tags map[string]string,301) {302 a.Lock()303 defer a.Unlock()304 for _, p := range a.Metrics {305 if !reflect.DeepEqual(tags, p.Tags) {306 continue307 }308 if p.Measurement == measurement && reflect.DeepEqual(fields, p.Fields) {309 msg := fmt.Sprintf(310 "found measurement %s with tagged fields (tags %v) which should not be there",311 measurement, tags)312 assert.Fail(t, msg)313 }314 }315 return316}317func (a *Accumulator) AssertContainsFields(318 t *testing.T,319 measurement string,320 fields map[string]interface{},321) {322 a.Lock()323 defer a.Unlock()324 for _, p := range a.Metrics {325 if p.Measurement == measurement {326 assert.Equal(t, fields, p.Fields)327 return328 }329 }330 msg := fmt.Sprintf("unknown measurement %s", measurement)331 assert.Fail(t, msg)332}333func (a *Accumulator) HasPoint(334 measurement string,335 tags map[string]string,336 fieldKey string,337 fieldValue interface{},338) bool {339 a.Lock()340 defer a.Unlock()341 for _, p := range a.Metrics {342 if p.Measurement != measurement {343 continue344 }345 if !reflect.DeepEqual(tags, p.Tags) {346 continue347 }348 v, ok := p.Fields[fieldKey]349 if ok && reflect.DeepEqual(v, fieldValue) {350 return true351 }352 }353 return false354}355func (a *Accumulator) AssertDoesNotContainMeasurement(t *testing.T, measurement string) {356 a.Lock()357 defer a.Unlock()358 for _, p := range a.Metrics {359 if p.Measurement == measurement {360 msg := fmt.Sprintf("found unexpected measurement %s", measurement)361 assert.Fail(t, msg)362 }363 }364}365// HasTimestamp returns true if the measurement has a matching Time value366func (a *Accumulator) HasTimestamp(measurement string, timestamp time.Time) bool {367 a.Lock()368 defer a.Unlock()369 for _, p := range a.Metrics {370 if p.Measurement == measurement {371 return timestamp.Equal(p.Time)372 }373 }374 return false375}376// HasField returns true if the given measurement has a field with the given377// name378func (a *Accumulator) HasField(measurement string, field string) bool {379 a.Lock()380 defer a.Unlock()381 for _, p := range a.Metrics {382 if p.Measurement == measurement {383 if _, ok := p.Fields[field]; ok {384 return true385 }386 }387 }388 return false389}390// HasIntField returns true if the measurement has an Int value391func (a *Accumulator) HasIntField(measurement string, field string) bool {392 a.Lock()393 defer a.Unlock()394 for _, p := range a.Metrics {395 if p.Measurement == measurement {396 for fieldname, value := range p.Fields {397 if fieldname == field {398 _, ok := value.(int)399 return ok400 }401 }402 }403 }404 return false405}406// HasInt64Field returns true if the measurement has an Int64 value407func (a *Accumulator) HasInt64Field(measurement string, field string) bool {408 a.Lock()409 defer a.Unlock()410 for _, p := range a.Metrics {411 if p.Measurement == measurement {412 for fieldname, value := range p.Fields {413 if fieldname == field {414 _, ok := value.(int64)415 return ok416 }417 }418 }419 }420 return false421}422// HasInt32Field returns true if the measurement has an Int value423func (a *Accumulator) HasInt32Field(measurement string, field string) bool {424 a.Lock()425 defer a.Unlock()426 for _, p := range a.Metrics {427 if p.Measurement == measurement {428 for fieldname, value := range p.Fields {429 if fieldname == field {430 _, ok := value.(int32)431 return ok432 }433 }434 }435 }436 return false437}438// HasStringField returns true if the measurement has an String value439func (a *Accumulator) HasStringField(measurement string, field string) bool {440 a.Lock()441 defer a.Unlock()442 for _, p := range a.Metrics {443 if p.Measurement == measurement {444 for fieldname, value := range p.Fields {445 if fieldname == field {446 _, ok := value.(string)447 return ok448 }449 }450 }451 }452 return false453}454// HasUIntField returns true if the measurement has a UInt value455func (a *Accumulator) HasUIntField(measurement string, field string) bool {456 a.Lock()457 defer a.Unlock()458 for _, p := range a.Metrics {459 if p.Measurement == measurement {460 for fieldname, value := range p.Fields {461 if fieldname == field {462 _, ok := value.(uint64)463 return ok464 }465 }466 }467 }468 return false469}470// HasFloatField returns true if the given measurement has a float value471func (a *Accumulator) HasFloatField(measurement string, field string) bool {472 a.Lock()473 defer a.Unlock()474 for _, p := range a.Metrics {475 if p.Measurement == measurement {476 for fieldname, value := range p.Fields {477 if fieldname == field {478 _, ok := value.(float64)479 return ok480 }481 }482 }483 }484 return false485}486// HasMeasurement returns true if the accumulator has a measurement with the487// given name488func (a *Accumulator) HasMeasurement(measurement string) bool {489 a.Lock()490 defer a.Unlock()491 for _, p := range a.Metrics {492 if p.Measurement == measurement {493 return true494 }495 }496 return false497}498// IntField returns the int value of the given measurement and field or false.499func (a *Accumulator) IntField(measurement string, field string) (int, bool) {500 a.Lock()501 defer a.Unlock()502 for _, p := range a.Metrics {...`

filtering.go

Source:filtering.go

`...44 }45 }46 return enabledMetrics47}48// HasEnabledMetricInGroup returns true if there are any metrics enabled that49// fall into the given group.50func (mf *monitorFiltering) HasEnabledMetricInGroup(group string) bool {51 if mf.metadata == nil {52 return false53 }54 for _, m := range mf.EnabledMetrics() {55 // TODO: If metric names in metadata.yaml ever support wildcards this56 // will have to be enhanced.57 if mf.metadata.Metrics[m].Group == group {58 return true59 }60 }61 return false62}63// HasAnyExtraMetrics returns true if there is any custom metric64// enabled for this output instance.65func (mf *monitorFiltering) HasAnyExtraMetrics() bool {66 return mf.hasExtraMetrics67}68func buildFilterSet(metadata *Metadata, conf config.MonitorCustomConfig) (*dpfilters.FilterSet, error) {69 coreConfig := conf.MonitorConfigCore()70 filter, err := coreConfig.FilterSet()71 if err != nil {72 return nil, err73 }74 excludeFilters := []dpfilters.DatapointFilter{filter}75 // If sendAll is true or there are no metrics don't bother setting up76 // filtering77 if metadata != nil && len(metadata.Metrics) > 0 && !metadata.SendAll {78 // Make a copy of extra metrics from config so we don't alter what the user configured.79 extraMetrics := append([]string{}, coreConfig.ExtraMetrics...)80 // Monitors can add additional extra metrics to allow through such as based on config flags.81 if monitorExtra, ok := conf.(config.ExtraMetrics); ok {82 extraMetrics = append(extraMetrics, monitorExtra.GetExtraMetrics()...)83 }84 includedMetricsFilter, err := newMetricsFilter(metadata, extraMetrics, coreConfig.ExtraGroups)85 if err != nil {86 return nil, fmt.Errorf("unable to construct extraMetrics filter: %s", err)87 }88 // Prepend the included metrics filter.89 excludeFilters = append([]dpfilters.DatapointFilter{dpfilters.Negate(includedMetricsFilter)}, excludeFilters...)90 }91 filterSet := &dpfilters.FilterSet{92 ExcludeFilters: excludeFilters,93 }94 return filterSet, nil95}96var _ dpfilters.DatapointFilter = &extraMetricsFilter{}97// Filter of datapoints based on included status and user configuration of98// extraMetrics and extraGroups.99type extraMetricsFilter struct {100 metadata *Metadata101 extraMetrics map[string]bool102 stringFilter *filter.BasicStringFilter103}104func validateMetricName(metadata *Metadata, metricName string) error {105 if strings.TrimSpace(metricName) == "" {106 return errors.New("metric name cannot be empty")107 }108 if metadata.SendUnknown {109 // The metrics list isn't exhaustive so can't do extra validation.110 return nil111 }112 if strings.ContainsRune(metricName, '*') {113 // Make sure a metric pattern matches at least one metric.114 m, err := filter.NewBasicStringFilter([]string{metricName})115 if err != nil {116 return err117 }118 for metric := range metadata.Metrics {119 if m.Matches(metric) {120 return nil121 }122 }123 logrus.Warnf("extraMetrics: metric pattern '%s' did not match any available metrics for monitor %s",124 metricName, metadata.MonitorType)125 }126 if !metadata.HasMetric(metricName) {127 logrus.Warnf("extraMetrics: metric '%s' does not exist for monitor %s", metricName, metadata.MonitorType)128 }129 return nil130}131func validateGroup(metadata *Metadata, group string) ([]string, error) {132 if strings.TrimSpace(group) == "" {133 return nil, errors.New("group cannot be empty")134 }135 metrics, ok := metadata.GroupMetricsMap[group]136 if !ok {137 logrus.Warnf("extraMetrics: group %s does not exist for monitor %s", group, metadata.MonitorType)138 }139 return metrics, nil140}141func newMetricsFilter(metadata *Metadata, extraMetrics, extraGroups []string) (*extraMetricsFilter, error) {142 var filterItems []string143 for _, metric := range extraMetrics {144 if err := validateMetricName(metadata, metric); err != nil {145 return nil, err146 }147 // If the user specified a metric that's already included no need to add it.148 if !metadata.DefaultMetrics[metric] {149 filterItems = append(filterItems, metric)150 }151 }152 for _, group := range extraGroups {153 metrics, err := validateGroup(metadata, group)154 if err != nil {155 return nil, err156 }157 filterItems = append(filterItems, metrics...)158 }159 basicFilter, err := filter.NewBasicStringFilter(filterItems)160 if err != nil {161 return nil, fmt.Errorf("unable to construct filter with items %s: %s", filterItems, err)162 }163 effectiveMetrics := map[string]bool{}164 // Precompute set of metrics that matches the filter. This isn't a complete165 // set of metrics that are enabled in the case of metrics that aren't included166 // in metadata. But it provides a fast path for known metrics.167 for metric := range metadata.Metrics {168 if basicFilter.Matches(metric) {169 effectiveMetrics[metric] = true170 }171 }172 return &extraMetricsFilter{metadata, effectiveMetrics, basicFilter}, nil173}174func (mf *extraMetricsFilter) Matches(dp *datapoint.Datapoint) bool {175 if len(mf.metadata.Metrics) == 0 {176 // This monitor has no defined metrics so send everything by default.177 return true178 }179 if !mf.metadata.HasMetric(dp.Metric) && mf.metadata.SendUnknown {180 // This metric is unknown to the metadata and the monitor has requested181 // to send all unknown metrics.182 return true183 }184 if mf.metadata.HasDefaultMetric(dp.Metric) {185 // It's an included metric so send by default.186 return true187 }188 if mf.extraMetrics[dp.Metric] {189 // User has explicitly chosen to send this metric (or a group that this metric belongs to).190 return true191 }192 // Lastly check if it matches filter. If it's a known metric from metadata will get matched193 // above so this is a last check for unknown metrics.194 return mf.stringFilter.Matches(dp.Metric)195}...`

`...18 "github.com/stretchr/testify/assert"19 "github.com/google/cadvisor/container"20)21func TestTcpMetricsAreDisabledByDefault(t *testing.T) {22 assert.True(t, ignoreMetrics.Has(container.NetworkTcpUsageMetrics))23 flag.Parse()24 assert.True(t, ignoreMetrics.Has(container.NetworkTcpUsageMetrics))25}26func TestAdvancedTcpMetricsAreDisabledByDefault(t *testing.T) {27 assert.True(t, ignoreMetrics.Has(container.NetworkAdvancedTcpUsageMetrics))28 flag.Parse()29 assert.True(t, ignoreMetrics.Has(container.NetworkAdvancedTcpUsageMetrics))30}31func TestUdpMetricsAreDisabledByDefault(t *testing.T) {32 assert.True(t, ignoreMetrics.Has(container.NetworkUdpUsageMetrics))33 flag.Parse()34 assert.True(t, ignoreMetrics.Has(container.NetworkUdpUsageMetrics))35}36func TestReferencedMemoryMetricsIsDisabledByDefault(t *testing.T) {37 assert.True(t, ignoreMetrics.Has(container.ReferencedMemoryMetrics))38 flag.Parse()39 assert.True(t, ignoreMetrics.Has(container.ReferencedMemoryMetrics))40}41func TestCPUTopologyMetricsAreDisabledByDefault(t *testing.T) {42 assert.True(t, ignoreMetrics.Has(container.CPUTopologyMetrics))43 flag.Parse()44 assert.True(t, ignoreMetrics.Has(container.CPUTopologyMetrics))45}46func TestMemoryNumaMetricsAreDisabledByDefault(t *testing.T) {47 assert.True(t, ignoreMetrics.Has(container.MemoryNumaMetrics))48 flag.Parse()49 assert.True(t, ignoreMetrics.Has(container.MemoryNumaMetrics))50}51func TestEnableAndIgnoreMetrics(t *testing.T) {52 tests := []struct {53 value string54 expected []container.MetricKind55 }{56 {"", []container.MetricKind{}},57 {"disk", []container.MetricKind{container.DiskUsageMetrics}},58 {"disk,tcp,network", []container.MetricKind{container.DiskUsageMetrics, container.NetworkTcpUsageMetrics, container.NetworkUsageMetrics}},59 }60 for _, test := range tests {61 for _, sets := range []container.MetricSet{enableMetrics, ignoreMetrics} {62 assert.NoError(t, sets.Set(test.value))63 assert.Equal(t, len(test.expected), len(sets))64 for _, expected := range test.expected {65 assert.True(t, sets.Has(expected), "Missing %s", expected)66 }67 }68 }69}70func TestToIncludedMetrics(t *testing.T) {71 ignores := []container.MetricSet{72 {73 container.CpuUsageMetrics: struct{}{},74 },75 {},76 container.AllMetrics,77 }78 expected := []container.MetricSet{79 {...`

Has

Using AI Code Generation

`1import (2func main() {3 fmt.Println("Hello, playground")4 g := promauto.NewGauge(prometheus.GaugeOpts{5 })6 g.Set(42)7 g.Inc()8 g.Dec()9 g.Add(5)10 g.Sub(3)11 g.Set(123)12 g.Delete()13 fmt.Println(g.Has())14}15import (16func main() {17 fmt.Println("Hello, playground")18 g := promauto.NewGauge(prometheus.GaugeOpts{19 })20 g.Set(42)21 g.Inc()22 g.Dec()23 g.Add(5)24 g.Sub(3)25 g.Set(123)26 g.Delete()27 fmt.Println(g.Has())28}29import (`

Has

Using AI Code Generation

`1import (2func main() {3 m := metrics.NewCounter()4 m.Inc(1)5 fmt.Println(m.Count())6 fmt.Println(m.Has(1))7}8import (9func main() {10 m := metrics.NewCounter()11 m.Inc(1)12 fmt.Println(m.Count())13 fmt.Println(m.Has(2))14}15import (16func main() {17 m := metrics.NewCounter()18 m.Inc(1)19 fmt.Println(m.Count())20 fmt.Println(m.Has(0))21}22import (23func main() {24 m := metrics.NewCounter()25 m.Inc(1)26 fmt.Println(m.Count())27 fmt.Println(m.Has(-1))28}29import (30func main() {31 m := metrics.NewCounter()32 m.Inc(1)33 fmt.Println(m.Count())34 fmt.Println(m.Has(1))35 m.Inc(1)36 fmt.Println(m.Count())37 fmt.Println(m.Has(2))38}39import (40func main() {41 m := metrics.NewCounter()42 m.Inc(1)43 fmt.Println(m.Count())44 fmt.Println(m.Has(1))45 m.Inc(1)46 fmt.Println(m.Count())47 fmt.Println(m.Has(1))48}`

Has

Using AI Code Generation

`1import (2func main() {3config := cluster.NewConfig()4brokers := []string{"kafka:9092"}5topics := []string{"topic1"}6consumer, err := cluster.NewConsumer(brokers, "group1", topics, config)7if err != nil {8panic(err)9}10defer consumer.Close()11metrics := NewMetrics()12registry := prometheus.NewRegistry()13registry.MustRegister(metrics)14handler := promhttp.HandlerFor(registry, promhttp.HandlerOpts{})15server := &http.Server{16}17go server.ListenAndServe()18for {19select {20case msg, ok := <-consumer.Messages():21if ok {22metrics.IncMessageCount(msg.Topic)23consumer.MarkOffset(msg, "")24}25}26}27}28}`

Has

Using AI Code Generation

`1import (2func main() {3 scope, closer := tally.NewRootScope(tally.ScopeOptions{4 }, 1 * time.Second)5 defer closer.Close()6 scope.Counter("bar").Inc(1)7 scope.Gauge("qux").Update(42)8 scope.Timer("baz").Record(300 * time.Millisecond)9 scope.Histogram("quux", tally.DefaultBuckets).RecordValue(42)10 scope.Histogram("quuz", tally.ValueBuckets([]float64{1, 2, 3})).RecordValue(42)11 has := scope.Snapshot().HasCounters("bar")12 fmt.Println("Has counter bar: ", has)13}14import (15func main() {16 scope, closer := tally.NewRootScope(tally.ScopeOptions{`

Has

Using AI Code Generation

`1import (2func main() {3 fmt.Println("Hello, playground")4 m1 := prometheus.NewCounter(prometheus.CounterOpts{5 })6 m2 := prometheus.NewCounter(prometheus.CounterOpts{7 })8 m3 := prometheus.NewCounter(prometheus.CounterOpts{9 })10 m4 := prometheus.NewCounter(prometheus.CounterOpts{11 })12 m5 := prometheus.NewCounter(prometheus.CounterOpts{13 })14 m6 := prometheus.NewCounter(prometheus.CounterOpts{15 })16 m7 := prometheus.NewCounter(prometheus.CounterOpts{17 })18 m8 := prometheus.NewCounter(prometheus.CounterOpts{19 })20 m9 := prometheus.NewCounter(prometheus.CounterOpts{21 })22 m10 := prometheus.NewCounter(prometheus.CounterOpts{23 })24 m11 := prometheus.NewCounter(prometheus.CounterOpts{25 })26 m12 := prometheus.NewCounter(prometheus.CounterOpts{27 })28 m13 := prometheus.NewCounter(prometheus.CounterOpts{29 })30 m14 := prometheus.NewCounter(prometheus.CounterOpts{31 })32 m15 := prometheus.NewCounter(prometheus.CounterOpts{33 })34 m16 := prometheus.NewCounter(prometheus.CounterOpts{`

Has

Using AI Code Generation

`1import (2func main() {3 m := metrics.NewRegistry()4 c := metrics.NewCounter()5 m.Register("counter", c)6 g := metrics.NewGauge()7 m.Register("gauge", g)8 h := metrics.NewHistogram(metrics.NewUniformSample(100))9 m.Register("histogram", h)10 mt := metrics.NewMeter()11 m.Register("meter", mt)12 t := metrics.NewTimer()13 m.Register("timer", t)14 if m.Has("counter") {15 log.Println("counter exist")16 }17 if !m.Has("foo") {18 log.Println("foo does not exist")19 }20 if m.Has("gauge") {21 log.Println("gauge exist")22 }23 if !m.Has("foo") {24 log.Println("foo does not exist")25 }26 if m.Has("histogram") {27 log.Println("histogram exist")28 }29 if !m.Has("foo") {30 log.Println("foo does not exist")31 }32 if m.Has("meter") {33 log.Println("meter exist")34 }35 if !m.Has("foo") {36 log.Println("foo does not exist")37 }38 if m.Has("timer") {39 log.Println("timer exist")40 }41 if !m.Has("foo") {42 log.Println("foo does not exist")43 }44 time.Sleep(10 * time.Second)45}`

Has

Using AI Code Generation

`1import (2type Metrics struct {3 Has func(string) bool4 Get func(string) (interface{}, bool)5 Set func(string, interface{})6}7func MetricsFactory() *Metrics {8 return &Metrics{9 Has: func(key string) bool { return true },10 Get: func(key string) (interface{}, bool) { return nil, true },11 Set: func(key string, value interface{}) {},12 }13}14func main() {15 metrics := MetricsFactory()16 fmt.Println(metrics.Has("test"))17}`

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