97 lines
2.2 KiB
Go
97 lines
2.2 KiB
Go
package models
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import (
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"sync"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/selfstat"
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)
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type RunningProcessor struct {
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sync.Mutex
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log telegraf.Logger
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Processor telegraf.Processor
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Config *ProcessorConfig
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}
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type RunningProcessors []*RunningProcessor
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func (rp RunningProcessors) Len() int { return len(rp) }
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func (rp RunningProcessors) Swap(i, j int) { rp[i], rp[j] = rp[j], rp[i] }
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func (rp RunningProcessors) Less(i, j int) bool { return rp[i].Config.Order < rp[j].Config.Order }
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// FilterConfig containing a name and filter
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type ProcessorConfig struct {
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Name string
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Alias string
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Order int64
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Filter Filter
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}
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func NewRunningProcessor(processor telegraf.Processor, config *ProcessorConfig) *RunningProcessor {
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logger := &Logger{
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Name: logName("processors", config.Name, config.Alias),
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Errs: selfstat.Register("process", "errors",
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map[string]string{"input": config.Name, "alias": config.Alias}),
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}
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setLogIfExist(processor, logger)
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return &RunningProcessor{
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Processor: processor,
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Config: config,
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log: logger,
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}
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}
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func (rp *RunningProcessor) metricFiltered(metric telegraf.Metric) {
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metric.Drop()
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}
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func containsMetric(item telegraf.Metric, metrics []telegraf.Metric) bool {
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for _, m := range metrics {
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if item == m {
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return true
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}
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}
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return false
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}
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func (r *RunningProcessor) Init() error {
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if p, ok := r.Processor.(telegraf.Initializer); ok {
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err := p.Init()
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if err != nil {
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return err
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}
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}
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return nil
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}
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func (rp *RunningProcessor) Apply(in ...telegraf.Metric) []telegraf.Metric {
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rp.Lock()
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defer rp.Unlock()
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ret := []telegraf.Metric{}
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for _, metric := range in {
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// In processors when a filter selects a metric it is sent through the
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// processor. Otherwise the metric continues downstream unmodified.
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if ok := rp.Config.Filter.Select(metric); !ok {
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ret = append(ret, metric)
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continue
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}
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rp.Config.Filter.Modify(metric)
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if len(metric.FieldList()) == 0 {
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rp.metricFiltered(metric)
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continue
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}
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// This metric should pass through the filter, so call the filter Apply
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// function and append results to the output slice.
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ret = append(ret, rp.Processor.Apply(metric)...)
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}
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return ret
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}
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