38 lines
806 B
Go
38 lines
806 B
Go
package apm
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import (
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"github.com/Shopify/sarama"
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"github.com/SkyAPM/go2sky/propagation"
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)
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func KafkaExtractor(msg *sarama.ConsumerMessage) propagation.Extractor {
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return func() (s string, e error) {
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if msg == nil || msg.Headers == nil {
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return "", nil
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}
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for _, header := range msg.Headers {
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if string(header.Key) == propagation.Header {
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return string(header.Value), nil
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}
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}
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return "", nil
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}
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}
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func KafkaInjector(msg *sarama.ProducerMessage) propagation.Injector {
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return func(header string) error {
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if msg == nil {
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return nil
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}
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if msg.Headers == nil {
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msg.Headers = []sarama.RecordHeader{}
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}
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sw8Header := sarama.RecordHeader{
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Key: []byte(propagation.Header),
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Value: []byte(header),
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}
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msg.Headers = append(msg.Headers, sw8Header)
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return nil
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}
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}
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