in appinsights/transmitter.go [183:224]
func (result *transmissionResult) GetRetryItems(payload []byte, items telemetryBufferItems) ([]byte, telemetryBufferItems) {
if result.statusCode == partialSuccessResponse && result.response != nil {
// Make sure errors are ordered by index
sort.Sort(result.response.Errors)
var resultPayload bytes.Buffer
resultItems := make(telemetryBufferItems, 0)
ptr := 0
idx := 0
// Find each retryable error
for _, responseResult := range result.response.Errors {
if responseResult.CanRetry() {
// Advance ptr to start of desired line
for ; idx < responseResult.Index && ptr < len(payload); ptr++ {
if payload[ptr] == '\n' {
idx++
}
}
startPtr := ptr
// Read to end of line
for ; idx == responseResult.Index && ptr < len(payload); ptr++ {
if payload[ptr] == '\n' {
idx++
}
}
// Copy item into output buffer
resultPayload.Write(payload[startPtr:ptr])
resultItems = append(resultItems, items[responseResult.Index])
}
}
return resultPayload.Bytes(), resultItems
} else if result.CanRetry() {
return payload, items
} else {
return payload[:0], items[:0]
}
}