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21 lines
1.1 KiB
Markdown
21 lines
1.1 KiB
Markdown
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This folder contains the receivers for the cc-metric-collector.
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# `metricReceiver.go`
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The base class/configuration is located in `metricReceiver.go`.
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# Receivers
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* `natsReceiver.go`: Receives metrics from the Nats transport system in Influx line protocol encoding. The database name is used as subscription subject for the NATS messages. It uses https://github.com/nats-io/nats.go
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# Installation
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Nothing to do, all receivers are pure Go code
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# Contributing own receivers
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A receiver contains three functions and is derived from the type `Receiver` (in `metricReceiver.go`):
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* `Init(config ReceiverConfig) error`
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* `Start() error`
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* `Close()`
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The data structures should be set up in `Init()` like opening a file or server connection. The `Start()` function should either start a go routine or issue some other asynchronous mechanism for receiving metrics. The `Close()` function should tear down anything created in `Init()`.
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Finally, the receiver needs to be registered in the `metric-collector.go`. There is a list of receivers called `Receivers` which is a map (string -> pointer to receiver). Add a new entry with a descriptive name and the new receiver.
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