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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| import logging | ||
| from typing import Type, Union | ||
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| from prometheus_client import Counter, Enum, start_http_server | ||
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| class OpenCTIMetricHandler: | ||
| def __init__(self, activated: bool = False, port: int = 9095): | ||
| """ | ||
| Init of OpenCTIMetricHandler class. | ||
| Parameters | ||
| ---------- | ||
| activated : bool, default False | ||
| If True use metrics in client and connectors. | ||
| port : int, default 9095 | ||
| Port for prometheus server. | ||
| """ | ||
| self.activated = activated | ||
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| if self.activated: | ||
| logging.info(f"Exposing metrics on port {port}") | ||
| start_http_server(port) | ||
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| self._metrics = { | ||
| "bundle_send": Counter( | ||
| "bundle_send", | ||
| "Number of bundle send", | ||
| ), | ||
| "record_send": Counter( | ||
| "record_send", | ||
| "Number of record (objects per bundle) send", | ||
| ), | ||
| "run_count": Counter( | ||
| "run_count", | ||
| "Number of run", | ||
| ), | ||
| "ping_api_count": Counter( | ||
| "ping_api_count", | ||
| "Number of ping to the api", | ||
| ), | ||
| "ping_api_error": Counter( | ||
| "ping_api_error", | ||
| "Number of error when pinging the api", | ||
| ), | ||
| "error_count": Counter( | ||
| "error_count", | ||
| "Number of error", | ||
| ), | ||
| "client_error_count": Counter( | ||
| "client_error_count", | ||
| "Number of client error", | ||
| ), | ||
| "state": Enum( | ||
| "state", "State of connector", states=["idle", "running", "stopped"] | ||
| ), | ||
| } | ||
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| def _metric_exists( | ||
| self, name: str, expected_type: Union[Type[Counter], Type[Enum]] | ||
| ) -> bool: | ||
| """ | ||
| Check if a metric exists and has the correct type. | ||
| If it does not, log an error and return False. | ||
| Parameters | ||
| ---------- | ||
| name : str | ||
| Name of the metric to check. | ||
| expected_type : Counter or Enum | ||
| Expected type of the metric. | ||
| Returns | ||
| ------- | ||
| bool | ||
| True if the metric exists and is of the correct type else False. | ||
| """ | ||
| if name not in self._metrics: | ||
| logging.error(f"Metric {name} does not exist.") | ||
| return False | ||
| if not isinstance(self._metrics[name], expected_type): | ||
| logging.error(f"Metric {name} is not of expected type {expected_type}.") | ||
| return False | ||
| return True | ||
|
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| def inc(self, name: str, n: int = 1): | ||
| """ | ||
| Increment the metric (counter) `name` by `n`. | ||
| Parameters | ||
| ---------- | ||
| name : str | ||
| Name of the metric to increment. | ||
| n : int, default 1 | ||
| Increment the counter by `n`. | ||
| """ | ||
| if self.activated: | ||
| if self._metric_exists(name, Counter): | ||
| self._metrics[name].inc(n) | ||
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| def state(self, state: str, name: str = "state"): | ||
| """ | ||
| Set the state `state` for metric `name`. | ||
| Parameters | ||
| ---------- | ||
| state : str | ||
| State to set. | ||
| name : str, default = "state" | ||
| Name of the metric to set. | ||
| """ | ||
| if self.activated: | ||
| if self._metric_exists(name, Enum): | ||
| self._metrics[name].state(state) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| from unittest import TestCase | ||
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| from prometheus_client import Counter, Enum | ||
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| from pycti import OpenCTIMetricHandler | ||
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| class TestOpenCTIMetricHandler(TestCase): | ||
| def test_metric_exists(self): | ||
| metric = OpenCTIMetricHandler(activated=True) | ||
| self.assertTrue(metric._metric_exists("error_count", Counter)) | ||
| self.assertFalse(metric._metric_exists("error_count", Enum)) | ||
| self.assertFalse(metric._metric_exists("best_metric_count", Counter)) |
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