add support of threshold line

analytics/analytics/analytic_types/detector_typing.py

@@ -50,3 +50,11 @@ class AnomalyProcessingResult():
     ):
         self.lower_bound = lower_bound
         self.upper_bound = upper_bound
+@utils.meta.JSONClass
+class ThresholdProcessingResult():
+
+    def __init__(
+        self,
+        threshold: Optional[TimeSeries] = None,
+    ):
+        self.threshold = threshold

analytics/analytics/detectors/threshold_detector.py

@@ -6,9 +6,9 @@ import numpy as np
 from typing import Optional, List
 
 from analytic_types import ModelCache
-from analytic_types.detector_typing import DetectionResult
+from analytic_types.detector_typing import DetectionResult, ThresholdProcessingResult
 from analytic_types.segment import Segment
-from detectors import Detector
+from detectors import ProcessingDetector
 from time import time
 import utils
 
@@ -16,7 +16,7 @@ import utils
 logger = log.getLogger('THRESHOLD_DETECTOR')
 
 
-class ThresholdDetector(Detector):
+class ThresholdDetector(ProcessingDetector):
 
     WINDOW_SIZE = 3
 
@@ -89,3 +89,21 @@ class ThresholdDetector(Detector):
             result.cache = detection.cache
         result.segments = utils.merge_intersecting_segments(result.segments, time_step)
         return result
+
+    def process_data(self, dataframe: pd.DataFrame, cache: ModelCache) -> ThresholdProcessingResult:
+        data = dataframe['value']
+        value = cache['value']
+        data.values[:]  = value
+        timestamps = utils.convert_series_to_timestamp_list(dataframe.timestamp)
+        result_series = list(zip(timestamps, data.values.tolist()))
+        return ThresholdProcessingResult(result_series)
+
+    def concat_processing_results(self, processing_results: List[ThresholdProcessingResult]) -> Optional[ThresholdProcessingResult]:
+        if len(processing_results) == 0:
+            return None
+
+        united_result = ThresholdProcessingResult([])
+        for result in processing_results:
+            united_result.threshold.extend(result.threshold)
+
+        return united_result

server/src/controllers/analytics_controller.ts

@@ -631,10 +631,44 @@ export async function getHSR(
   try {
     const grafanaUrl = getGrafanaUrl(analyticUnit.grafanaUrl);
     const data = await queryByMetric(analyticUnit.metric, grafanaUrl, from, to, HASTIC_API_KEY);
+    let resultSeries = {
+      hsr: data
+    }
 
-    if(analyticUnit.detectorType !== AnalyticUnit.DetectorType.ANOMALY) {
-      return { hsr: data };
+    if(analyticUnit.detectorType === AnalyticUnit.DetectorType.THRESHOLD) {
+      let cache = await AnalyticUnitCache.findById(analyticUnit.id);
+      if(
+        cache === null ||
+        cache.data.alpha !== (analyticUnit as AnalyticUnit.ThresholdAnalyticUnit).value ||
+        cache.data.confidence !== (analyticUnit as AnalyticUnit.ThresholdAnalyticUnit).condition
+      ) {
+        await runLearning(analyticUnit.id, from, to);
+        cache = await AnalyticUnitCache.findById(analyticUnit.id);
       }
+
+      cache = cache.data;
+
+      const analyticUnitType = analyticUnit.type;
+      const detector = analyticUnit.detectorType;
+      const payload = {
+        data: data.values,
+        analyticUnitType,
+        detector,
+        cache
+      };
+
+      const processingTask = new AnalyticsTask(analyticUnit.id, AnalyticsTaskType.PROCESS, payload);
+      const result = await runTask(processingTask);
+      if(result.status !== AnalyticUnit.AnalyticUnitStatus.SUCCESS) {
+        throw new Error(`Data processing error: ${result.error}`);
+      }
+
+      if(result.payload.threshold !== undefined) {
+        resultSeries['threshold'] = { values: result.payload.threshold, columns: data.columns };
+      }
+    }
+
+    if(analyticUnit.detectorType === AnalyticUnit.DetectorType.ANOMALY) {
       let cache = await AnalyticUnitCache.findById(analyticUnit.id);
       if(
         cache === null ||
@@ -662,10 +696,6 @@ export async function getHSR(
         throw new Error(`Data processing error: ${result.error}`);
       }
 
-    let resultSeries = {
-      hsr: data
-    }
-
       if(result.payload.lowerBound !== undefined) {
         resultSeries['lowerBound'] = { values: result.payload.lowerBound, columns: data.columns };
       }
@@ -673,6 +703,7 @@ export async function getHSR(
       if(result.payload.upperBound !== undefined) {
         resultSeries['upperBound'] = { values: result.payload.upperBound, columns: data.columns };
       }
+    }
 
     return resultSeries;
   } catch (err) {