Task definition + some refactorings

server/src/controllers/analytics_controller.ts

@@ -1,5 +1,5 @@
 import { Task } from '../models/task_model';
-import * as SegmentsController from '../models/segment_model';
+import * as Segments from '../models/segment_model';
 import * as AnalyticUnit from '../models/analytic_unit_model';
 import { AnalyticsService, AnalyticsMessage } from '../services/analytics_service';
 
@@ -66,26 +66,26 @@ async function runTask(task: Task): Promise<any> {
 }
 
 export async function runLearning(id: AnalyticUnit.AnalyticUnitId) {
-  // let segments = getLabeledSegments(id);
-  // AnalyticUnit.setStatus(id, 'LEARNING');
-  // let unit = await AnalyticUnit.findById(id);
-  // let pattern = unit.type;
-  // let task = {
-  //   analyticUnitId: id,
-  //   type: 'LEARN',
-  //   pattern,
-  //   segments: segments
-  // };
-
-  // let result = await runTask(task);
-
-  // if (result.status === 'SUCCESS') {
-  //   AnalyticUnit.setStatus(id, 'READY');
-  //   insertSegments(id, result.segments, false);
-  //   AnalyticUnit.setPredictionTime(id, result.lastPredictionTime);
-  // } else {
-  //   AnalyticUnit.setStatus(id, 'FAILED', result.error);
-  // }
+  let segments = Segments.findMany(id, { labeled: true });
+  AnalyticUnit.setStatus(id, AnalyticUnit.AnalyticUnitStatus.LEARNING);
+  let unit = await AnalyticUnit.findById(id);
+  let pattern = unit.type;
+  let task = {
+    analyticUnitId: id,
+    type: 'LEARN',
+    pattern,
+    segments: segments
+  };
+
+  let result = await runTask(task);
+
+  if (result.status === 'SUCCESS') {
+    AnalyticUnit.setStatus(id, AnalyticUnit.AnalyticUnitStatus.READY);
+    insertSegments(id, result.segments, false);
+    AnalyticUnit.setPredictionTime(id, result.lastPredictionTime);
+  } else {
+    AnalyticUnit.setStatus(id, AnalyticUnit.AnalyticUnitStatus.FAILED, result.error);
+  }
 }
 
 export async function runPredict(id: AnalyticUnit.AnalyticUnitId) {

server/src/models/analytic_unit_model.ts

@@ -5,7 +5,14 @@ import { Collection, makeDBQ } from '../services/data_service';
 let db = makeDBQ(Collection.ANALYTIC_UNITS);
 
 
+
 export type AnalyticUnitId = string;
+export enum AnalyticUnitStatus { 
+  LEARNING = 'LEARNING',
+  SUCCESS = 'SUCCESS',
+  READY = 'READY',
+  FAILED = 'FAILED'
+}
 
 export class AnalyticUnit {
   constructor(
@@ -15,7 +22,7 @@ export class AnalyticUnit {
     public metric: Metric,
     public id?: AnalyticUnitId,
     public lastPredictionTime?: number,
-    public status?: string,
+    public status?: AnalyticUnitStatus,
     public error?: string,
   ) {
     if(name === undefined) {
@@ -54,7 +61,7 @@ export class AnalyticUnit {
       obj.panelUrl,
       obj.type,
       Metric.fromObject(obj.metric),
-      obj.status,
+      obj.status as AnalyticUnitStatus,
       obj.lastPredictionTime,
       obj._id,
       obj.error,

server/src/models/segment_model.ts

@@ -60,7 +60,8 @@ export class Segment {
 export type FindManyQuery = {
   timeFromGTE?: number,
   timeToLTE?: number,
-  intexGT?: number
+  intexGT?: number,
+  labeled?: boolean
 }
 
 export async function findMany(id: AnalyticUnitId, query: FindManyQuery): Promise<Segment[]> {
@@ -71,6 +72,9 @@ export async function findMany(id: AnalyticUnitId, query: FindManyQuery): Promis
   if(query.timeToLTE !== undefined) {
     dbQuery.to = { $lte: query.timeToLTE };
   }
+  if(query.labeled !== undefined) {
+    dbQuery.labeled = query.labeled;
+  }
   let segs = await db.findMany(dbQuery);
   if(segs === null) {
     return [];

server/src/models/task_model.ts

@@ -2,15 +2,20 @@ import { AnalyticUnitId } from "./analytic_unit_model";
 
 
 export type TaskId = string;
+export enum TaskType { LEARN = 'LEARN' };
 
 export class Task {
   constructor(
     public analyticUnitId: AnalyticUnitId,
+    public type: TaskType,
     public id?: TaskId
   ) {
     if(analyticUnitId === undefined) {
       throw new Error('analyticUnitId is undefined');
     }
+    if(type === undefined || type === null) {
+      throw new Error('type is undefined or null');
+    }
   }
 
   public toObject() {
@@ -26,6 +31,7 @@ export class Task {
     }
     return new Task(
       obj.analyticUnitId,
+      obj.type as TaskType,
       obj._id,
     );
   }

server/src/services/analytics_service.ts

@@ -20,9 +20,6 @@ export class AnalyticsMessage {
   }
 }
 
-function analyticsMessageFromJson(obj: any): AnalyticsMessage {
-  return new AnalyticsMessage(obj);
-}
 
 export class AnalyticsService {
 
@@ -194,7 +191,6 @@ export class AnalyticsService {
       return;
     }
 
-    
     let text = data.toString();
     let response;
     try {