Cleanup workers handling classes.

[e-mobility-charging-stations-simulator.git] / src / start.ts

diff --git a/src/start.ts b/src/start.ts
index 1c91dea361f5e5b9224ce6f8d6529e5758d524b4..947a1abfd15011ae208529f92f7edd1ed41cb98e 100644 (file)
--- a/src/start.ts
+++ b/src/start.ts
@@ -1,36 +1,71 @@
 import Configuration from './utils/Configuration';
-import { StationTemplateURL } from './types/ConfigurationData';
-import Wrk from './charging-station/Worker';
+import Constants from './utils/Constants';
+import Utils from './utils/Utils';
+import WorkerData from './types/WorkerData';
+import WorkerGroup from './charging-station/WorkerGroup';
+import WorkerPool from './charging-station/WorkerPool';
 
 class Bootstrap {
-  static start() {
+  static async start() {
     try {
       let numStationsTotal = 0;
+      let numConcurrentWorkers = 0;
+      const chargingStationsPerWorker = Configuration.getChargingStationsPerWorker();
+      let chargingStationsPerWorkerCounter = 0;
+      let workerImplementation: WorkerGroup | WorkerPool;
+      if (Configuration.useWorkerPool()) {
+        workerImplementation = new WorkerPool('./dist/charging-station/StationWorker.js');
+        void workerImplementation.start();
+      }
       // Start each ChargingStation object in a worker thread
       if (Configuration.getStationTemplateURLs()) {
-        Configuration.getStationTemplateURLs().forEach((stationURL: StationTemplateURL) => {
+        for (const stationURL of Configuration.getStationTemplateURLs()) {
           try {
             const nbStations = stationURL.numberOfStations ? stationURL.numberOfStations : 0;
-            numStationsTotal += nbStations;
             for (let index = 1; index <= nbStations; index++) {
-              const worker = new Wrk('./dist/charging-station/StationWorker.js', {
+              const workerData: WorkerData = {
                 index,
-                templateFile: stationURL.file,
-              }, numStationsTotal);
-              worker.start().catch(() => {});
+                templateFile: stationURL.file
+              };
+              if (Configuration.useWorkerPool()) {
+                void workerImplementation.addElement(workerData);
+                numConcurrentWorkers = workerImplementation.size;
+                numStationsTotal = workerImplementation.size;
+                // Start worker sequentially to optimize memory at start time
+                await Utils.sleep(Constants.START_WORKER_DELAY);
+              } else {
+                // eslint-disable-next-line no-lonely-if
+                if (chargingStationsPerWorkerCounter === 0 || chargingStationsPerWorkerCounter >= chargingStationsPerWorker) {
+                  // Start new WorkerGroup with one charging station
+                  workerImplementation = new WorkerGroup('./dist/charging-station/StationWorker.js', workerData, chargingStationsPerWorker);
+                  void workerImplementation.start();
+                  numConcurrentWorkers++;
+                  chargingStationsPerWorkerCounter = 1;
+                  numStationsTotal++;
+                  // Start worker sequentially to optimize memory at start time
+                  await Utils.sleep(Constants.START_WORKER_DELAY);
+                } else {
+                  // Add charging station to existing WorkerGroup
+                  void workerImplementation.addElement(workerData);
+                  chargingStationsPerWorkerCounter++;
+                  numStationsTotal++;
+                }
+              }
             }
           } catch (error) {
             // eslint-disable-next-line no-console
             console.log('Charging station start with template file ' + stationURL.file + ' error ' + JSON.stringify(error, null, ' '));
           }
-        });
+        }
       } else {
         console.log('No stationTemplateURLs defined in configuration, exiting');
       }
       if (numStationsTotal === 0) {
         console.log('No charging station template enabled in configuration, exiting');
+      } else if (Configuration.useWorkerPool()) {
+        console.log('Charging station simulator started with ' + numStationsTotal.toString() + ' charging station(s) and ' + numConcurrentWorkers.toString() + '/' + Configuration.getWorkerPoolMaxSize().toString() + ' worker(s) concurrently running');
       } else {
-        console.log('Charging station simulator started with ' + numStationsTotal.toString() + ' charging station(s)');
+        console.log('Charging station simulator started with ' + numStationsTotal.toString() + ' charging station(s) and ' + numConcurrentWorkers.toString() + ' worker(s) concurrently running');
       }
     } catch (error) {
       // eslint-disable-next-line no-console
@@ -39,4 +74,8 @@ class Bootstrap {
   }
 }
 
-Bootstrap.start();
+Bootstrap.start().catch(
+  (error) => {
+    console.error(error);
+  }
+);