#5 -- fix NPE

src/main/java/ru/ulstu/controller/IndexController.java

@@ -14,6 +14,7 @@ import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import ru.ulstu.datamodel.ChartForm;
 import ru.ulstu.datamodel.ModelingResult;
+import ru.ulstu.datamodel.exception.ModelingException;
 import ru.ulstu.datamodel.ts.TimeSeries;
 import ru.ulstu.datamodel.ts.TimeSeriesValue;
 import ru.ulstu.db.DbService;
@@ -22,9 +23,11 @@ import ru.ulstu.service.UtilService;
 import springfox.documentation.annotations.ApiIgnore;
 
 import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
 import java.time.format.DateTimeFormatter;
 import java.util.List;
 import java.util.Set;
+import java.util.concurrent.ExecutionException;
 import java.util.stream.Collectors;
 
 @Controller
@@ -52,7 +55,7 @@ public class IndexController {
     }
 
     @GetMapping("chart")
-    public String chart(@ModelAttribute ChartForm chartForm, Model model) throws IOException {
+    public String chart(@ModelAttribute ChartForm chartForm, Model model) throws IOException, ModelingException, ExecutionException, InterruptedException, InvocationTargetException, NoSuchMethodException, InstantiationException, IllegalAccessException {
         model.addAttribute("sets", dbService.getSets());
         if (chartForm.getSet() != null) {
             model.addAttribute("listTimeSeries", dbService.getTimeSeriesMeta(chartForm.getSet()));
@@ -65,21 +68,12 @@ public class IndexController {
         return "index.html";
     }
 
-    private void addChartToModel(TimeSeries timeSeries, Model model) {
-        int countForecastPoints = 10;
-        TimeSeries timeSeriesModel = null;
-        ModelingResult modelingResult = null;
-        TimeSeries forecast = null;
-        TimeSeries testForecast = null;
-        try {
-            timeSeriesModel = timeSeriesService.smoothTimeSeries(timeSeries);
-            modelingResult = timeSeriesService.getForecast(timeSeries, countForecastPoints);
-            forecast = modelingResult.getTimeSeries();
-            testForecast = modelingResult.getTestForecast();
-        } catch (Exception e) {
-            LOG.warn(e.getMessage());
-        }
-
+    private void addChartToModel(TimeSeries timeSeries, Model model) throws ExecutionException, InterruptedException, InvocationTargetException, NoSuchMethodException, InstantiationException, IllegalAccessException, ModelingException {
+        int countForecastPoints = timeSeries.getLength() > 20 ? 10 : timeSeries.getLength() / 3;
+        TimeSeries timeSeriesModel = timeSeriesService.smoothTimeSeries(timeSeries);
+        ModelingResult modelingResult = timeSeriesService.getForecast(timeSeries, countForecastPoints);
+        TimeSeries forecast = modelingResult.getTimeSeries();
+        TimeSeries testForecast = modelingResult.getTestForecast();
         Set<String> dates = timeSeries.getValues().stream()
                 .map(v -> v.getDate().format(DateTimeFormatter.ISO_DATE))
                 .collect(Collectors.toSet());

src/main/java/ru/ulstu/score/Smape.java

@@ -28,7 +28,7 @@ public class Smape extends ScoreMethod {
             //double actualValue = getValueOnSameDate(modelValue, original).getValue();
             double actualValue = Optional.ofNullable(tsValues.get(modelValue.getDate()))
                     .orElseThrow(() -> new ModelingException("Значение модельного ряда не найдено в оригинальном ряде: "
-                            + modelValue.getDate()));
+                            + modelValue.getDate() + " " + tsValues + " " + model));
             sum += abs(modelValue.getValue() - actualValue)
                     / ((abs(actualValue) + abs(modelValue.getValue())) / 2);
         }

src/main/java/ru/ulstu/service/MethodParamBruteForce.java

@@ -60,6 +60,7 @@ public class MethodParamBruteForce {
                 if (methodInstance.canMakeForecast(reducedTimeSeries, parametersValues, countPoints)) {
                     results.add(executors.submit(() -> {
                         TimeSeries forecast = methodInstance.getForecast(reducedTimeSeries, parametersValues, countPoints);
+                        forecast = syncDates(forecast, timeSeries);
                         return new ModelingResult(forecast, null,
                                 parametersValues,
                                 scoreMethod.getScore(tsValues, forecast),
@@ -87,6 +88,15 @@ public class MethodParamBruteForce {
                 bestResult.getTimeSeriesMethod());
     }
 
+    private TimeSeries syncDates(TimeSeries forecast, TimeSeries timeSeries) {
+        List<TimeSeriesValue> forecastValues = forecast.getValues();
+        for (int i = 1; i <= forecastValues.size(); i++) {
+            forecastValues.get(forecastValues.size() - i)
+                    .setDate(timeSeries.getValues().get(timeSeries.getValues().size() - i).getDate());
+        }
+        return forecast;
+    }
+
     public TimeSeries getForecastWithOptimalLength(TimeSeries timeSeries) {
         throw new RuntimeException("Not implemented");
     }

time-series-db/aviastar/Mazak VCN 410A работа по программе.csv

@@ -0,0 +1,9 @@
+2021-04-30T09:32:57.120554;37.13
+2021-05-31T09:32:57.120554;39.89
+2021-06-30T09:32:57.120554;41.6
+2021-07-30T09:32:57.120554;35.39
+2021-08-31T09:32:57.120554;33.46
+2021-09-30T09:32:57.120554;45.42
+2021-10-30T09:32:57.120554;41.99
+2021-11-30T09:32:57.120554;40.93
+2021-12-30T09:32:57.120554;36.07

time-series-db/aviastar/Mazak VCN 410A работа по программе.csv.meta

@@ -0,0 +1 @@
+{"key":"Mazak VCN 410A работа по программе","size":9,"hasDateTime":true}