add statistic service

build.gradle

@@ -17,8 +17,8 @@ repositories {
     }
 }
 
-sourceCompatibility = '11'
+sourceCompatibility = '17'
-targetCompatibility = '11'
+targetCompatibility = '17'
 
 dependencies {
     ext {

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

@@ -11,7 +11,7 @@ import static java.lang.Math.abs;
 
 public class Smape extends ScoreMethod {
     public Smape() {
-        super("Smape");
+        super("Smape, %");
     }
 
     @Override

src/main/java/ru/ulstu/statistic/StatisticService.java

@@ -0,0 +1,43 @@
+package ru.ulstu.statistic;
+
+import org.springframework.stereotype.Service;
+import ru.ulstu.datamodel.ts.TimeSeries;
+import ru.ulstu.datamodel.ts.TimeSeriesValue;
+
+import java.util.Optional;
+import java.util.OptionalDouble;
+import java.util.stream.DoubleStream;
+
+@Service
+public class StatisticService {
+    public Optional<Double> getAverage(TimeSeries timeSeries) {
+        return getOptionalValue(getDoubleStream(timeSeries).average());
+    }
+
+    public Optional<Double> getMin(TimeSeries timeSeries) {
+        return getOptionalValue(getDoubleStream(timeSeries).min());
+    }
+
+    public Optional<Double> getMax(TimeSeries timeSeries) {
+        return getOptionalValue(getDoubleStream(timeSeries).max());
+    }
+
+    public Optional<Double> getLength(TimeSeries timeSeries) {
+        return getOptionalValue(Double.valueOf(timeSeries.getLength()));
+    }
+
+
+    private DoubleStream getDoubleStream(TimeSeries timeSeries) {
+        return timeSeries.getValues().stream().mapToDouble(TimeSeriesValue::getValue);
+    }
+
+    private Optional<Double> getOptionalValue(OptionalDouble optionalDouble) {
+        return Optional.ofNullable(optionalDouble.isPresent()
+                ? optionalDouble.getAsDouble()
+                : null);
+    }
+
+    private Optional<Double> getOptionalValue(Double value) {
+        return Optional.ofNullable(value);
+    }
+}

src/main/resources/templates/index.html

@@ -91,10 +91,8 @@
             json.plotOptions = plotOptions;
             $('#chart').highcharts(json);
         });
-
-
-
     </script>
+
     <form action="#" th:action="chart" th:object="${chartForm}">
         <div class="row">
             <div class="col-md-12 col-sm-12 col-lg-6">
@@ -109,7 +107,6 @@
                 <script th:inline="javascript" th:if="*{set != null}">
                     $('#select-set').val([[*{set.key}]]);
                     $('#select-set').selectpicker('refresh');
-
                 </script>
 
                 <select id="select-ts" class="selectpicker form-group" data-live-search="true"
@@ -121,15 +118,42 @@
                             th:utext="${ts.key}">
                     </option>
                 </select>
-                <script th:inline="javascript" th:if="*{timeSeriesMeta != null}">
-                    $('#select-ts').val([[*{timeSeriesMeta.key}]]);
-                    $('#select-ts').selectpicker('refresh');
 
+                <script th:inline="javascript" th:if="*{timeSeriesMeta != null}">
+                    $('#select-ts').val([[ * {timeSeriesMeta.key}]
+                    ])
+                    ;
+                    $('#select-ts').selectpicker('refresh');
                 </script>
 
+                <h5 th:if="${forecastDescription != null && forecastDescription.timeSeriesMethod != null}">
+                    Результаты моделирования:
+                </h5>
                 <div th:if="${forecastDescription != null && forecastDescription.timeSeriesMethod != null}">
-                    <p> Метод прогнозирования: <span th:text="${forecastDescription.timeSeriesMethod}"> </span>
+                    <p> Метод прогнозирования:
-                    <p> Оценка: <span th:text="${forecastDescription.score.value}"> </span>
+                        <span th:text="${forecastDescription.timeSeriesMethod}"/>
+                    </p>
+                    <hr/>
+                    <p> Оценка прогноза по
+                        <span th:text="${forecastDescription.score.scoreMethod.name}"/>:
+                        <span th:text="${forecastDescription.score.value}"/>
+                    </p>
+                    <hr/>
+                </div>
+
+                <h5 th:if="${forecastDescription != null && forecastDescription.timeSeriesMethod != null}">
+                    Статистические характеристики временного ряда:
+                </h5>
+                <div th:if="${forecastDescription != null && forecastDescription.timeSeriesMethod != null}">
+                    <p> Метод прогнозирования:
+                        <span th:text="${forecastDescription.timeSeriesMethod}"/>
+                    </p>
+                    <hr/>
+                    <p> Оценка прогноза по
+                        <span th:text="${forecastDescription.score.scoreMethod.name}"/>:
+                        <span th:text="${forecastDescription.score.value}"/>
+                    </p>
+                    <hr/>
                 </div>
             </div>
             <div class="col-md-12 col-sm-12 col-lg-6">

src/test/java/StatisticServiceTest.java

@@ -0,0 +1,42 @@
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import ru.ulstu.TimeSeriesUtils;
+import ru.ulstu.datamodel.ts.TimeSeries;
+import ru.ulstu.datamodel.ts.TimeSeriesValue;
+import ru.ulstu.statistic.StatisticService;
+
+import java.time.LocalDateTime;
+
+public class StatisticServiceTest {
+    private TimeSeries getTimeSeries() {
+        TimeSeries ts = new TimeSeries();
+        for (int i = 0; i < 11; i++) {
+            ts.addValue(new TimeSeriesValue(LocalDateTime.now(), (double) i));
+        }
+        return TimeSeriesUtils.fillDates(ts);
+    }
+
+    @Test
+    public void testAverage() {
+        Assertions.assertEquals(new StatisticService().getAverage(getTimeSeries())
+                .orElseThrow(() -> new RuntimeException("Average test failed")), 5.0);
+    }
+
+    @Test
+    public void testMin() {
+        Assertions.assertEquals(new StatisticService().getMin(getTimeSeries())
+                .orElseThrow(() -> new RuntimeException("Min test failed")), 0.0);
+    }
+
+    @Test
+    public void testMax() {
+        Assertions.assertEquals(new StatisticService().getMax(getTimeSeries())
+                .orElseThrow(() -> new RuntimeException("Max test failed")), 10.0);
+    }
+
+    @Test
+    public void testLength() {
+        Assertions.assertEquals(new StatisticService().getLength(getTimeSeries())
+                .orElseThrow(() -> new RuntimeException("Length test failed")), 11.0);
+    }
+}