2021-08-20 11:44:30 +04:00

102 lines
4.8 KiB
Java

/*
* Copyright (C) 2021 Anton Romanov - All Rights Reserved
* You may use, distribute and modify this code, please write to: romanov73@gmail.com.
*
*/
package ru.ulstu.controller;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
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;
import ru.ulstu.service.TimeSeriesService;
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.concurrent.ExecutionException;
import java.util.stream.Collectors;
@Controller
@ApiIgnore
public class IndexController {
private final UtilService utilService;
private final TimeSeriesService timeSeriesService;
private final DbService dbService;
private final static Logger LOG = LoggerFactory.getLogger(IndexController.class);
public IndexController(UtilService utilService,
TimeSeriesService timeSeriesService,
DbService dbService) {
this.utilService = utilService;
this.timeSeriesService = timeSeriesService;
this.dbService = dbService;
}
@GetMapping("/")
public String index(Model model) throws IOException {
model.addAttribute("sets", dbService.getSets());
model.addAttribute("chartForm", new ChartForm());
return "index.html";
}
@GetMapping("chart")
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()));
}
if (chartForm.getTimeSeriesMeta() != null
&& chartForm.getTimeSeriesMeta().getKey() != null
&& !chartForm.getTimeSeriesMeta().getKey().isEmpty()) {
addChartToModel(dbService.getTimeSeries(chartForm.getSet(), chartForm.getTimeSeriesMeta().getKey()), model);
}
return "index.html";
}
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();
List<String> dates = timeSeries.getValues().stream()
.map(v -> v.getDate().format(DateTimeFormatter.ISO_DATE))
.distinct()
.collect(Collectors.toList());
dates.addAll(forecast.getValues().stream()
.map(v -> v.getDate().format(DateTimeFormatter.ISO_DATE))
.collect(Collectors.toSet()));
model.addAttribute("dates", dates);
model.addAttribute("timeSeries", timeSeries.getValues().stream().map(TimeSeriesValue::getValue).toArray());
model.addAttribute("model", timeSeriesModel.getValues().stream().map(TimeSeriesValue::getValue).toArray());
timeSeries.getValues().remove(timeSeries.getValues().size() - 1);
List<Double> forecastValues = timeSeries.getValues().stream().map(v -> (Double) null).collect(Collectors.toList());
forecastValues.addAll(forecast.getValues().stream().map(TimeSeriesValue::getValue).collect(Collectors.toList()));
model.addAttribute("forecast", forecastValues.toArray());
List<Double> testForecastValues = timeSeries.getValues()
.stream()
.skip(countForecastPoints)
.map(v -> (Double) null)
.collect(Collectors.toList());
testForecastValues.addAll(testForecast.getValues().stream().map(TimeSeriesValue::getValue).collect(Collectors.toList()));
model.addAttribute("testForecast", testForecastValues.toArray());
model.addAttribute("forecastDescription", modelingResult);
}
}