src/main/java/ru/ulstu/extractor/model/TimeSeriesValue.java

@@ -12,7 +12,8 @@ public class TimeSeriesValue extends BaseEntity {
     @ManyToOne(fetch = FetchType.LAZY)
     private TimeSeries timeSeries;
 
-    public TimeSeriesValue(Date date, Integer value) {
+    public TimeSeriesValue(TimeSeries timeSeries, Date date, Integer value) {
+        this.timeSeries = timeSeries;
         this.date = date;
         this.value = value;
     }

src/main/java/ru/ulstu/extractor/repository/TimeSeriesRepository.java

@@ -0,0 +1,10 @@
+package ru.ulstu.extractor.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import ru.ulstu.extractor.model.TimeSeries;
+
+import java.util.Optional;
+
+public interface TimeSeriesRepository extends JpaRepository<TimeSeries, Integer> {
+    Optional<TimeSeries> findByName(String name);
+}

src/main/java/ru/ulstu/extractor/repository/TimeSeriesValueRepository.java

@@ -0,0 +1,13 @@
+package ru.ulstu.extractor.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import ru.ulstu.extractor.model.TimeSeries;
+import ru.ulstu.extractor.model.TimeSeriesValue;
+
+import java.util.List;
+
+public interface TimeSeriesValueRepository extends JpaRepository<TimeSeriesValue, Integer> {
+    TimeSeriesValue findByTimeSeriesAndName(TimeSeries timeSeries, String name);
+
+    List<TimeSeriesValue> findTimeSeriesValueById(Integer repositoryId);
+}

src/main/java/ru/ulstu/extractor/service/TimeSeriesService.java

@@ -0,0 +1,75 @@
+/*
+ * 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.extractor.service;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+import ru.ulstu.extractor.model.BaseEntity;
+import ru.ulstu.extractor.model.TimeSeries;
+import ru.ulstu.extractor.model.TimeSeriesValue;
+import ru.ulstu.extractor.repository.TimeSeriesRepository;
+import ru.ulstu.extractor.repository.TimeSeriesValueRepository;
+
+import java.util.Date;
+import java.util.List;
+import java.util.Optional;
+import java.util.stream.Collectors;
+
+@Service
+public class TimeSeriesService {
+    private final static Logger LOG = LoggerFactory.getLogger(TimeSeriesService.class);
+    private final TimeSeriesRepository timeSeriesRepository;
+    private final TimeSeriesValueRepository timeSeriesValueRepository;
+
+
+    public TimeSeriesService(TimeSeriesRepository timeSeriesRepository, TimeSeriesValueRepository timeSeriesValueRepository) {
+        this.timeSeriesRepository = timeSeriesRepository;
+        this.timeSeriesValueRepository = timeSeriesValueRepository;
+    }
+
+    public TimeSeries save(TimeSeries timeSeries, List<TimeSeriesValue> timeSeriesValues) {
+        LOG.debug("Start save {} time series with {} time series values ", timeSeries.getName(), timeSeriesValues.size());
+        List<Integer> timeSeriesValuesToRemoveIds = timeSeries.getValues().stream().map(BaseEntity::getId).collect(Collectors.toList());
+        timeSeries.setValues(timeSeriesValues);
+        LOG.debug("Save time series {} ", timeSeries.getName());
+        timeSeries = timeSeriesRepository.save(timeSeries);
+        LOG.debug("Clear {} ime series values ", timeSeriesValuesToRemoveIds.size());
+        return timeSeries;
+    }
+
+    public TimeSeries findOrCreate(String timeSeriesName) {
+        Optional<TimeSeries> maybeTimeSeries = timeSeriesRepository.findByName(timeSeriesName);
+        if (maybeTimeSeries.isPresent()) {
+            LOG.debug("TimeSeries {} exists.", maybeTimeSeries.get().getName());
+            return maybeTimeSeries.get();
+        }
+        return timeSeriesRepository.save(new TimeSeries(timeSeriesName));
+    }
+
+    public List<TimeSeriesValue> save(List<TimeSeriesValue> timeSeriesValues) {
+        return timeSeriesValues.stream()
+                .map(timeSeriesValue -> {
+                    timeSeriesValue.setValue((timeSeriesValue.getValue()));
+                    timeSeriesValue.setDate((timeSeriesValue.getDate()));
+                    return timeSeriesValueRepository.save(timeSeriesValue);
+                }).collect(Collectors.toList());
+    }
+
+    public void addTimeSeriesValue(String timeSeriesName, Date date, Integer value) {
+        LOG.debug("Start add time series values to {} time series values ", timeSeriesName);
+        TimeSeries timeSeries = findOrCreate(timeSeriesName);
+        timeSeriesValueRepository.save(new TimeSeriesValue(timeSeries, date, value));
+    }
+
+    public TimeSeriesValue findByTimeSeriesAndName(TimeSeries timeSeries, String name) {
+        return timeSeriesValueRepository.findByTimeSeriesAndName(timeSeries, name);
+    }
+
+    public List<TimeSeriesValue> findAll() {
+        return timeSeriesValueRepository.findAll();
+    }
+}

src/main/java/ru/ulstu/extractor/ts/AbstractTSExtractor.java

@@ -0,0 +1,28 @@
+package ru.ulstu.extractor.ts;
+
+public abstract class AbstractTSExtractor {
+    private String name;
+    private int value;
+
+    public abstract void getAbstractTSName();
+
+    public abstract void addPoint(int value);
+
+    public abstract void addTS(String name, int value);
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public int getValue() {
+        return value;
+    }
+
+    public void setValue(int value) {
+        this.value = value;
+    }
+}

src/main/java/ru/ulstu/extractor/ts/AuthorTS.java

@@ -0,0 +1,34 @@
+package ru.ulstu.extractor.ts;
+
+import org.springframework.stereotype.Component;
+import ru.ulstu.extractor.service.TimeSeriesService;
+
+@Component
+public class AuthorTS extends AbstractTSExtractor {
+    private static String name = "AuthorTimeSeries";
+    private static TimeSeriesService timeSeriesService;
+
+    public static void setTimeSeriesService(TimeSeriesService timeSeriesService) {
+        AuthorTS.timeSeriesService = timeSeriesService;
+    }
+
+    @Override
+    public void getAbstractTSName() {
+        timeSeriesService.findOrCreate(name);
+    }
+
+    @Override
+    public void addPoint(int value) {
+
+    }
+
+    @Override
+    public void addTS(String name, int value) {
+
+    }
+
+    @Override
+    public String getName() {
+        return name;
+    }
+}