fixed minor issues

src/main/java/com/app/sellerretailreports/SellerRetailReportsApplication.java

@@ -2,12 +2,10 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.cache.annotation.EnableCaching;
 import org.springframework.scheduling.annotation.EnableScheduling;
 
 @SpringBootApplication
 @EnableScheduling
-@EnableCaching
 public class SellerRetailReportsApplication {
     public static void main(String[] args) {
         SpringApplication.run(SellerRetailReportsApplication.class, args);

src/main/java/com/app/sellerretailreports/cache/SpringCacheCustomizer.java

@@ -7,14 +7,25 @@
 
 @Component
 public class SpringCacheCustomizer implements CacheManagerCustomizer<ConcurrentMapCacheManager> {
+    private static final String SALES_AND_TRAFFIC_BY_DATES_BETWEEN =
+            "salesAndTrafficByDatesBetween";
+    private static final String SALES_AND_TRAFFIC_BY_SPECIFIED_DATE =
+            "salesAndTrafficBySpecifiedDate";
+    private static final String SALES_AND_TRAFFIC_BY_SPECIFIED_ASINS =
+            "salesAndTrafficBySpecifiedAsins";
+    private static final String SALES_AND_TRAFFIC_BY_ASINS =
+            "salesAndTrafficByAsins";
+    private static final String SALES_AND_TRAFFIC_BY_DATES =
+            "salesAndTrafficByDates";
+
     @Override
     public void customize(ConcurrentMapCacheManager cacheManager) {
         cacheManager.setCacheNames(List.of(
-                "salesAndTrafficByDatesBetween",
-                "salesAndTrafficBySpecifiedDate",
-                "salesAndTrafficBySpecifiedAsins",
-                "salesAndTrafficByAsins",
-                "salesAndTrafficByDates"
+                SALES_AND_TRAFFIC_BY_DATES_BETWEEN,
+                SALES_AND_TRAFFIC_BY_SPECIFIED_DATE,
+                SALES_AND_TRAFFIC_BY_SPECIFIED_ASINS,
+                SALES_AND_TRAFFIC_BY_ASINS,
+                SALES_AND_TRAFFIC_BY_DATES
             )
         );
     }

src/main/java/com/app/sellerretailreports/controller/ReportController.java

@@ -7,18 +7,16 @@
 import java.util.List;
 import lombok.RequiredArgsConstructor;
 import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
 @RequiredArgsConstructor
-@RequestMapping(value = "/report")
 @Tag(name = "Report management",
-        description = "Endpoints for managing reports.")
+        description = "Endpoints for getting reports.")
 public class ReportController {
     private final ReportService reportService;
 
-    @GetMapping(value = "/all")
+    @GetMapping(value = "/reports")
     @Operation(summary = "Get reports by all dates")
     public List<ReportResponseDto> getAll() {
         return reportService.findAll();

src/main/java/com/app/sellerretailreports/service/file/FileReaderService.java

@@ -8,26 +8,13 @@
 
 public class FileReaderService {
     public static String readFile(String fileName) {
-
-        try {
-            BufferedReader bufferedReader = Files.newBufferedReader(Paths.get(fileName));
-
-            try {
-                String str = bufferedReader.lines()
-                        .collect(Collectors.joining(System.lineSeparator()));
-                bufferedReader.close();
-                return str;
-            } catch (Throwable throwable) {
-                try {
-                    bufferedReader.close();
-                } catch (Throwable throwable1) {
-                    throwable.addSuppressed(throwable1);
-                }
-                throw throwable;
-            }
+        try (BufferedReader bufferedReader = Files.newBufferedReader(Paths.get(fileName))) {
+            String str = bufferedReader.lines()
+                    .collect(Collectors.joining(System.lineSeparator()));
+            bufferedReader.close();
+            return str;
         } catch (IOException e) {
             throw new RuntimeException("Cannot read data from the file " + fileName, e);
         }
-
     }
 }

src/main/java/com/app/sellerretailreports/service/initializer/ReportInitializerService.java

@@ -1,7 +1,62 @@
 package com.app.sellerretailreports.service.initializer;
 
-public interface ReportInitializerService {
-    void initialize();
+import com.app.sellerretailreports.entity.report.SalesAndTrafficReport;
+import com.app.sellerretailreports.repository.report.ReportRepository;
+import com.app.sellerretailreports.service.file.FileReaderService;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+import jakarta.annotation.PostConstruct;
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import lombok.RequiredArgsConstructor;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Service;
 
-    void update();
+@Service
+@RequiredArgsConstructor
+class ReportInitializerService {
+    private static final String INITIALIZE_JSON_PATH =
+            "src\\main\\resources\\db\\json\\test_report.json";
+    private static final String UPDATE_JSON_PATH =
+            "src\\main\\resources\\db\\json\\db_report.json";
+    private final ReportRepository repository;
+
+    @PostConstruct
+    public void initialize() {
+        Path path = Paths.get(UPDATE_JSON_PATH);
+        if (Files.exists(path)) {
+            update();
+            return;
+        }
+        SalesAndTrafficReport report = getReport(INITIALIZE_JSON_PATH);
+        SalesAndTrafficReport saved = repository.save(report);
+        ObjectMapper objectMapper = new ObjectMapper();
+        objectMapper.registerModule(new JavaTimeModule());
+        try {
+            objectMapper.writeValue(new File(UPDATE_JSON_PATH), saved);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Scheduled(fixedRate = 900_000) /* updates data in db every 15 minutes */
+    public void update() {
+        SalesAndTrafficReport report = getReport("src\\main\\resources\\db\\json\\db_report.json");
+        repository.save(report);
+    }
+
+    private SalesAndTrafficReport getReport(String fileName) {
+        String jsonString = FileReaderService.readFile(fileName);
+        ObjectMapper objectMapper = new ObjectMapper();
+        objectMapper.registerModule(new JavaTimeModule());
+        try {
+            return objectMapper.readValue(jsonString, SalesAndTrafficReport.class);
+        } catch (JsonProcessingException e) {
+            throw new RuntimeException(e);
+        }
+    }
 }

src/main/java/com/app/sellerretailreports/service/sales/SalesAndTrafficByDateServiceImpl.java

@@ -18,6 +18,16 @@
 @Service
 @RequiredArgsConstructor
 public class SalesAndTrafficByDateServiceImpl implements SalesAndTrafficByDateService {
+    private static final String SALES_AND_TRAFFIC_BY_DATES_BETWEEN =
+            "salesAndTrafficByDatesBetween";
+    private static final String SALES_AND_TRAFFIC_BY_SPECIFIED_DATE =
+            "salesAndTrafficBySpecifiedDate";
+    private static final String SALES_AND_TRAFFIC_BY_SPECIFIED_ASINS =
+            "salesAndTrafficBySpecifiedAsins";
+    private static final String SALES_AND_TRAFFIC_BY_ASINS =
+            "salesAndTrafficByAsins";
+    private static final String SALES_AND_TRAFFIC_BY_DATES =
+            "salesAndTrafficByDates";
     private static final int FIRST_ELEMENT_INDEX = 0;
     private final ReportRepository repository;
     private final SalesAndTrafficByDateMapper salesAndTrafficByDateMapper;
@@ -78,16 +88,16 @@ public List<SalesAndTrafficByDateDto> findAllByDates() {
 
     @CacheEvict(
             value = {
-                    "salesAndTrafficByDatesBetween",
-                    "salesAndTrafficBySpecifiedDate",
-                    "salesAndTrafficBySpecifiedAsins",
-                    "salesAndTrafficByAsins",
-                    "salesAndTrafficByDates"
+                    SALES_AND_TRAFFIC_BY_DATES_BETWEEN,
+                    SALES_AND_TRAFFIC_BY_SPECIFIED_DATE,
+                    SALES_AND_TRAFFIC_BY_SPECIFIED_ASINS,
+                    SALES_AND_TRAFFIC_BY_ASINS,
+                    SALES_AND_TRAFFIC_BY_DATES
             },
             allEntries = true
     )
     @Scheduled(fixedRateString = "${caching.spring.TTL}")
-    public void emptyHotelsCache() {
+    public void emptyCache() {
     }
 
     private SalesAndTrafficReport findReport() {

src/main/resources/application.properties

@@ -8,3 +8,5 @@ caching.spring.TTL=420000
 
 jwt.expiration=${JWT_EXPIRATION}
 jwt.secret=${JWT_SECRET}
+
+logging.level.org.springframework.data.mongodb.core.MongoTemplate=DEBUG