NCBACK-34 add logic for clear does not exist files,add dto for similar file search controller

src/main/java/ru/soune/nocopy/service/file/NotExistFilesCleanupService.java

@@ -0,0 +1,35 @@
+package ru.soune.nocopy.service.file;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import ru.soune.nocopy.entity.file.FileEntity;
+import ru.soune.nocopy.entity.file.FileStatus;
+import ru.soune.nocopy.repository.FileEntityRepository;
+
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.List;
+
+@Service
+@RequiredArgsConstructor
+public class NotExistFilesCleanupService {
+
+    @Autowired
+    private FileEntityRepository fileEntityRepository;
+
+    @Transactional
+    @Scheduled(fixedDelay = 30000)
+    public void cleanUpNotExistFiles() {
+        List<FileEntity> fileEntities = fileEntityRepository.searchFileEntityByStatus(FileStatus.DELETED);
+
+        for (FileEntity fileEntity : fileEntities) {
+            boolean exists = Files.exists(Paths.get(fileEntity.getFilePath()));
+            if (!exists) {
+                fileEntityRepository.delete(fileEntity);
+            }
+        }
+    }
+}