dev delete check file on disk

src/main/java/ru/soune/nocopy/service/file/cloud/CloudStorageService.java

@@ -10,6 +10,7 @@ import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
 import software.amazon.awssdk.auth.credentials.AwsCredentials;
 import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
 import software.amazon.awssdk.core.sync.RequestBody;
+import software.amazon.awssdk.core.sync.ResponseTransformer;
 import software.amazon.awssdk.http.apache.ApacheHttpClient;
 import software.amazon.awssdk.regions.Region;
 import software.amazon.awssdk.services.s3.S3Client;
@@ -18,6 +19,7 @@ import software.amazon.awssdk.services.s3.model.PutObjectRequest;
 
 import java.io.File;
 import java.io.IOException;
+import java.io.InputStream;
 import java.net.URI;
 import java.nio.file.Files;
 import java.nio.file.Paths;
@@ -96,6 +98,24 @@ public class CloudStorageService {
         return tempFile;
     }
 
+    public InputStream readFileFromStorage(String filePath) {
+        GetObjectRequest objectRequest = GetObjectRequest.builder()
+                .bucket(bucket)
+                .key("files" + filePath)
+                .build();
+
+        AwsCredentials credentials = AwsBasicCredentials.create(key, secretKey);
+
+        S3Client s3Client = S3Client.builder()
+                .httpClient(ApacheHttpClient.create())
+                .region(Region.of(region))
+                .endpointOverride(URI.create(s3endpoint))
+                .credentialsProvider(StaticCredentialsProvider.create(credentials))
+                .build();
+
+        return s3Client.getObject(objectRequest, ResponseTransformer.toInputStream());
+    }
+
     public void deleteFileFromStorage(String filePath) {
         if (filePath == null || filePath.isEmpty()) {
             log.warn("Attempted to delete file with empty path");