1 files changed, 72 insertions, 0 deletions
diff --git a/src/main/java/org/onap/sdc/helmvalidator/helm/validation/FileManager.java b/src/main/java/org/onap/sdc/helmvalidator/helm/validation/FileManager.java
new file mode 100644
index 0000000..3617df7
--- /dev/null
+++ b/src/main/java/org/onap/sdc/helmvalidator/helm/validation/FileManager.java
@@ -0,0 +1,72 @@
+/*
+ * ============LICENSE_START=======================================================
+ * SDC-HELM-VALIDATOR
+ * ================================================================================
+ * Copyright (C) 2021 Nokia. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.sdc.helmvalidator.helm.validation;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+import java.time.Instant;
+import org.onap.sdc.helmvalidator.helm.validation.exception.SaveFileException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import org.springframework.web.multipart.MultipartFile;
+
+@Service
+public class FileManager {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(FileManager.class);
+    private final String basePath;
+
+    @Autowired
+    FileManager(@Value("${app.config.charts-base-path}") String basePath) {
+        this.basePath = basePath;
+    }
+
+    String saveFile(MultipartFile file) {
+        LOGGER.debug("Base PATH: {}", basePath);
+        try {
+            String filePath = basePath + File.separator + generateFileName(file.getOriginalFilename());
+            LOGGER.info("Attempt to save file : {}", filePath);
+            Files.copy(file.getInputStream(), Paths.get(filePath), StandardCopyOption.REPLACE_EXISTING);
+            return filePath;
+        } catch (IOException e) {
+            throw new SaveFileException("Cannot save file: " + file.getOriginalFilename(), e);
+        }
+    }
+
+    void removeFile(String path) {
+        try {
+            LOGGER.debug("Attempt to delete file : {}", path);
+            Files.deleteIfExists(Paths.get(path));
+        } catch (IOException e) {
+            LOGGER.warn("Cannot delete file: {}, Exception: {}", path, e.getStackTrace());
+        }
+    }
+
+    private String generateFileName(String fileName) {
+        return Instant.now().toEpochMilli() + "_" + fileName;
+    }
+}