| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| package com.epam.dlab.backendapi.service.impl.azure; |
| |
| import com.azure.identity.ClientSecretCredentialBuilder; |
| import com.azure.storage.blob.BlobClient; |
| import com.azure.storage.blob.BlobContainerClient; |
| import com.azure.storage.blob.BlobServiceClient; |
| import com.azure.storage.blob.BlobServiceClientBuilder; |
| import com.azure.storage.blob.models.BlobItem; |
| import com.epam.dlab.auth.UserInfo; |
| import com.epam.dlab.backendapi.ProvisioningServiceApplicationConfiguration; |
| import com.epam.dlab.backendapi.service.BucketService; |
| import com.epam.dlab.dto.bucket.BucketDTO; |
| import com.epam.dlab.exceptions.DlabException; |
| import com.epam.dlab.model.azure.AzureAuthFile; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.google.inject.Inject; |
| import lombok.AllArgsConstructor; |
| import lombok.Getter; |
| import lombok.extern.slf4j.Slf4j; |
| |
| import javax.servlet.ServletOutputStream; |
| import javax.servlet.http.HttpServletResponse; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| @Slf4j |
| public class BucketServiceAzureImpl implements BucketService { |
| |
| private final AzureAuthFile azureAuthFile; |
| |
| @Inject |
| public BucketServiceAzureImpl(ProvisioningServiceApplicationConfiguration configuration) throws Exception { |
| azureAuthFile = getAzureAuthFile(configuration); |
| } |
| |
| @Override |
| public List<BucketDTO> getObjects(String bucket) { |
| try { |
| AzureStorageAccount account = getAzureStorageAccount(bucket); |
| BlobServiceClient blobServiceClient = getBlobServiceClient(account.getStorageAccount()); |
| BlobContainerClient blobContainerClient = blobServiceClient.getBlobContainerClient(account.getContainer()); |
| return blobContainerClient.listBlobs() |
| .stream() |
| .map(blob -> toBucketDTO(account.getContainer(), blob)) |
| .collect(Collectors.toList()); |
| } catch (Exception e) { |
| log.error("Cannot retrieve objects from bucket {}. Reason: {}", bucket, e.getMessage(), e); |
| throw new DlabException(String.format("Cannot retrieve objects from bucket %s. Reason: %s", bucket, e.getMessage())); |
| } |
| } |
| |
| @Override |
| public void uploadObject(String bucket, String object, InputStream stream, String contentType, long fileSize) { |
| log.info("Uploading file {} to bucket {}", object, bucket); |
| try { |
| AzureStorageAccount account = getAzureStorageAccount(bucket); |
| BlobServiceClient blobServiceClient = getBlobServiceClient(account.getStorageAccount()); |
| BlobContainerClient blobContainerClient = blobServiceClient.getBlobContainerClient(account.getContainer()); |
| BlobClient blobClient = blobContainerClient.getBlobClient(object); |
| blobClient.upload(stream, fileSize); |
| } catch (Exception e) { |
| log.error("Cannot upload object {} to bucket {}. Reason: {}", object, bucket, e.getMessage(), e); |
| throw new DlabException(String.format("Cannot upload object %s to bucket %s. Reason: %s", object, bucket, e.getMessage())); |
| } |
| log.info("Finished uploading file {} to bucket {}", object, bucket); |
| } |
| |
| @Override |
| public void uploadFolder(UserInfo userInfo, String bucket, String folder) { |
| // Azure doesn't support this feature |
| } |
| |
| @Override |
| public void downloadObject(String bucket, String object, HttpServletResponse resp) { |
| log.info("Downloading file {} from bucket {}", object, bucket); |
| try (ServletOutputStream outputStream = resp.getOutputStream()) { |
| AzureStorageAccount account = getAzureStorageAccount(bucket); |
| BlobServiceClient blobServiceClient = getBlobServiceClient(account.getStorageAccount()); |
| BlobContainerClient blobContainerClient = blobServiceClient.getBlobContainerClient(account.getContainer()); |
| BlobClient blobClient = blobContainerClient.getBlobClient(object); |
| blobClient.download(outputStream); |
| } catch (Exception e) { |
| log.error("Cannot download object {} from bucket {}. Reason: {}", object, bucket, e.getMessage(), e); |
| throw new DlabException(String.format("Cannot download object %s from bucket %s. Reason: %s", object, bucket, e.getMessage())); |
| } |
| log.info("Finished downloading file {} from bucket {}", object, bucket); |
| } |
| |
| @Override |
| public void deleteObjects(String bucket, List<String> objects) { |
| try { |
| AzureStorageAccount account = getAzureStorageAccount(bucket); |
| BlobServiceClient blobServiceClient = getBlobServiceClient(account.getStorageAccount()); |
| BlobContainerClient blobContainerClient = blobServiceClient.getBlobContainerClient(account.getContainer()); |
| objects.forEach(object -> blobContainerClient.getBlobClient(object).delete()); |
| } catch (Exception e) { |
| log.error("Cannot delete objects {} from bucket {}. Reason: {}", objects, bucket, e.getMessage(), e); |
| throw new DlabException(String.format("Cannot delete objects %s from bucket %s. Reason: %s", objects, bucket, e.getMessage())); |
| } |
| } |
| |
| private BucketDTO toBucketDTO(String bucket, BlobItem blob) { |
| return BucketDTO.builder() |
| .bucket(bucket) |
| .object(blob.getName()) |
| .size(String.valueOf(blob.getProperties().getContentLength())) |
| .lastModifiedDate(blob.getProperties().getLastModified().toEpochSecond()) |
| .build(); |
| } |
| |
| private AzureAuthFile getAzureAuthFile(ProvisioningServiceApplicationConfiguration configuration) throws Exception { |
| final String authFile = configuration.getCloudConfiguration().getAzureAuthFile(); |
| Path path = Paths.get(authFile); |
| if (path.toFile().exists()) { |
| try { |
| return new ObjectMapper().readValue(path.toFile(), AzureAuthFile.class); |
| } catch (IOException e) { |
| log.error("Cannot parse azure auth file {}", authFile, e); |
| throw new IOException("Cannot parse azure auth file " + authFile); |
| } catch (Exception e) { |
| log.error("Something went wrong while parsing azure auth file {}", authFile, e); |
| throw new Exception("Something went wrong while parsing azure auth file " + authFile); |
| } |
| } else { |
| throw new FileNotFoundException("Cannot find azure auth file for path" + authFile); |
| } |
| } |
| |
| private BlobServiceClient getBlobServiceClient(String storageAccount) { |
| final String endpoint = String.format("https://%s.blob.core.windows.net", storageAccount); |
| return new BlobServiceClientBuilder() |
| .endpoint(endpoint) |
| .credential(new ClientSecretCredentialBuilder() |
| .clientId(azureAuthFile.getClientId()) |
| .clientSecret(azureAuthFile.getClientSecret()) |
| .tenantId(azureAuthFile.getTenantId()) |
| .build()) |
| .buildClient(); |
| } |
| |
| private AzureStorageAccount getAzureStorageAccount(String bucket) { |
| String[] a = bucket.split("\\."); |
| return new AzureStorageAccount(a[0], a[1]); |
| } |
| |
| @Getter |
| @AllArgsConstructor |
| private static class AzureStorageAccount { |
| private final String storageAccount; |
| private final String container; |
| } |
| } |