content: /*
   * 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 org.apache.camel.kafkaconnector.aws.v2.s3.common;
  
  import java.io.File;
  import java.io.IOException;
  import java.util.List;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import software.amazon.awssdk.services.s3.S3Client;
  import software.amazon.awssdk.services.s3.model.CreateBucketRequest;
  import software.amazon.awssdk.services.s3.model.DeleteBucketRequest;
  import software.amazon.awssdk.services.s3.model.DeleteObjectRequest;
  import software.amazon.awssdk.services.s3.model.ListObjectsV2Request;
  import software.amazon.awssdk.services.s3.model.ListObjectsV2Response;
  import software.amazon.awssdk.services.s3.model.PutObjectRequest;
  import software.amazon.awssdk.services.s3.model.S3Object;
  
  public final class S3Utils {
      private static final Logger LOG = LoggerFactory.getLogger(S3Utils.class);
  
      private S3Utils() {
  
      }
  
      public static List<S3Object> listObjects(S3Client s3Client, String bucketName) {
          try {
              ListObjectsV2Request listObjectsRequest = ListObjectsV2Request.builder()
                      .bucket(bucketName)
                      .build();
  
              ListObjectsV2Response objectListing = s3Client.listObjectsV2(listObjectsRequest);
  
              return objectListing.contents();
          } catch (Exception e) {
              LOG.debug("Error listing: {}", e.getMessage(), e);
              throw e;
          }
      }
  
      /**
       * Delete an S3 bucket using the provided client. Coming from AWS documentation:
       * https://docs.aws.amazon.com/AmazonS3/latest/dev/Versioning.html
       *
       * AWS SDK v1 doc for reference:
       * https://docs.aws.amazon.com/AmazonS3/latest/dev/delete-or-empty-bucket.html#delete-bucket-sdk-java
       * @param s3Client the AmazonS3 client instance used to delete the bucket
       * @param bucketName a String containing the bucket name
       */
      public static void deleteBucket(S3Client s3Client, String bucketName) {
          // Delete all objects from the bucket. This is sufficient
          // for non versioned buckets. For versioned buckets, when you attempt to delete objects, Amazon S3 inserts
          // delete markers for all objects, but doesn't delete the object versions.
          // To delete objects from versioned buckets, delete all of the object versions before deleting
          // the bucket (see below for an example).
          ListObjectsV2Request listObjectsRequest = ListObjectsV2Request.builder()
                  .bucket(bucketName)
                  .build();
  
          ListObjectsV2Response objectListing;
          do {
              objectListing = s3Client.listObjectsV2(listObjectsRequest);
  
              for (S3Object s3Object : objectListing.contents()) {
                  s3Client.deleteObject(DeleteObjectRequest.builder().bucket(bucketName).key(s3Object.key()).build());
              }
  
              listObjectsRequest = ListObjectsV2Request.builder().bucket(bucketName)
                      .continuationToken(objectListing.nextContinuationToken())
                      .build();
          } while (objectListing.isTruncated());
  
          s3Client.deleteBucket(DeleteBucketRequest.builder().bucket(bucketName).build());
      }
  
  
      public static void createBucket(S3Client s3Client, String bucketName) {
          CreateBucketRequest request = CreateBucketRequest.builder()
                  .bucket(bucketName)
                  .build();
  
          s3Client.createBucket(request);
      }
  
      public static File[] getFilesToSend(File dir) throws IOException {
          File[] files = dir.listFiles(f -> f.getName().endsWith(".test"));
          if (files == null) {
              throw new IOException("Either I/O error or the path used is not a directory");
          }
  
          if (files.length == 0) {
              throw new IOException("Not enough files to run the test");
          }
  
          return files;
      }
  
      public static void sendFilesFromPath(S3Client s3Client, String bucketName, File[] files) {
          LOG.debug("Putting S3 objects");
  
          for (File file : files) {
              LOG.debug("Trying to read file {}", file.getName());
  
  
              PutObjectRequest putObjectRequest = PutObjectRequest.builder()
                      .bucket(bucketName)
                      .key(file.getName())
                      .build();
  
              s3Client.putObject(putObjectRequest, file.toPath());
          }
      }
  }
  