# frozen_string_literal: true

# WARNING ABOUT GENERATED CODE
#
# This file is generated. See the contributing guide for more information:
# https://github.com/aws/aws-sdk-ruby/blob/version-3/CONTRIBUTING.md
#
# WARNING ABOUT GENERATED CODE

module Aws::S3

  class MultipartUploadPart

    extend Aws::Deprecations

    # @overload def initialize(bucket_name, object_key, multipart_upload_id, part_number, options = {})
    #   @param [String] bucket_name
    #   @param [String] object_key
    #   @param [String] multipart_upload_id
    #   @param [Integer] part_number
    #   @option options [Client] :client
    # @overload def initialize(options = {})
    #   @option options [required, String] :bucket_name
    #   @option options [required, String] :object_key
    #   @option options [required, String] :multipart_upload_id
    #   @option options [required, Integer] :part_number
    #   @option options [Client] :client
    def initialize(*args)
      options = Hash === args.last ? args.pop.dup : {}
      @bucket_name = extract_bucket_name(args, options)
      @object_key = extract_object_key(args, options)
      @multipart_upload_id = extract_multipart_upload_id(args, options)
      @part_number = extract_part_number(args, options)
      @data = options.delete(:data)
      @client = options.delete(:client) || Client.new(options)
      @waiter_block_warned = false
    end

    # @!group Read-Only Attributes

    # @return [String]
    def bucket_name
      @bucket_name
    end

    # @return [String]
    def object_key
      @object_key
    end

    # @return [String]
    def multipart_upload_id
      @multipart_upload_id
    end

    # @return [Integer]
    def part_number
      @part_number
    end

    # Date and time at which the part was uploaded.
    # @return [Time]
    def last_modified
      data[:last_modified]
    end

    # Entity tag returned when the part was uploaded.
    # @return [String]
    def etag
      data[:etag]
    end

    # Size in bytes of the uploaded part data.
    # @return [Integer]
    def size
      data[:size]
    end

    # This header can be used as a data integrity check to verify that the
    # data received is the same data that was originally sent. This header
    # specifies the base64-encoded, 32-bit CRC-32 checksum of the object.
    # For more information, see [Checking object integrity][1] in the
    # *Amazon S3 User Guide*.
    #
    #
    #
    # [1]: https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html
    # @return [String]
    def checksum_crc32
      data[:checksum_crc32]
    end

    # The base64-encoded, 32-bit CRC-32C checksum of the object. This will
    # only be present if it was uploaded with the object. When you use an
    # API operation on an object that was uploaded using multipart uploads,
    # this value may not be a direct checksum value of the full object.
    # Instead, it's a calculation based on the checksum values of each
    # individual part. For more information about how checksums are
    # calculated with multipart uploads, see [ Checking object integrity][1]
    # in the *Amazon S3 User Guide*.
    #
    #
    #
    # [1]: https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html#large-object-checksums
    # @return [String]
    def checksum_crc32c
      data[:checksum_crc32c]
    end

    # The base64-encoded, 160-bit SHA-1 digest of the object. This will only
    # be present if it was uploaded with the object. When you use the API
    # operation on an object that was uploaded using multipart uploads, this
    # value may not be a direct checksum value of the full object. Instead,
    # it's a calculation based on the checksum values of each individual
    # part. For more information about how checksums are calculated with
    # multipart uploads, see [ Checking object integrity][1] in the *Amazon
    # S3 User Guide*.
    #
    #
    #
    # [1]: https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html#large-object-checksums
    # @return [String]
    def checksum_sha1
      data[:checksum_sha1]
    end

    # This header can be used as a data integrity check to verify that the
    # data received is the same data that was originally sent. This header
    # specifies the base64-encoded, 256-bit SHA-256 digest of the object.
    # For more information, see [Checking object integrity][1] in the
    # *Amazon S3 User Guide*.
    #
    #
    #
    # [1]: https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html
    # @return [String]
    def checksum_sha256
      data[:checksum_sha256]
    end

    # @!endgroup

    # @return [Client]
    def client
      @client
    end

    # @raise [NotImplementedError]
    # @api private
    def load
      msg = "#load is not implemented, data only available via enumeration"
      raise NotImplementedError, msg
    end
    alias :reload :load

    # @raise [NotImplementedError] Raises when {#data_loaded?} is `false`.
    # @return [Types::Part]
    #   Returns the data for this {MultipartUploadPart}.
    def data
      load unless @data
      @data
    end

    # @return [Boolean]
    #   Returns `true` if this resource is loaded.  Accessing attributes or
    #   {#data} on an unloaded resource will trigger a call to {#load}.
    def data_loaded?
      !!@data
    end

    # @deprecated Use [Aws::S3::Client] #wait_until instead
    #
    # Waiter polls an API operation until a resource enters a desired
    # state.
    #
    # @note The waiting operation is performed on a copy. The original resource
    #   remains unchanged.
    #
    # ## Basic Usage
    #
    # Waiter will polls until it is successful, it fails by
    # entering a terminal state, or until a maximum number of attempts
    # are made.
    #
    #     # polls in a loop until condition is true
    #     resource.wait_until(options) {|resource| condition}
    #
    # ## Example
    #
    #     instance.wait_until(max_attempts:10, delay:5) do |instance|
    #       instance.state.name == 'running'
    #     end
    #
    # ## Configuration
    #
    # You can configure the maximum number of polling attempts, and the
    # delay (in seconds) between each polling attempt. The waiting condition is
    # set by passing a block to {#wait_until}:
    #
    #     # poll for ~25 seconds
    #     resource.wait_until(max_attempts:5,delay:5) {|resource|...}
    #
    # ## Callbacks
    #
    # You can be notified before each polling attempt and before each
    # delay. If you throw `:success` or `:failure` from these callbacks,
    # it will terminate the waiter.
    #
    #     started_at = Time.now
    #     # poll for 1 hour, instead of a number of attempts
    #     proc = Proc.new do |attempts, response|
    #       throw :failure if Time.now - started_at > 3600
    #     end
    #
    #       # disable max attempts
    #     instance.wait_until(before_wait:proc, max_attempts:nil) {...}
    #
    # ## Handling Errors
    #
    # When a waiter is successful, it returns the Resource. When a waiter
    # fails, it raises an error.
    #
    #     begin
    #       resource.wait_until(...)
    #     rescue Aws::Waiters::Errors::WaiterFailed
    #       # resource did not enter the desired state in time
    #     end
    #
    # @yieldparam [Resource] resource to be used in the waiting condition.
    #
    # @raise [Aws::Waiters::Errors::FailureStateError] Raised when the waiter
    #   terminates because the waiter has entered a state that it will not
    #   transition out of, preventing success.
    #
    #   yet successful.
    #
    # @raise [Aws::Waiters::Errors::UnexpectedError] Raised when an error is
    #   encountered while polling for a resource that is not expected.
    #
    # @raise [NotImplementedError] Raised when the resource does not
    #
    # @option options [Integer] :max_attempts (10) Maximum number of
    # attempts
    # @option options [Integer] :delay (10) Delay between each
    # attempt in seconds
    # @option options [Proc] :before_attempt (nil) Callback
    # invoked before each attempt
    # @option options [Proc] :before_wait (nil) Callback
    # invoked before each wait
    # @return [Resource] if the waiter was successful
    def wait_until(options = {}, &block)
      self_copy = self.dup
      attempts = 0
      options[:max_attempts] = 10 unless options.key?(:max_attempts)
      options[:delay] ||= 10
      options[:poller] = Proc.new do
        attempts += 1
        if block.call(self_copy)
          [:success, self_copy]
        else
          self_copy.reload unless attempts == options[:max_attempts]
          :retry
        end
      end
      Aws::Plugins::UserAgent.metric('RESOURCE_MODEL') do
        Aws::Waiters::Waiter.new(options).wait({})
      end
    end

    # @!group Actions

    # @example Request syntax with placeholder values
    #
    #   multipart_upload_part.copy_from({
    #     copy_source: "CopySource", # required
    #     copy_source_if_match: "CopySourceIfMatch",
    #     copy_source_if_modified_since: Time.now,
    #     copy_source_if_none_match: "CopySourceIfNoneMatch",
    #     copy_source_if_unmodified_since: Time.now,
    #     copy_source_range: "CopySourceRange",
    #     sse_customer_algorithm: "SSECustomerAlgorithm",
    #     sse_customer_key: "SSECustomerKey",
    #     sse_customer_key_md5: "SSECustomerKeyMD5",
    #     copy_source_sse_customer_algorithm: "CopySourceSSECustomerAlgorithm",
    #     copy_source_sse_customer_key: "CopySourceSSECustomerKey",
    #     copy_source_sse_customer_key_md5: "CopySourceSSECustomerKeyMD5",
    #     request_payer: "requester", # accepts requester
    #     expected_bucket_owner: "AccountId",
    #     expected_source_bucket_owner: "AccountId",
    #   })
    # @param [Hash] options ({})
    # @option options [required, String] :copy_source
    #   Specifies the source object for the copy operation. You specify the
    #   value in one of two formats, depending on whether you want to access
    #   the source object through an [access point][1]:
    #
    #   * For objects not accessed through an access point, specify the name
    #     of the source bucket and key of the source object, separated by a
    #     slash (/). For example, to copy the object `reports/january.pdf`
    #     from the bucket `awsexamplebucket`, use
    #     `awsexamplebucket/reports/january.pdf`. The value must be
    #     URL-encoded.
    #
    #   * For objects accessed through access points, specify the Amazon
    #     Resource Name (ARN) of the object as accessed through the access
    #     point, in the format
    #     `arn:aws:s3:<Region>:<account-id>:accesspoint/<access-point-name>/object/<key>`.
    #     For example, to copy the object `reports/january.pdf` through access
    #     point `my-access-point` owned by account `123456789012` in Region
    #     `us-west-2`, use the URL encoding of
    #     `arn:aws:s3:us-west-2:123456789012:accesspoint/my-access-point/object/reports/january.pdf`.
    #     The value must be URL encoded.
    #
    #     <note markdown="1"> * Amazon S3 supports copy operations using Access points only when
    #       the source and destination buckets are in the same Amazon Web
    #       Services Region.
    #
    #     * Access points are not supported by directory buckets.
    #
    #      </note>
    #
    #     Alternatively, for objects accessed through Amazon S3 on Outposts,
    #     specify the ARN of the object as accessed in the format
    #     `arn:aws:s3-outposts:<Region>:<account-id>:outpost/<outpost-id>/object/<key>`.
    #     For example, to copy the object `reports/january.pdf` through
    #     outpost `my-outpost` owned by account `123456789012` in Region
    #     `us-west-2`, use the URL encoding of
    #     `arn:aws:s3-outposts:us-west-2:123456789012:outpost/my-outpost/object/reports/january.pdf`.
    #     The value must be URL-encoded.
    #
    #   If your bucket has versioning enabled, you could have multiple
    #   versions of the same object. By default, `x-amz-copy-source`
    #   identifies the current version of the source object to copy. To copy a
    #   specific version of the source object to copy, append
    #   `?versionId=<version-id>` to the `x-amz-copy-source` request header
    #   (for example, `x-amz-copy-source:
    #   /awsexamplebucket/reports/january.pdf?versionId=QUpfdndhfd8438MNFDN93jdnJFkdmqnh893`).
    #
    #   If the current version is a delete marker and you don't specify a
    #   versionId in the `x-amz-copy-source` request header, Amazon S3 returns
    #   a `404 Not Found` error, because the object does not exist. If you
    #   specify versionId in the `x-amz-copy-source` and the versionId is a
    #   delete marker, Amazon S3 returns an HTTP `400 Bad Request` error,
    #   because you are not allowed to specify a delete marker as a version
    #   for the `x-amz-copy-source`.
    #
    #   <note markdown="1"> **Directory buckets** - S3 Versioning isn't enabled and supported for
    #   directory buckets.
    #
    #    </note>
    #
    #
    #
    #   [1]: https://docs.aws.amazon.com/AmazonS3/latest/userguide/access-points.html
    # @option options [String] :copy_source_if_match
    #   Copies the object if its entity tag (ETag) matches the specified tag.
    #
    #   If both of the `x-amz-copy-source-if-match` and
    #   `x-amz-copy-source-if-unmodified-since` headers are present in the
    #   request as follows:
    #
    #   `x-amz-copy-source-if-match` condition evaluates to `true`, and;
    #
    #   `x-amz-copy-source-if-unmodified-since` condition evaluates to
    #   `false`;
    #
    #   Amazon S3 returns `200 OK` and copies the data.
    # @option options [Time,DateTime,Date,Integer,String] :copy_source_if_modified_since
    #   Copies the object if it has been modified since the specified time.
    #
    #   If both of the `x-amz-copy-source-if-none-match` and
    #   `x-amz-copy-source-if-modified-since` headers are present in the
    #   request as follows:
    #
    #   `x-amz-copy-source-if-none-match` condition evaluates to `false`, and;
    #
    #   `x-amz-copy-source-if-modified-since` condition evaluates to `true`;
    #
    #   Amazon S3 returns `412 Precondition Failed` response code.
    # @option options [String] :copy_source_if_none_match
    #   Copies the object if its entity tag (ETag) is different than the
    #   specified ETag.
    #
    #   If both of the `x-amz-copy-source-if-none-match` and
    #   `x-amz-copy-source-if-modified-since` headers are present in the
    #   request as follows:
    #
    #   `x-amz-copy-source-if-none-match` condition evaluates to `false`, and;
    #
    #   `x-amz-copy-source-if-modified-since` condition evaluates to `true`;
    #
    #   Amazon S3 returns `412 Precondition Failed` response code.
    # @option options [Time,DateTime,Date,Integer,String] :copy_source_if_unmodified_since
    #   Copies the object if it hasn't been modified since the specified
    #   time.
    #
    #   If both of the `x-amz-copy-source-if-match` and
    #   `x-amz-copy-source-if-unmodified-since` headers are present in the
    #   request as follows:
    #
    #   `x-amz-copy-source-if-match` condition evaluates to `true`, and;
    #
    #   `x-amz-copy-source-if-unmodified-since` condition evaluates to
    #   `false`;
    #
    #   Amazon S3 returns `200 OK` and copies the data.
    # @option options [String] :copy_source_range
    #   The range of bytes to copy from the source object. The range value
    #   must use the form bytes=first-last, where the first and last are the
    #   zero-based byte offsets to copy. For example, bytes=0-9 indicates that
    #   you want to copy the first 10 bytes of the source. You can copy a
    #   range only if the source object is greater than 5 MB.
    # @option options [String] :sse_customer_algorithm
    #   Specifies the algorithm to use when encrypting the object (for
    #   example, AES256).
    #
    #   <note markdown="1"> This functionality is not supported when the destination bucket is a
    #   directory bucket.
    #
    #    </note>
    # @option options [String] :sse_customer_key
    #   Specifies the customer-provided encryption key for Amazon S3 to use in
    #   encrypting data. This value is used to store the object and then it is
    #   discarded; Amazon S3 does not store the encryption key. The key must
    #   be appropriate for use with the algorithm specified in the
    #   `x-amz-server-side-encryption-customer-algorithm` header. This must be
    #   the same encryption key specified in the initiate multipart upload
    #   request.
    #
    #   <note markdown="1"> This functionality is not supported when the destination bucket is a
    #   directory bucket.
    #
    #    </note>
    # @option options [String] :sse_customer_key_md5
    #   Specifies the 128-bit MD5 digest of the encryption key according to
    #   RFC 1321. Amazon S3 uses this header for a message integrity check to
    #   ensure that the encryption key was transmitted without error.
    #
    #   <note markdown="1"> This functionality is not supported when the destination bucket is a
    #   directory bucket.
    #
    #    </note>
    # @option options [String] :copy_source_sse_customer_algorithm
    #   Specifies the algorithm to use when decrypting the source object (for
    #   example, `AES256`).
    #
    #   <note markdown="1"> This functionality is not supported when the source object is in a
    #   directory bucket.
    #
    #    </note>
    # @option options [String] :copy_source_sse_customer_key
    #   Specifies the customer-provided encryption key for Amazon S3 to use to
    #   decrypt the source object. The encryption key provided in this header
    #   must be one that was used when the source object was created.
    #
    #   <note markdown="1"> This functionality is not supported when the source object is in a
    #   directory bucket.
    #
    #    </note>
    # @option options [String] :copy_source_sse_customer_key_md5
    #   Specifies the 128-bit MD5 digest of the encryption key according to
    #   RFC 1321. Amazon S3 uses this header for a message integrity check to
    #   ensure that the encryption key was transmitted without error.
    #
    #   <note markdown="1"> This functionality is not supported when the source object is in a
    #   directory bucket.
    #
    #    </note>
    # @option options [String] :request_payer
    #   Confirms that the requester knows that they will be charged for the
    #   request. Bucket owners need not specify this parameter in their
    #   requests. If either the source or destination S3 bucket has Requester
    #   Pays enabled, the requester will pay for corresponding charges to copy
    #   the object. For information about downloading objects from Requester
    #   Pays buckets, see [Downloading Objects in Requester Pays Buckets][1]
    #   in the *Amazon S3 User Guide*.
    #
    #   <note markdown="1"> This functionality is not supported for directory buckets.
    #
    #    </note>
    #
    #
    #
    #   [1]: https://docs.aws.amazon.com/AmazonS3/latest/dev/ObjectsinRequesterPaysBuckets.html
    # @option options [String] :expected_bucket_owner
    #   The account ID of the expected destination bucket owner. If the
    #   account ID that you provide does not match the actual owner of the
    #   destination bucket, the request fails with the HTTP status code `403
    #   Forbidden` (access denied).
    # @option options [String] :expected_source_bucket_owner
    #   The account ID of the expected source bucket owner. If the account ID
    #   that you provide does not match the actual owner of the source bucket,
    #   the request fails with the HTTP status code `403 Forbidden` (access
    #   denied).
    # @return [Types::UploadPartCopyOutput]
    def copy_from(options = {})
      options = options.merge(
        bucket: @bucket_name,
        key: @object_key,
        upload_id: @multipart_upload_id,
        part_number: @part_number
      )
      resp = Aws::Plugins::UserAgent.metric('RESOURCE_MODEL') do
        @client.upload_part_copy(options)
      end
      resp.data
    end

    # @example Request syntax with placeholder values
    #
    #   multipart_upload_part.upload({
    #     body: source_file,
    #     content_length: 1,
    #     content_md5: "ContentMD5",
    #     checksum_algorithm: "CRC32", # accepts CRC32, CRC32C, SHA1, SHA256
    #     checksum_crc32: "ChecksumCRC32",
    #     checksum_crc32c: "ChecksumCRC32C",
    #     checksum_sha1: "ChecksumSHA1",
    #     checksum_sha256: "ChecksumSHA256",
    #     sse_customer_algorithm: "SSECustomerAlgorithm",
    #     sse_customer_key: "SSECustomerKey",
    #     sse_customer_key_md5: "SSECustomerKeyMD5",
    #     request_payer: "requester", # accepts requester
    #     expected_bucket_owner: "AccountId",
    #   })
    # @param [Hash] options ({})
    # @option options [String, StringIO, File] :body
    #   Object data.
    # @option options [Integer] :content_length
    #   Size of the body in bytes. This parameter is useful when the size of
    #   the body cannot be determined automatically.
    # @option options [String] :content_md5
    #   The base64-encoded 128-bit MD5 digest of the part data. This parameter
    #   is auto-populated when using the command from the CLI. This parameter
    #   is required if object lock parameters are specified.
    #
    #   <note markdown="1"> This functionality is not supported for directory buckets.
    #
    #    </note>
    # @option options [String] :checksum_algorithm
    #   Indicates the algorithm used to create the checksum for the object
    #   when you use the SDK. This header will not provide any additional
    #   functionality if you don't use the SDK. When you send this header,
    #   there must be a corresponding `x-amz-checksum` or `x-amz-trailer`
    #   header sent. Otherwise, Amazon S3 fails the request with the HTTP
    #   status code `400 Bad Request`. For more information, see [Checking
    #   object integrity][1] in the *Amazon S3 User Guide*.
    #
    #   If you provide an individual checksum, Amazon S3 ignores any provided
    #   `ChecksumAlgorithm` parameter.
    #
    #   This checksum algorithm must be the same for all parts and it match
    #   the checksum value supplied in the `CreateMultipartUpload` request.
    #
    #
    #
    #   [1]: https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html
    # @option options [String] :checksum_crc32
    #   This header can be used as a data integrity check to verify that the
    #   data received is the same data that was originally sent. This header
    #   specifies the base64-encoded, 32-bit CRC-32 checksum of the object.
    #   For more information, see [Checking object integrity][1] in the
    #   *Amazon S3 User Guide*.
    #
    #
    #
    #   [1]: https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html
    # @option options [String] :checksum_crc32c
    #   This header can be used as a data integrity check to verify that the
    #   data received is the same data that was originally sent. This header
    #   specifies the base64-encoded, 32-bit CRC-32C checksum of the object.
    #   For more information, see [Checking object integrity][1] in the
    #   *Amazon S3 User Guide*.
    #
    #
    #
    #   [1]: https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html
    # @option options [String] :checksum_sha1
    #   This header can be used as a data integrity check to verify that the
    #   data received is the same data that was originally sent. This header
    #   specifies the base64-encoded, 160-bit SHA-1 digest of the object. For
    #   more information, see [Checking object integrity][1] in the *Amazon S3
    #   User Guide*.
    #
    #
    #
    #   [1]: https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html
    # @option options [String] :checksum_sha256
    #   This header can be used as a data integrity check to verify that the
    #   data received is the same data that was originally sent. This header
    #   specifies the base64-encoded, 256-bit SHA-256 digest of the object.
    #   For more information, see [Checking object integrity][1] in the
    #   *Amazon S3 User Guide*.
    #
    #
    #
    #   [1]: https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html
    # @option options [String] :sse_customer_algorithm
    #   Specifies the algorithm to use when encrypting the object (for
    #   example, AES256).
    #
    #   <note markdown="1"> This functionality is not supported for directory buckets.
    #
    #    </note>
    # @option options [String] :sse_customer_key
    #   Specifies the customer-provided encryption key for Amazon S3 to use in
    #   encrypting data. This value is used to store the object and then it is
    #   discarded; Amazon S3 does not store the encryption key. The key must
    #   be appropriate for use with the algorithm specified in the
    #   `x-amz-server-side-encryption-customer-algorithm header`. This must be
    #   the same encryption key specified in the initiate multipart upload
    #   request.
    #
    #   <note markdown="1"> This functionality is not supported for directory buckets.
    #
    #    </note>
    # @option options [String] :sse_customer_key_md5
    #   Specifies the 128-bit MD5 digest of the encryption key according to
    #   RFC 1321. Amazon S3 uses this header for a message integrity check to
    #   ensure that the encryption key was transmitted without error.
    #
    #   <note markdown="1"> This functionality is not supported for directory buckets.
    #
    #    </note>
    # @option options [String] :request_payer
    #   Confirms that the requester knows that they will be charged for the
    #   request. Bucket owners need not specify this parameter in their
    #   requests. If either the source or destination S3 bucket has Requester
    #   Pays enabled, the requester will pay for corresponding charges to copy
    #   the object. For information about downloading objects from Requester
    #   Pays buckets, see [Downloading Objects in Requester Pays Buckets][1]
    #   in the *Amazon S3 User Guide*.
    #
    #   <note markdown="1"> This functionality is not supported for directory buckets.
    #
    #    </note>
    #
    #
    #
    #   [1]: https://docs.aws.amazon.com/AmazonS3/latest/dev/ObjectsinRequesterPaysBuckets.html
    # @option options [String] :expected_bucket_owner
    #   The account ID of the expected bucket owner. If the account ID that
    #   you provide does not match the actual owner of the bucket, the request
    #   fails with the HTTP status code `403 Forbidden` (access denied).
    # @return [Types::UploadPartOutput]
    def upload(options = {})
      options = options.merge(
        bucket: @bucket_name,
        key: @object_key,
        upload_id: @multipart_upload_id,
        part_number: @part_number
      )
      resp = Aws::Plugins::UserAgent.metric('RESOURCE_MODEL') do
        @client.upload_part(options)
      end
      resp.data
    end

    # @!group Associations

    # @return [MultipartUpload]
    def multipart_upload
      MultipartUpload.new(
        bucket_name: @bucket_name,
        object_key: @object_key,
        id: @multipart_upload_id,
        client: @client
      )
    end

    # @deprecated
    # @api private
    def identifiers
      {
        bucket_name: @bucket_name,
        object_key: @object_key,
        multipart_upload_id: @multipart_upload_id,
        part_number: @part_number
      }
    end
    deprecated(:identifiers)

    private

    def extract_bucket_name(args, options)
      value = args[0] || options.delete(:bucket_name)
      case value
      when String then value
      when nil then raise ArgumentError, "missing required option :bucket_name"
      else
        msg = "expected :bucket_name to be a String, got #{value.class}"
        raise ArgumentError, msg
      end
    end

    def extract_object_key(args, options)
      value = args[1] || options.delete(:object_key)
      case value
      when String then value
      when nil then raise ArgumentError, "missing required option :object_key"
      else
        msg = "expected :object_key to be a String, got #{value.class}"
        raise ArgumentError, msg
      end
    end

    def extract_multipart_upload_id(args, options)
      value = args[2] || options.delete(:multipart_upload_id)
      case value
      when String then value
      when nil then raise ArgumentError, "missing required option :multipart_upload_id"
      else
        msg = "expected :multipart_upload_id to be a String, got #{value.class}"
        raise ArgumentError, msg
      end
    end

    def extract_part_number(args, options)
      value = args[3] || options.delete(:part_number)
      case value
      when Integer then value
      when nil then raise ArgumentError, "missing required option :part_number"
      else
        msg = "expected :part_number to be a Integer, got #{value.class}"
        raise ArgumentError, msg
      end
    end

    class Collection < Aws::Resources::Collection; end
  end
end