/** Returns the plaintext length from the request and metadata; or -1 if unknown. */
 protected final long plaintextLength(PutObjectRequest request, ObjectMetadata metadata) {
   if (request.getFile() != null) {
     return request.getFile().length();
   } else if (request.getInputStream() != null
       && metadata.getRawMetadata().get(Headers.CONTENT_LENGTH) != null) {
     return metadata.getContentLength();
   }
   return -1;
 }
  /**
   * Returns the content length of the unencrypted data in a PutObjectRequest, or -1 if the original
   * content-length isn't known.
   *
   * @param request The request to examine.
   * @param metadata The metadata for the request.
   * @return The content length of the unencrypted data in the request, or -1 if it isn't known.
   * @deprecated no longer used and will be removed in the future
   */
  @Deprecated
  private static long getUnencryptedContentLength(
      PutObjectRequest request, ObjectMetadata metadata) {
    if (request.getFile() != null) {
      return request.getFile().length();
    } else if (request.getInputStream() != null
        && metadata.getRawMetadataValue(Headers.CONTENT_LENGTH) != null) {
      return metadata.getContentLength();
    }

    return -1;
  }
  /**
   * Returns the size of the data in this request, otherwise -1 if the content length is unknown.
   *
   * @param putObjectRequest The request to check.
   * @return The size of the data in this request, otherwise -1 if the size of the data is unknown.
   */
  public static long getContentLength(PutObjectRequest putObjectRequest) {
    File file = getRequestFile(putObjectRequest);
    if (file != null) return file.length();

    if (putObjectRequest.getInputStream() != null) {
      if (putObjectRequest.getMetadata().getContentLength() > 0) {
        return putObjectRequest.getMetadata().getContentLength();
      }
    }

    return -1;
  }
  private CipherLiteInputStream newS3CipherLiteInputStream(
      PutObjectRequest req, ContentCryptoMaterial cekMaterial, long plaintextLength) {
    try {
      InputStream is = req.getInputStream();
      if (req.getFile() != null) is = new RepeatableFileInputStream(req.getFile());
      if (plaintextLength > -1) {
        // S3 allows a single PUT to be no more than 5GB, which
        // therefore won't exceed the maximum length that can be
        // encrypted either using any cipher such as CBC or GCM.

        // This ensures the plain-text read from the underlying data
        // stream has the same length as the expected total.
        is = new LengthCheckInputStream(is, plaintextLength, EXCLUDE_SKIPPED_BYTES);
      }
      return new CipherLiteInputStream(is, cekMaterial.getCipherLite(), DEFAULT_BUFFER_SIZE);
    } catch (Exception e) {
      throw new AmazonClientException("Unable to create cipher input stream: " + e.getMessage(), e);
    }
  }
 /**
  * @param plaintextLength the expected total number of bytes of the plaintext; or -1 if not
  *     available.
  * @deprecated no longer used and will be removed in the future
  */
 @Deprecated
 private static InputStream getEncryptedInputStream(
     PutObjectRequest request, CipherFactory cipherFactory, long plaintextLength) {
   try {
     InputStream is = request.getInputStream();
     if (request.getFile() != null) {
       // Historically file takes precedence over the original input
       // stream
       is = new RepeatableFileInputStream(request.getFile());
     }
     if (plaintextLength > -1) {
       // This ensures the plain-text read from the underlying data
       // stream has the same length as the expected total
       is = new LengthCheckInputStream(is, plaintextLength, EXCLUDE_SKIPPED_BYTES);
     }
     return new RepeatableCipherInputStream(is, cipherFactory);
   } catch (Exception e) {
     throw new AmazonClientException("Unable to create cipher input stream: " + e.getMessage(), e);
   }
 }