Java UploadPartRequest.setFile方法代码示例

import com.amazonaws.services.s3.model.UploadPartRequest; //导入方法依赖的package包/类
/**
 * Create and initialize a part request of a multipart upload.
 * Exactly one of: {@code uploadStream} or {@code sourceFile}
 * must be specified.
 * @param uploadId ID of ongoing upload
 * @param partNumber current part number of the upload
 * @param size amount of data
 * @param uploadStream source of data to upload
 * @param sourceFile optional source file
 * @return the request
 */
UploadPartRequest newUploadPartRequest(String uploadId,
    int partNumber, int size, InputStream uploadStream, File sourceFile) {
  Preconditions.checkNotNull(uploadId);
  // exactly one source must be set; xor verifies this
  Preconditions.checkArgument((uploadStream != null) ^ (sourceFile != null),
      "Data source");
  Preconditions.checkArgument(size > 0, "Invalid partition size %s", size);
  Preconditions.checkArgument(partNumber > 0 && partNumber <= 10000,
      "partNumber must be between 1 and 10000 inclusive, but is %s",
      partNumber);

  LOG.debug("Creating part upload request for {} #{} size {}",
      uploadId, partNumber, size);
  UploadPartRequest request = new UploadPartRequest()
      .withBucketName(mBucket)
      .withKey(key)
      .withUploadId(uploadId)
      .withPartNumber(partNumber)
      .withPartSize(size);
  if (uploadStream != null) {
    // there's an upload stream. Bind to it.
    request.setInputStream(uploadStream);
  } else {
    request.setFile(sourceFile);
  }
  return request;
}
 

import com.amazonaws.services.s3.model.UploadPartRequest; //导入方法依赖的package包/类
/**
 * {@inheritDoc}
 *
 * <p>
 * <b>NOTE:</b> Because the encryption process requires context from
 * previous blocks, parts uploaded with the AmazonS3EncryptionClient (as
 * opposed to the normal AmazonS3Client) must be uploaded serially, and in
 * order. Otherwise, the previous encryption context isn't available to use
 * when encrypting the current part.
 */
@Override
public UploadPartResult uploadPartSecurely(UploadPartRequest req) {
    appendUserAgent(req, USER_AGENT);
    final int blockSize = contentCryptoScheme.getBlockSizeInBytes();
    final boolean isLastPart = req.isLastPart();
    final String uploadId = req.getUploadId();
    final long partSize = req.getPartSize();
    final boolean partSizeMultipleOfCipherBlockSize = 0 == (partSize % blockSize);
    if (!isLastPart && !partSizeMultipleOfCipherBlockSize) {
        throw new SdkClientException(
            "Invalid part size: part sizes for encrypted multipart uploads must be multiples "
                + "of the cipher block size ("
                + blockSize
                + ") with the exception of the last part.");
    }
    final T uploadContext = multipartUploadContexts.get(uploadId);
    if (uploadContext == null) {
        throw new SdkClientException(
            "No client-side information available on upload ID " + uploadId);
    }
    final UploadPartResult result;
    // Checks the parts are uploaded in series
    uploadContext.beginPartUpload(req.getPartNumber());
    CipherLite cipherLite = cipherLiteForNextPart(uploadContext);
    final File fileOrig = req.getFile();
    final InputStream isOrig = req.getInputStream();
    SdkFilterInputStream isCurr = null;
    try {
        CipherLiteInputStream clis = newMultipartS3CipherInputStream(req, cipherLite);
        isCurr = clis; // so the clis will be closed (in the finally block below) upon
                   // unexpected failure should we opened a file undereath
        isCurr = wrapForMultipart(clis, partSize);
        req.setInputStream(isCurr);
        // Treat all encryption requests as input stream upload requests,
        // not as file upload requests.
        req.setFile(null);
        req.setFileOffset(0);
        // The last part of the multipart upload will contain an extra
        // 16-byte mac
        if (isLastPart) {
            // We only change the size of the last part
            long lastPartSize = computeLastPartSize(req);
            if (lastPartSize > -1)
                req.setPartSize(lastPartSize);
            if (uploadContext.hasFinalPartBeenSeen()) {
                throw new SdkClientException(
                    "This part was specified as the last part in a multipart upload, but a previous part was already marked as the last part.  "
                  + "Only the last part of the upload should be marked as the last part.");
            }
        }

        result = s3.uploadPart(req);
    } finally {
        cleanupDataSource(req, fileOrig, isOrig, isCurr, log);
        uploadContext.endPartUpload();
    }
    if (isLastPart)
        uploadContext.setHasFinalPartBeenSeen(true);
    updateUploadContext(uploadContext, isCurr);
    return result;
}