Java StorageObject.getKey方法代码示例

import org.jets3t.service.model.StorageObject; //导入方法依赖的package包/类
/**
 * list objects
 * @param prefix prefix
 * @param delimiter delimiter
 * @param maxListingLength max no. of entries
 * @param priorLastKey last key in any previous search
 * @return a list of matches
 * @throws IOException on any reported failure
 */

private PartialListing list(String prefix, String delimiter,
    int maxListingLength, String priorLastKey) throws IOException {
  try {
    if (!prefix.isEmpty() && !prefix.endsWith(PATH_DELIMITER)) {
      prefix += PATH_DELIMITER;
    }
    StorageObjectsChunk chunk = s3Service.listObjectsChunked(bucket.getName(),
        prefix, delimiter, maxListingLength, priorLastKey);
    
    FileMetadata[] fileMetadata =
      new FileMetadata[chunk.getObjects().length];
    for (int i = 0; i < fileMetadata.length; i++) {
      StorageObject object = chunk.getObjects()[i];
      fileMetadata[i] = new FileMetadata(object.getKey(),
          object.getContentLength(), object.getLastModifiedDate().getTime());
    }
    return new PartialListing(chunk.getPriorLastKey(), fileMetadata,
        chunk.getCommonPrefixes());
  } catch (ServiceException e) {
    handleException(e, prefix);
    return null; // never returned - keep compiler happy
  }
}
 

import org.jets3t.service.model.StorageObject; //导入方法依赖的package包/类
/**
 * Compares the expected and actual ETag value for an uploaded object, and throws an
 * ServiceException if these values do not match.
 *
 * @param expectedETag
 * @param uploadedObject
 * @throws org.jets3t.service.ServiceException
 */
protected void verifyExpectedAndActualETagValues(String expectedETag, StorageObject uploadedObject)
    throws ServiceException
{
    // Special handling for S3 MultiPart Part uploads, for which the response's ETag value is
    // an opaque value and is not a hex-encoded MD5 hash value of the uploaded data like all
    // other S3 ETag response values (Issue #141).
    // See https://forums.aws.amazon.com/thread.jspa?messageID=203436&#203436
    if (expectedETag.length() != 32) {
        log.warn("The ETag header value '" + expectedETag + "' returned for "
            + uploadedObject + " is not a valid hex-encoded MD5 hash value;"
            + " cannot verify the correctness of the uploaded data");
        return;
    }

    // Compare our locally-calculated hash with the ETag returned by S3.
    if (!expectedETag.equals(uploadedObject.getETag())) {
        throw new ServiceException("Mismatch between MD5 hash of uploaded data ("
            + expectedETag + ") and ETag returned by S3 ("
            + uploadedObject.getETag() + ") for object key: "
            + uploadedObject.getKey());
    } else {
        if (log.isDebugEnabled()) {
            log.debug("Object upload was automatically verified, the calculated MD5 hash "+
                "value matched the ETag returned by S3: " + uploadedObject.getKey());
        }
    }
}
 

import org.jets3t.service.model.StorageObject; //导入方法依赖的package包/类
/**
 * Throws an exception if an object is null or contains a null/empty key.
 * @param object
 * @param action
 * the action being attempted which this assertion is applied, for debugging purposes.
 * @throws ServiceException
 */
protected void assertValidObject(StorageObject object, String action) throws ServiceException {
    if (object == null || object.getKey() == null || object.getKey().length() == 0) {
        throw new ServiceException("The action " + action
            + " cannot be performed with an invalid object: " + object);
    }
}