// TODO: test out put item expected and return value
  @Test
  public void getItemTest() {
    AttributeValue hash = createItem(tableName);

    GetItemRequest request = new GetItemRequest().withTableName(tableName);
    request.setKey(createItemKey("id", hash));
    GetItemResult res = getClient().getItem(request);

    Assert.assertNotNull(res.getItem());
    Assert.assertEquals(res.getItem().get("id"), hash);
  }
  @Override
  public TranscodingJob get(final String jobId) {
    final ImmutableMap.Builder<String, AttributeValue> keyBuilder = ImmutableMap.builder();
    keyBuilder.put("transcode-job-id", new AttributeValue(jobId));

    try {
      final GetItemResult result = this.dynamoDB.getItem(TABLE_NAME, keyBuilder.build());
      return new TranscodingJob(
          result.getItem().get("transcode-job-id").getS(),
          Paths.get(result.getItem().get("inputMovie").getS()),
          Paths.get(result.getItem().get("outputMovie").getS()));
    } catch (final AmazonServiceException e) {
      logger.error("AmazonServiceException while getting {}.  RID: {}", jobId, e.getRequestId(), e);
      throw e;
    } catch (final AmazonClientException e) {
      logger.error("AmazonClientException while getting {}.", jobId, e);
      throw e;
    }
  }
  public GetItemResult unmarshall(JsonUnmarshallerContext context) throws Exception {
    GetItemResult getItemResult = new GetItemResult();

    int originalDepth = context.getCurrentDepth();
    String currentParentElement = context.getCurrentParentElement();
    int targetDepth = originalDepth + 1;

    JsonToken token = context.currentToken;
    if (token == null) token = context.nextToken();
    if (token == VALUE_NULL) return null;

    while (true) {
      if (token == null) break;

      if (token == FIELD_NAME || token == START_OBJECT) {
        if (context.testExpression("Item", targetDepth)) {
          context.nextToken();
          getItemResult.setItem(
              new MapUnmarshaller<String, AttributeValue>(
                      StringJsonUnmarshaller.getInstance(),
                      AttributeValueJsonUnmarshaller.getInstance())
                  .unmarshall(context));
        }
        if (context.testExpression("ConsumedCapacity", targetDepth)) {
          context.nextToken();
          getItemResult.setConsumedCapacity(
              ConsumedCapacityJsonUnmarshaller.getInstance().unmarshall(context));
        }
      } else if (token == END_ARRAY || token == END_OBJECT) {
        if (context.getLastParsedParentElement() == null
            || context.getLastParsedParentElement().equals(currentParentElement)) {
          if (context.getCurrentDepth() <= originalDepth) break;
        }
      }

      token = context.nextToken();
    }

    return getItemResult;
  }