How to use

SuccessCallback

in

com.yahoo.bard.webservice.druid.client

@Override
public Future<JsonNode> executeQuery(
    DruidQuery<?> druidQuery,
    SuccessCallback successCallback,
    FailureCallback failureCallback
) {
  RequestLog logCtx = RequestLog.dump();
  //todo eventually stop/start RequestLog phases
  return CompletableFuture.supplyAsync(() -> {
        try {
          JsonNode jsonNode = executeAndProcessQuery((DruidAggregationQuery) druidQuery);
          if (successCallback != null) {
            successCallback.invoke(jsonNode);
          }
          return jsonNode;
        } catch (Throwable t) {
          LOG.warn("Failed while querying ", t);
          if (failureCallback != null) {
            failureCallback.dispatch(t);
          }
        } finally {
          RequestLog.restore(logCtx);
        }
        return null;
      }
  );
}

@Override
public Response onCompleted(Response response) {
  String druidQueryId = response.getHeader("X-Druid-Query-Id");
  Status status = Status.fromStatusCode(response.getStatusCode());
  logRequest(logCtx, timerName, outstanding, druidQueryId, status);
  if (hasError(status)) {
    markError(status, response, druidQueryId, error);
  } else {
    try {
      success.invoke(jsonNodeBuilderStrategy.apply(response));
    } catch (RuntimeException e) {
      failure.invoke(e);
    }
  }
  // we consumed this response, so pass null to any chains
  return null;
}

  success.invoke(mapper.readTree(weightResponse));
} else if (statusCode == 200) {
  success.invoke(mapper.readTree(jsonResponse.call()));
} else {
  error.invoke(statusCode, reasonPhrase, jsonResponse.call());

  success.invoke(mapper.readTree(jsonResponse.call()));
} else {
  error.invoke(statusCode, reasonPhrase, jsonResponse.call());

  success.invoke(mapper.readTree(weightResponse));
} else if (statusCode == 200) {
  success.invoke(mapper.readTree(jsonResponse.call()));
} else {
  error.invoke(statusCode, reasonPhrase, jsonResponse.call());

  success.invoke(mapper.readTree(jsonResponse.call()));
} else {
  error.invoke(statusCode, reasonPhrase, jsonResponse.call());