void RequestHandler::on_error_response(ResponseMessage* response) {
ErrorResponse* error =
static_cast<ErrorResponse*>(response->response_body().get());
switch(error->code()) {
case CQL_ERROR_UNPREPARED:
on_error_unprepared(error);
break;
case CQL_ERROR_READ_TIMEOUT:
handle_retry_decision(response,
retry_policy_->on_read_timeout(error->consistency(),
error->received(),
error->required(),
error->data_present() > 0,
num_retries_));
break;
case CQL_ERROR_WRITE_TIMEOUT:
handle_retry_decision(response,
retry_policy_->on_write_timeout(error->consistency(),
error->received(),
error->required(),
error->write_type(),
num_retries_));
break;
case CQL_ERROR_UNAVAILABLE:
handle_retry_decision(response,
retry_policy_->on_unavailable(error->consistency(),
error->required(),
error->received(),
num_retries_));
break;
default:
set_error(static_cast<CassError>(CASS_ERROR(
CASS_ERROR_SOURCE_SERVER, error->code())),
error->message().to_string());
break;
}
}
void RequestHandler::handle_retry_decision(ResponseMessage* response,
const RetryPolicy::RetryDecision& decision) {
ErrorResponse* error =
static_cast<ErrorResponse*>(response->response_body().get());
switch(decision.type()) {
case RetryPolicy::RetryDecision::RETURN_ERROR:
set_error_with_error_response(response->response_body(),
static_cast<CassError>(CASS_ERROR(
CASS_ERROR_SOURCE_SERVER, error->code())),
error->message().to_string());
break;
case RetryPolicy::RetryDecision::RETRY:
set_consistency(decision.retry_consistency());
if (!decision.retry_current_host()) {
next_host();
}
if (state() == REQUEST_STATE_DONE) {
retry();
} else {
set_state(REQUEST_STATE_RETRY_WRITE_OUTSTANDING);
}
break;
case RetryPolicy::RetryDecision::IGNORE:
set_response(SharedRefPtr<Response>(new ResultResponse()));
break;
}
num_retries_++;
}