On Mon, May 4, 2015 at 11:36 PM, Jan Kyjovský <[email protected]>
wrote:
> Hi,
>
> so we are somehow back in game. And now I am getting familiar what I have
> done more then half a year ago.
>
> So for now I got some basic structure of code that will later be as a
> starting point for real implementation. I am trying to do some simple
> experiments to see how it works. Though I got problem that even if I get
> descriptor I am not getting any data. I have used example from encoding
> specification since I needed something really simple.
>
> ...
> const Descriptor* descriptor =
> pool.FindMessageTypeByName("tutorial.Test1");
> if (descriptor == NULL)
> {
> return;
> }
> DynamicMessageFactory factory;
> Message *message = factory.GetPrototype(descriptor)->New();
> // Use the message object for parsing/etc.
> std::string input_data = "089601";
>
ParseFromString() expects protobuf binary format data (stored in a C++
string), which I believe 089601 is not.
>
> message->ParseFromString(input_data);
>
You could check the return value of ParseFromString() to see whether the
parsing is a success.
> // Access a specific field in the message
>
> for (int i = 0; i < descriptor->field_count(); i++)
> {
> const FieldDescriptor* field = descriptor->field(i);
> switch (field->type())
> {
> case FieldDescriptor::TYPE_INT32:
> {
> int nVal =
> message->GetReflection()->GetInt32(*message, field);
> printf("%d\n", nVal);
>
> break;
> }
> ...
>
> But from reflection I am getting that value is 0. So either I have wrongly
> set input data considering that I misunderstand format or there is
> something else. Do you have any idea what may be cause?
>
> Thank you in advance for your reply.
>
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