Search code examples
c++cross-platformice

Explicitly serialize Slice object to string or ostream in C++

Is there a way to explicitly serialize a Slice object to a string using ice? The problem is that there is an object which must be sendable by json / xml / ice and since ice already has a platform independent object in the Specification Language for Ice(Slice), there is no need to include another library like protobuf. But as far as I can see, it is not possible to serialize the object explicitly. Am I wrong?

Solution

  • You can serialize the object in the Ice binary format using the OutputStream API

    Ice::ByteSeq inParams, outParams;
Ice::OutputStream out(communicator);
out.startEncapsulation();
Demo::CPtr c = new Demo::C;
c->s.name = "blue";
c->s.value = Demo::blue;
out.write(c);
out.writePendingValues();
out.endEncapsulation();
out.finished(inParams);

    There is additional examples in ice-demos repository https://github.com/zeroc-ice/ice-demos/tree/3.7/cpp98/Ice/invoke

    The docs for OutputStream can be found at https://doc.zeroc.com/ice/3.7/client-server-features/dynamic-ice/streaming-interfaces/c++-streaming-interfaces/the-outputstream-interface-in-c++