test_rr_graph_reader_interface_to_capnp.cpp

#include "rr_graph_uxsdcxx.h"
#include "rr_graph_uxsdcxx.capnp.h"
#include "rr_graph_uxsdcxx_capnp_impl.h"
#include "capnp/serialize.h"
#include "kj/filesystem.h"
#include <fstream>

int main(int argc, char * argv[]) {


	if(argc < 3) {
		throw std::runtime_error("No file argument provided");
	}

	::capnp::MallocMessageBuilder builder;
	auto graph = builder.initRoot<ucap::RrGraph>();
	uxsd::CapnpRrGraph test;
	load_rr_graph_xml(test, graph, argv[1]);

	try {
		auto fs = kj::newDiskFilesystem();
		auto path = fs->getCurrentPath().evalNative(argv[2]);

		const auto& dir = fs->getRoot();
		auto f = dir.openFile(path, kj::WriteMode::CREATE | kj::WriteMode::MODIFY);
		f->truncate(0);
		auto f_app = kj::newFileAppender(std::move(f));
		capnp::writeMessage(*f_app, builder);
	} catch (kj::Exception& e) {
		throw std::runtime_error(e.getDescription().cStr());
	}

    return 0;
}