examples: Example for loading DML message modules

examples/src/example-dml-module.cpp

@@ -0,0 +1,64 @@
+#include <ki/protocol/dml/MessageManager.h>
+#include <ki/protocol/exception.h>
+#include <iostream>
+
+using namespace ki::protocol;
+
+int main(int argc, char **argv)
+{
+	// Get command-line arguments
+	if (argc < 3)
+	{
+		std::cout << "usage: example-dml-module.exe <module_file> <message_name>" << std::endl;
+		std::cout << "Prints out information for specified message." << std::endl;
+		return 1;
+	}
+
+	// Create a manager to load modules into
+	auto *message_manager = new dml::MessageManager();
+	const dml::MessageModule *message_module;
+
+	// Load the message module file
+	const std::string filepath = argv[1];
+	try
+	{
+		message_module = message_manager->load_module(filepath);
+	}
+	catch (value_error &e)
+	{
+		std::cout << "Failed to load message module.";
+		return 1;
+	}
+
+	// Print some information about the module itself
+	std::cout << "Service ID: " << (uint16_t)message_module->get_service_id() << std::endl;
+	std::cout << "Protocol Type: " << message_module->get_protocol_type() << std::endl;
+
+	// Get the message template from the module we just loaded
+	const std::string message_name = argv[2];
+	auto *message_template = message_module->get_message_template(message_name);
+	if (message_template)
+	{
+		std::cout << "Message Name: " << message_template->get_name() << std::endl;
+		std::cout << "Mesasge Type: " << (uint16_t)message_template->get_type() << std::endl;
+
+		// Print out the fields in the template record
+		std::cout << std::endl;
+		auto &record = message_template->get_record();
+		for (auto it = record.fields_begin();
+			it != record.fields_end(); ++it)
+		{
+			auto *field = *it;
+			if (field->is_transferable())
+				std::cout << field->get_type_name() << " " << field->get_name() << ";" << std::endl;
+		}
+	}
+	else
+	{
+		std::cout << "Could not find message with name: " << message_name << std::endl;
+		return 1;
+	}
+
+	// Exit successfully
+	return 0;
+}