zeus/jus/AbstractFunctionTypeDirect.h

216 lines
8.4 KiB
C++

/** @file
* @author Edouard DUPIN
* @copyright 2016, Edouard DUPIN, all right reserved
* @license APACHE v2.0 (see license file)
*/
#pragma once
#include <jus/TcpString.h>
#include <eproperty/Value.h>
#include <ejson/ejson.h>
#include <jus/debug.h>
#include <jus/AbstractFunction.h>
namespace jus {
template <class JUS_RETURN, class... JUS_TYPES>
void executeCallJson(const ememory::SharedPtr<jus::TcpString>& _interfaceClient,
uint64_t _transactionId,
uint64_t _clientId,
JUS_RETURN (*_func)(JUS_TYPES...),
const ejson::Array& _params) {
#if defined(__clang__)
// clang generate a basic warning:
// warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
int32_t idParam = 0;
ejson::Value ret = jus::convertToJson(_func((jus::convertJsonTo<JUS_TYPES>(_params[idParam++]))...));
#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
ejson::Value ret = jus::convertToJson(_func(jus::convertJsonTo<JUS_TYPES>(_params[idParam--])...));
#else
#error Must be implemented ...
ejson::Value ret = ejson::Null();
#endif
ejson::Object answer;
answer.add("id", ejson::Number(_transactionId));
answer.add("client-id", ejson::Number(_clientId));
answer.add("return", ret);
JUS_INFO("Answer: " << answer.generateHumanString());
_interfaceClient->write(answer.generateMachineString());
}
template <class... JUS_TYPES>
void executeCallJson(const ememory::SharedPtr<jus::TcpString>& _interfaceClient,
uint64_t _transactionId,
uint64_t _clientId,
void (*_func)(JUS_TYPES...),
const ejson::Array& _params) {
ejson::Object out;
#if defined(__clang__)
// clang generate a basic warning:
// warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
int32_t idParam = 0;
_func((jus::convertJsonTo<JUS_TYPES>(_params[idParam++]))...);
#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
_func(jus::convertJsonTo<JUS_TYPES>(_params[idParam--])...);
#else
#error Must be implemented ...
#endif
_interfaceClient->addAsync([=](TcpString* _interface) {
ejson::Object answer;
answer.add("id", ejson::Number(_transactionId));
answer.add("client-id", ejson::Number(_clientId));
answer.add("return", ejson::Null());
JUS_INFO("Answer: " << answer.generateHumanString());
_interface->write(answer.generateMachineString());
return true;
});
}
template <class JUS_RETURN, class... JUS_TYPES>
std::string executeCallString(JUS_RETURN (*_func)(JUS_TYPES...), const std::vector<std::string>& _params) {
#if defined(__clang__)
// clang generate a basic warning:
// warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
int32_t idParam = 0;
return etk::to_string(_func((jus::convertStringTo<JUS_TYPES>(_params[idParam++]))...));
#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
return etk::to_string(_func(jus::convertStringTo<JUS_TYPES>(_params[idParam--])...));
#else
#error Must be implemented ...
#endif
return "";
}
template <class... JUS_TYPES>
std::string executeCallString(void (*_func)(JUS_TYPES...), const std::vector<std::string>& _params) {
ejson::Object out;
#if defined(__clang__)
// clang generate a basic warning:
// warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
int32_t idParam = 0;
_func((jus::convertStringTo<JUS_TYPES>(_params[idParam++]))...);
#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
_func(jus::convertStringTo<JUS_TYPES>(_params[idParam--])...);
#else
#error Must be implemented ...
#endif
return "";
}
template <class JUS_RETURN, class... JUS_TYPES>
class AbstractFunctionTypeDirect: public jus::AbstractFunction {
protected:
static const ParamType m_returnType;
static const ParamType m_paramType[sizeof...(JUS_TYPES)];
public:
using functionType = JUS_RETURN (*)(JUS_TYPES...);
functionType m_function;
AbstractFunctionTypeDirect(const std::string& _name, const std::string& _desc, functionType _fptr):
AbstractFunction(_name, _desc),
m_function(_fptr) {
}
std::string getPrototype() const override {
std::string ret;
ret += m_returnType.getName();
ret += " ";
ret += m_name;
ret += "(";
for (size_t iii=0; iii<sizeof...(JUS_TYPES); ++iii) {
if (iii != 0) {
ret += ", ";
}
ret += m_paramType[iii].getName();
}
ret += ");";
return ret;
}
std::string getPrototypeReturn() const override {
return m_returnType.getName();
}
std::vector<std::string> getPrototypeParam() const override {
std::vector<std::string> out;
for (size_t iii=0; iii<sizeof...(JUS_TYPES); ++iii) {
out.push_back(m_paramType[iii].getName());
}
return out;
}
void executeJson(const ememory::SharedPtr<jus::TcpString>& _interfaceClient,
uint64_t _transactionId,
uint64_t _clientId,
const ejson::Array& _params,
void* _class) override {
// check parameter number
if (_params.size() != sizeof...(JUS_TYPES)) {
ejson::Object answer;
answer.add("id", ejson::Number(_transactionId));
answer.add("client-id", ejson::Number(_clientId));
answer.add("error", ejson::String("WRONG-PARAMETER-NUMBER"));
std::string help = "request ";
help += etk::to_string(_params.size());
help += " parameters and need ";
help += etk::to_string(sizeof...(JUS_TYPES));
help += " parameters. prototype function:";
help += getPrototype();
answer.add("error-help", ejson::String(help));
JUS_INFO("Answer: " << answer.generateHumanString());
_interfaceClient->write(answer.generateMachineString());
return;
}
// check parameter compatibility
for (size_t iii=0; iii<sizeof...(JUS_TYPES); ++iii) {
if (checkCompatibility(m_paramType[iii], _params[iii]) == false) {
ejson::Object answer;
answer.add("id", ejson::Number(_transactionId));
answer.add("client-id", ejson::Number(_clientId));
answer.add("error", ejson::String("WRONG-PARAMETER-TYPE"));
answer.add("error-help", ejson::String("Parameter id " + etk::to_string(iii) + " not compatible with type: '" + m_paramType[iii].getName() + "'"));
JUS_INFO("Answer: " << answer.generateHumanString());
_interfaceClient->write(answer.generateMachineString());
return;
}
}
// execute cmd:
jus::executeCallJson(_interfaceClient, _transactionId, _clientId, m_function, _params);
}
std::string executeString(const std::vector<std::string>& _params, void* _class) override {
std::string out;
// check parameter number
if (_params.size() != sizeof...(JUS_TYPES)) {
JUS_ERROR("Wrong number of Parameters ...");
out += "error:WRONG-PARAMETER-NUMBER;";
out += "error-help:request ";
out += etk::to_string(_params.size());
out += " parameters and need ";
out += etk::to_string(sizeof...(JUS_TYPES));
out += " parameters. prototype function:";
out += getPrototype();
return out;
}
// check parameter compatibility
for (size_t iii=0; iii<sizeof...(JUS_TYPES); ++iii) {
if (checkCompatibility(m_paramType[iii], _params[iii]) == false) {
out += "error:WRONG-PARAMETER-TYPE;";
out += "error-help:Parameter id " + etk::to_string(iii) + " not compatible with type: '" + m_paramType[iii].getName() + "'";
return out;
}
}
// execute cmd:
out = jus::executeCallString(m_function, _params);
return out;
}
};
template <class JUS_RETURN, class... JUS_TYPES>
const ParamType AbstractFunctionTypeDirect<JUS_RETURN, JUS_TYPES...>::m_returnType = createType<JUS_RETURN>();
template <class JUS_RETURN, class... JUS_TYPES>
const ParamType AbstractFunctionTypeDirect<JUS_RETURN, JUS_TYPES...>::m_paramType[sizeof...(JUS_TYPES)] = {createType<JUS_TYPES>()...};
template <typename JUS_RETURN, typename... JUS_TYPES>
AbstractFunction* createAbstractFunctionDirect(const std::string& _name, const std::string& _desc, JUS_RETURN (*_fffp)(JUS_TYPES...)) {
return new AbstractFunctionTypeDirect<JUS_RETURN, JUS_TYPES...>(_name, _desc, _fffp);
}
}