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zeus/jus/AbstractFunctionTypeClass.h

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/** @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 <jus/debug.h>
#include <jus/AbstractFunction.h>
#include <jus/mineType.h>
#include <etk/os/FSNode.h>
namespace jus {
template <class JUS_CLASS_TYPE, class JUS_RETURN, class... JUS_TYPES>
void executeClassCall(const ememory::SharedPtr<jus::TcpString>& _interfaceClient,
uint64_t _transactionId,
uint64_t _clientId,
JUS_CLASS_TYPE* _pointer,
JUS_RETURN (JUS_CLASS_TYPE::*_func)(JUS_TYPES...),
jus::Buffer& _obj) {
std::vector<ActionAsyncClient> asyncAction;
#if defined(__clang__)
// clang generate a basic warning:
// warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
int32_t idParam = 0;
JUS_RETURN ret = (*_pointer.*_func)(_obj.getParameter<JUS_TYPES>(idParam++)...);
#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
JUS_RETURN ret = (*_pointer.*_func)(_obj.getParameter<JUS_TYPES>(idParam--)...);
#else
#error Must be implemented ...
JUS_RETURN ret;
return;
#endif
if (asyncAction.size() != 0) {
JUS_ERROR("Missing send async messages");
}
_interfaceClient->addAsync([=](TcpString* _interface) {
_interface->answerValue(_transactionId, ret, _clientId);
return true;
});
}
class SendFile {
private:
jus::FileServer m_data;
uint64_t m_transactionId;
uint64_t m_clientId;
uint32_t m_partId;
etk::FSNode m_node;
uint64_t m_size;
public:
SendFile(jus::FileServer _data,
uint64_t _transactionId,
uint64_t _clientId) :
m_data(_data),
m_transactionId(_transactionId),
m_clientId(_clientId),
m_partId(0),
m_node(_data.getFileName()),
m_size(0) {
}
~SendFile() {
//m_node.fileClose();
}
bool operator() (TcpString* _interface) {
jus::Buffer answer;
answer.setTransactionId(m_transactionId);
answer.setClientId(m_clientId);
answer.setPartId(m_partId);
answer.setPartFinish(false);
if (m_partId == 0) {
m_node.fileOpenRead();
std::string extention = std::string(m_data.getFileName().begin()+m_data.getFileName().size() -3, m_data.getFileName().end());
JUS_WARNING("send file: '" << m_data.getFileName() << "' with extention: '" << extention << "'");
m_size = m_node.fileSize();
jus::File tmpFile(jus::getMineType(extention), std::vector<uint8_t>(), m_size);
answer.addAnswer(tmpFile);
_interface->writeBinary(answer);
m_partId++;
return false;
}
int32_t tmpSize = 1024;
if (m_size < 1024) {
tmpSize = m_size;
}
uint8_t tmpData[1024];
m_node.fileRead(tmpData, 1, tmpSize);
answer.addData(tmpData, tmpSize);
m_size -= tmpSize;
if (m_size <= 0) {
answer.setPartFinish(true);
m_node.fileClose();
}
_interface->writeBinary(answer);;
m_partId++;
if (m_size <= 0) {
return true;
}
return false;
}
};
template <class JUS_CLASS_TYPE, class... JUS_TYPES>
void executeClassCall(const ememory::SharedPtr<jus::TcpString>& _interfaceClient,
uint64_t _transactionId,
uint64_t _clientId,
JUS_CLASS_TYPE* _pointer,
jus::FileServer (JUS_CLASS_TYPE::*_func)(JUS_TYPES...),
jus::Buffer& _obj) {
#if defined(__clang__)
// clang generate a basic warning:
// warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
int32_t idParam = 0;
jus::FileServer tmpElem = (*_pointer.*_func)(_obj.getParameter<JUS_TYPES>(idParam++)...);
#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
jus::FileServer tmpElem = (*_pointer.*_func)(_obj.getParameter<JUS_TYPES>(idParam--)...);
#else
#error Must be implemented ...
jus::FileServer tmpElem;
return;
#endif
_interfaceClient->addAsync(SendFile(tmpElem, _transactionId, _clientId));
}
template <class JUS_CLASS_TYPE, class... JUS_TYPES>
void executeClassCall(const ememory::SharedPtr<jus::TcpString>& _interfaceClient,
uint64_t _transactionId,
uint64_t _clientId,
JUS_CLASS_TYPE* _pointer,
void (JUS_CLASS_TYPE::*_func)(JUS_TYPES...),
jus::Buffer& _obj) {
#if defined(__clang__)
// clang generate a basic warning:
// warning: multiple unsequenced modifications to 'idParam' [-Wunsequenced]
int32_t idParam = 0;
(*_pointer.*_func)(_obj.getParameter<JUS_TYPES>(idParam++)...);
#elif defined(__GNUC__) || defined(__GNUG__) || defined(_MSC_VER)
int32_t idParam = int32_t(sizeof...(JUS_TYPES))-1;
(*_pointer.*_func)(_obj.getParameter<JUS_TYPES>(idParam--)...);
#else
#error Must be implemented ...
return;
#endif
_interfaceClient->addAsync([=](TcpString* _interface) {
_interface->answerVoid(_transactionId, _clientId);
return true;
});
}
template <class JUS_RETURN, class JUS_CLASS_TYPE, class... JUS_TYPES>
class AbstractFunctionTypeClass: public jus::AbstractFunction {
protected:
static const ParamType m_returnType;
static const ParamType m_paramType[sizeof...(JUS_TYPES)];
public:
using functionType = JUS_RETURN (JUS_CLASS_TYPE::*)(JUS_TYPES...);
functionType m_function;
AbstractFunctionTypeClass(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 execute(const ememory::SharedPtr<jus::TcpString>& _interfaceClient,
uint64_t _transactionId,
uint64_t _clientId,
jus::Buffer& _obj,
void* _class) override {
JUS_CLASS_TYPE* tmpClass = nullptr;
if (_class != nullptr) {
tmpClass = (JUS_CLASS_TYPE*)_class;
}
// check parameter number
if (_obj.getNumberParameter() != sizeof...(JUS_TYPES)) {
JUS_ERROR("Wrong number of Parameters ...");
std::string help = "request ";
help += etk::to_string(_obj.getNumberParameter());
help += " parameters and need ";
help += etk::to_string(sizeof...(JUS_TYPES));
help += " parameters. prototype function:";
help += getPrototype();
_interfaceClient->answerError(_transactionId,
"WRONG-PARAMETER-NUMBER",
help,
_clientId);
return;
}
// check parameter compatibility
for (size_t iii=0; iii<sizeof...(JUS_TYPES); ++iii) {
if (checkCompatibility(m_paramType[iii], _obj.getParameterType(iii)) == false) {
_interfaceClient->answerError(_transactionId,
"WRONG-PARAMETER-TYPE",
std::string("Parameter id ") + etk::to_string(iii) + " not compatible with type: '" + m_paramType[iii].getName() + "'",
_clientId);
return;
}
}
// execute cmd:
jus::executeClassCall(_interfaceClient, _transactionId, _clientId, tmpClass, m_function, _obj);
}
};
template <class JUS_RETURN, class JUS_CLASS_TYPE, class... JUS_TYPES>
const ParamType AbstractFunctionTypeClass<JUS_RETURN, JUS_CLASS_TYPE, JUS_TYPES...>::m_returnType = createType<JUS_RETURN>();
template <class JUS_RETURN, class JUS_CLASS_TYPE, class... JUS_TYPES>
const ParamType AbstractFunctionTypeClass<JUS_RETURN, JUS_CLASS_TYPE, JUS_TYPES...>::m_paramType[sizeof...(JUS_TYPES)] = {createType<JUS_TYPES>()...};
template <typename JUS_RETURN, class JUS_CLASS_TYPE, typename... JUS_TYPES>
AbstractFunction* createAbstractFunctionClass(const std::string& _name, const std::string& _desc, JUS_RETURN (JUS_CLASS_TYPE::*_fffp)(JUS_TYPES...)) {
return new AbstractFunctionTypeClass<JUS_RETURN, JUS_CLASS_TYPE, JUS_TYPES...>(_name, _desc, _fffp);
}
}
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