#include "PredictorWrapper.h"
#include <string>
+#include "Logger.h"
#include <iostream>
+#include <thread>
namespace py = boost::python;
PredictorWrapperWPtr PredictorWrapper::instance;
-const static std::string PREDICTOR_PY_DIR = "./python";
+const static std::string TAG = "PredictorWrapper";
static std::string parse_python_exception();
+template <class T>
+boost::python::list toPythonList(const std::vector<T>& v) {
+ typename std::vector<T>::iterator iter;
+ boost::python::list list;
+ for(const auto& vv : v){
+ list.append(vv);
+ }
+ return list;
+}
-PredictorWrapperPtr PredictorWrapper::create(const std::string& fname)
+PredictorWrapperPtr PredictorWrapper::create(const std::string& python_dir, const std::string& model_path)
{
- //if (instance == nullptr){
if (instance.lock()){
- //instance = new PredictorWrapper(fname);
return PredictorWrapperPtr();
}
- PredictorWrapperPtr ins (new PredictorWrapper(fname));
+ PredictorWrapperPtr ins (new PredictorWrapper(python_dir, model_path));
instance = ins;
return ins;
}
-PredictorWrapper::PredictorWrapper(const std::string& fname)
+void PredictorWrapper::dump()
+{
+ LOG_DEBUG(TAG, "dump");
+ std::string ss = "";
+ try{
+ py::object ret = this->dump_func();
+ ss = py::extract<std::string>(ret);
+ } catch (boost::python::error_already_set const &){
+ std::string perror_str = parse_python_exception();
+ LOG_ERROR(TAG, "Error in Python: " + perror_str)
+ }
+ LOG_DEBUG(TAG, ss);
+}
+
+double PredictorWrapper::predict(int index, const std::vector<double>& ff)
+{
+ LOG_DEBUG(TAG, "predict");
+ py::object ret;
+ try{
+ ret = this->predict_func(index, toPythonList(ff));
+ } catch (boost::python::error_already_set const &){
+ std::string perror_str = parse_python_exception();
+ LOG_ERROR(TAG, "Error in Python: " + perror_str)
+ }
+ double rr = py::extract<double>(ret);
+ LOG_DEBUG(TAG, "return: " + std::to_string(rr));
+ return rr;
+}
+
+PredictorWrapper::PredictorWrapper(const std::string& py_dir, const std::string& model_path)
{
Py_Initialize();
try{
py::object main_module = py::import("__main__");
py::object main_namespace = main_module.attr("__dict__");
py::exec("import sys", main_namespace);
- std::string cmd = "sys.path.insert(0, '" + PREDICTOR_PY_DIR + "')";
+ std::string cmd = "sys.path.insert(0, '" + py_dir + "')";
py::exec(cmd.c_str(), main_namespace);
- //py::exec("sys.path.insert(0, '/home/debian/project/tracker/python')", main_namespace);
- //py::exec("sys.path.insert(0, './python')", main_namespace);
+ py::exec("import signal", main_namespace);
+ py::exec("signal.signal(signal.SIGINT, signal.SIG_DFL)", main_namespace);
py::object predictor_mod = py::import("predictor");
py::object predictor_init = predictor_mod.attr("init");
dump_func = predictor_mod.attr("dump");
predict_func = predictor_mod.attr("predict");
-
- predictor_init(fname.c_str());
- //predictor_dump();
- //py::exec("import predictor", main_namespace);
+ predictor_init(model_path.c_str());
} catch (boost::python::error_already_set const &){
std::string perror_str = parse_python_exception();
- std::cout << "Error in Python: " << perror_str << std::endl;
+ LOG_ERROR(TAG, "Error in Python: " + perror_str)
}
}