Add test for Predictor

[trackerpp.git] / src / PredictorWrapper.cpp

diff --git a/src/PredictorWrapper.cpp b/src/PredictorWrapper.cpp
index 8c5965f..44e5fed 100644 (file)
--- a/src/PredictorWrapper.cpp
+++ b/src/PredictorWrapper.cpp
@@ -1,6 +1,8 @@
 #include "PredictorWrapper.h"
 #include <string>
+#include "Logger.h"
 #include <iostream>
+#include <thread>
 
 namespace py = boost::python;
 
@@ -10,45 +12,80 @@ using namespace suanzi;
 
 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");
+    cout << "dump" << endl;
+    std::string ss = "";
+    try{
+        cout << "==== before" << endl;
+        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)
     }
 }