string AlprImpl::toJson( const AlprResults results )
{
cJSON *root, *jsonResults;
root = cJSON_CreateObject();
cJSON_AddNumberToObject(root,"version", 2 );
cJSON_AddStringToObject(root,"data_type", "alpr_results" );
cJSON_AddNumberToObject(root,"epoch_time", results.epoch_time );
cJSON_AddNumberToObject(root,"img_width", results.img_width );
cJSON_AddNumberToObject(root,"img_height", results.img_height );
cJSON_AddNumberToObject(root,"processing_time_ms", results.total_processing_time_ms );
// Add the regions of interest to the JSON
cJSON *rois;
cJSON_AddItemToObject(root, "regions_of_interest", rois=cJSON_CreateArray());
for (unsigned int i=0;i<results.regionsOfInterest.size();i++)
{
cJSON *roi_object;
roi_object = cJSON_CreateObject();
cJSON_AddNumberToObject(roi_object, "x", results.regionsOfInterest[i].x);
cJSON_AddNumberToObject(roi_object, "y", results.regionsOfInterest[i].y);
cJSON_AddNumberToObject(roi_object, "width", results.regionsOfInterest[i].width);
cJSON_AddNumberToObject(roi_object, "height", results.regionsOfInterest[i].height);
cJSON_AddItemToArray(rois, roi_object);
}
cJSON_AddItemToObject(root, "results", jsonResults=cJSON_CreateArray());
for (unsigned int i = 0; i < results.plates.size(); i++)
{
cJSON *resultObj = createJsonObj( &results.plates[i] );
cJSON_AddItemToArray(jsonResults, resultObj);
}
// Print the JSON object to a string and return
char *out;
out=cJSON_PrintUnformatted(root);
cJSON_Delete(root);
string response(out);
free(out);
return response;
}
string AlprImpl::toJson(const vector< AlprResult > results)
{
cJSON *root = cJSON_CreateArray();
for (int i = 0; i < results.size(); i++)
{
cJSON *resultObj = createJsonObj( &results[i] );
cJSON_AddItemToArray(root, resultObj);
}
// Print the JSON object to a string and return
char *out;
out=cJSON_PrintUnformatted(root);
cJSON_Delete(root);
string response(out);
free(out);
return response;
}