src/openxc-utils.cpp

   1 /*
   2  * Copyright (C) 2015, 2016 "IoT.bzh"
   3  * Author "Romain Forlot" <romain.forlot@iot.bzh>
   4  * Author "Loic Collignon" <loic.collignon@iot.bzh>
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *       http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18
  19 #include "openxc-utils.hpp"
  20
  21 openxc_VehicleMessage build_VehicleMessage_with_SimpleMessage(openxc_DynamicField_Type type, const openxc_SimpleMessage& message)
  22 {
  23         struct timeb t_msec;
  24         long long int timestamp_msec;
  25
  26         openxc_VehicleMessage v;
  27
  28         if(!::ftime(&t_msec))
  29         {
  30                 timestamp_msec = ((long long int) t_msec.time) * 1000ll +
  31                                                         (long long int) t_msec.millitm;
  32
  33                 v.has_type = true;
  34                 v.type = openxc_VehicleMessage_Type::openxc_VehicleMessage_Type_SIMPLE;
  35                 v.has_simple_message = true;
  36                 v.simple_message =  message;
  37                 v.has_timestamp = true;
  38                 v.timestamp = timestamp_msec;
  39
  40                 return v;
  41         }
  42
  43         v.has_type = true,
  44         v.type = openxc_VehicleMessage_Type::openxc_VehicleMessage_Type_SIMPLE;
  45         v.has_simple_message = true;
  46         v.simple_message =  message;
  47
  48         return v;
  49 }
  50
  51 openxc_SimpleMessage build_SimpleMessage(const std::string& name, const openxc_DynamicField& value)
  52 {
  53         openxc_SimpleMessage s;
  54
  55         s.has_name = true;
  56         ::strncpy(s.name, name.c_str(), 100);
  57         s.has_value = true;
  58         s.value = value;
  59
  60         return s;
  61 }
  62
  63 openxc_DynamicField build_DynamicField(const std::string& value)
  64 {
  65         openxc_DynamicField d;
  66         d.has_type = true;
  67         d.type = openxc_DynamicField_Type_STRING;
  68
  69         d.has_string_value = true;
  70         ::strncpy(d.string_value, value.c_str(), 100);
  71
  72         return d;
  73 }
  74
  75 openxc_DynamicField build_DynamicField(double value)
  76 {
  77         openxc_DynamicField d;
  78         d.has_type = true;
  79         d.type = openxc_DynamicField_Type_NUM;
  80
  81         d.has_numeric_value = true;
  82         d.numeric_value = value;
  83
  84         return d;
  85 }
  86
  87 openxc_DynamicField build_DynamicField(bool value)
  88 {
  89         openxc_DynamicField d;
  90         d.has_type = true;
  91         d.type = openxc_DynamicField_Type_BOOL;
  92
  93         d.has_boolean_value = true;
  94         d.boolean_value = value;
  95
  96         return d;
  97 }
  98
  99 openxc_SimpleMessage get_simple_message(const openxc_VehicleMessage& v_msg)
 100 {
 101         if (v_msg.has_simple_message)
 102                 return v_msg.simple_message;
 103
 104         openxc_SimpleMessage s_msg = { false, "", false, build_DynamicField(false), false, build_DynamicField(false)};
 105         return s_msg;
 106 }
 107
 108 void jsonify_DynamicField(const openxc_DynamicField& field, json_object* value)
 109 {
 110         if(field.has_numeric_value)
 111                 json_object_object_add(value, "value", json_object_new_double(field.numeric_value));
 112         else if(field.has_boolean_value)
 113                 json_object_object_add(value, "value", json_object_new_boolean(field.boolean_value));
 114         else if(field.has_string_value)
 115                 json_object_object_add(value, "value", json_object_new_string(field.string_value));
 116 }
 117
 118 bool jsonify_simple(const openxc_SimpleMessage& s_msg, json_object* json)
 119 {
 120         if(s_msg.has_name)
 121         {
 122                 json = json_object_new_object();
 123                 json_object_object_add(json, "name", json_object_new_string(s_msg.name));
 124                 jsonify_DynamicField(s_msg.value, json);
 125                 return true;
 126         }
 127         json_object_object_add(json, "error", json_object_new_string("openxc_SimpleMessage doesn't have name'"));
 128         return false;
 129 }