Replace all enum types with masks

This commit allows to change all enum types by masks.
Now to implement new protocol you don't need to add
more attribute in class. All can be contained in
the flags field.

Bug-AGL : SPEC-2779

Change-Id: I814d0052139be5d5efefc9ff1b4b558f46b85e90
Signed-off-by: Arthur Guyader <arthur.guyader@iot.bzh>

2 files changed, 1124 insertions, 156 deletions

diff --git a/examples/tests/application-generated.cpp b/examples/tests/application-generated.cpp
index 6abb4851..06ee30e4 100644
--- a/examples/tests/application-generated.cpp
+++ b/examples/tests/application-generated.cpp
@@ -7,7 +7,8 @@ application_t::application_t()
 	, message_set_{
 		{std::make_shared<message_set_t>(message_set_t{0,"AGL Virtual Car",
 			{ // beginning message_definition_ vector
-				{std::make_shared<message_definition_t>(message_definition_t{"ls",0x30,"",0,false,message_format_t::EXTENDED,frequency_clock_t(5.00000f),true,					{ // beginning signals vector
+				{std::make_shared<message_definition_t>(message_definition_t{"ls",0x30,"",8,4,frequency_clock_t(5.00000f),true,
+					{ // beginning signals vector
 						{std::make_shared<signal_t> (signal_t{
 							"hvac.fan.speed",// generic_name
 							32,// bit_position
@@ -21,14 +22,14 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"hvac.temperature.left",// generic_name
@@ -47,10 +48,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"hvac.temperature.right",// generic_name
@@ -69,10 +70,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"hvac.temperature.average",// generic_name
@@ -91,14 +92,15 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})}
 					} // end signals vector
 				})} // end message_definition entry
-,				{std::make_shared<message_definition_t>(message_definition_t{"hs",0x3D9,"",0,true,message_format_t::STANDARD,frequency_clock_t(5.00000f),true,					{ // beginning signals vector
+,				{std::make_shared<message_definition_t>(message_definition_t{"hs",0x3D9,"",8,2050,frequency_clock_t(5.00000f),true,
+					{ // beginning signals vector
 						{std::make_shared<signal_t> (signal_t{
 							"engine.speed",// generic_name
 							16,// bit_position
@@ -112,14 +114,14 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"fuel.level.low",// generic_name
@@ -134,14 +136,14 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							decoder_t::decode_boolean,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"fuel.level",// generic_name
@@ -156,18 +158,19 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})}
 					} // end signals vector
 				})} // end message_definition entry
-,				{std::make_shared<message_definition_t>(message_definition_t{"hs",0x3E9,"",0,false,message_format_t::STANDARD,frequency_clock_t(5.00000f),true,					{ // beginning signals vector
+,				{std::make_shared<message_definition_t>(message_definition_t{"hs",0x3E9,"",8,2,frequency_clock_t(5.00000f),true,
+					{ // beginning signals vector
 						{std::make_shared<signal_t> (signal_t{
 							"vehicle.average.speed",// generic_name
 							0,// bit_position
@@ -185,14 +188,15 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})}
 					} // end signals vector
 				})} // end message_definition entry
-,				{std::make_shared<message_definition_t>(message_definition_t{"hs",0x4D1,"",0,false,message_format_t::STANDARD,frequency_clock_t(5.00000f),true,					{ // beginning signals vector
+,				{std::make_shared<message_definition_t>(message_definition_t{"hs",0x4D1,"",8,2,frequency_clock_t(5.00000f),true,
+					{ // beginning signals vector
 						{std::make_shared<signal_t> (signal_t{
 							"engine.oil.temp",// generic_name
 							16,// bit_position
@@ -206,14 +210,14 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"engine.oil.temp.high",// generic_name
@@ -228,18 +232,19 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							decoder_t::decode_boolean,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})}
 					} // end signals vector
 				})} // end message_definition entry
-,				{std::make_shared<message_definition_t>(message_definition_t{"hs",0x620,"",0,false,message_format_t::STANDARD,frequency_clock_t(5.00000f),true,					{ // beginning signals vector
+,				{std::make_shared<message_definition_t>(message_definition_t{"hs",0x620,"",8,2,frequency_clock_t(5.00000f),true,
+					{ // beginning signals vector
 						{std::make_shared<signal_t> (signal_t{
 							"doors.boot.open",// generic_name
 							47,// bit_position
@@ -253,14 +258,14 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							decoder_t::decode_boolean,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"doors.front_left.open",// generic_name
@@ -275,14 +280,14 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							decoder_t::decode_boolean,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"doors.front_right.open",// generic_name
@@ -297,14 +302,14 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							decoder_t::decode_boolean,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"doors.rear_left.open",// generic_name
@@ -319,14 +324,14 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							decoder_t::decode_boolean,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"doors.rear_right.open",// generic_name
@@ -341,18 +346,19 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							decoder_t::decode_boolean,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})}
 					} // end signals vector
 				})} // end message_definition entry
-,				{std::make_shared<message_definition_t>(message_definition_t{"hs",0x799,"",0,false,message_format_t::STANDARD,frequency_clock_t(5.00000f),true,					{ // beginning signals vector
+,				{std::make_shared<message_definition_t>(message_definition_t{"hs",0x799,"",8,2,frequency_clock_t(5.00000f),true,
+					{ // beginning signals vector
 						{std::make_shared<signal_t> (signal_t{
 							"windows.front_left.open",// generic_name
 							43,// bit_position
@@ -366,14 +372,14 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							decoder_t::decode_boolean,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"windows.front_right.open",// generic_name
@@ -388,14 +394,14 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							decoder_t::decode_boolean,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"windows.rear_left.open",// generic_name
@@ -410,14 +416,14 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							decoder_t::decode_boolean,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"windows.rear_right.open",// generic_name
@@ -432,18 +438,19 @@ application_t::application_t()
 							false,// force_send_changed
 							{
 							},// states
-							false,// writable
+							true,// writable
 							decoder_t::decode_boolean,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})}
 					} // end signals vector
 				})} // end message_definition entry
-,				{std::make_shared<message_definition_t>(message_definition_t{"j1939",61442,"ETC1",8,false,message_format_t::J1939,frequency_clock_t(5.00000f),true,					{ // beginning signals vector
+,				{std::make_shared<message_definition_t>(message_definition_t{"j1939",61442,"ETC1",8,18,frequency_clock_t(5.00000f),true,
+					{ // beginning signals vector
 						{std::make_shared<signal_t> (signal_t{
 							"Eng.Momentary.Overspeed.Enable",// generic_name
 							32,// bit_position
@@ -462,13 +469,13 @@ application_t::application_t()
 								{3,"TakeNoAction"}
 							},// states
 							true,// writable
-							nullptr,// decoder
+							decoder_t::decode_state,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Momentary.Eng.Max.Power.Enable",// generic_name
@@ -488,13 +495,13 @@ application_t::application_t()
 								{0,"notRqingMaxPowerAvailable"}
 							},// states
 							true,// writable
-							nullptr,// decoder
+							decoder_t::decode_state,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Percent.Clutch.Slip",// generic_name
@@ -513,10 +520,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"%",// unit
+							"%"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Progressive.Shift.Disable",// generic_name
@@ -536,13 +543,13 @@ application_t::application_t()
 								{3,"TakeNoAction"}
 							},// states
 							true,// writable
-							nullptr,// decoder
+							decoder_t::decode_state,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Src.Addrss.Of.Ctrllng.Dvc.Fr.Trns.Cntrl",// generic_name
@@ -561,10 +568,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Trans.Driveline.Engaged",// generic_name
@@ -584,13 +591,13 @@ application_t::application_t()
 								{3,"NotAvailable"}
 							},// states
 							true,// writable
-							nullptr,// decoder
+							decoder_t::decode_state,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Trans.Input.Shaft.Speed",// generic_name
@@ -609,10 +616,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"rpm",// unit
+							"rpm"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Trans.Output.Shaft.Speed",// generic_name
@@ -631,10 +638,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"rpm",// unit
+							"rpm"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Trans.Shift.In.Process",// generic_name
@@ -654,13 +661,13 @@ application_t::application_t()
 								{0,"ShiftIsNotInProcess"}
 							},// states
 							true,// writable
-							nullptr,// decoder
+							decoder_t::decode_state,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Trns.Trq.Cnvrtr.Lckp.Trnstn.In.Prcess",// generic_name
@@ -680,13 +687,13 @@ application_t::application_t()
 								{0,"TransitionIsNotInProcess"}
 							},// states
 							true,// writable
-							nullptr,// decoder
+							decoder_t::decode_state,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Trns.Trque.Converter.Lockup.Engaged",// generic_name
@@ -706,17 +713,18 @@ application_t::application_t()
 								{1,"TorqueConverterLockupEngaged"}
 							},// states
 							true,// writable
-							nullptr,// decoder
+							decoder_t::decode_state,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})}
 					} // end signals vector
 				})} // end message_definition entry
-,				{std::make_shared<message_definition_t>(message_definition_t{"j1939",61444,"EEC1",8,false,message_format_t::J1939,frequency_clock_t(5.00000f),true,					{ // beginning signals vector
+,				{std::make_shared<message_definition_t>(message_definition_t{"j1939",61444,"EEC1",8,18,frequency_clock_t(5.00000f),true,
+					{ // beginning signals vector
 						{std::make_shared<signal_t> (signal_t{
 							"Actl.Eng.Prcnt.Trque.High.Resolution",// generic_name
 							4,// bit_position
@@ -735,13 +743,13 @@ application_t::application_t()
 								{8,"1111NotAvailable"}
 							},// states
 							false,// writable
-							nullptr,// decoder
+							decoder_t::decode_state,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"%",// unit
+							"%"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Actual.Eng.Percent.Torque",// generic_name
@@ -760,10 +768,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"%",// unit
+							"%"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Drivers.Demand.Eng.Percent.Torque",// generic_name
@@ -782,10 +790,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"%",// unit
+							"%"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Eng.Demand.Percent.Torque",// generic_name
@@ -804,10 +812,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"%",// unit
+							"%"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Eng.Speed",// generic_name
@@ -826,10 +834,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"rpm",// unit
+							"rpm"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Eng.Starter.Mode",// generic_name
@@ -858,13 +866,13 @@ application_t::application_t()
 								{8,"strtrInhbtdDueToStarterOvertemp"}
 							},// states
 							false,// writable
-							nullptr,// decoder
+							decoder_t::decode_state,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Eng.Torque.Mode",// generic_name
@@ -893,13 +901,13 @@ application_t::application_t()
 								{6,"Transmission control"}
 							},// states
 							false,// writable
-							nullptr,// decoder
+							decoder_t::decode_state,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Src.AddrssOf.Ctrllng.Dvc.Fr.Eng.Cntrl",// generic_name
@@ -918,14 +926,15 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})}
 					} // end signals vector
 				})} // end message_definition entry
-,				{std::make_shared<message_definition_t>(message_definition_t{"j1939",61449,"VDC2",8,false,message_format_t::J1939,frequency_clock_t(5.00000f),true,					{ // beginning signals vector
+,				{std::make_shared<message_definition_t>(message_definition_t{"j1939",61449,"VDC2",8,18,frequency_clock_t(5.00000f),true,
+					{ // beginning signals vector
 						{std::make_shared<signal_t> (signal_t{
 							"Lateral.Acceleration",// generic_name
 							40,// bit_position
@@ -943,10 +952,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"m/s/s",// unit
+							"m/s/s"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Longitudinal.Acceleration",// generic_name
@@ -965,10 +974,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"m/s/s",// unit
+							"m/s/s"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Steer.Wheel.Angle",// generic_name
@@ -987,10 +996,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"rad",// unit
+							"rad"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Steer.Wheel.Angle.Sensor.Type",// generic_name
@@ -1010,13 +1019,13 @@ application_t::application_t()
 								{2,"Reserved"}
 							},// states
 							false,// writable
-							nullptr,// decoder
+							decoder_t::decode_state,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"",// unit
+							""// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Steer.Wheel.Turn.Counter",// generic_name
@@ -1035,10 +1044,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"turns",// unit
+							"turns"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Yaw.Rate",// generic_name
@@ -1057,14 +1066,15 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"rad/s",// unit
+							"rad/s"// unit
 						})}
 					} // end signals vector
 				})} // end message_definition entry
-,				{std::make_shared<message_definition_t>(message_definition_t{"j1939",65215,"EBC2",8,false,message_format_t::J1939,frequency_clock_t(5.00000f),true,					{ // beginning signals vector
+,				{std::make_shared<message_definition_t>(message_definition_t{"j1939",65215,"EBC2",8,18,frequency_clock_t(5.00000f),true,
+					{ // beginning signals vector
 						{std::make_shared<signal_t> (signal_t{
 							"Front.Axle.Speed",// generic_name
 							0,// bit_position
@@ -1082,10 +1092,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"km/h",// unit
+							"km/h"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Relative.Speed.Front.Axle.Left.Wheel",// generic_name
@@ -1104,10 +1114,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"km/h",// unit
+							"km/h"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Relative.Speed.Rear.Axle1.Left.Wheel",// generic_name
@@ -1126,10 +1136,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"km/h",// unit
+							"km/h"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Relative.Speed.Rear.Axle2.Left.Wheel",// generic_name
@@ -1148,10 +1158,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"km/h",// unit
+							"km/h"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Rlative.Speed.Front.Axle.Right.Wheel",// generic_name
@@ -1170,10 +1180,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"km/h",// unit
+							"km/h"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Rlative.Speed.Rear.Axle1.Right.Wheel",// generic_name
@@ -1192,10 +1202,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"km/h",// unit
+							"km/h"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Rlative.Speed.Rear.Axle2.Right.Wheel",// generic_name
@@ -1214,14 +1224,15 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"km/h",// unit
+							"km/h"// unit
 						})}
 					} // end signals vector
 				})} // end message_definition entry
-,				{std::make_shared<message_definition_t>(message_definition_t{"j1939",65253,"HOURS",8,false,message_format_t::J1939,frequency_clock_t(5.00000f),true,					{ // beginning signals vector
+,				{std::make_shared<message_definition_t>(message_definition_t{"j1939",65253,"HOURS",8,18,frequency_clock_t(5.00000f),true,
+					{ // beginning signals vector
 						{std::make_shared<signal_t> (signal_t{
 							"Eng.Total.Hours.Of.Operation",// generic_name
 							0,// bit_position
@@ -1239,10 +1250,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"hr",// unit
+							"hr"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Eng.Total.Revolutions",// generic_name
@@ -1261,14 +1272,15 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"r",// unit
+							"r"// unit
 						})}
 					} // end signals vector
 				})} // end message_definition entry
-,				{std::make_shared<message_definition_t>(message_definition_t{"j1939",65262,"ET1",8,false,message_format_t::J1939,frequency_clock_t(5.00000f),true,					{ // beginning signals vector
+,				{std::make_shared<message_definition_t>(message_definition_t{"j1939",65262,"ET1",8,18,frequency_clock_t(5.00000f),true,
+					{ // beginning signals vector
 						{std::make_shared<signal_t> (signal_t{
 							"Eng.Coolant.Temp",// generic_name
 							0,// bit_position
@@ -1286,10 +1298,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"deg C",// unit
+							"deg C"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Eng.Fuel.Temp1",// generic_name
@@ -1308,10 +1320,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"deg C",// unit
+							"deg C"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Eng.Intercooler.Temp",// generic_name
@@ -1330,10 +1342,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"deg C",// unit
+							"deg C"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Eng.Intercooler.Thermostat.Opening",// generic_name
@@ -1352,10 +1364,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"%",// unit
+							"%"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Eng.Oil.Temp1",// generic_name
@@ -1374,10 +1386,10 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"deg C",// unit
+							"deg C"// unit
 						})},
 						{std::make_shared<signal_t> (signal_t{
 							"Eng.Turbo.Oil.Temp",// generic_name
@@ -1396,13 +1408,14 @@ application_t::application_t()
 							nullptr,// decoder
 							nullptr,// encoder
 							false,// received
-							std::make_pair<bool, int>(false,0),// multiplex
+							std::make_pair<bool, int>(false, 0),// multiplex
 							0,// is_big_endian
 							0,// is_signed
-							"deg C",// unit
+							"deg C"// unit
 						})}
 					} // end signals vector
 				})} // end message_definition entry
+
 		}, // end message_definition vector
 			{ // beginning diagnostic_messages_ vector
 				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
diff --git a/examples/tests/signal.json b/examples/tests/signal.json
new file mode 100644
index 00000000..1478caf8
--- /dev/null
+++ b/examples/tests/signal.json
@@ -0,0 +1,955 @@
+{   "name": "AGL Virtual Car",
+	"extra_sources": [],
+	"initializers": [],
+	"loopers": [],
+	"buses": {},
+	"commands": [],
+	"messages": {
+		"0x620": {
+			"bus": "hs",
+			"is_fd" : false,
+			"is_extended": false,
+			"is_j1939" : false,
+			"length" : 8,
+			"signals": {
+				"doors.driver.open": {
+					"generic_name": "doors.front_left.open",
+					"bit_position": 43,
+					"bit_size": 1,
+					"factor": 1.0,
+					"offset": 0,
+					"writable": true,
+					"decoder": "decoder_t::decode_boolean"},
+				"doors.passenger.open": {
+					"generic_name": "doors.front_right.open",
+					"bit_position": 44,
+					"bit_size": 1,
+					"factor": 1.0,
+					"offset": 0,
+					"writable": true,
+					"decoder": "decoder_t::decode_boolean"},
+				"doors.rearleft.open": {
+					"generic_name": "doors.rear_left.open",
+					"bit_position": 46,
+					"bit_size": 1,
+					"factor": 1.0,
+					"offset": 0,
+					"writable": true,
+					"decoder": "decoder_t::decode_boolean"},
+				"doors.rearright.open": {
+					"generic_name": "doors.rear_right.open",
+					"bit_position": 45,
+					"bit_size": 4,
+					"factor": 1.0,
+					"offset": 0,
+					"writable": true,
+					"decoder": "decoder_t::decode_boolean"},
+				"doors.coffer.open": {
+					"generic_name": "doors.boot.open",
+					"bit_position": 47,
+					"bit_size": 1,
+					"factor": 1.0,
+					"offset": 0,
+					"writable": true,
+					"decoder": "decoder_t::decode_boolean"}
+		}
+	},
+		"0x799": {
+			"bus": "hs",
+			"is_fd" : false,
+			"is_extended": false,
+			"is_j1939" : false,
+			"length" : 8,
+			"signals": {
+				"windows.driver.open": {
+					"generic_name": "windows.front_left.open",
+					"bit_position": 43,
+					"bit_size": 1,
+					"factor": 1.0,
+					"offset": 0,
+					"writable": true,
+					"decoder": "decoder_t::decode_boolean"},
+				"windows.passenger.open": {
+					"generic_name": "windows.front_right.open",
+					"bit_position": 44,
+					"bit_size": 1,
+					"factor": 1.0,
+					"offset": 0,
+					"writable": true,
+					"decoder": "decoder_t::decode_boolean"},
+				"windows.rearleft.open": {
+					"generic_name": "windows.rear_left.open",
+					"bit_position": 46,
+					"bit_size": 1,
+					"factor": 1.0,
+					"offset": 0,
+					"writable": true,
+					"decoder": "decoder_t::decode_boolean"},
+				"windows.rearright.open": {
+					"generic_name": "windows.rear_right.open",
+					"bit_position": 45,
+					"bit_size": 4,
+					"factor": 1.0,
+					"offset": 0,
+					"writable": true,
+					"decoder": "decoder_t::decode_boolean"}
+		}
+	},
+	"0x3D9": {
+	"bus": "hs",
+	"is_fd" : true,
+	"is_extended": false,
+	"is_j1939" : false,
+	"length" : 8,
+	"signals": {
+		"PT_FuelLevelPct": {
+			"generic_name": "fuel.level",
+			"bit_position": 8,
+			"bit_size": 8,
+			"factor": 0.392157,
+			"offset": 0,
+			"writable": true
+		},
+		"PT_EngineSpeed": {
+			"generic_name": "engine.speed",
+			"bit_position": 16,
+			"bit_size": 16,
+			"factor": 0.25,
+			"offset": 0,
+			"writable": true
+		},
+		"PT_FuelLevelLow": {
+			"generic_name": "fuel.level.low",
+			"bit_position": 55,
+			"bit_size": 1,
+			"factor": 1,
+			"offset": 0,
+			"writable": true,
+			"decoder": "decoder_t::decode_boolean"
+		}
+	}
+	},
+	"0x4D1": {
+	"bus": "hs",
+	"is_fd" : false,
+	"is_extended": false,
+	"is_j1939" : false,
+	"length" : 8,
+	"signals": {
+		"PT_EngineOilTempHigh": {
+			"generic_name": "engine.oil.temp.high",
+			"bit_position": 7,
+			"bit_size": 1,
+			"factor": 1,
+			"offset": 0,
+			"writable": true,
+			"decoder": "decoder_t::decode_boolean"
+		},
+		"PT_EngineOilTemp": {
+			"generic_name": "engine.oil.temp",
+			"bit_position": 16,
+			"bit_size": 8,
+			"factor": 1,
+			"offset": 0,
+			"writable": true
+		}
+	}
+	},
+	"0x3E9": {
+	"bus": "hs",
+	"is_fd" : false,
+	"is_extended": false,
+	"is_j1939" : false,
+	"length" : 8,
+	"signals": {
+		"PT_VehicleAvgSpeed": {
+			"generic_name": "vehicle.average.speed",
+			"bit_position": 0,
+			"bit_size": 15,
+			"factor": 0.015625,
+			"offset": 0,
+			"writable": false
+		}
+	}
+	},
+	"0x30": {
+	"bus": "ls",
+	"is_fd" : false,
+	"is_extended": true,
+	"is_j1939" : false,
+	"length" : 8,
+	"signals": {
+		"LeftTemperature": {
+			"generic_name": "hvac.temperature.left",
+			"bit_position": 0,
+			"bit_size": 8,
+			"factor": 1,
+			"offset": 0,
+			"writable": true
+		},
+		"RightTemperature": {
+			"generic_name": "hvac.temperature.right",
+			"bit_position": 8,
+			"bit_size": 8,
+			"factor": 1,
+			"offset": 0,
+			"writable": true
+		},
+		"Temperature": {
+			"generic_name": "hvac.temperature.average",
+			"bit_position": 16,
+			"bit_size": 8,
+			"factor": 1,
+			"offset": 0,
+			"writable": true
+		},
+		"FanSpeed": {
+			"generic_name": "hvac.fan.speed",
+			"bit_position": 32,
+			"bit_size": 8,
+			"factor": 23.529411765,
+			"offset": 0,
+			"writable": true
+		}
+	}
+    },
+    "61442": {
+        "comment": "Electronic Transmission Controller 1",
+        "length": 8,
+        "name": "ETC1",
+        "bus" : "j1939",
+        "is_fd" : false,
+        "is_extended": false,
+        "is_j1939" : true,
+        "signals" : {
+            "Trns.Trque.Converter.Lockup.Engaged" : {
+                "generic_name": "Trns.Trque.Converter.Lockup.Engaged",
+                "bit_position": 2,
+                "bit_size": 2,
+                "factor": 1,
+                "offset": 0,
+                "comment": "State signal which indicates whether the torque converter lockup is engaged.",
+                "is_big_endian": false,
+                "is_signed": false,
+                "writable" : true,
+                "states": {
+                    "TorqueConverterLockupDisengaged": [0],
+                    "TorqueConverterLockupEngaged": [1],
+                    "Error": [2],
+                    "NotAvailable": [3]
+                }
+            },
+            "Trns.Trq.Cnvrtr.Lckp.Trnstn.In.Prcess" : {
+                "generic_name": "Trns.Trq.Cnvrtr.Lckp.Trnstn.In.Prcess",
+                "bit_position": 6,
+                "bit_size": 2,
+                "factor": 1,
+                "offset": 0,
+                "comment": "State signal indicating whether or not the transmission torque converter lock up clutch is transitioning between being",
+                "is_big_endian": false,
+                "is_signed": false,
+                "writable" : true,
+                "states": {
+                    "TransitionIsNotInProcess": [0],
+                    "TransitionIsInProcess": [1],
+                    "Error": [2],
+                    "NotAvailable": [3]
+                }
+            },
+            "Src.Addrss.Of.Ctrllng.Dvc.Fr.Trns.Cntrl" : {
+                "generic_name": "Src.Addrss.Of.Ctrllng.Dvc.Fr.Trns.Cntrl",
+                "bit_position": 56,
+                "bit_size": 8,
+                "factor": 1,
+                "offset": 0,
+                "comment": "The source address of the SAE J1939 device currently controlling the transmission.",
+                "is_big_endian": false,
+                "is_signed": false,
+                "writable" : true
+            },
+            "Momentary.Eng.Max.Power.Enable" : {
+                "generic_name": "Momentary.Eng.Max.Power.Enable",
+                "bit_position": 36,
+                "bit_size": 2,
+                "factor": 1,
+                "offset": 0,
+                "comment": "Momentarily Requesting highest torque map from the engine control",
+                "is_big_endian": false,
+                "is_signed": false,
+                "writable" : true,
+                "states": {
+                    "notRqingMaxPowerAvailable": [0],
+                    "mmntarilyRqingMaxPowerAvailable": [1],
+                    "fault": [2],
+                    "notAvailable": [3]
+                }
+            },
+            "Trans.Input.Shaft.Speed" : {
+                "generic_name": "Trans.Input.Shaft.Speed",
+                "bit_position": 40,
+                "bit_size": 16,
+                "factor": 0.125,
+                "offset": 0,
+                "comment": "Rotational velocity of the primary shaft transferring power into the transmission.",
+                "unit": "rpm",
+                "is_big_endian": false,
+                "is_signed": false,
+                "writable" : true
+            },
+            "Progressive.Shift.Disable" : {
+                "generic_name": "Progressive.Shift.Disable",
+                "bit_position": 34,
+                "bit_size": 2,
+                "factor": 1,
+                "offset": 0,
+                "comment": "Command signal used to indicate that progressive shifting by the engine should be disallowed.",
+                "is_big_endian": false,
+                "is_signed": false,
+                "writable" : true,
+                "states": {
+                    "ProgressiveShiftIsNotDisabled": [0],
+                    "ProgressiveShiftIsDisabled": [1],
+                    "Reserved": [2],
+                    "TakeNoAction": [3]
+                }
+            },
+            "Eng.Momentary.Overspeed.Enable" : {
+                "generic_name": "Eng.Momentary.Overspeed.Enable",
+                "bit_position": 32,
+                "bit_size": 2,
+                "factor": 1,
+                "offset": 0,
+                "comment": "Command signal used to indicate that the engine speed may be boosted up to the maximum engine overspeed value to",
+                "is_big_endian": false,
+                "is_signed": false,
+                "writable" : true,
+                "states": {
+                    "MomentaryEngOverspeedIsDisabled": [0],
+                    "MomentaryEngOverspeedIsEnabled": [1],
+                    "Reserved": [2],
+                    "TakeNoAction": [3]
+                }
+            },
+            "Percent.Clutch.Slip" : {
+                "generic_name": "Percent.Clutch.Slip",
+                "bit_position": 24,
+                "bit_size": 8,
+                "factor": 0.4,
+                "offset": 0,
+                "comment": "Parameter which represents the ratio of input shaft speed to current engine speed (in percent).",
+                "unit": "%",
+                "is_big_endian": false,
+                "is_signed": false,
+                "writable" : true
+            },
+            "Trans.Output.Shaft.Speed" : {
+                "generic_name": "Trans.Output.Shaft.Speed",
+                "bit_position": 8,
+                "bit_size": 16,
+                "factor": 0.125,
+                "offset": 0,
+                "comment": "Calculated speed of the transmission output shaft.",
+                "unit": "rpm",
+                "is_big_endian": false,
+                "is_signed": false,
+                "writable" : true
+            },
+            "Trans.Shift.In.Process" : {
+                "generic_name": "Trans.Shift.In.Process",
+                "bit_position": 4,
+                "bit_size": 2,
+                "factor": 1,
+                "offset": 0,
+                "comment": "Indicates that the transmission is in process of shifting from the current gear to the selected gear.",
+                "is_big_endian": false,
+                "is_signed": false,
+                "writable" : true,
+                "states": {
+                    "ShiftIsNotInProcess": [0],
+                    "ShiftInProcess": [1],
+                    "Error": [2],
+                    "NotAvailable": [3]
+                }
+            },
+            "Trans.Driveline.Engaged" : {
+                "generic_name": "Trans.Driveline.Engaged",
+                "bit_position": 0,
+                "bit_size": 2,
+                "factor": 1,
+                "offset": 0,
+                "comment": "Driveline engaged indicates the transmission controlled portion of the driveline is engaged sufficiently to allow a transfer",
+                "is_big_endian": false,
+                "is_signed": false,
+                "writable" : true,
+                "states": {
+                    "DrivelineDisengaged": [0],
+                    "DrivelineEngaged": [1],
+                    "Error": [2],
+                    "NotAvailable": [3]
+                }
+            }
+        }
+    },
+    "61444": {
+        "comment": "Electronic Engine Controller 1",
+        "length": 8,
+        "name": "EEC1",
+        "bus" : "j1939",
+        "is_fd" : false,
+        "is_extended": false,
+        "is_j1939" : true,
+        "signals" : {
+            "Src.AddrssOf.Ctrllng.Dvc.Fr.Eng.Cntrl" : {
+                "generic_name": "Src.AddrssOf.Ctrllng.Dvc.Fr.Eng.Cntrl",
+                "bit_position": 40,
+                "bit_size": 8,
+                "factor": 1,
+                "offset": 0,
+                "comment": "The source address of the SAE J1939 device currently controlling the engine.",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Actl.Eng.Prcnt.Trque.High.Resolution" : {
+                "generic_name": "Actl.Eng.Prcnt.Trque.High.Resolution",
+                "bit_position": 4,
+                "bit_size": 4,
+                "factor": 0.125,
+                "offset": 0,
+                "comment": "This parameter displays an additional torque in percent of the reference engine torque.",
+                "unit": "%",
+                "is_big_endian": false,
+                "is_signed": false,
+                "states": {
+                    "0000": [0],
+                    "0125": [1],
+                    "0875": [7],
+                    "1111NotAvailable": [8]
+                }
+            },
+            "Eng.Demand.Percent.Torque" : {
+                "generic_name": "Eng.Demand.Percent.Torque",
+                "bit_position": 56,
+                "bit_size": 8,
+                "factor": 1,
+                "offset": -125,
+                "comment": "The requested torque output of the engine by all dynamic internal inputs, including smoke control, noise control and low",
+                "unit": "%",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Eng.Starter.Mode" : {
+                "generic_name": "Eng.Starter.Mode",
+                "bit_position": 48,
+                "bit_size": 4,
+                "factor": 1,
+                "offset": 0,
+                "comment": "There are several phases in a starting action and different reasons why a start cannot take place.",
+                "is_big_endian": false,
+                "is_signed": false,
+                "states": {
+                    "startNotRqed": [0],
+                    "starterActiveGearNotEngaged": [1],
+                    "starterActiveGearEngaged": [2],
+                    "strtFnshdStrtrNtActvAftrHvngBnA": [3],
+                    "strtrInhbtdDToEngAlreadyRunning": [4],
+                    "strtrInhbtdDTEngNtReadyForStart": [5],
+                    "strtrInhbtdDTDrvlnEnggdOthrTrns": [6],
+                    "strtrInhbtdDToActiveImmobilizer": [7],
+                    "strtrInhbtdDueToStarterOvertemp": [8],
+                    "1011Reserved": [9],
+                    "starterInhibitedReasonUnknown": [12],
+                    "error": [14],
+                    "notAvailable": [15]
+                }
+            },
+            "Eng.Speed" : {
+                "generic_name": "Eng.Speed",
+                "bit_position": 24,
+                "bit_size": 16,
+                "factor": 0.125,
+                "offset": 0,
+                "comment": "Actual engine speed which is calculated over a minimum crankshaft angle of 720 degrees divided by the number of cylinders.",
+                "unit": "rpm",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Actual.Eng.Percent.Torque" : {
+                "generic_name": "Actual.Eng.Percent.Torque",
+                "bit_position": 16,
+                "bit_size": 8,
+                "factor": 1,
+                "offset": -125,
+                "comment": "The calculated output torque of the engine.",
+                "unit": "%",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Drivers.Demand.Eng.Percent.Torque" : {
+                "generic_name": "Drivers.Demand.Eng.Percent.Torque",
+                "bit_position": 8,
+                "bit_size": 8,
+                "factor": 1,
+                "offset": -125,
+                "comment": "The requested torque output of the engine by the driver.",
+                "unit": "%",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Eng.Torque.Mode" : {
+                "generic_name": "Eng.Torque.Mode",
+                "bit_position": 0,
+                "bit_size": 4,
+                "factor": 1,
+                "offset": 0,
+                "comment": "State signal which indicates which engine torque mode is currently generating, limiting, or controlling the torque.",
+                "is_big_endian": false,
+                "is_signed": false,
+                "states": {
+                    "Low idle governor/no request (de": [0],
+                    "Accelerator pedal/operator selec": [1],
+                    "Cruise control": [2],
+                    "PTO governor": [3],
+                    "Road speed governor": [4],
+                    "ASR control": [5],
+                    "Transmission control": [6],
+                    "ABS control": [7],
+                    "Torque limiting": [8],
+                    "High speed governor": [9],
+                    "Braking system": [10],
+                    "Remote accelerator": [11],
+                    "Not available": [15]
+                }
+            }
+        }
+    },
+    "65253": {
+        "comment": "Engine Hours, Revolutions",
+        "length": 8,
+        "name": "HOURS",
+        "bus" : "j1939",
+        "is_fd" : false,
+        "is_extended": false,
+        "is_j1939" : true,
+        "signals" : {
+            "Eng.Total.Revolutions" : {
+                "generic_name": "Eng.Total.Revolutions",
+                "bit_position": 32,
+                "bit_size": 32,
+                "factor": 1000,
+                "offset": 0,
+                "comment": "Accumulated number of revolutions of engine crankshaft during its operation.",
+                "unit": "r",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Eng.Total.Hours.Of.Operation" : {
+                "generic_name": "Eng.Total.Hours.Of.Operation",
+                "bit_position": 0,
+                "bit_size": 32,
+                "factor": 0.05,
+                "offset": 0,
+                "comment": "Accumulated time of operation of engine.",
+                "unit": "hr",
+                "is_big_endian": false,
+                "is_signed": false
+            }
+        }
+    },
+    "61449": {
+        "comment": "Vehicle Dynamic Stability Control 2",
+        "length": 8,
+        "name": "VDC2",
+        "bus" : "j1939",
+        "is_fd" : false,
+        "is_extended": false,
+        "is_j1939" : true,
+        "signals" : {
+            "Steer.Wheel.Angle" : {
+                "generic_name": "Steer.Wheel.Angle",
+                "bit_position": 0,
+                "bit_size": 16,
+                "factor": 0.0009765625,
+                "offset": -31.374,
+                "comment": "The main operator`s steering wheel angle (on the steering column, not the actual wheel angle).",
+                "unit": "rad",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Longitudinal.Acceleration" : {
+                "generic_name": "Longitudinal.Acceleration",
+                "bit_position": 56,
+                "bit_size": 8,
+                "factor": 0.1,
+                "offset": -12.5,
+                "comment": "Indicates the longitudinal acceleration of the vehicle.",
+                "unit": "m/s/s",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Lateral.Acceleration" : {
+                "generic_name": "Lateral.Acceleration",
+                "bit_position": 40,
+                "bit_size": 16,
+                "factor": 0.00048828125,
+                "offset": -15.687,
+                "comment": "Indicates a lateral acceleration of the vehicle.",
+                "unit": "m/s/s",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Yaw.Rate" : {
+                "generic_name": "Yaw.Rate",
+                "bit_position": 24,
+                "bit_size": 16,
+                "factor": 0.0001220703125,
+                "offset": -3.92,
+                "comment": "Indicates the rotation about the vertical axis.",
+                "unit": "rad/s",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Steer.Wheel.Angle.Sensor.Type" : {
+                "generic_name": "Steer.Wheel.Angle.Sensor.Type",
+                "bit_position": 22,
+                "bit_size": 2,
+                "factor": 1,
+                "offset": 0,
+                "comment": "Indicates whether the steering wheel angle sensor is capable of absolute measuring of the number of steering wheel",
+                "is_big_endian": false,
+                "is_signed": false,
+                "states": {
+                    "RelativeMeasuringPrinciple": [0],
+                    "AbsMeasuringPrinciple": [1],
+                    "Reserved": [2],
+                    "NotAvailable": [3]
+                }
+            },
+            "Steer.Wheel.Turn.Counter" : {
+                "generic_name": "Steer.Wheel.Turn.Counter",
+                "bit_position": 16,
+                "bit_size": 6,
+                "factor": 1,
+                "offset": -32,
+                "comment": "Indicates number of steering wheel turns, absolute position or relative position at ignition on.",
+                "unit": "turns",
+                "is_big_endian": false,
+                "is_signed": false
+            }
+        }
+    },
+    "65215": {
+        "comment": "Wheel Speed Information",
+        "length": 8,
+        "name": "EBC2",
+        "bus" : "j1939",
+        "is_fd" : false,
+        "is_extended": false,
+        "is_j1939" : true,
+        "signals" : {
+            "Rlative.Speed.Rear.Axle2.Right.Wheel" : {
+                "generic_name": "Rlative.Speed.Rear.Axle2.Right.Wheel",
+                "bit_position": 56,
+                "bit_size": 8,
+                "factor": 0.0625,
+                "offset": -7.8125,
+                "comment": "The speed of the rear axle #2, right wheel relative to the front axle speed, SPN 904.",
+                "unit": "km/h",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Relative.Speed.Rear.Axle2.Left.Wheel" : {
+                "generic_name": "Relative.Speed.Rear.Axle2.Left.Wheel",
+                "bit_position": 48,
+                "bit_size": 8,
+                "factor": 0.0625,
+                "offset": -7.8125,
+                "comment": "The speed of the rear axle #2, left wheel relative to the front axle speed, SPN 904.",
+                "unit": "km/h",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Rlative.Speed.Rear.Axle1.Right.Wheel" : {
+                "generic_name": "Rlative.Speed.Rear.Axle1.Right.Wheel",
+                "bit_position": 40,
+                "bit_size": 8,
+                "factor": 0.0625,
+                "offset": -7.8125,
+                "comment": "The speed of the rear axle #1, right wheel relative to the front axle speed, SPN 904.",
+                "unit": "km/h",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Relative.Speed.Rear.Axle1.Left.Wheel" : {
+                "generic_name": "Relative.Speed.Rear.Axle1.Left.Wheel",
+                "bit_position": 32,
+                "bit_size": 8,
+                "factor": 0.0625,
+                "offset": -7.8125,
+                "comment": "The speed of the rear axle #1, left wheel relative to the front axle speed, SPN 904.",
+                "unit": "km/h",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Rlative.Speed.Front.Axle.Right.Wheel" : {
+                "generic_name": "Rlative.Speed.Front.Axle.Right.Wheel",
+                "bit_position": 24,
+                "bit_size": 8,
+                "factor": 0.0625,
+                "offset": -7.8125,
+                "comment": "The speed of the front axle, right wheel relative to the front axle speed, SPN 904.",
+                "unit": "km/h",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Relative.Speed.Front.Axle.Left.Wheel" : {
+                "generic_name": "Relative.Speed.Front.Axle.Left.Wheel",
+                "bit_position": 16,
+                "bit_size": 8,
+                "factor": 0.0625,
+                "offset": -7.8125,
+                "comment": "The speed of the front axle, left wheel relative to the front axle speed, SPN 904.",
+                "unit": "km/h",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Front.Axle.Speed" : {
+                "generic_name": "Front.Axle.Speed",
+                "bit_position": 0,
+                "bit_size": 16,
+                "factor": 0.00390625,
+                "offset": 0,
+                "comment": "The average speed of the two front wheels.",
+                "unit": "km/h",
+                "is_big_endian": false,
+                "is_signed": false
+            }
+        }
+    },
+    "65262": {
+        "comment": "Engine Temperature 1",
+        "length": 8,
+        "name": "ET1",
+        "bus" : "j1939",
+        "is_fd" : false,
+        "is_extended": false,
+        "is_j1939" : true,
+        "signals" : {
+            "Eng.Fuel.Temp1" : {
+                "generic_name": "Eng.Fuel.Temp1",
+                "bit_position": 8,
+                "bit_size": 8,
+                "factor": 1,
+                "offset": -40,
+                "comment": "Temperature of fuel (or gas) passing through the first fuel control system.",
+                "unit": "deg C",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Eng.Intercooler.Thermostat.Opening" : {
+                "generic_name": "Eng.Intercooler.Thermostat.Opening",
+                "bit_position": 56,
+                "bit_size": 8,
+                "factor": 0.4,
+                "offset": 0,
+                "comment": "The current position of the thermostat used to regulate the temperature of the engine intercooler.",
+                "unit": "%",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Eng.Intercooler.Temp" : {
+                "generic_name": "Eng.Intercooler.Temp",
+                "bit_position": 48,
+                "bit_size": 8,
+                "factor": 1,
+                "offset": -40,
+                "comment": "Temperature of liquid found in the intercooler located after the turbocharger.",
+                "unit": "deg C",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Eng.Turbo.Oil.Temp" : {
+                "generic_name": "Eng.Turbo.Oil.Temp",
+                "bit_position": 32,
+                "bit_size": 16,
+                "factor": 0.03125,
+                "offset": -273,
+                "comment": "Temperature of the turbocharger lubricant.",
+                "unit": "deg C",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Eng.Oil.Temp1" : {
+                "generic_name": "Eng.Oil.Temp1",
+                "bit_position": 16,
+                "bit_size": 16,
+                "factor": 0.03125,
+                "offset": -273,
+                "comment": "Temperature of the engine lubricant.",
+                "unit": "deg C",
+                "is_big_endian": false,
+                "is_signed": false
+            },
+            "Eng.Coolant.Temp" : {
+                "generic_name": "Eng.Coolant.Temp",
+                "bit_position": 0,
+                "bit_size": 8,
+                "factor": 0.03125,
+                "offset": -273,
+                "comment": "Temperature of liquid found in engine cooling system.",
+                "unit": "deg C",
+                "is_big_endian": false,
+                "is_signed": false
+            }
+        }
+    }
+},
+"diagnostic_messages": [
+		{
+			"bus": "hs",
+			"pid": 4,
+			"name": "engine.load",
+			"frequency": 5,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 5,
+			"name": "engine.coolant.temperature",
+			"frequency": 1,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 10,
+			"name": "fuel.pressure",
+			"frequency": 1,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 11,
+			"name": "intake.manifold.pressure",
+			"frequency": 1,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 12,
+			"name": "engine.speed",
+			"frequency": 5,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 13,
+			"name": "vehicle.speed",
+			"frequency": 5,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 15,
+			"name": "intake.air.temperature",
+			"frequency": 1,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 16,
+			"name": "mass.airflow",
+			"frequency": 5,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 17,
+			"name": "throttle.position",
+			"frequency": 5,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 31,
+			"name": "running.time",
+			"frequency": 1,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 45,
+			"name": "EGR.error",
+			"frequency": 0,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 47,
+			"name": "fuel.level",
+			"frequency": 1,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 51,
+			"name": "barometric.pressure",
+			"frequency": 1,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 70,
+			"name": "ambient.air.temperature",
+			"frequency": 1,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 76,
+			"name": "commanded.throttle.position",
+			"frequency": 1,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 82,
+			"name": "ethanol.fuel.percentage",
+			"frequency": 1,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 90,
+			"name": "accelerator.pedal.position",
+			"frequency": 5,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 91,
+			"name": "hybrid.battery-pack.remaining.life",
+			"frequency": 5,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 92,
+			"name": "engine.oil.temperature",
+			"frequency": 1,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 94,
+			"name": "engine.fuel.rate",
+			"frequency": 1,
+			"decoder": "decoder_t::decode_obd2_response"
+		},
+		{
+			"bus": "hs",
+			"pid": 99,
+			"name": "engine.torque",
+			"frequency": 1,
+			"decoder": "decoder_t::decode_obd2_response"
+		}
+	]
+}