Move member from obd2_signals_t class to

active_diagnostic_request_t (adr)class. It's more logical
to have them here as call about incoming diagnostic CAN
messages are made against adr class not obd2_signal_t that
it's a subset of diagnostic messages.

It's made to handle obd2 requests as well as normal UDS
diagnostic request for constructor proprietary diagnostic
signals.

Change-Id: I96c714640d6ecfa25dfc9942974057c1797eb0e1
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

6 files changed, 53 insertions, 85 deletions

diff --git a/src/can/can-signals.cpp b/src/can/can-signals.cpp
index 27a7df9..ce4e264 100644
--- a/src/can/can-signals.cpp
+++ b/src/can/can-signals.cpp
@@ -25,7 +25,7 @@
 #include "../obd2/obd2-signals.hpp"
 #include "../low-can-binding.hpp"
 
-std::string can_signal_t::prefix_ = "messages.";
+std::string can_signal_t::prefix_ = "messages";
 
 can_message_definition_t& can_signal_t::get_message()
 {
diff --git a/src/diagnostic/active-diagnostic-request.cpp b/src/diagnostic/active-diagnostic-request.cpp
index 7a43a0d..5e43d7a 100644
--- a/src/diagnostic/active-diagnostic-request.cpp
+++ b/src/diagnostic/active-diagnostic-request.cpp
@@ -17,6 +17,8 @@
 
 #include "active-diagnostic-request.hpp"
 
+std::string active_diagnostic_request_t::prefix_ = "diagnostic_messages";
+
 bool active_diagnostic_request_t::operator==(const active_diagnostic_request_t& b)
 {
 	return (bus_ == b.bus_ && id_ == b.id_ && handle_ == b.handle_) ? true : false;
@@ -72,6 +74,26 @@ DiagnosticRequestHandle* active_diagnostic_request_t::get_handle()
 	return handle_;
 }
 
+std::string& active_diagnostic_request_t::get_name()
+{
+	return name_;
+}
+
+std::string& active_diagnostic_request_t::get_prefix()
+{
+	return active_diagnostic_request_t::prefix_;
+}
+
+DiagnosticResponseDecoder& active_diagnostic_request_t::get_decoder()
+{
+	return decoder_;
+}
+
+DiagnosticResponseCallback& active_diagnostic_request_t::get_callback()
+{
+	return callback_;
+}
+
 bool active_diagnostic_request_t::get_recurring() const
 {
 	return recurring_;
@@ -102,6 +124,18 @@ void active_diagnostic_request_t::set_in_flight(bool val)
 	in_flight_ = val;
 }
 
+/**
+* @brief Check if requested signal name is an obd2 pid
+* 
+* @return true if name began with obd2 else false.
+*/
+bool active_diagnostic_request_t::is_diagnostic_signal(const std::string& name)
+{
+	if(name.find_first_of(prefix_.c_str(), 0, prefix_.size()))
+		return true;
+	return false;
+}
+
 bool active_diagnostic_request_t::should_send()
 {
 	return !get_in_flight() && (
diff --git a/src/diagnostic/active-diagnostic-request.hpp b/src/diagnostic/active-diagnostic-request.hpp
index fb87c83..74a969b 100644
--- a/src/diagnostic/active-diagnostic-request.hpp
+++ b/src/diagnostic/active-diagnostic-request.hpp
@@ -62,6 +62,8 @@ private:
 										* sending the frames of the request and receiving all frames of the response.*/
 	std::string name_; /*!< name_ - An optional human readable name this response, to be used when publishing received 
 						* responses. If the name is NULL, the published output will use the raw OBD-II response format.*/
+	static std::string prefix_; /*!< prefix_ - generic_name_ will be prefixed with it. It has to reflect the used protocol.
+								 * which make easier to sort message when the come in.*/
 	DiagnosticResponseDecoder decoder_; /*!< decoder_ - An optional DiagnosticResponseDecoder to parse the payload of responses
 											* to this request. If the decoder is NULL, the output will include the raw payload
 											* instead of a parsed value.*/
@@ -82,7 +84,6 @@ public:
 	active_diagnostic_request_t& operator=(const active_diagnostic_request_t& adr);
 	active_diagnostic_request_t();
 	active_diagnostic_request_t(active_diagnostic_request_t&&) = default;
-	//active_diagnostic_request_t(const active_diagnostic_request_t&) = default;
 	active_diagnostic_request_t(std::shared_ptr<can_bus_dev_t> bus, DiagnosticRequest* request,
 		const std::string& name, bool wait_for_multiple_responses,
 		const DiagnosticResponseDecoder decoder,
@@ -91,6 +92,10 @@ public:
 	uint32_t get_id() const;
 	std::shared_ptr<can_bus_dev_t> get_can_bus_dev();
 	DiagnosticRequestHandle* get_handle();
+	std::string& get_name();
+	static std::string& get_prefix();
+	DiagnosticResponseDecoder& get_decoder();
+	DiagnosticResponseCallback& get_callback();
 	bool get_recurring() const;
 	bool get_in_flight() const;
 	frequency_clock_t& get_frequency_clock();
@@ -99,6 +104,8 @@ public:
 	void set_handle(DiagnosticShims& shims, DiagnosticRequest* request);
 	void set_in_flight(bool val);
 
+	static bool is_diagnostic_signal(const std::string& name);
+
 	bool should_send();
 
 	bool timed_out();
diff --git a/src/diagnostic/diagnostic-message.cpp b/src/diagnostic/diagnostic-message.cpp
index 8b2273e..5a8f9e5 100644
--- a/src/diagnostic/diagnostic-message.cpp
+++ b/src/diagnostic/diagnostic-message.cpp
@@ -33,8 +33,6 @@ const char *UNIT_NAMES[10] = {
 	"NM"
 };
 
-std::string obd2_signal_t::prefix_ = "diagnostic_messages.";
-
 obd2_signal_t::obd2_signal_t(uint8_t pid, const char* generic_name, const int min, const int max, enum UNIT unit, int frequency, bool supported)
 	:	pid_{pid}, generic_name_{generic_name}, min_{min}, max_{max}, unit_{unit}, frequency_{frequency}, supported_{supported}
 {
@@ -52,12 +50,7 @@ const std::string& obd2_signal_t::get_generic_name() const
 
 const std::string obd2_signal_t::get_name() const
 {
-	return prefix_ + "." + generic_name_;
-}
-
-const std::string& obd2_signal_t::get_prefix()
-{
-	return prefix_;
+	return active_diagnostic_request_t::get_prefix() + "." + generic_name_;
 }
 
 int obd2_signal_t::get_frequency() const
@@ -65,11 +58,6 @@ int obd2_signal_t::get_frequency() const
 	return frequency_;
 }
 
-void obd2_signal_t::set_prefix(const std::string& val)
-{
-	prefix_ = val;
-}
-
 /**
  * @brief Build a DiagnosticRequest struct to be passed
  *  to diagnostic manager instance.
@@ -87,73 +75,17 @@ const DiagnosticRequest obd2_signal_t::build_diagnostic_request()
 			/*DiagnosticRequestType: */DiagnosticRequestType::DIAGNOSTIC_REQUEST_TYPE_PID };
 }
 
-bool obd2_signal_t::is_obd2_response(can_message_t can_message)
-{
-	/*
-	if(can_message.get_id() >= 0x7E8 && can_message.get_id() <= 0x7EF)
-	{
-		openxc_VehicleMessage message = {0};
-		message.has_type = true;
-		message.type = openxc_VehicleMessage_Type_DIAGNOSTIC;
-		message.has_diagnostic_response = true;
-		message.diagnostic_response = {0};
-		message.diagnostic_response.has_bus = true;
-		message.diagnostic_response.bus = bus->address;
-		message.diagnostic_response.has_message_id = true;
-		//7DF should respond with a random message id between 7e8 and 7ef
-		//7E0 through 7E7 should respond with a id that is 8 higher (7E0->7E8)
-		if(can_message.get_id() == 0x7DF)
-		{
-			message.diagnostic_response.message_id = rand()%(0x7EF-0x7E8 + 1) + 0x7E8;
-		}
-		else if(commandRequest->message_id >= 0x7E0 && commandRequest->message_id <= 0x7E7)
-		{
-			message.diagnostic_response.message_id = commandRequest->message_id + 8;
-		}
-		message.diagnostic_response.has_mode = true;
-		message.diagnostic_response.mode = commandRequest->mode;
-		if(commandRequest->has_pid)
-		{
-			message.diagnostic_response.has_pid = true;
-			message.diagnostic_response.pid = commandRequest->pid;
-		}
-		message.diagnostic_response.has_value = true;
-		message.diagnostic_response.value = rand() % 100;
-		pipeline::publish(&message, &getConfiguration()->pipeline);
-	}
-	else //If it's outside the range, the command_request will return false
-	{
-		debug("Sent message ID is outside the valid range for emulator (7DF to 7E7)");
-		status=false;
-	}
-	return false;
-	*/
-	return false;
-} 	
-
 /**
 * @brief Check if a request is an OBD-II PID request.
 *
 * @return true if the request is a mode 1 request and it has a 1 byte PID.
 */
-bool obd2_signal_t::is_obd2_request(DiagnosticRequest* request)
+bool obd2_signal_t::is_obd2_request(const DiagnosticRequest* request)
 {
 	return request->mode == 0x1 && request->has_pid && request->pid < 0xff;
 }
 
 /**
-* @brief Check if requested signal name is an obd2 pid
-* 
-* @return true if name began with obd2 else false.
-*/
-bool obd2_signal_t::is_obd2_signal(const std::string& name)
-{
-	if(name.find_first_of(prefix_.c_str(), 0, prefix_.size()))
-		return true;
-	return false;
-}
-
-/**
 * @brief Decode the payload of an OBD-II PID.
 *
 * This function matches the type signature for a DiagnosticResponseDecoder, so
diff --git a/src/diagnostic/diagnostic-message.hpp b/src/diagnostic/diagnostic-message.hpp
index ec4521f..7f407b4 100644
--- a/src/diagnostic/diagnostic-message.hpp
+++ b/src/diagnostic/diagnostic-message.hpp
@@ -46,8 +46,6 @@ class obd2_signal_t {
 	private:
 		uint8_t pid_; /*!< pid - The 1 byte PID.*/
 		std::string generic_name_; /*!< generic_name_ - A human readable name to use for this PID when published.*/
-		static std::string prefix_; /*!< prefix_ - generic_name_ will be prefixed with it. It has to reflect the used protocol.
-						  * which make easier to sort message when the come in.*/
 		int min_; /*!< min_ - Minimum value that can take this pid */
 		int max_; /*!< max_ - Maximum value that can take this pid */
 		enum UNIT unit_; /*!< unit_ : Which unit system is used by that pid. See enum UNIT above.*/
@@ -61,16 +59,12 @@ class obd2_signal_t {
 		uint32_t get_pid();
 		const std::string& get_generic_name() const;
 		const std::string get_name() const;
-		static const std::string& get_prefix();
 		int get_frequency() const;
 
-		static void set_prefix(const std::string& val);
-
 		const DiagnosticRequest build_diagnostic_request();
 
-		bool is_obd2_response(can_message_t can_message);
-		bool is_obd2_request(DiagnosticRequest *request);
-		static bool is_obd2_signal(const std::string& name);
+		bool is_obd2_response(const can_message_t& can_message);
+		bool is_obd2_request(const DiagnosticRequest *request);
 
 		static float decode_obd2_response(const DiagnosticResponse* response, float parsedPayload);
-};
\ No newline at end of file
+};
diff --git a/src/low-can-binding.cpp b/src/low-can-binding.cpp
index 0c418fe..8ecf742 100644
--- a/src/low-can-binding.cpp
+++ b/src/low-can-binding.cpp
@@ -132,7 +132,7 @@ static int subscribe_unsubscribe_signals(struct afb_req request, bool subscribe,
 	for(const std::string& sig : signals)
 	{
 		int ret;
-		if (obd2_signal_t::is_obd2_signal(sig))
+		if (active_diagnostic_request_t::is_diagnostic_signal(sig))
 		{
 			std::vector<obd2_signal_t*> found;
 			configuration_t::instance().find_obd2_signals(build_DynamicField(sig), found);
@@ -252,9 +252,10 @@ extern "C"
 			return 0;
 		}
 
-		/// Initialize Diagnostic manager that will handle obd2 requests
-		diagnostic_manager_t& diag_manager = configuration_t::instance().get_diagnostic_manager();
-		diag_manager.initialize(can_bus_manager.get_can_devices().front());
+		/// Initialize Diagnostic manager that will handle obd2 requests.
+		/// We pass by default the first CAN bus device to its Initialization.
+		/// TODO: be able to choose the CAN bus device that will be use as Diagnostic bus.
+		configuration_t::instance().get_diagnostic_manager().initialize(can_bus_manager.get_can_devices().front());
 
 		ERROR(binder_interface, "There was something wrong with CAN device Initialization. Check your config file maybe");
 		return 1;