/* ############################################################################### # # Temboo MQTT edge device library # # Copyright (C) 2015, Temboo Inc. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, # software distributed under the License is distributed on an # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, # either express or implied. See the License for the specific # language governing permissions and limitations under the License. # ############################################################################### */ #ifndef TEMBOOMQTT_H_ #define TEMBOOMQTT_H_ #include /////////////////////////////////////////////////////// // BEGIN ARDUINO NON-YUN SUPPORT /////////////////////////////////////////////////////// #include "Arduino.h" #include "utility/MQTTClient.h" #include "utility/ArduinoTimer.h" #include "utility/TembooTags.h" #include "utility/TembooMQTTIPStack.h" #include "utility/ChoreoInputSet.h" #include "utility/ChoreoOutputSet.h" #include "utility/ChoreoPreset.h" #define IS_EMPTY(s) (NULL == s || '\0' == *s) #define TEMBOO_ERROR_OK (0) #define TEMBOO_ERROR_FAILURE (1) #define TEMBOO_ERROR_ACCOUNT_MISSING (201) #define TEMBOO_ERROR_CHOREO_MISSING (203) #define TEMBOO_ERROR_APPKEY_NAME_MISSING (205) #define TEMBOO_ERROR_APPKEY_MISSING (207) #define TEMBOO_ERROR_HTTP_ERROR (223) #define TEMBOO_ERROR_TIMEOUT (225) #define TEMBOO_ERROR_MEMORY (900) #define TEMBOO_ERROR_TCPIP_CONNECT_FAIL (901) #define TEMBOO_ERROR_MQTT_CONNECT_FAIL (902) #define TEMBOO_ERROR_MQTT_SUBSCRIBE_FAIL (903) #define TEMBOO_ERROR_MQTT_DISCONNECT (904) #define TEMBOO_ERROR_DEVICE_ID_MISSING (905) /* * The data from the MQTT is too large to fit in the buffer. * The MQTT read buffer read as much as it could and discarded * the rest of the packet data. Increase MAX_MESSAGE_SIZE * to read more data in MQTT's readbuf */ #define TEMBOO_ERROR_MQTT_BUFFER_OVERFLOW (906) /* * There was more data to be returned in the packet data than could * fit in the return buffer. Incease MAX_RESPONSE_SIZE to read more * of the packet response */ #define TEMBOO_ERROR_MQTT_DATA_TRUNCATED (907) #define TEMBOO_ERROR_NO_RESPONSE (0xFFFF) static const int MAX_MESSAGE_SIZE = 512; static const int MAX_RESPONSE_SIZE = 100; static const int MAX_HANDLERS = 4; static const int YIELD_TIME_MILLIS = 200; typedef MQTT::Client BaseClient; class TembooMQTTClient : public BaseClient { public: TembooMQTTClient(TembooMQTTIPStack& ipStack, unsigned int commandTimeoutMs = 30000 ); virtual ~TembooMQTTClient(); using BaseClient::connect; int connect(const char* hostname, int port=1883); using BaseClient::isConnected; bool isConnected(); int sendChoreoRequest(const char* request, size_t len); int setDeviceId(char* id); int setDeviceIdFromMac(byte (&mac)[6]); protected: TembooMQTTIPStack& m_ipStack; char* m_deviceId; char* m_requestTopic; char* m_ackTopic; char* m_responseTopic; char* m_dataTopic; char* strCatNew_P(const char*, const char*); void makeTopics(); }; class TembooMQTTSession; class TembooMQTTChoreo : public Stream { public: // Constructor. // client - an instance of a TembooMQTTClient. // Used to communicate with a Temboo Gateway. TembooMQTTChoreo(TembooMQTTClient& client); ~TembooMQTTChoreo(); // Does nothing. Just for source compatibility with Yun code. void begin() {}; // Sets the account name to use when communicating with Temboo. // (required) void setAccountName(const String& accountName); void setAccountName(const char* accountName); // Sets the application key name to use with choreo execution requests. // (required) void setAppKeyName(const String& appKeyName); void setAppKeyName(const char* appKeyName); // Sets the application key value to use with choreo execution requests // (required) void setAppKey(const String& appKey); void setAppKey(const char* appKey); // sets the name of the choreo to be executed. // (required) void setChoreo(const String& choreoPath); void setChoreo(const char* choreoPath); // sets the name of the saved inputs to use when executing the choreo // (optional) void setSavedInputs(const String& savedInputsName); void setSavedInputs(const char* savedInputsName); void setCredential(const String& credentialName); void setCredential(const char* credentialName); void setProfile(const String& profileName); void setProfile(const char* profileName); // sets an input to be used when executing a choreo. // (optional or required, depending on the choreo being executed.) void addInput(const String& inputName, const String& inputValue); void addInput(const char* inputName, const char* inputValue); void addInput(const char* inputName, const String& inputValue); void addInput(const String& inputName, const char* inputValue); // sets an output filter to be used to process the choreo output // (optional) void addOutputFilter(const char* filterName, const char* filterPath, const char* variableName); void addOutputFilter(const String& filterName, const char* filterPath, const char* variableName); void addOutputFilter(const char* filterName, const String& filterPath, const char* variableName); void addOutputFilter(const String& filterName, const String& filterPath, const char* variableName); void addOutputFilter(const char* filterName, const char* filterPath, const String& variableName); void addOutputFilter(const String& filterName, const char* filterPath, const String& variableName); void addOutputFilter(const char* filterName, const String& filterPath, const String& variableName); void addOutputFilter(const String& filterName, const String& filterPath, const String& variableName); // run the choreo using the current input info int run(uint16_t timeoutSecs); char* getResponseData() {return m_respData;} char* getHTTPResponseCode() {return m_httpCodeStr;} // Stream interface - see the Arduino library documentation. void close() {}; int available(); int read(); int peek(); void flush(); //Print interface - see the Arduino library documentation size_t write(uint8_t data); protected: TembooMQTTClient& m_client; const char* m_accountName; const char* m_appKeyName; const char* m_appKeyValue; const char* m_path; ChoreoInputSet m_inputs; ChoreoOutputSet m_outputs; ChoreoPreset m_preset; char m_httpCodeStr[4]; volatile bool m_haveHttpCode; uint16_t m_ackCode; volatile bool m_haveAckCode; char m_respData[MAX_RESPONSE_SIZE+1]; volatile bool m_haveData; uint16_t m_requestId; static uint16_t s_nextRequestId; volatile uint16_t m_packetStatus; // variables for the stream interface size_t m_availableChars; const char* m_nextChar; enum State {START, HTTP_CODE_PRE, HTTP_CODE_VALUE, HTTP_CODE_SUF, RESP_DATA, END}; State m_nextState; protected: uint16_t getRequestId() {return m_requestId;} void setAckCode(uint16_t ackCode); void setHTTPResponseCode(char* respCode); void setResponseData(char* data, size_t len); int waitForResponse(volatile bool& var, TembooMQTTSession& session, ArduinoTimer& timer); friend void handleDataMessage(MQTT::MessageData& md); friend void handleResponseMessage(MQTT::MessageData& md); friend void handleAckMessage(MQTT::MessageData& md); }; #endif //TEMBOO_H_