File content as of revision 15:bbb1cf6d0b38:

/* Copyright C2014 ARM, MIT License
 *
 * Author: Doug Anson (doug.anson@arm.com)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
 * and associated documentation files the "Software", to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or
 * substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

 #include "Definitions.h"       // definitions including platform specifics...
 #include "Logger.h"
 
 // include salesforce.com credentials
 #include "sf_creds.h"
 
 // our Serial port
 #include "BufferedSerial.h"
 BufferedSerial pc(USBTX, USBRX);
 #define LOG_CONSOLE(...) { pc.printf(__VA_ARGS__); }
 
 // mbed AppBoard Shield LCD
 C12832 lcd(D11, D13, D12, D7, D10);
 
 // Earbud support
 #include "GroveEarbudSensor.h"
 InterruptIn sensor(D2);
 GroveEarbudSensor earbud(&sensor,&pc);
     
 // Ethernet
 #include "EthernetInterface.h"
 EthernetInterface ethernet;
 
 // HTTP 
 #include "HTTPClient.h"
 HTTPClient http;
 
 // Salesforce.com Interface
 #include "SalesforceInterface.h"
 
 // Sensor Lat/Long - Moscone West: 37.783588, -122.403392
 #define SENSOR_LATITUDE     "37.783588"
 #define SENSOR_LONGITUDE    "-122.403392"
 
 // Salesforce.com Configuration/Tunables
 char *hrm_object_name          = "HeartRate__c";            // custom object 
 char *hrm_bpm_field_name       = "bpm__c";                  // heartrate field
 char *hrm_user_field_name      = "Name";                    // heartrate user
 char *hrm_counter_field_name   = "count__c";                // heartrate counter
 char *hrm_latitude             = "latitude__c";             // sensor latitude
 char *hrm_longitude            = "longitude__c";            // sensor longitude
 char *hrm_user                 = "Doug Anson";              // whos heartrate is this?
 
 // main loop toggle
 bool do_loop                   = true;
 
 // # retries before we give up and exit
 int num_retries                = MAX_TRIES;
  
 // heartrate values and iteration counter
 volatile int oldheartrate = HEARTRATE_OFF;
 volatile int iteration_counter = 1;
 
 // Salesforce.com record ID 
 DEFINE_SML_BUFFER(bpm_record_id);                           
 
 // Create the heart rate record in Salesforce.com
 void create_heartrate_record(Logger *logger,SalesforceInterface *sf) {
     // create a new record
     MbedJSONValue bpm_record;
     int heartrate = (int)earbud.getHeartRate();
     bpm_record[hrm_bpm_field_name]     = heartrate;
     bpm_record[hrm_user_field_name]    = hrm_user;
     bpm_record[hrm_counter_field_name] = (int)iteration_counter;
     bpm_record[hrm_latitude]           = SENSOR_LATITUDE;
     bpm_record[hrm_longitude]          = SENSOR_LONGITUDE;
     
     logger->log("ARM Salesforce HRM v%s\r\nCreate: new bpm record(%d): %d\r\nSending...",APP_VERSION,iteration_counter,heartrate);
     logger->logConsole("Initializing BPM record: %s",bpm_record.serialize().c_str());
     
     // create the BPM record in salesforce.com
     MbedJSONValue response = sf->createRecord(hrm_object_name,bpm_record);
     
     // display the result
     char *result = (char *)response.serialize().c_str();
     if (result != NULL && strlen(result) > 0 && strcmp(result,"null") != 0) {
        // save off the token if we succeeded
        logger->log("ARM Salesforce HRM v%s\r\nCreate: new bpm record(%d): %d\r\nSending...SUCCESS",APP_VERSION,iteration_counter,heartrate);
        logger->logConsole("Create: result: %s http_code = %d",result,sf->httpResponseCode());
        RESET_SML_BUFFER(bpm_record_id);
        strcpy(bpm_record_id,(char *)response["id"].get<std::string>().c_str());
        logger->turnLEDGreen();
        if (heartrate > 0) oldheartrate = heartrate;
        ++iteration_counter;
     }
     else {
        // failure
        logger->log("ARM Salesforce HRM v%s\r\nCreate: new bpm record(%d): %d\r\nSending...FAILED",APP_VERSION,iteration_counter,heartrate);
        logger->logConsole("Create: FAILED http_code=%d",sf->httpResponseCode());
        logger->turnLEDRed();
        do_loop = false;
     }
 }
 
 // Update the heart rate record in Salesforce.com
 void update_heartrate_record(Logger *logger,SalesforceInterface *sf) {
     logger->turnLEDOrange();
     
     // get our latest heartrate
     int heartrate = (int)earbud.getHeartRate();
     
     // only update SF if we have a valid change
     if (heartrate > 0 && heartrate != oldheartrate) { 
         // update am existing record - assume "name" is the proper key for the record you wish to update...
         MbedJSONValue bpm_record;
         bpm_record[hrm_bpm_field_name]     = heartrate;
         bpm_record[hrm_user_field_name]    = hrm_user;
         bpm_record[hrm_counter_field_name] = (int)iteration_counter;
         bpm_record[hrm_latitude]           = SENSOR_LATITUDE;
         bpm_record[hrm_longitude]          = SENSOR_LONGITUDE;
    
         // DEBUG
         logger->log("ARM Salesforce HRM v%s\r\nUpdate HR(%d): %d bpm\r\nSending...",APP_VERSION,iteration_counter,heartrate);
         logger->logConsole("Update: updated record: %s",bpm_record.serialize().c_str());
         
         // update the BPM record in salesforce.com
         bool updated = sf->updateRecord(hrm_object_name,bpm_record_id,bpm_record);
         
         // display the result
         if (updated) {
            // SUCCESS
            logger->log("ARM Salesforce HRM v%s\r\nUpdate HR(%d): %d bpm\r\nSending...SUCCESS",APP_VERSION,iteration_counter,heartrate);
            logger->logConsole("Update: successful! http_code=%d",sf->httpResponseCode());
            logger->turnLEDGreen();
            if (heartrate > 0) { oldheartrate = heartrate; ++iteration_counter; }
         }
         else {
            if (num_retries > 0) {
                // retry state
                logger->turnLEDPurple();
                
                // OAUTH token may have expired - reset and retry
                logger->logConsole("Retrying update (%d of %d)...",(MAX_TRIES - num_retries)+1, MAX_TRIES);
                if (num_retries == MAX_TRIES) --iteration_counter;        // one time only in retries...
                --num_retries;
                sf->resetSalesforceToken();
                update_heartrate_record(logger,sf);
            }
            else {
                // failure
                logger->log("ARM Salesforce HRM v%s\r\nUpdate HR(%d): %d bpm\r\nSending...FAILED",APP_VERSION,iteration_counter,heartrate);
                logger->logConsole("Update: FAILED http_code=%d",sf->httpResponseCode());
                do_loop = false;
                
                // give-up state
                logger->turnLEDRed();
            }
         }
     }
     else {
         logger->logConsole("Heartrate unchanged...");
         logger->turnLEDGreen();
     }
 }
 
 // Report heart rate to Salesforce.com
 void report_heartrate(Logger *logger,SalesforceInterface *sf) {
     if (iteration_counter == 1) create_heartrate_record(logger,sf);
     else update_heartrate_record(logger,sf);
 }
   
 // Main Task...
 void mainTask(void const *v) {
        
    // create our object instances 
    Logger logger(&pc,&lcd);    
    SalesforceInterface *sf = NULL;
    
    // announce
    logger.log("\r\n\r\nARM Salesforce HRM v%s",APP_VERSION);
    logger.turnLEDBlue();
    wait(1);
    
    // initialize Ethernet
    logger.log("Initializing Ethernet...");
    ethernet.init();
    
    // get a DHCP address and bring the network interface up
    logger.log("Getting IP Address...");
    logger.turnLEDYellow();
    if (ethernet.connect() == 0) {
        // log our IP address (DHCP)
        logger.log("IP Address: %s",ethernet.getIPAddress());
        
        // allocate the Salesforce.com interface
        logger.logConsole("Allocating the Saleforce.com interface...");
        sf = new SalesforceInterface(&http,&logger);
        
        // set our Salesforce.com credentials
        logger.logConsole("Setting credentials in the Salesforce.com interface...");
        sf->setCredentials(username,password,client_id,client_secret);
                
        // enter main loop
        logger.logConsole("Beginning main event loop...");
        while(do_loop) {
            report_heartrate(&logger,sf);
            Thread::wait(WAIT_TIME_MS);
        }
        
        // if we fell out of the loop exit...
        logger.log("Application Exiting...");
        logger.turnLEDRed();
        exit(1);
     }
     else {
         logger.log("No Network... Exiting...");
         logger.turnLEDRed();
         exit(1);
     }     
  }
  
  // main entry
  int main() {
     Thread workerTask(mainTask, NULL, osPriorityNormal, STACK_SIZE);
     while (true) {
        Thread::wait(10*WAIT_TIME_MS);
     }
  }