service/soft-sensor-manager/SampleApp/linux/WeightSensorApp/src/WeightSensorApp.cpp

   1
   2 /******************************************************************
   3  *
   4  * Copyright 2015 Samsung Electronics All Rights Reserved.
   5  *
   6  *
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  *
  20  ******************************************************************/
  21
  22 #include <WeightSensorApp.h>
  23
  24 int g_Observation = 0;
  25
  26 OCEntityHandlerResult entityHandler(std::shared_ptr< OCResourceRequest > request);
  27
  28 /*
  29  * TempResourceFunctions
  30  */
  31
  32 void WeightResource::registerResource()
  33 {
  34     uint8_t resourceProperty = OC_DISCOVERABLE | OC_OBSERVABLE;
  35
  36     // This will internally create and register the resource.
  37     OCStackResult result = OC::OCPlatform::registerResource(m_resourceHandle, m_resourceUri,
  38                            m_resourceTypes[0], m_resourceInterfaces[0], &entityHandler, resourceProperty);
  39
  40     if (OC_STACK_OK != result)
  41     {
  42         cout << "Resource creation was unsuccessful\n";
  43     }
  44 }
  45
  46 OCResourceHandle WeightResource::getHandle()
  47 {
  48     return m_resourceHandle;
  49 }
  50
  51 void WeightResource::setResourceRepresentation(OCRepresentation &rep)
  52 {
  53     double tempWeight;
  54
  55
  56
  57     rep.getValue("2", tempWeight);
  58
  59
  60     m_weight= tempWeight;
  61
  62     cout << "\t\t\t" << "Received representation: " << endl;
  63
  64     cout << "\t\t\t\t" << "Weight" << m_weight << endl;
  65
  66 }
  67
  68 OCRepresentation WeightResource::getResourceRepresentation()
  69 {
  70
  71     m_resourceRep.setValue("0", std::string("weight"));
  72     m_resourceRep.setValue("1", std::string("double"));
  73     m_resourceRep.setValue("2", std::to_string(m_weight));
  74
  75     return m_resourceRep;
  76 }
  77
  78 // Create the instance of the TemphumidResource class
  79 WeightResource g_myResource;
  80
  81 void *TestSensorVal(void *param)
  82 {
  83
  84     bool bFlag = true;
  85     int nSleep_time=INTERVAL_FOR_CHECK;
  86     double nWeight;
  87
  88     std::cout << "[WeightSensorAPP] ::" << __func__ << " is called."
  89               << std::endl;
  90
  91 //      g_myResource.m_weight = 33;
  92         nWeight=INIT_VAL;
  93
  94     // This function continuously monitors for the changes
  95     while (1)
  96     {
  97
  98
  99         sleep(nSleep_time);
 100
 101
 102         if (g_Observation)
 103         {
 104
 105                         //g_myResource.m_weight+=0.01;
 106
 107             if(bFlag){
 108
 109                 nSleep_time =INTERVAL_FOR_MEASUREMENT;
 110                 nWeight+=DIFF_VAL;
 111                 g_myResource.m_weight=nWeight;
 112             }
 113             else{
 114                 nSleep_time =INTERVAL_FOR_CHECK;
 115                 g_myResource.m_weight=0;
 116
 117
 118             }
 119             bFlag=bFlag^true;
 120
 121                         cout << "\n weight updated to : " << g_myResource.m_weight << endl;
 122             cout << "Notifying observers with resource handle: " << g_myResource.getHandle()
 123                  << endl;
 124
 125             OCStackResult result = OCPlatform::notifyAllObservers(g_myResource.getHandle());
 126
 127             if (OC_STACK_NO_OBSERVERS == result)
 128             {
 129                 cout << "No More observers, stopping notifications" << endl;
 130                 g_Observation = 0;
 131             }
 132         }
 133         else{
 134
 135             nSleep_time=INTERVAL_FOR_CHECK ;
 136         }
 137
 138     }
 139     return NULL;
 140 }
 141
 142 OCEntityHandlerResult entityHandler(std::shared_ptr< OCResourceRequest > request)
 143 {
 144     cout << "\tIn Server CPP entity handler:\n";
 145
 146     auto response = std::make_shared<OC::OCResourceResponse>();
 147
 148     if (request)
 149     {
 150         // Get the request type and request flag
 151         std::string requestType = request->getRequestType();
 152         int requestFlag = request->getRequestHandlerFlag();
 153
 154         response->setRequestHandle(request->getRequestHandle());
 155         response->setResourceHandle(request->getResourceHandle());
 156
 157         if (requestFlag & RequestHandlerFlag::RequestFlag)
 158         {
 159             cout << "\t\trequestFlag : Request\n";
 160
 161             // If the request type is GET
 162             if (requestType == "GET")
 163             {
 164                 cout << "\t\t\trequestType : GET\n";
 165
 166                 // Check for query params (if any)
 167                 // Process query params and do required operations ..
 168
 169                 // Get the representation of this resource at this point and send it as response
 170                 OCRepresentation rep = g_myResource.getResourceRepresentation();
 171
 172                 if (response)
 173                 {
 174                     // TODO Error Code
 175                     response->setErrorCode(200);
 176                     response->setResourceRepresentation(rep, DEFAULT_INTERFACE);
 177                 }
 178             }
 179             else if (requestType == "PUT")
 180             {
 181                 // PUT request operations
 182             }
 183             else if (requestType == "POST")
 184             {
 185                 // POST request operations
 186             }
 187             else if (requestType == "DELETE")
 188             {
 189                 // DELETE request operations
 190             }
 191         }
 192
 193         if (requestFlag & RequestHandlerFlag::ObserverFlag)
 194         {
 195             pthread_t threadId;
 196
 197             cout << "\t\trequestFlag : Observer\n";
 198             g_Observation = 1;
 199
 200             static int startedThread = 0;
 201
 202             if (!startedThread)
 203             {
 204                 pthread_create(&threadId, NULL, TestSensorVal, (void *) NULL);
 205                 startedThread = 1;
 206             }
 207         }
 208     }
 209     else
 210     {
 211         std::cout << "Request invalid" << std::endl;
 212     }
 213
 214     return OCPlatform::sendResponse(response) == OC_STACK_OK ? OC_EH_OK : OC_EH_ERROR;
 215 }
 216
 217 int main()
 218 {
 219     // Create PlatformConfig object
 220     PlatformConfig cfg(COAP_SRVTYPE, COAP_MODE, COAP_IP, COAP_PORT, OC::QualityOfService::LowQos);
 221
 222     try
 223     {
 224         OC::OCPlatform::Configure(cfg);
 225
 226         OC::OCPlatform::startPresence(60);
 227
 228         g_myResource.registerResource();
 229
 230         int input = 0;
 231         cout << "Type any key to terminate" << endl;
 232         cin >> input;
 233
 234         OC::OCPlatform::stopPresence();
 235     }
 236     catch (std::exception e)
 237     {
 238         cout << e.what() << endl;
 239     }
 240 }
 241