service/soft-sensor-manager/SSMCore/src/SensorProcessor/ResourceFinder.cpp

   1 /******************************************************************
   2  *
   3  * Copyright 2014 Samsung Electronics All Rights Reserved.
   4  *
   5  *
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  ******************************************************************/
  20 #include "ResourceFinder.h"
  21
  22 SSMRESULT CResourceFinder::finalConstruct()
  23 {
  24     SSMRESULT res = SSM_E_FAIL;
  25
  26     OC::PlatformConfig cfg(OC::ServiceType::InProc, OC::ModeType::Both, "0.0.0.0", 0,
  27                            OC::QualityOfService::LowQos);
  28
  29     SSM_CLEANUP_ASSERT(CreateGlobalInstance(OID_ITasker, (IBase **)&m_pTasker));
  30
  31     OC::OCPlatform::Configure(cfg);
  32
  33     m_pResourceFinderEvent = NULL;
  34
  35     m_multicastPresenceHandle = nullptr;
  36
  37 CLEANUP:
  38     return res;
  39 }
  40
  41 void CResourceFinder::finalRelease()
  42 {
  43 }
  44
  45 SSMRESULT CResourceFinder::registerResourceFinderEvent(IN IResourceFinderEvent *pEvent)
  46 {
  47     m_pResourceFinderEvent = pEvent;
  48     return SSM_S_OK;
  49 }
  50
  51 void CResourceFinder::onResourceFound(std::shared_ptr< OC::OCResource > resource)
  52 {
  53     if (resource)
  54     {
  55         std::string path = resource->host() + resource->uri();
  56
  57         if (m_mapResourceHandler.find(path) != m_mapResourceHandler.end())
  58             return;
  59
  60         intptr_t      *pMessage = new intptr_t [2];
  61         pMessage[0] = RESOURCE_DISCOVER_REQUESTPROFILE;
  62         pMessage[1] = reinterpret_cast<intptr_t> (new  std::shared_ptr<OC::OCResource>(resource));
  63
  64         m_pTasker->addTask(this, pMessage);
  65     }
  66 }
  67
  68 void CResourceFinder::presenceHandler(OCStackResult result, const unsigned int nonce,
  69                                       const std::string &hostAddress)
  70 {
  71     SSMRESULT res = SSM_E_FAIL;
  72     OCStackResult ret = OC_STACK_ERROR;
  73     intptr_t *pMessage = NULL;
  74     std::ostringstream requestURI;
  75
  76     switch (result)
  77     {
  78         case OC_STACK_OK:
  79             requestURI << "coap://" << hostAddress << ":" << OC_MULTICAST_PORT <<
  80                        "/oc/core?rt=SoftSensorManager.Sensor";
  81
  82             ret = OC::OCPlatform::findResource("", requestURI.str(), OC_WIFI,
  83                                                std::bind(&CResourceFinder::onResourceFound, this, std::placeholders::_1));
  84
  85             if (ret != OC_STACK_OK)
  86                 SSM_CLEANUP_ASSERT(SSM_E_FAIL);
  87
  88             break;
  89
  90         case OC_STACK_PRESENCE_STOPPED:
  91         case OC_STACK_PRESENCE_TIMEOUT:
  92             if (m_mapResources.find(hostAddress) != m_mapResources.end())
  93             {
  94                 while (!m_mapResources[hostAddress].empty())
  95                 {
  96                     pMessage = new intptr_t[2];
  97                     pMessage[0] = RESOURCE_DISCOVER_UNINSTALL_RESOURCE;
  98                     pMessage[1] = reinterpret_cast<intptr_t> (m_mapResourceHandler[m_mapResources[hostAddress].back()]);
  99                     m_mapResources[hostAddress].pop_back();
 100                     m_pTasker->addTask(this, pMessage);
 101                 }
 102
 103                 m_mapResources.erase(hostAddress);
 104             }
 105             break;
 106
 107         case OC_STACK_VIRTUAL_DO_NOT_HANDLE:
 108             break;
 109
 110         default:
 111             break;
 112     }
 113
 114 CLEANUP:
 115     ;
 116 }
 117
 118 SSMRESULT CResourceFinder::startResourceFinder()
 119 {
 120     SSMRESULT res = SSM_E_FAIL;
 121     OCStackResult ret = OC_STACK_ERROR;
 122
 123     std::ostringstream requestURI;
 124     requestURI << OC_WELL_KNOWN_QUERY << "?rt=SoftSensorManager.Sensor";
 125
 126     ret = OC::OCPlatform::findResource("", requestURI.str(), OC_WIFI,
 127                                        std::bind(&CResourceFinder::onResourceFound, this, std::placeholders::_1));
 128
 129     if (ret != OC_STACK_OK)
 130         SSM_CLEANUP_ASSERT(SSM_E_FAIL);
 131
 132     ret = OC::OCPlatform::subscribePresence(m_multicastPresenceHandle, OC_MULTICAST_IP,
 133                                             "SoftSensorManager.Sensor", OC_WIFI, std::bind(&CResourceFinder::presenceHandler, this,
 134                                                     std::placeholders::_1, std::placeholders::_2, std::placeholders::_3));
 135
 136     if (ret != OC_STACK_OK)
 137         SSM_CLEANUP_ASSERT(SSM_E_FAIL);
 138
 139     res = SSM_S_OK;
 140
 141 CLEANUP:
 142     return res;
 143 }
 144
 145 SSMRESULT CResourceFinder::stopResourceFinder()
 146 {
 147     SSMRESULT res = SSM_E_FAIL;
 148     OCStackResult ret = OC_STACK_ERROR;
 149
 150     ret = OC::OCPlatform::unsubscribePresence(m_multicastPresenceHandle);
 151
 152     if (ret != OC_STACK_OK)
 153         SSM_CLEANUP_ASSERT(SSM_E_FAIL);
 154
 155     m_multicastPresenceHandle = nullptr;
 156
 157     res = SSM_S_OK;
 158
 159 CLEANUP:
 160     return res;
 161 }
 162
 163 SSMRESULT CResourceFinder::startObserveResource(IN ISSMResource *pSensor, IN IEvent *pEvent)
 164 {
 165     return m_mapResourceHandler[pSensor->name]->startObserve(pEvent);
 166 }
 167
 168 SSMRESULT CResourceFinder::stopObserveResource(IN ISSMResource *pSensor)
 169 {
 170     return m_mapResourceHandler[pSensor->name]->stopObserve();
 171 }
 172
 173 void CResourceFinder::onExecute(IN void *pArg)
 174 {
 175     SSMRESULT res = SSM_E_FAIL;
 176     OCStackResult ret = OC_STACK_ERROR;
 177     OC::QueryParamsMap queryParams;
 178     OICResourceHandler *pResourceHandler = NULL;
 179     intptr_t                 *pMessage = reinterpret_cast<intptr_t *>(pArg);
 180     std::shared_ptr< OC::OCResource > *pResource = NULL;
 181     OC::OCPlatform::OCPresenceHandle presenceHandle = NULL;
 182
 183     std::string resourceHostAddress = "";
 184     std::string resourceFullPath = "";
 185
 186     switch (pMessage[0])
 187     {
 188         case RESOURCE_DISCOVER_REQUESTPROFILE:
 189             pResource = (std::shared_ptr< OC::OCResource > *) pMessage[1];
 190             pResourceHandler = new OICResourceHandler();
 191             SSM_CLEANUP_ASSERT(pResourceHandler->initHandler(*pResource, this));
 192
 193             resourceFullPath = pResource->get()->host() + pResource->get()->uri();
 194
 195             resourceHostAddress = pResource->get()->host();
 196             resourceHostAddress.erase(0, 7);        // erase 'coap://'
 197
 198             m_mapResourceHandler[resourceFullPath] = pResourceHandler;
 199
 200             m_mapResources[resourceHostAddress].push_back(resourceFullPath);
 201
 202             ret = pResource->get()->get(queryParams, std::bind(&OICResourceHandler::onGetResourceProfile,
 203                                         pResourceHandler, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3));
 204
 205             if (ret != OC_STACK_OK)
 206                 SSM_CLEANUP_ASSERT(SSM_E_FAIL);
 207
 208             break;
 209
 210         case RESOURCE_DISCOVER_INSTALL_RESOURCE:
 211             if (m_mapResourcePresenceHandles.find(((ISSMResource *)pMessage[1])->ip) ==
 212                 m_mapResourcePresenceHandles.end())
 213             {
 214                 ret = OC::OCPlatform::subscribePresence(presenceHandle, ((ISSMResource *)pMessage[1])->ip,
 215                                                         "SoftSensorManager.Sensor", OC_WIFI, std::bind(&CResourceFinder::presenceHandler, this,
 216                                                                 std::placeholders::_1, std::placeholders::_2, std::placeholders::_3));
 217
 218                 if (ret != OC_STACK_OK)
 219                     SSM_CLEANUP_ASSERT(SSM_E_FAIL);
 220
 221                 m_mapResourcePresenceHandles[((ISSMResource *)pMessage[1])->ip] = presenceHandle;
 222             }
 223
 224             m_pResourceFinderEvent->onResourceFound((ISSMResource *) pMessage[1]);
 225             break;
 226
 227         case RESOURCE_DISCOVER_UNINSTALL_RESOURCE:
 228             m_pResourceFinderEvent->onResourceLost(&((OICResourceHandler *) pMessage[1])->m_SSMResource);
 229
 230             if (m_mapResourcePresenceHandles.find(((OICResourceHandler *)pMessage[1])->m_SSMResource.ip) !=
 231                 m_mapResourcePresenceHandles.end())
 232             {
 233                 ret = OC::OCPlatform::unsubscribePresence(m_mapResourcePresenceHandles[((
 234                             OICResourceHandler *)pMessage[1])->m_SSMResource.ip]);
 235
 236                 if (ret != OC_STACK_OK)
 237                     SSM_CLEANUP_ASSERT(SSM_E_FAIL);
 238
 239                 m_mapResourcePresenceHandles.erase(((OICResourceHandler *)pMessage[1])->m_SSMResource.ip);
 240             }
 241
 242             delete m_mapResourceHandler[((OICResourceHandler *)pMessage[1])->m_SSMResource.name];
 243             m_mapResourceHandler.erase(((OICResourceHandler *) pMessage[1])->m_SSMResource.name);
 244             break;
 245     }
 246
 247 CLEANUP:
 248     ;
 249 }
 250
 251 void CResourceFinder::onTerminate(IN void *pArg)
 252 {
 253     std::shared_ptr< OC::OCResource > *pResource = NULL;
 254     intptr_t *pMessage = (intptr_t *)pArg;
 255
 256     switch (pMessage[0])
 257     {
 258         case RESOURCE_DISCOVER_REQUESTPROFILE:
 259             pResource = (std::shared_ptr< OC::OCResource > *) pMessage[1];
 260             delete pResource;
 261             break;
 262
 263         case RESOURCE_DISCOVER_INSTALL_RESOURCE:
 264             break;
 265
 266         case RESOURCE_DISCOVER_UNINSTALL_RESOURCE:
 267             break;
 268     }
 269
 270     delete[] pMessage;
 271 }