service/things-manager/sdk/src/GroupManager.cpp

   1 //******************************************************************
   2 //
   3 // Copyright 2014 Samsung Electronics All Rights Reserved.
   4 //
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   6 //
   7 // Licensed under the Apache License, Version 2.0 (the "License");
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   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 //
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  20
  21 /// @file    GroupManager.cpp
  22 ///  @brief
  23
  24 #include "GroupManager.h"
  25 #include <algorithm>
  26 #include <thread>
  27 #include <unistd.h>
  28
  29 #include <string.h>
  30
  31 #define PLAIN_DELIMITER "\""
  32 #define ACTION_DELIMITER "*"
  33 #define DESC_DELIMITER "|"
  34 #define ATTR_DELIMITER "="
  35
  36 using namespace OC;
  37
  38 namespace OIC
  39 {
  40 std::map< std::vector< std::string >, CandidateCallback > candidateRequest;
  41 std::map< std::vector< std::string >, CandidateCallback > candidateRequestForTimer;
  42 std::map< std::string, std::map< std::string, std::shared_ptr< OCResource > > > rtForResourceList;
  43 std::vector< std::string > allFoundResourceTypes;
  44
  45 template< typename T >
  46 bool IsSubset(std::vector< T > full, std::vector< T > sub)
  47 {
  48     std::sort(full.begin(), full.end());
  49     std::sort(sub.begin(), sub.end());
  50     return std::includes(full.begin(), full.end(), sub.begin(), sub.end());
  51 }
  52 std::vector< std::string > &str_split(const std::string &s, char delim,
  53         std::vector< std::string > &elems)
  54 {
  55     std::stringstream ss(s);
  56     std::string item;
  57     while (std::getline(ss, item, delim))
  58     {
  59         elems.push_back(item);
  60     }
  61     return elems;
  62 }
  63
  64 std::vector< std::string > str_split(const std::string &s, char delim)
  65 {
  66     std::vector< std::string > elems;
  67     str_split(s, delim, elems);
  68     return elems;
  69 }
  70
  71 void GroupManager::onFoundResource(std::shared_ptr< OCResource > resource, int waitsec)
  72 {
  73
  74     std::string resourceURI;
  75     std::string hostAddress;
  76     try
  77     {
  78         // Do some operations with resource object.
  79         if (resource)
  80         {
  81
  82             std::cout << "DISCOVERED Resource:" << std::endl;
  83             // Get the resource URI
  84             resourceURI = resource->uri();
  85             std::cout << "\tURI of the resource: " << resourceURI << std::endl;
  86
  87             // Get the resource host address
  88             hostAddress = resource->host();
  89             std::cout << "\tHost address of the resource: " << hostAddress << std::endl;
  90
  91             // Get the resource types
  92             std::cout << "\tList of resource types: " << std::endl;
  93
  94             hostAddress.append(resourceURI);
  95
  96             for (auto &resourceTypes : resource->getResourceTypes())
  97             {
  98                 std::cout << "\t\t" << resourceTypes << std::endl;
  99
 100                 if (std::find(allFoundResourceTypes.begin(), allFoundResourceTypes.end(),
 101                         resourceTypes) == allFoundResourceTypes.end())
 102                 {
 103                     allFoundResourceTypes.push_back(resourceTypes);
 104                 }
 105
 106                 rtForResourceList[resourceTypes][hostAddress] = resource;
 107             }
 108
 109             // Get the resource interfaces
 110             std::cout << "\tList of resource interfaces: " << std::endl;
 111             for (auto &resourceInterfaces : resource->getResourceInterfaces())
 112             {
 113                 std::cout << "\t\t" << resourceInterfaces << std::endl;
 114             }
 115
 116             if (waitsec == -1)
 117             {
 118                 findPreparedRequest(candidateRequest);
 119             }
 120         }
 121         else
 122         {
 123             // Resource is invalid
 124             std::cout << "Resource is invalid" << std::endl;
 125         }
 126
 127     }
 128     catch (std::exception& e)
 129     {
 130         //log(e.what());
 131     }
 132 }
 133
 134 GroupManager::GroupManager(void)
 135 {
 136     ;
 137 }
 138
 139 /**
 140  * Virtual destructor
 141  */
 142 GroupManager::~GroupManager(void)
 143 {
 144     candidateRequest.clear();
 145     candidateRequestForTimer.clear();
 146     rtForResourceList.clear();
 147     allFoundResourceTypes.clear();
 148 }
 149
 150 void GroupManager::findPreparedRequest(
 151         std::map< std::vector< std::string >, CandidateCallback > &request)
 152 {
 153     std::vector< std::shared_ptr< OCResource > > resources;
 154
 155     for (auto it = request.begin(); it != request.end();)
 156     {
 157
 158         if (IsSubset(allFoundResourceTypes, it->first))
 159         {
 160             //std::cout << "IS SUBSET !!! \n";
 161
 162             for (unsigned int i = 0; i < it->first.size(); ++i)
 163             {
 164
 165                 for (auto secondIt = rtForResourceList[it->first.at(i)].begin();
 166                         secondIt != rtForResourceList[it->first.at(i)].end(); ++secondIt)
 167                 {
 168                     resources.push_back(secondIt->second);
 169                 }
 170             }
 171
 172             it->second(resources);
 173
 174             //TODO : decide policy - callback only once
 175             request.erase(it++);
 176         }
 177         else
 178         {
 179             ++it;
 180         }
 181
 182     }
 183
 184 }
 185
 186 void GroupManager::lazyCallback(int second)
 187 {
 188     sleep(second);
 189     findPreparedRequest(candidateRequestForTimer);
 190
 191 }
 192
 193 OCStackResult GroupManager::findCandidateResources(std::vector< std::string > resourceTypes,
 194         CandidateCallback callback, int waitsec)
 195 {
 196     if (resourceTypes.size() < 1)
 197     {
 198         return OC_STACK_ERROR;
 199     }
 200
 201     std::sort(resourceTypes.begin(), resourceTypes.end());
 202     resourceTypes.erase(std::unique(resourceTypes.begin(), resourceTypes.end()),
 203             resourceTypes.end());
 204
 205     if (waitsec != -1)
 206     {
 207         candidateRequestForTimer.insert(std::make_pair(resourceTypes, callback));
 208     }
 209     else
 210     {
 211         candidateRequest.insert(std::make_pair(resourceTypes, callback));
 212     }
 213
 214     for (unsigned int i = 0; i < resourceTypes.size(); ++i)
 215     {
 216         std::cout << "resourceTypes : " << resourceTypes.at(i) << std::endl;
 217         std::string query = "coap://224.0.1.187/oc/core?rt=";
 218         query.append(resourceTypes.at(i));
 219         OCPlatform::findResource("", query.c_str(),
 220                 std::function < void(std::shared_ptr < OCResource > resource)
 221                         > (std::bind(&GroupManager::onFoundResource, this,
 222                                 std::placeholders::_1, waitsec)));
 223     }
 224
 225     if (waitsec != -1)
 226     {
 227         std::thread exec(
 228                 std::function< void(int second) >(
 229                         std::bind(&GroupManager::lazyCallback, this, std::placeholders::_1)),
 230                 waitsec);
 231         exec.detach();
 232     }
 233
 234     return OC_STACK_OK;
 235 }
 236
 237 /*
 238  Presence Check
 239  */
 240
 241 std::map< std::string, CollectionPresenceCallback > presenceCallbacks;
 242
 243 // Callback to presence
 244 void GroupManager::collectionPresenceHandler(OCStackResult result, const unsigned int nonce,
 245         const std::string& hostAddress, std::string host, std::string uri)
 246 {
 247     std::cout << "uri : " << uri << std::endl;
 248     std::cout << "host : " << host << std::endl;
 249     std::cout << "result : " << result << std::endl;
 250     switch (result)
 251     {
 252         case OC_STACK_OK:
 253             std::cout << "Nonce# " << nonce << std::endl;
 254             break;
 255         case OC_STACK_PRESENCE_STOPPED:
 256             std::cout << "Presence Stopped\n";
 257             break;
 258         case OC_STACK_PRESENCE_DO_NOT_HANDLE:
 259             std::cout << "Presence do not handle\n";
 260             break;
 261         case OC_STACK_PRESENCE_TIMEOUT:
 262             std::cout << "Presence TIMEOUT\n";
 263             break;
 264         default:
 265             std::cout << "Error\n";
 266             break;
 267     }
 268
 269     if (presenceCallbacks.find(uri) != presenceCallbacks.end())
 270     {
 271         (presenceCallbacks.find(uri)->second)(uri, result);
 272     }
 273 }
 274
 275 void GroupManager::checkCollectionRepresentation(const OCRepresentation& rep,
 276         CollectionPresenceCallback callback)
 277 {
 278     std::cout << "\tResource URI: " << rep.getUri() << std::endl;
 279
 280     /* //bug not found
 281      if(rep.hasAttribute("name"))
 282      {
 283      std::cout << "\tRoom name: " << rep.getValue<std::string>("name") << std::endl;
 284      }
 285      */
 286     std::vector< OCRepresentation > children = rep.getChildren();
 287
 288     for (auto oit = children.begin(); oit != children.end(); ++oit)
 289     {
 290         std::cout << "\t\tChild Resource URI: " << oit->getUri() << std::endl;
 291         std::vector< std::string > hostAddressVector = str_split(oit->getUri(), '/');
 292         std::string hostAddress = "";
 293         for (unsigned int i = 0; i < hostAddressVector.size(); ++i)
 294         {
 295             if (i < 3)
 296             {
 297                 hostAddress.append(hostAddressVector.at(i));
 298                 if (i != 2)
 299                 {
 300                     hostAddress.append("/");
 301                 }
 302             }
 303         }
 304
 305         std::vector< std::string > resourceTypes = oit->getResourceTypes();
 306         for (unsigned int i = 0; i < resourceTypes.size(); ++i)
 307         {
 308             std::cout << "\t\t\tresourcetype :" << resourceTypes.at(i) << std::endl;
 309         }
 310
 311         std::string resourceType = "core.";
 312         resourceType.append(str_split(oit->getUri(), '/').at(4));
 313         std::cout << "\t\tconvertRT : " << resourceType << std::endl;
 314         std::cout << "\t\thost : " << hostAddress << std::endl;
 315         OCPlatform::OCPresenceHandle presenceHandle;
 316         OCStackResult result = OCPlatform::subscribePresence(presenceHandle, hostAddress,
 317                 resourceType,
 318                 std::function<
 319                         void(OCStackResult result, const unsigned int nonce,
 320                                 const std::string& hostAddress) >(
 321                         std::bind(&GroupManager::collectionPresenceHandler, this,
 322                                 std::placeholders::_1, std::placeholders::_2,
 323                                 std::placeholders::_3, hostAddress, oit->getUri())));
 324
 325         if (result == OC_STACK_OK)
 326         {
 327             std::cout << "\t\tOK!" << std::endl;
 328             presenceCallbacks.insert(std::make_pair(oit->getUri(), callback));
 329         }
 330         else
 331         {
 332             callback("", OC_STACK_ERROR);
 333         }
 334
 335     }
 336 }
 337
 338 void GroupManager::onGetForPresence(const HeaderOptions& headerOptions,
 339         const OCRepresentation& rep, const int eCode, CollectionPresenceCallback callback)
 340 {
 341     if (eCode == OC_STACK_OK)
 342     {
 343         std::cout << "GET request was successful" << std::endl;
 344         std::cout << "Resource URI: " << rep.getUri() << std::endl;
 345
 346         checkCollectionRepresentation(rep, callback);
 347
 348     }
 349     else
 350     {
 351         std::cout << "onGET Response error: " << eCode << std::endl;
 352         callback("", OC_STACK_ERROR);
 353         std::exit(-1);
 354     }
 355 }
 356
 357 OCStackResult GroupManager::subscribeCollectionPresence(
 358         std::shared_ptr< OCResource > collectionResource, CollectionPresenceCallback callback)
 359 {
 360     OCStackResult result = OC_STACK_OK;
 361     //callback("core.room",OC_STACK_OK);
 362
 363     QueryParamsMap queryParam;
 364
 365     //parameter 1 = resourceType
 366     collectionResource->get("", DEFAULT_INTERFACE, queryParam,
 367             std::function<
 368                     void(const HeaderOptions& headerOptions, const OCRepresentation& rep,
 369                             const int eCode) >(
 370                     std::bind(&GroupManager::onGetForPresence, this, std::placeholders::_1,
 371                             std::placeholders::_2, std::placeholders::_3, callback)));
 372
 373     return result;
 374 }
 375
 376 /*
 377  Group Action
 378  */
 379
 380 std::string GroupManager::getStringFromActionSet(const ActionSet *newActionSet)
 381 {
 382     std::string message = "";
 383
 384     message = newActionSet->actionsetName;
 385     message.append("*");
 386     for (auto iterAction = newActionSet->listOfAction.begin();
 387             iterAction != newActionSet->listOfAction.end(); iterAction++)
 388     {
 389         message.append("uri=");
 390         message.append((*iterAction)->target);
 391         message.append("|");
 392
 393         for (auto iterCapa = (*iterAction)->listOfCapability.begin();
 394                 iterCapa != (*iterAction)->listOfCapability.end(); iterCapa++)
 395         {
 396             message.append((*iterCapa)->capability);
 397             message.append("=");
 398             message.append((*iterCapa)->status);
 399
 400             if (iterCapa + 1 != (*iterAction)->listOfCapability.end())
 401                 message.append("|");
 402         }
 403
 404         if (iterAction + 1 != newActionSet->listOfAction.end())
 405         {
 406             message.append("*");
 407         }
 408     }
 409
 410     return message;
 411 }
 412
 413 ActionSet* GroupManager::getActionSetfromString(std::string desc)
 414 {
 415
 416     char *token = NULL;
 417     char *plainText = NULL;
 418     char *plainPtr = NULL;
 419
 420     ActionSet *actionset = new ActionSet();
 421     plainText = new char[(desc.length() + 1)];
 422     strcpy(plainText, desc.c_str());
 423
 424     token = strtok_r(plainText, ACTION_DELIMITER, &plainPtr);
 425
 426     if (token != NULL)
 427     {
 428         actionset->actionsetName = std::string(token);
 429         token = strtok_r(NULL, ACTION_DELIMITER, &plainPtr);
 430     }
 431     else
 432     {
 433         delete actionset;
 434         delete[] plainText;
 435         return NULL;
 436     }
 437
 438     while (token)
 439     {
 440         char *descPtr = NULL;
 441         char *desc = new char[(strlen(token) + 1)];
 442
 443         if (desc != NULL)
 444         {
 445             Action *action = NULL;
 446             strcpy(desc, token);
 447             token = strtok_r(desc, DESC_DELIMITER, &descPtr);
 448
 449             // cout << "desc :: " << token << endl;
 450             while (token != NULL)
 451             {
 452                 char *attrPtr = NULL;
 453                 char *attr = new char[(strlen(token) + 1)];
 454
 455                 strcpy(attr, token);
 456
 457                 // cout << "attr :: " << attr << endl;
 458
 459                 token = strtok_r(attr, ATTR_DELIMITER, &attrPtr);
 460                 while (token != NULL)
 461                 {
 462                     if (strcmp(token, "uri") == 0)
 463                     {
 464                         token = strtok_r(NULL, ATTR_DELIMITER, &attrPtr);
 465                         action = new Action();
 466
 467                         if (action != NULL)
 468                         {
 469                             action->target = std::string(token);
 470                         }
 471                         else
 472                         {
 473                             delete actionset;
 474                             delete[] attr;
 475                             delete desc;
 476                             delete[] plainText;
 477                             return NULL;
 478                         }
 479                     }
 480                     else
 481                     {
 482                         Capability *capa = new Capability();
 483                         capa->capability = std::string(token);
 484                         token = strtok_r(NULL, ATTR_DELIMITER, &attrPtr);
 485                         capa->status = std::string(token);
 486
 487                         if (action != NULL)
 488                         {
 489                             action->listOfCapability.push_back(capa);
 490                         }
 491                         else
 492                         {
 493                             delete capa;
 494                             delete actionset;
 495                             delete[] attr;
 496                             delete[] plainText;
 497                             delete desc;
 498                             return NULL;
 499                         }
 500                     }
 501
 502                     token = strtok_r(NULL, ATTR_DELIMITER, &attrPtr);
 503                 }
 504
 505                 delete[] attr;
 506                 token = strtok_r(NULL, DESC_DELIMITER, &descPtr);
 507             }
 508
 509             actionset->listOfAction.push_back(action);
 510             //delete action;
 511         }
 512         else
 513         {
 514             delete actionset;
 515             delete[] plainText;
 516             return NULL;
 517         }
 518
 519         delete[] desc;
 520
 521         token = strtok_r(NULL, ACTION_DELIMITER, &plainPtr);
 522     }
 523
 524     delete plainText;
 525     return actionset;
 526 }
 527
 528 OCStackResult GroupManager::addActionSet(std::shared_ptr< OCResource > resource,
 529         const ActionSet* newActionSet, PutCallback cb)
 530 {
 531     // BUILD message of ActionSet which it is included delimiter.
 532     if ((resource != NULL) && (newActionSet != NULL))
 533     {
 534         std::string message = getStringFromActionSet(newActionSet);
 535         OCRepresentation rep;
 536
 537         rep.setValue("ActionSet", message);
 538
 539         return resource->put(resource->getResourceTypes().front(), GROUP_INTERFACE, rep,
 540                 QueryParamsMap(), cb);
 541     }
 542     else
 543     {
 544         return OC_STACK_ERROR;
 545     }
 546 }
 547
 548 OCStackResult GroupManager::executeActionSet(std::shared_ptr< OCResource > resource,
 549         std::string actionsetName, PostCallback cb)
 550 {
 551     if (resource != NULL)
 552     {
 553         OCRepresentation rep;
 554
 555         rep.setValue("DoAction", actionsetName);
 556         return resource->post(resource->getResourceTypes().front(), GROUP_INTERFACE, rep,
 557                 QueryParamsMap(), cb);
 558     }
 559     else
 560     {
 561         return OC_STACK_ERROR;
 562     }
 563 }
 564
 565 OCStackResult GroupManager::getActionSet(std::shared_ptr< OCResource > resource,
 566         std::string actionsetName, PostCallback cb)
 567 {
 568     if (resource != NULL)
 569     {
 570         OCRepresentation rep;
 571
 572         rep.setValue("GetActionSet", actionsetName);
 573
 574         return resource->post(resource->getResourceTypes().front(), GROUP_INTERFACE, rep,
 575                 QueryParamsMap(), cb);
 576     }
 577     else
 578     {
 579         return OC_STACK_ERROR;
 580     }
 581 }
 582
 583 OCStackResult GroupManager::deleteActionSet(std::shared_ptr< OCResource > resource,
 584         std::string actionsetName, PutCallback cb)
 585 {
 586     if (resource != NULL)
 587     {
 588         OCRepresentation rep;
 589
 590         rep.setValue("DelActionSet", actionsetName);
 591
 592         return resource->put(resource->getResourceTypes().front(), GROUP_INTERFACE, rep,
 593                 QueryParamsMap(), cb);
 594     }
 595     else
 596     {
 597         return OC_STACK_ERROR;
 598     }
 599 }
 600 }