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

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   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.
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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     if(callback == NULL)
 201     {
 202         return OC_STACK_ERROR;
 203     }
 204
 205     std::sort(resourceTypes.begin(), resourceTypes.end());
 206     resourceTypes.erase(std::unique(resourceTypes.begin(), resourceTypes.end()),
 207             resourceTypes.end());
 208
 209     if (waitsec >= 0)
 210     {
 211         candidateRequestForTimer.insert(std::make_pair(resourceTypes, callback));
 212     }
 213     else
 214     {
 215         candidateRequest.insert(std::make_pair(resourceTypes, callback));
 216     }
 217
 218     for (unsigned int i = 0; i < resourceTypes.size(); ++i)
 219     {
 220         std::cout << "resourceTypes : " << resourceTypes.at(i) << std::endl;
 221         std::string query = "coap://224.0.1.187/oc/core?rt=";
 222         query.append(resourceTypes.at(i));
 223         OCPlatform::findResource("", query.c_str(),
 224                 std::function < void(std::shared_ptr < OCResource > resource)
 225                         > (std::bind(&GroupManager::onFoundResource, this,
 226                                 std::placeholders::_1, waitsec)));
 227     }
 228
 229     if (waitsec >= 0)
 230     {
 231         std::thread exec(
 232                 std::function< void(int second) >(
 233                         std::bind(&GroupManager::lazyCallback, this, std::placeholders::_1)),
 234                 waitsec);
 235         exec.detach();
 236     }
 237
 238     return OC_STACK_OK;
 239 }
 240
 241 /*
 242  Presence Check
 243  */
 244
 245 std::map< std::string, CollectionPresenceCallback > presenceCallbacks;
 246
 247 // Callback to presence
 248 void GroupManager::collectionPresenceHandler(OCStackResult result, const unsigned int nonce,
 249         const std::string& hostAddress, std::string host, std::string uri)
 250 {
 251     std::cout << "uri : " << uri << std::endl;
 252     std::cout << "host : " << host << std::endl;
 253     std::cout << "result : " << result << std::endl;
 254     switch (result)
 255     {
 256         case OC_STACK_OK:
 257             std::cout << "Nonce# " << nonce << std::endl;
 258             break;
 259         case OC_STACK_PRESENCE_STOPPED:
 260             std::cout << "Presence Stopped\n";
 261             break;
 262         case OC_STACK_PRESENCE_DO_NOT_HANDLE:
 263             std::cout << "Presence do not handle\n";
 264             break;
 265         case OC_STACK_PRESENCE_TIMEOUT:
 266             std::cout << "Presence TIMEOUT\n";
 267             break;
 268         default:
 269             std::cout << "Error\n";
 270             break;
 271     }
 272
 273     if (presenceCallbacks.find(uri) != presenceCallbacks.end())
 274     {
 275         (presenceCallbacks.find(uri)->second)(uri, result);
 276     }
 277 }
 278
 279 void GroupManager::checkCollectionRepresentation(const OCRepresentation& rep,
 280         CollectionPresenceCallback callback)
 281 {
 282     std::cout << "\tResource URI: " << rep.getUri() << std::endl;
 283
 284     /* //bug not found
 285      if(rep.hasAttribute("name"))
 286      {
 287      std::cout << "\tRoom name: " << rep.getValue<std::string>("name") << std::endl;
 288      }
 289      */
 290     std::vector< OCRepresentation > children = rep.getChildren();
 291
 292     if(children.size() == 0 )
 293     {
 294         callback("", OC_STACK_ERROR);
 295         return;
 296     }
 297
 298     for (auto oit = children.begin(); oit != children.end(); ++oit)
 299     {
 300         std::cout << "\t\tChild Resource URI: " << oit->getUri() << std::endl;
 301         std::vector< std::string > hostAddressVector = str_split(oit->getUri(), '/');
 302         std::string hostAddress = "";
 303         for (unsigned int i = 0; i < hostAddressVector.size(); ++i)
 304         {
 305             if (i < 3)
 306             {
 307                 hostAddress.append(hostAddressVector.at(i));
 308                 if (i != 2)
 309                 {
 310                     hostAddress.append("/");
 311                 }
 312             }
 313         }
 314
 315         std::vector< std::string > resourceTypes = oit->getResourceTypes();
 316         for (unsigned int i = 0; i < resourceTypes.size(); ++i)
 317         {
 318             std::cout << "\t\t\tresourcetype :" << resourceTypes.at(i) << std::endl;
 319         }
 320
 321         std::string resourceType = "core.";
 322         resourceType.append(str_split(oit->getUri(), '/').at(4));
 323         std::cout << "\t\tconvertRT : " << resourceType << std::endl;
 324         std::cout << "\t\thost : " << hostAddress << std::endl;
 325         OCPlatform::OCPresenceHandle presenceHandle;
 326         OCStackResult result = OCPlatform::subscribePresence(presenceHandle, hostAddress,
 327                 resourceType,
 328                 std::function<
 329                         void(OCStackResult result, const unsigned int nonce,
 330                                 const std::string& hostAddress) >(
 331                         std::bind(&GroupManager::collectionPresenceHandler, this,
 332                                 std::placeholders::_1, std::placeholders::_2,
 333                                 std::placeholders::_3, hostAddress, oit->getUri())));
 334
 335         if (result == OC_STACK_OK)
 336         {
 337             std::cout << "\t\tOK!" << std::endl;
 338             presenceCallbacks.insert(std::make_pair(oit->getUri(), callback));
 339         }
 340         else
 341         {
 342             callback("", OC_STACK_ERROR);
 343         }
 344
 345     }
 346 }
 347
 348 void GroupManager::onGetForPresence(const HeaderOptions& headerOptions,
 349         const OCRepresentation& rep, const int eCode, CollectionPresenceCallback callback)
 350 {
 351     if (eCode == OC_STACK_OK)
 352     {
 353         std::cout << "GET request was successful" << std::endl;
 354         std::cout << "Resource URI: " << rep.getUri() << std::endl;
 355
 356         checkCollectionRepresentation(rep, callback);
 357
 358     }
 359     else
 360     {
 361         std::cout << "onGET Response error: " << eCode << std::endl;
 362         callback("", OC_STACK_ERROR);
 363         std::exit(-1);
 364     }
 365 }
 366
 367 OCStackResult GroupManager::subscribeCollectionPresence(
 368         std::shared_ptr< OCResource > collectionResource, CollectionPresenceCallback callback)
 369 {
 370     if(callback == NULL || collectionResource == NULL)
 371     {
 372         return OC_STACK_ERROR;
 373     }
 374
 375     OCStackResult result = OC_STACK_OK;
 376     //callback("core.room",OC_STACK_OK);
 377
 378     QueryParamsMap queryParam;
 379
 380     //parameter 1 = resourceType
 381     collectionResource->get("", DEFAULT_INTERFACE, queryParam,
 382             std::function<
 383                     void(const HeaderOptions& headerOptions, const OCRepresentation& rep,
 384                             const int eCode) >(
 385                     std::bind(&GroupManager::onGetForPresence, this, std::placeholders::_1,
 386                             std::placeholders::_2, std::placeholders::_3, callback)));
 387
 388     return result;
 389 }
 390
 391 /*
 392  Group Action
 393  */
 394
 395 std::string GroupManager::getStringFromActionSet(const ActionSet *newActionSet)
 396 {
 397     std::string message = "";
 398
 399     message = newActionSet->actionsetName;
 400     message.append("*");
 401     for (auto iterAction = newActionSet->listOfAction.begin();
 402             iterAction != newActionSet->listOfAction.end(); iterAction++)
 403     {
 404         message.append("uri=");
 405         message.append((*iterAction)->target);
 406         message.append("|");
 407
 408         for (auto iterCapa = (*iterAction)->listOfCapability.begin();
 409                 iterCapa != (*iterAction)->listOfCapability.end(); iterCapa++)
 410         {
 411             message.append((*iterCapa)->capability);
 412             message.append("=");
 413             message.append((*iterCapa)->status);
 414
 415             if (iterCapa + 1 != (*iterAction)->listOfCapability.end())
 416                 message.append("|");
 417         }
 418
 419         if (iterAction + 1 != newActionSet->listOfAction.end())
 420         {
 421             message.append("*");
 422         }
 423     }
 424
 425     return message;
 426 }
 427
 428 ActionSet* GroupManager::getActionSetfromString(std::string desc)
 429 {
 430
 431     char *token = NULL;
 432     char *plainText = NULL;
 433     char *plainPtr = NULL;
 434
 435     ActionSet *actionset = new ActionSet();
 436     plainText = new char[(desc.length() + 1)];
 437     strcpy(plainText, desc.c_str());
 438
 439     token = strtok_r(plainText, ACTION_DELIMITER, &plainPtr);
 440
 441     if (token != NULL)
 442     {
 443         actionset->actionsetName = std::string(token);
 444         token = strtok_r(NULL, ACTION_DELIMITER, &plainPtr);
 445     }
 446     else
 447     {
 448         delete actionset;
 449         delete[] plainText;
 450         return NULL;
 451     }
 452
 453     while (token)
 454     {
 455         char *descPtr = NULL;
 456         char *desc = new char[(strlen(token) + 1)];
 457
 458         if (desc != NULL)
 459         {
 460             Action *action = NULL;
 461             strcpy(desc, token);
 462             token = strtok_r(desc, DESC_DELIMITER, &descPtr);
 463
 464             // cout << "desc :: " << token << endl;
 465             while (token != NULL)
 466             {
 467                 char *attrPtr = NULL;
 468                 char *attr = new char[(strlen(token) + 1)];
 469
 470                 strcpy(attr, token);
 471
 472                 // cout << "attr :: " << attr << endl;
 473
 474                 token = strtok_r(attr, ATTR_DELIMITER, &attrPtr);
 475                 while (token != NULL)
 476                 {
 477                     if (strcmp(token, "uri") == 0)
 478                     {
 479                         token = strtok_r(NULL, ATTR_DELIMITER, &attrPtr);
 480                         action = new Action();
 481
 482                         if (action != NULL)
 483                         {
 484                             action->target = std::string(token);
 485                         }
 486                         else
 487                         {
 488                             delete actionset;
 489                             delete[] attr;
 490                             delete desc;
 491                             delete[] plainText;
 492                             return NULL;
 493                         }
 494                     }
 495                     else
 496                     {
 497                         Capability *capa = new Capability();
 498                         capa->capability = std::string(token);
 499                         token = strtok_r(NULL, ATTR_DELIMITER, &attrPtr);
 500                         capa->status = std::string(token);
 501
 502                         if (action != NULL)
 503                         {
 504                             action->listOfCapability.push_back(capa);
 505                         }
 506                         else
 507                         {
 508                             delete capa;
 509                             delete actionset;
 510                             delete[] attr;
 511                             delete[] plainText;
 512                             delete desc;
 513                             return NULL;
 514                         }
 515                     }
 516
 517                     token = strtok_r(NULL, ATTR_DELIMITER, &attrPtr);
 518                 }
 519
 520                 delete[] attr;
 521                 token = strtok_r(NULL, DESC_DELIMITER, &descPtr);
 522             }
 523
 524             actionset->listOfAction.push_back(action);
 525             //delete action;
 526         }
 527         else
 528         {
 529             delete actionset;
 530             delete[] plainText;
 531             return NULL;
 532         }
 533
 534         delete[] desc;
 535
 536         token = strtok_r(NULL, ACTION_DELIMITER, &plainPtr);
 537     }
 538
 539     delete plainText;
 540     return actionset;
 541 }
 542
 543 OCStackResult GroupManager::addActionSet(std::shared_ptr< OCResource > resource,
 544         const ActionSet* newActionSet, PutCallback cb)
 545 {
 546     // BUILD message of ActionSet which it is included delimiter.
 547     if ((resource != NULL) && (newActionSet != NULL))
 548     {
 549         std::string message = getStringFromActionSet(newActionSet);
 550         OCRepresentation rep;
 551
 552         rep.setValue("ActionSet", message);
 553
 554         return resource->put(resource->getResourceTypes().front(), GROUP_INTERFACE, rep,
 555                 QueryParamsMap(), cb);
 556     }
 557     else
 558     {
 559         return OC_STACK_ERROR;
 560     }
 561 }
 562
 563 OCStackResult GroupManager::executeActionSet(std::shared_ptr< OCResource > resource,
 564         std::string actionsetName, PostCallback cb)
 565 {
 566     if (resource != NULL)
 567     {
 568         OCRepresentation rep;
 569
 570         rep.setValue("DoAction", actionsetName);
 571         return resource->post(resource->getResourceTypes().front(), GROUP_INTERFACE, rep,
 572                 QueryParamsMap(), cb);
 573     }
 574     else
 575     {
 576         return OC_STACK_ERROR;
 577     }
 578 }
 579
 580 OCStackResult GroupManager::getActionSet(std::shared_ptr< OCResource > resource,
 581         std::string actionsetName, PostCallback cb)
 582 {
 583     if (resource != NULL)
 584     {
 585         OCRepresentation rep;
 586
 587         rep.setValue("GetActionSet", actionsetName);
 588
 589         return resource->post(resource->getResourceTypes().front(), GROUP_INTERFACE, rep,
 590                 QueryParamsMap(), cb);
 591     }
 592     else
 593     {
 594         return OC_STACK_ERROR;
 595     }
 596 }
 597
 598 OCStackResult GroupManager::deleteActionSet(std::shared_ptr< OCResource > resource,
 599         std::string actionsetName, PutCallback cb)
 600 {
 601     if (resource != NULL)
 602     {
 603         OCRepresentation rep;
 604
 605         rep.setValue("DelActionSet", actionsetName);
 606
 607         return resource->put(resource->getResourceTypes().front(), GROUP_INTERFACE, rep,
 608                 QueryParamsMap(), cb);
 609     }
 610     else
 611     {
 612         return OC_STACK_ERROR;
 613     }
 614 }
 615 }