aboutsummaryrefslogtreecommitdiffstats
path: root/ucs2-lib/doc/html/search/variables_73.js
diff options
context:
space:
mode:
authorSebastien Douheret <sebastien.douheret@iot.bzh>2017-06-29 10:10:45 +0200
committerSebastien Douheret <sebastien.douheret@iot.bzh>2017-06-29 10:13:40 +0200
commita57c0b35c05c84f31ec09d3ac46b298555aa0cfb (patch)
tree527b826d58aefb5d6809f66679cd8e6e64cd2095 /ucs2-lib/doc/html/search/variables_73.js
parentd5e93a474b94cb7a658042e2a129f4f3e69d1b65 (diff)
Use latest version of conf.d/templates submodule.
Changes of conf.d/templates: > Fix: idem... > Fix: Debian things triggered even when use the SDK > Merge "Add pkg-config for deb packaging" > Fix: wrong variable expands at configure_file time > Comments and README update > Autobuild scripts directory execution proof > Use variable to handle autobuild target directory > Fix: Debian detection, only valid in native env > Move variable definition to the right place. > change path etc/config.cmake to conf.d/cmake/config.cmake Signed-off-by: Sebastien Douheret <sebastien.douheret@iot.bzh>
Diffstat (limited to 'ucs2-lib/doc/html/search/variables_73.js')
0 files changed, 0 insertions, 0 deletions
'n148' href='#n148'>148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 
/*
 * Copyright (C) 2015, 2016 "IoT.bzh"
 * Author "Romain Forlot" <romain.forlot@iot.bzh>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *	http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
*/

#include <uuid.h>
#include <string.h>
#include <fnmatch.h>

#include "clientApp.hpp"

extern "C" void searchNsetSignalValueHandle(const char* aName, uint64_t timestamp, json_object* value)
{
	std::vector<std::shared_ptr<Signal>> signals = Composer::instance().searchSignals(aName);
	if(!signals.empty())
	{
		for(auto& sig: signals)
			{sig->set(timestamp, value);}
	}
}

extern "C" void setSignalValueHandle(void* aSignal, uint64_t timestamp, json_object* value)
{
	Signal* sig = static_cast<Signal*>(aSignal);
	sig->set(timestamp, value);
}

bool startsWith(const std::string& str, const std::string& pattern)
{
	size_t sep;
	if( (sep = str.find(pattern)) != std::string::npos && !sep)
		{return true;}
	return false;
}

void extractString(void* closure, json_object* object)
{
	std::vector<std::string> *files = (std::vector<std::string>*) closure;
	const char *oneFile = json_object_get_string(object);

	files->push_back(oneFile);
}

// aSignal member value will be initialized in sourceAPI->addSignal()
static struct signalCBT pluginHandle = {
	.searchNsetSignalValue = searchNsetSignalValueHandle,
	.setSignalValue = setSignalValueHandle,
	.aSignal = nullptr,
	.pluginCtx = nullptr,
};

CtlSectionT Composer::ctlSections_[] = {
	[0]={.key="plugins" , .uid="plugins", .info=nullptr, .prefix=nullptr,
		.loadCB=PluginConfig,
		.handle=&pluginHandle,
		.actions=nullptr},
	[1]={.key="sources" , .uid="sources", .info=nullptr, .prefix=nullptr,
		 .loadCB=loadSourcesAPI,
		 .handle=nullptr,
		 .actions=nullptr},
	[2]={.key="signals" , .uid="signals", .info=nullptr, .prefix=nullptr,
		 .loadCB=loadSignals,
		 .handle=nullptr,
		 .actions=nullptr},
	[3]={.key=nullptr, .uid=nullptr, .info=nullptr, .prefix=nullptr,
		 .loadCB=nullptr,
		 .handle=nullptr,
		 .actions=nullptr}
};

///////////////////////////////////////////////////////////////////////////////
//                             PRIVATE METHODS                               //
///////////////////////////////////////////////////////////////////////////////

Composer::Composer()
{}

Composer::~Composer()
{
	// This will free onReceived_ action member from signal objects
	// Not the best to have it occurs here instead of in Signal destructor
	for(auto& j: ctlActionsJ_)
	{
		if(j) json_object_put(j);
	}
	if (ctlConfig_->configJ) json_object_put(ctlConfig_->configJ);
	if (ctlConfig_->requireJ)json_object_put(ctlConfig_->requireJ);
	free(ctlConfig_);
}

CtlActionT* Composer::convert2Action(const std::string& name, json_object* actionJ)
{
	CtlActionT *ctlAction = new CtlActionT;

	json_object_object_add(actionJ, "uid", json_object_new_string(name.c_str()));

	if(! ActionLoadOne(nullptr, ctlAction, actionJ, 0))
		{return ctlAction;}
	delete(ctlAction);
	return nullptr;
}

int Composer::loadOneSourceAPI(json_object* sourceJ)
{
	json_object *initJ = nullptr,
				*getSignalsJ = nullptr,
				*onReceivedJ = nullptr;
	CtlActionT  *initCtl = nullptr,
				*getSignalsCtl = nullptr,
				*onReceivedCtl = nullptr;
	const char *uid, *api, *info;
	int retention = 0;

	int err = wrap_json_unpack(sourceJ, "{ss,s?s,s?o,s?o,s?o,s?i,s?o !}",
			"uid", &uid,
			"api", &api,
			"info", &info,
			"init", &initJ,
			"getSignals", &getSignalsJ,
			// Signals field to make signals conf by sources
			"onReceived", &onReceivedJ,
			"retention", &retention);
	if (err)
	{
		AFB_ERROR("Missing something api|[info]|[init]|[getSignals] in %s", json_object_get_string(sourceJ));
		return err;
	}

	// Checking duplicate entry and ignore if so
	for(auto& src: sourcesListV_)
	{
		if(*src == uid)
		{
			json_object_put(sourceJ);
			return 0;
		}
	}

	if(ctlConfig_ && ctlConfig_->requireJ)
	{
		const char* requireS = json_object_to_json_string(ctlConfig_->requireJ);
		if(!strcasestr(requireS, api) && !strcasestr(api, afbBindingV2.api))
			{AFB_WARNING("Caution! You don't specify the API source as required in the metadata section. This API '%s' may not be initialized", api);}
	}

	initCtl = initJ ? convert2Action("init", initJ) : nullptr;

	// Define default action to take to subscibe souce's signals if none
	// defined.
	if(!getSignalsJ)
	{
		getSignalsJ = json_object_new_object();
		std::string uri = "api://" + std::string(api);
		std::string function = "subscribe";
		json_object_object_add(getSignalsJ, "uri", json_object_new_string(uri.c_str()));
		json_object_object_add(getSignalsJ, "function", json_object_new_string(function.c_str()));
	}
	getSignalsCtl = convert2Action("getSignals", getSignalsJ);

	onReceivedCtl = onReceivedJ ? convert2Action("onReceived", onReceivedJ) : nullptr;

	newSourcesListV_.push_back(std::make_shared<SourceAPI>(uid, api, info, initCtl, getSignalsCtl, onReceivedCtl, retention));
	return err;
}

int Composer::loadSourcesAPI(AFB_ApiT apihandle, CtlSectionT* section, json_object *sourcesJ)
{
	int err = 0;
	Composer& composer = instance();

	if(sourcesJ)
	{
		std::size_t count = 1;
		json_object *sigCompJ = nullptr;
		// add the signal composer itself as source
		wrap_json_pack(&sigCompJ, "{ss,ss,ss}",
		"uid", "Signal-Composer-service",
		"api", afbBindingV2.api,
		"info", "Api on behalf the virtual signals are sent");

		if(json_object_is_type(sourcesJ, json_type_array))
			json_object_array_add(sourcesJ, sigCompJ);

		if (json_object_get_type(sourcesJ) == json_type_array)
		{
			count = json_object_array_length(sourcesJ);

			for (int idx = 0; idx < count; idx++)
			{
				json_object *sourceJ = json_object_array_get_idx(sourcesJ, idx);
				err = composer.loadOneSourceAPI(sourceJ);
				if (err) return err;
			}
		}
		else
		{
			if ((err = composer.loadOneSourceAPI(sourcesJ))) return err;
			if (sigCompJ && (err = composer.loadOneSourceAPI(sigCompJ))) return err;
		}
		AFB_NOTICE("%ld new sources added to service", count);
	}
	else
		{Composer::instance().initSourcesAPI();}

	return err;
}

int Composer::loadOneSignal(json_object* signalJ)
{
	json_object *onReceivedJ = nullptr,
		    *dependsJ = nullptr,
		    *metadataJ = nullptr,
		    *getSignalsArgs = nullptr;
	CtlActionT* onReceivedCtl;
	const char *id = nullptr,
			   *event = nullptr,
			   *unit = nullptr;
	int retention = 0;
	double frequency=0.0;
	std::vector<std::string> dependsV;
	ssize_t sep;
	std::shared_ptr<SourceAPI> src = nullptr;

	int err = wrap_json_unpack(signalJ, "{ss,s?s,s?o,s?o,s?i,s?s,s?o,s?F,s?o !}",
			"uid", &id,
			"event", &event,
			"depends", &dependsJ,
			"getSignalsArgs", &getSignalsArgs,
			"retention", &retention,
			"unit", &unit,
			"metadata", &metadataJ,
			"frequency", &frequency,
			"onReceived", &onReceivedJ);
	if (err)
	{
		AFB_ERROR("Missing something uid|[event|depends]|[getSignalsArgs]|[retention]|[unit]|[frequency]|[onReceived] in %s", json_object_get_string(signalJ));
		return err;
	}

	// event or depends field manadatory
	if( (!event && !dependsJ) || (event && dependsJ) )
	{
		AFB_ERROR("Missing something uid|[event|depends]|[getSignalsArgs]|[retention]|[unit]|[frequency]|[onReceived] in %s. Or you declare event AND depends, only one of them is needed.", json_object_get_string(signalJ));
		return -1;
	}

	// Declare a raw signal
	if(event)
	{
		std::string eventStr = std::string(event);
		if( (sep = eventStr.find("/")) == std::string::npos)
		{
			AFB_ERROR("Missing something in event declaration. Has to be like: <api>/<event>");
			return -1;
		}
		std::string api = eventStr.substr(0, sep);
		src = getSourceAPI(api);
	}
	else
	{
		event = "";
	}
	// Process depends JSON object to declare virtual signal dependencies
	if (dependsJ)
	{
		if(json_object_get_type(dependsJ) == json_type_array)
		{
			std::size_t count = json_object_array_length(dependsJ);
			for(int i = 0; i < count; i++)
			{
				std::string sourceStr = json_object_get_string(json_object_array_get_idx(dependsJ, i));
				if( (sep = sourceStr.find("/")) != std::string::npos)
				{
					AFB_ERROR("Signal composition needs to use signal 'id', don't use full low level signal name");
					return -1;
				}
				dependsV.push_back(sourceStr);
			}
		}
		else
		{
			std::string sourceStr = json_object_get_string(dependsJ);
			if( (sep = sourceStr.find("/")) != std::string::npos)
			{
				AFB_ERROR("Signal composition needs to use signal 'id', don't use full low level signal name");
				return -1;
			}
			dependsV.push_back(sourceStr);
		}
		if(!src) {
			if (!sourcesListV_.empty())
				src = *sourcesListV_.rbegin();
			else if (!newSourcesListV_.empty())
				src = *newSourcesListV_.rbegin();
			else
			{
				AFB_WARNING("Signal '%s' not correctly attached to its source. Abort this one", json_object_to_json_string(signalJ));
				return -1;
			}
		}
	}

	// Set default retention if not specified
	if(!retention)
	{
		retention = src->signalsDefault().retention ?
			src->signalsDefault().retention :
			30;
	}
	unit = !unit ? "" : unit;

	// Set default onReceived action if not specified
	char uid[CONTROL_MAXPATH_LEN] = "onReceived_";
	strncat(uid, id, strlen(id));

	if(!onReceivedJ)
	{
		onReceivedCtl = src->signalsDefault().onReceived ?
			src->signalsDefault().onReceived :
			nullptr;
			// Overwrite uid to the signal one instead of the default
			if(onReceivedCtl)
				{onReceivedCtl->uid = uid;}
	}
	else {onReceivedCtl = convert2Action(uid, onReceivedJ);}

	if(src != nullptr)
		{src->addSignal(id, event, dependsV, retention, unit, metadataJ, frequency, onReceivedCtl, getSignalsArgs);}
	else
		{err = -1;}

	return err;
}

int Composer::loadSignals(AFB_ApiT apihandle, CtlSectionT* section, json_object *signalsJ)
{
	int err = 0;
	Composer& composer = instance();

	if(signalsJ)
	{
		std::size_t count = 1;
		if (json_object_get_type(signalsJ) == json_type_array)
		{
			count = json_object_array_length(signalsJ);
			for (int idx = 0; idx < count; idx++)
			{
				json_object *signalJ = json_object_array_get_idx(signalsJ, idx);
				err += composer.loadOneSignal(signalJ);
			}
		}
		else
			{err = composer.loadOneSignal(signalsJ);}
		AFB_NOTICE("%ld new signals added to service", count);
	}
	else
		{Composer::instance().initSignals();}

	return err;
}

void Composer::processOptions(const std::map<std::string, int>& opts, std::shared_ptr<Signal> sig, json_object* response) const
{
	for(const auto& o: opts)
	{
		bool avg = false, min = false, max = false, last = false;
		if (o.first.compare("average") && !avg)
		{
			avg = true;
			double value = sig->average(o.second);
			json_object_object_add(response, "value", json_object_new_double(value));
		}
		else if (o.first.compare("minimum") && !min)
		{
			min = true;
			double value = sig->minimum();
			json_object_object_add(response, "value", json_object_new_double(value));
		}
		else if (o.first.compare("maximum") && !max)
		{
			max = true;
			double value = sig->maximum();
			json_object_object_add(response, "value", json_object_new_double(value));
		}
		else if (o.first.compare("last") && !last)
		{
			last = true;
			json_object* value = sig->last_value();
			json_object_object_add(response, "value", value);
		}
		else
		{
			json_object_object_add(response, "value",
				json_object_new_string("No recorded value so far."));
		}
	}
}

///////////////////////////////////////////////////////////////////////////////
//                             PUBLIC METHODS                                //
///////////////////////////////////////////////////////////////////////////////

Composer& Composer::instance()
{
	static Composer* composer;
	if(!composer) composer = new Composer();
	return *composer;
}

void* Composer::createContext(void* ctx)
{
	uuid_t x;
	char cuid[38];
	uuid_generate(x);
	uuid_unparse(x, cuid);
	clientAppCtx* ret = new clientAppCtx(cuid);

	return (void*)ret;
}

void Composer::destroyContext(void* ctx)
{
	delete(reinterpret_cast<clientAppCtx*>(ctx));
}

int Composer::loadConfig(std::string& filepath)
{
	const char *dirList= getenv("CONTROL_CONFIG_PATH");
	if (!dirList) dirList=CONTROL_CONFIG_PATH;
	filepath.append(":");
	filepath.append(dirList);
	const char *configPath = CtlConfigSearch(nullptr, filepath.c_str(), "control");

	if (!configPath) {
		AFB_ApiError(apiHandle, "CtlPreInit: No control-* config found invalid JSON %s ", filepath.c_str());
		return -1;
	}

	// create one API per file
	ctlConfig_ = CtlLoadMetaData(nullptr, configPath);
	if (!ctlConfig_) {
		AFB_ApiError(apiHandle, "CtrlPreInit No valid control config file in:\n-- %s", configPath);
		return -1;
	}

	if (ctlConfig_->api) {
		int err = afb_daemon_rename_api(ctlConfig_->api);
		if (err) {
			AFB_ApiError(apiHandle, "Fail to rename api to:%s", ctlConfig_->api);
			return -1;
		}
	}

	int err= CtlLoadSections(nullptr, ctlConfig_, ctlSections_);
	return err;
}

int Composer::loadSources(json_object* sourcesJ)
{
	int err = loadSourcesAPI(nullptr, nullptr, sourcesJ);
	if(err)
	{
		AFB_ERROR("Loading sources failed. JSON: %s", json_object_to_json_string(sourcesJ));
		return err;
	}
	initSourcesAPI();
	return err;
}

int Composer::loadSignals(json_object* signalsJ)
{
	return loadSignals(nullptr, nullptr, signalsJ);
}

CtlConfigT* Composer::ctlConfig()
{
	return ctlConfig_;
}

void Composer::initSourcesAPI()
{
	size_t toInitialize = newSourcesListV_.size();
	for(int i=0; i < toInitialize; i++)
	{
		std::shared_ptr<SourceAPI> src = newSourcesListV_.back();
		newSourcesListV_.pop_back();
		src->init();
		sourcesListV_.push_back(src);
	}
}

void Composer::initSignals()
{
	for(int i=0; i < sourcesListV_.size(); i++)
	{
		std::shared_ptr<SourceAPI> src = sourcesListV_[i];
		src->initSignals();
	}
	execSignalsSubscription();
}

std::shared_ptr<SourceAPI> Composer::getSourceAPI(const std::string& api)
{
	for(auto& source: sourcesListV_)
	{
		if (source->api() == api)
			{return source;}
	}
	for(auto& source: newSourcesListV_)
	{
		if (source->api() == api)
			{return source;}
	}
	return nullptr;
}

std::vector<std::shared_ptr<Signal>> Composer::getAllSignals()
{
	std::vector<std::shared_ptr<Signal>> allSignals;
	for( auto& source : sourcesListV_)
	{
		std::vector<std::shared_ptr<Signal>> srcSignals = source->getSignals();
		allSignals.insert(allSignals.end(), srcSignals.begin(), srcSignals.end());
	}

	return allSignals;
}

std::vector<std::shared_ptr<Signal>> Composer::searchSignals(const std::string& aName)
{
	std::string api;
	std::vector<std::shared_ptr<Signal>> signals;
	size_t sep = aName.find_first_of("/");
	if(sep != std::string::npos)
	{
		api = aName.substr(0, sep);
		std::string signal_id = aName.substr(sep + 1, std::string::npos);
		std::shared_ptr<SourceAPI> source = getSourceAPI(api);
		return source->searchSignals(signal_id);
	}
	else
	{
		std::vector<std::shared_ptr<Signal>> allSignals = getAllSignals();
		for (std::shared_ptr<Signal>& sig : allSignals)
		{
			if(*sig == aName)
				{signals.emplace_back(sig);}
		}
	}
	return signals;
}

json_object* Composer::getsignalValue(const std::string& sig, json_object* options)
{
	std::map<std::string, int> opts;
	json_object *response = nullptr, *finalResponse = json_object_new_array();

	wrap_json_unpack(options, "{s?i, s?i, s?i, s?i !}",
		"average", &opts["average"],
		"minimum", &opts["minimum"],
		"maximum", &opts["maximum"],
		"last", &opts["last"]);

	std::vector<std::shared_ptr<Signal>> sigP = searchSignals(sig);
	if(!sigP.empty())
	{
		for(auto& sig: sigP)
		{
			wrap_json_pack(&response, "{ss}",
				"signal", sig->id().c_str());
			if (opts.empty())
			{
				json_object* value = sig->last_value();
				json_object_object_add(response, "value", value);
			}
			else
				{processOptions(opts, sig, response);}
			json_object_array_add(finalResponse, response);
		}
	}

	return finalResponse;
}

void Composer::execSignalsSubscription()
{
	for(std::shared_ptr<SourceAPI> srcAPI: sourcesListV_)
	{
		if (srcAPI->api() != std::string(ctlConfig_->api))
		{
			srcAPI->makeSubscription();
		}
	}
}