Bugfixes

- Textual MQTT topics working in dcdbpusher and data analytics framework
- REST API still not working properly
- Testing on the collectagent not performed yet

Makefile

@@ -246,13 +246,13 @@ $(DCDBDEPSPATH)/freeipmi-$(FREEIPMI_VERSION)/.installed: $(DCDBDEPSPATH)/freeipm
 $(DCDBDEPSPATH)/net-snmp-$(NET-SNMP_VERSION)/.built: $(DCDBDEPSPATH)/net-snmp-$(NET-SNMP_VERSION)/.patched
 	@echo ""
 	@echo "Building net-SNMP library..."
-	cd $(@D) && ./configure --prefix=$(DCDBDEPLOYPATH) --with-default-snmp-version=3 --with-defaults --with-logfile=none --with-persistent-directory=$(DCDBDEPLOYPATH)/var/net-snmp --disable-embedded-perl --disable-perl-cc-checks --without-perl-modules --disable-agent --disable-applications --disable-manuals --disable-scripts --disable-mibs
-	cd $(@D) && make -j $(MAKETHREADS) && touch $(@)
+	#cd $(@D) && ./configure --prefix=$(DCDBDEPLOYPATH) --with-default-snmp-version=3 --with-defaults --with-logfile=none --with-persistent-directory=$(DCDBDEPLOYPATH)/var/net-snmp --disable-embedded-perl --disable-perl-cc-checks --without-perl-modules --disable-agent --disable-applications --disable-manuals --disable-scripts --disable-mibs
+	#cd $(@D) && make -j $(MAKETHREADS) && touch $(@)
 
 $(DCDBDEPSPATH)/net-snmp-$(NET-SNMP_VERSION)/.installed: $(DCDBDEPSPATH)/net-snmp-$(NET-SNMP_VERSION)/.built | $(DCDBDEPLOYPATH)
 	@echo ""
 	@echo "Installing net-SNMP library..."
-	cd $(@D) && make install && touch $(@)
+	#cd $(@D) && make install && touch $(@)
 	
 %-build: deps 
 	@echo "Building $*"

analytics/includes/AnalyzerConfiguratorTemplate.h

@@ -51,10 +51,7 @@ protected:
     const string OUTPUT_BLOCK = "output";
     const string ALL_CLAUSE = "all";
     const string ALL_REC_CLAUSE = "all-recursive";
-
-    const std::string SENSOR_PATTERN = "(?i)<sensor>";
-    const std::string GROUP_PATTERN = "(?i)<group>";
-
+    
 public:
 
     /**
@@ -66,7 +63,6 @@ public:
             _baseName("INVALID"),
             _cfgPath(""),
             _mqttPrefix(""),
-            _sensorPattern(""),
             _cacheInterval(900000) {}
 
     /**
@@ -105,7 +101,6 @@ public:
     */
     virtual void setGlobalSettings(const pluginSettings_t& pluginSettings) final {
         _mqttPrefix = pluginSettings.mqttPrefix;
-        _sensorPattern = pluginSettings.sensorPattern;
         _cacheInterval = pluginSettings.cacheInterval;
     }
 
@@ -117,7 +112,6 @@ public:
     void printConfig(LOG_LEVEL ll) final {
         LOG_VAR(ll) << "    General: ";
         LOG_VAR(ll) << "          MQTT-Prefix:    " << (_mqttPrefix != "" ? _mqttPrefix : "DEFAULT");
-        LOG_VAR(ll) << "          Sensor Pattern: " << (_sensorPattern != "" ? _sensorPattern : "DEFAULT");
         LOG_VAR(ll) << "          Cache interval: " << _cacheInterval << " ms";
 
         //prints plugin specific configurator attributes and entities if present
@@ -402,7 +396,9 @@ protected:
         if(!an.getTemplate()) {
             vector <shared_ptr<UnitTemplate<SBase>>> *units = NULL;
             try {
-                units = _unitGen.generateUnits(protoInputs, protoOutputs, inputMode, _mqttPrefix + an.getMqttPart(), !an.getStreaming());
+                units = _unitGen.generateUnits(protoInputs, protoOutputs, inputMode, 
+                        MQTTChecker::formatTopic(_mqttPrefix) + MQTTChecker::formatTopic(an.getMqttPart()), 
+                        !an.getStreaming());
             }
             catch (const std::exception &e) {
                 LOG(error) << _analyzerName << " " << an.getName() << ": Error when creating units: " << e.what();
@@ -411,7 +407,7 @@ protected:
             }
 
             for (auto &u: *units) {
-                if(!constructSensorNames(*u, an)) {
+                if(!constructSensorTopics(*u, an)) {
                     an.clearUnits();
                     delete units;
                     return false;
@@ -529,9 +525,7 @@ protected:
                     _cacheInterval = stoul(global.second.data());
                     LOG(debug) << "  Using own caching interval " << _cacheInterval << " [s]";
                     _cacheInterval *= 1000;
-                } else if (boost::iequals(global.first, "sensorpattern")) {
-                    _sensorPattern = global.second.data();
-                }
+                } 
             }
             global(config.get_child("global"));
         }
@@ -539,39 +533,17 @@ protected:
     }
 
     /**
-    * @brief                   Adjusts the names of the sensors
+    * @brief                   Adjusts the topics and names of the sensors
     *
-    *                          Names are modified according to the sensorPattern specified in the global
-    *                          settings. Operates in tandem with the auto-publish feature.
+    *                          Names are set according to the corresponding topic.
     *
     * @return                  true if successful, false otherwise
     */
-    //TODO: switch to textual MQTT topics and use only MQTTPrefix
-    bool constructSensorNames(UnitTemplate<SBase>& u, Analyzer& an) {
-        boost::regex sensorReg(SENSOR_PATTERN), groupReg(GROUP_PATTERN);
-        boost::cmatch match;
-        //TODO: move sensorpattern checks somewhere else
-        if(_sensorPattern == "")
-            return true;
-        else if (!boost::regex_search(_sensorPattern.c_str(), match, sensorReg)) {
-            LOG(error) << "Invalid sensor naming pattern " << _sensorPattern << ". You must at least include <sensor>!";
-            return false;
-        }
-
+    bool constructSensorTopics(UnitTemplate<SBase>& u, Analyzer& an) {
         std::string name;
         // Performing name construction
-        for(auto& s: u.getOutputs()) {
-            name = s->getName();
-            // If the unit is related to a system component all of its sensors will have their names adjusted already
-            // If it is root, then we apply normal auto-publish. This means that adding the analyzer's name
-            // or plugin ID do not always work, as of now
-            if( u.getName() == SensorNavigator::rootKey) {
-                name = _sensorPattern;
-                name = boost::regex_replace(name, sensorReg, s->getName());
-                name = boost::regex_replace(name, groupReg, an.getName());
-            }
-            s->setName(name);
-        }
+        for(auto& s: u.getOutputs())
+            s->setName(s->getMqtt());
         return true;
     }
 
@@ -589,8 +561,6 @@ protected:
     std::string 	_cfgPath;
     // Default MQTT prefix to be used when creating output sensors
     std::string		_mqttPrefix;
-    // String used to construct sensor names
-    std::string     _sensorPattern;
     // Interval in seconds for the cache of each sensor
     unsigned int	_cacheInterval;
     // The vector of analyzers, in the form of pointers to AnalyzerInterface objects

analytics/includes/AnalyzerTemplate.h

@@ -108,7 +108,8 @@ public:
     * @param ll         Logging level at which the configuration is printed
     */
     virtual void printConfig(LOG_LEVEL ll) override {
-        LOG_VAR(ll) << "            MQTT part:       " << (_mqttPart != "" ? _mqttPart : "DEFAULT");
+        if(_mqttPart!="")
+            LOG_VAR(ll) << "            MQTT part:       " << _mqttPart;
         LOG_VAR(ll) << "            Sync readings:   " << (_sync ? "enabled" : "disabled");
         LOG_VAR(ll) << "            Streaming mode:  " << (_streaming ? "enabled" : "disabled");
         LOG_VAR(ll) << "            Duplicated mode: " << (_duplicate ? "enabled" : "disabled");

analytics/includes/UnitGenerator.h

@@ -120,7 +120,7 @@ public:
 
         set<string> *sensors = new set<string>();
         if( level <= -1 )
-            sensors->insert(s);
+            sensors->insert(replace ? s : SensorNavigator::rootKey);
         else {
             //Ensuring that only the "filter" clause matches is enough, since we already checked for the entire
             // < > configuration block in parseNodeLevelString
@@ -180,8 +180,6 @@ public:
 
         // We iterate over the units, and resolve their inputs and outputs starting from the prototype definitions
         vector<shared_ptr<UnitTemplate<SBase>>> *unitObjects = new vector<shared_ptr<UnitTemplate<SBase>>>();
-        // If the unit pattern refers to root, we can resolve the unit immediately even if it is on demand
-        //TODO: remove this distinction after switching to textual MQTT topics, and don't resolve root unit
         if(!ondemand || unitLevel==-1)
             for(const auto& u : *units) {
                 try {
@@ -263,13 +261,13 @@ protected:
     // and then verify whether "node" belongs to this set or not.
     bool nodeBelongsToPattern(const string& node, const string& unit) {
         set<string>* units = resolveNodeLevelString(unit, SensorNavigator::rootKey, false);
-        if(!units->count(node)) {
+        if(units->count(node)) {
             delete units;
-            return false;
+            return true;
         }
         else {
             delete units;
-            return true;
+            return false;
         }
     }
 
@@ -353,9 +351,9 @@ protected:
                         uOut.setSinkPath(u + "_" + sPath);
                 }
             }
-                // If we are not using units (only unit is root, out of the hierarchy) we build sensors like in samplers
+            // If we are not using units (only unit is root, out of the hierarchy) we build sensors like in samplers
             else
-                uOut.setMqtt(mqttPrefix + uOut.getMqtt());
+                uOut.setMqtt(MQTTChecker::formatTopic(mqttPrefix) + MQTTChecker::formatTopic(uOut.getMqtt()));
             unitOutputs.push_back(make_shared<SBase>(uOut));
         }
         shared_ptr<UnitTemplate<SBase>> unPtr = make_shared<UnitTemplate<SBase>>(u, unitInputs, unitOutputs);

collectagent/analyticscontroller.cpp

@@ -37,13 +37,12 @@ bool AnalyticsController::initialize(Configuration& settings, const string& conf
     // A sensor navigator is only built if data analytics plugins are expected to be instantiated
     QueryEngine &_queryEngine = QueryEngine::getInstance();
     if(_manager->probe(_configPath, "collectagent.conf")) {
-        vector <string> names, topics;
+        vector <string> topics;
         list <DCDB::PublicSensor> publicSensors;
         // Fetching sensor names and topics from the Cassandra datastore
         _dcdbCfg->getPublicSensorsVerbose(publicSensors);
         for (const auto &s : publicSensors)
             if (!s.is_virtual) {
-                names.push_back(s.name);
                 topics.push_back(s.pattern);
             }
         publicSensors.clear();
@@ -51,7 +50,7 @@ bool AnalyticsController::initialize(Configuration& settings, const string& conf
         // Building the sensor navigator
         try {
             _navigator->setFilter(_settings.analyticsSettings.filter);
-            _navigator->buildTree(_settings.analyticsSettings.hierarchy, &names, &topics);
+            _navigator->buildTree(_settings.analyticsSettings.hierarchy, &topics);
         } catch (const std::invalid_argument &e) {
             LOG(error) << e.what();
             LOG(error) << "Failed to build sensor hierarchy tree!";
@@ -59,7 +58,6 @@ bool AnalyticsController::initialize(Configuration& settings, const string& conf
         }
         LOG(info) << "Built a sensor hierarchy tree of size " << _navigator->getTreeSize() << " and depth "
                   << _navigator->getTreeDepth() << ".";
-        names.clear();
         topics.clear();
 
         // Assigning the newly-built sensor navigator to the QueryEngine

common/include/mqttchecker.h

@@ -40,9 +40,15 @@ public:
      * @param cpuID     The cpu ID associated to this topic (if any)
      * @return          The processed MQTT topic or suffix
      */
-     //TODO: integrate proper topic formatting
     static std::string formatTopic(const std::string& topic, int cpuID=-1) {
-        return cpuID<0 ? topic : "cpu" + std::to_string(cpuID) + std::to_string(MQTT_SEP) + topic;
+        if(topic.empty()) return topic;
+        std::string newTopic = topic;
+        // Stripping off all forward slashes
+        while(!newTopic.empty() && newTopic.front()==MQTT_SEP) newTopic.erase(0, 1);
+        while(!newTopic.empty() && newTopic.back()==MQTT_SEP)  newTopic.erase(newTopic.size()-1, 1);
+        // Adding the one front forward slash that we need
+        newTopic.insert(0, 1, MQTT_SEP);
+        return cpuID<0 ? newTopic : "/cpu" + std::to_string(cpuID) + newTopic;
     }
 
     /**

common/include/sensorbase.h

@@ -259,7 +259,7 @@ public:
 	virtual void printConfig(LOG_LEVEL ll, LOGGER& lg, unsigned leadingSpaces=16) {
 	  std::string leading(leadingSpaces, ' ');
 	  LOG_VAR(ll) << leading << "Sensor: " << _name;
-	  LOG_VAR(ll) << leading << "    MQTT Topic:  " << _mqtt;
+	  //LOG_VAR(ll) << leading << "    MQTT Topic:  " << _mqtt;
 	  LOG_VAR(ll) << leading << "    Sink:        " << (getSinkPath() != "" ? getSinkPath() : "none");
       LOG_VAR(ll) << leading << "    SubSampling: " << getSubsampling();
       LOG_VAR(ll) << leading << (_skipConstVal ? "    Skipping constant values" : "    No skipping of constant values");

common/include/sensornavigator.h

@@ -11,6 +11,7 @@
 #include <boost/regex.hpp>
 #include <limits.h>
 #include <algorithm>
+#include "mqttchecker.h"
 
 using namespace std;
 
@@ -77,7 +78,7 @@ public:
     *					dots define the different levels in the architecture, and the corresponding list of regexes
     *					would be ["mpp3.", "rack\d{2}.", "chassis\d{2}.", "node\d{2}.", "cpu\d{2}"]. The last part
     *					of the sensor name is supposed to constitute a "leaf" in the tree. If the input vector is
-    *					empty, the tree is built automatically by interpreting each "." in the sensor name as a tree
+    *					empty, the tree is built automatically by interpreting each "/" in the sensor name as a tree
     *					level separator. The functionality implemented here requires careful naming of the sensors
     *					by developers.
     *
@@ -93,7 +94,7 @@ public:
     *
     *					Overloaded version of the method by the same name. Takes as input a string containing a
     *					space-separated list of regular expressions defining the sensor hierarchy. If the string is
-    *					empty, the tree is built automatically by interpreting each "." in the sensor name as a tree
+    *					empty, the tree is built automatically by interpreting each "/" in the sensor name as a tree
     *					level separator.
     *
     * @param hierarchy	String of comma-separated expressions that define the hierarchy

common/src/globalconfiguration.cpp

@@ -28,8 +28,6 @@ bool GlobalConfiguration::readConfig() {
         // ----- READING PLUGIN SETTINGS -----
         if (boost::iequals(global.first, "mqttprefix")) {
             pluginSettings.mqttPrefix = global.second.data();
-            if (pluginSettings.mqttPrefix[pluginSettings.mqttPrefix.length()-1] != '/')
-                pluginSettings.mqttPrefix.append("/");
         } else if (boost::iequals(global.first, "autoPublish")) {
             pluginSettings.autoPublish = to_bool(global.second.data());
         } else if (boost::iequals(global.first, "tempdir")) {

common/src/sensornavigator.cpp

@@ -6,7 +6,7 @@
 
 const string SensorNavigator::rootKey = "__root__";
 const string SensorNavigator::templateKey = "__template__";
-const char SensorNavigator::pathSeparator = '.';
+const char SensorNavigator::pathSeparator = '/';
 
 void SensorNavigator::clearTree() {
     if(_sensorTree) {
@@ -34,13 +34,8 @@ bool SensorNavigator::sensorExists(const string& node) {
 string SensorNavigator::buildTopicForNode(const string& node, const string& suffix, int len) {
     if(!_sensorTree || !_sensorTree->count(node) || isSensorNode(node))
         throw domain_error("SensorNavigator: node not found in tree!");
-
-    string nodePrefix = getNodeTopic(node);
-    int cnt = (int)std::count(nodePrefix.begin(), nodePrefix.end(), '/');
-    if( (int)nodePrefix.length() + (int)suffix.length() - cnt > len)
-        throw invalid_argument("SensorNavigator: cannot build topic, too many characters!");
-
-    return nodePrefix + string(len - nodePrefix.length() - suffix.length() + cnt, 'F') + suffix;
+    
+    return MQTTChecker::formatTopic(getNodeTopic(node)) + MQTTChecker::formatTopic(suffix);
 }
 
 bool SensorNavigator::isSensorNode(const string& node) {
@@ -317,7 +312,6 @@ void SensorNavigator::_addSensor(const string& name, const string& topic) {
             }
             else if(_usingTopics) {
                 // Intersecting the topics from the new sensor and the existing hierarchical node
-                //TODO: evaluate alternatives. This system is finnicky and depends too much on user configurations
                 int pCtr = 0;
                 Node& target = _sensorTree->at(last);
                 while( pCtr < (int)topic.length() && pCtr < (int)target.topic.length() && target.topic[pCtr] == topic[pCtr])
@@ -339,10 +333,11 @@ void SensorNavigator::_addSensor(const string& name, const string& topic) {
 
 void SensorNavigator::_addAutoSensor(const string& name, const string& topic) {
     string last=rootKey, prev="";
-    size_t sepPos = -1;
+    //sepPos=0 implies that the first character is skipped when searching for separators
+    size_t sepPos = 0;
     int d=0;
 
-    if(name.empty() || name[0] == pathSeparator || name[name.size()-1] == pathSeparator) {
+    if(name.empty() || name[name.size()-1] == pathSeparator) {
         clearTree();
         throw invalid_argument("SensorNavigator: sensor " + name + " does not describe a valid tree path!");
     }

dcdbpusher/dcdbpusher.cpp

@@ -262,16 +262,15 @@ int main(int argc, char** argv) {
 	// Preparing the SensorNavigator
 	if(_analyticsManager->probe(argv[argc-1], "dcdbpusher.conf")) {
 		std::shared_ptr <SensorNavigator> navigator = std::make_shared<SensorNavigator>();
-		vector <std::string> names, topics;
+		vector <std::string> topics;
 		for (const auto &p : _configuration->getPlugins())
 			for (const auto &g : p.configurator->getSensorGroups())
-				for (const auto &s : g->getSensors()) {
-					names.push_back(s->getName());
+				for (const auto &s : g->getSensors())
 					topics.push_back(s->getMqtt());
-				}
 		try {
 			navigator->setFilter(analyticsSettings.filter);
-			navigator->buildTree(analyticsSettings.hierarchy, &names, &topics);
+			navigator->buildTree(analyticsSettings.hierarchy, &topics);
+			topics.clear();
 			LOG(info) << "Built a sensor hierarchy tree of size " << navigator->getTreeSize() << " and depth " << navigator->getTreeDepth() << ".";
 			_queryEngine.setNavigator(navigator);
 			_queryEngine.triggerUpdate();

dcdbpusher/sensors/tester/TesterConfigurator.cpp

@@ -25,8 +25,6 @@ void TesterConfigurator::sensorGroup(TesterSensorGroup& s, CFG_VAL config) {
             s.setNumSensors(stoull(val.second.data()));
         } else if (boost::iequals(val.first, "startValue")) {
             s.setValue(stoi(val.second.data()));
-        } else if (boost::iequals(val.first, "mqttStart")) {
-            s.setMqttStart(val.second.data());
         }
     }
 

dcdbpusher/sensors/tester/TesterSensorGroup.cpp

@@ -15,7 +15,6 @@ using namespace std;
 TesterSensorGroup::TesterSensorGroup(const std::string& name) :
 	SensorGroupTemplate(name),
 	_value(0),
-	_mqttStart("00"),
 	_numSensors(0) {}
 
 // Overriding assignment operator so that sensors are not copy-constructed
@@ -26,7 +25,6 @@ TesterSensorGroup& TesterSensorGroup::operator=(const TesterSensorGroup& other)
 
 	_numSensors = other._numSensors;
 	_value = other._value;
-	_mqttStart = other._mqttStart;
 
 	return *this;
 }
@@ -85,5 +83,4 @@ void TesterSensorGroup::readAsync() {
 void TesterSensorGroup::printConfig(LOG_LEVEL ll) {
     LOG_VAR(ll) << "            Value:       " << _value;
     LOG_VAR(ll) << "            Num Sensors: " << _numSensors;
-    LOG_VAR(ll) << "            MQTT start:  " << _mqttStart;
 }

dcdbpusher/sensors/tester/TesterSensorGroup.h

@@ -22,11 +22,9 @@ public:
 	void stop()		override;
 
 	void setValue(long long n)              { _value = n; }
-	void setMqttStart(std::string m) 		{ _mqttStart = m; }
 	void setNumSensors(unsigned int n)      { _numSensors = n; }
 
     long long getValue()              { return _value; }
-    std::string getMqttStart() 		  { return _mqttStart; }
     unsigned int getNumSensors()      { return _numSensors; }
 
     void printConfig(LOG_LEVEL ll) override;