Adapt remaining plugins to new configurator architecture. Various fixes and improvements

config/bacnet.conf

@@ -9,8 +9,8 @@ global {
 	cacheInterval	90
 }
 
-templates {
-  property def0 {
+sensorTemplates {
+  sensor def0 {
   	factor		100
 	id			85
     interval    1000

config/ipmi.conf

@@ -5,7 +5,7 @@ global {
 	mqttprefix /AABBAABBAABBAACCDDCCDDCC
 }
 
-templateSensors {
+sensorTemplates {
 	sensor energy {
 ;		type		raw
 		factor		0.001

config/pdu.conf

@@ -2,7 +2,7 @@ global {
   mqttprefix	/00112233445566778899AABBCCDD
 }
 
-SensorTemplate {
+sensorTemplates {
 	sensor def1 {
  		interval	1000
 		minValues	3

config/perfevent.conf

-CounterTemplate {
-  counter def1 {
+sensorTemplates {
+  sensor def1 {
     interval    5000
     mqttsuffix	0222
     minValues   5
@@ -7,47 +7,47 @@ CounterTemplate {
     config      PERF_COUNT_HW_INSTRUCTIONS
   }
 
-  counter def2 {
+  sensor def2 {
     interval    2000
     type        PERF_TYPE_HARDWARE
 	cpus		1,2
   }
 }
 
-counters {
-  counter hw_instructions {
+sensors {
+  sensor hw_instructions {
     default     def1
     mqttsuffix  0020
   }
   
-  counter hw_branch_instructions {
+  sensor hw_branch_instructions {
     default     def2
     mqttsuffix  0024
     config      PERF_COUNT_HW_BRANCH_INSTRUCTIONS
   }
 
-  counter hw_branch_misses {
+  sensor hw_branch_misses {
     default     def2
     mqttsuffix  002C
     config      PERF_COUNT_HW_BRANCH_MISSES
 	cpus		0,2-3
   }
   
-  counter sw_pagefaults {
+  sensor sw_pagefaults {
     interval    5000
     mqttsuffix	0030
     type        PERF_TYPE_SOFTWARE
     config      PERF_COUNT_SW_PAGE_FAULTS
   }
   
-  counter sw_context_switches {
+  sensor sw_context_switches {
     interval    5000
     mqttsuffix	0034
     type        PERF_TYPE_SOFTWARE
     config      PERF_COUNT_SW_CONTEXT_SWITCHES
   }
 
-  counter sw_cpu_migrations {
+  sensor sw_cpu_migrations {
     interval    5000
     mqttsuffix	0038
     type        PERF_TYPE_SOFTWARE

config/snmp.conf

@@ -2,7 +2,7 @@ global {
 	mqttprefix		/00112233445566778899AABBCC
 }
 
-templates {
+sensorTemplates {
 	sensor temp1 {
 		interval	1000
 		minValues	3

config/sysfs.conf

@@ -2,7 +2,7 @@ global {
 	mqttPrefix	/FF112233445566778899AABBFFFF
 }
 
-SensorTemplate {
+sensorTemplates {
   sensor def1 {
     path        /home/micha/LRZ/dcdbOwnFork/sysfspusher/temp
     interval    1000

src/ConfiguratorTemplate.h

@@ -51,32 +51,38 @@ public:
 		boost::property_tree::read_info(cfgPath, cfg);
 
 		//read global variables (if present overwrite those from global.conf)
-		BOOST_FOREACH(boost::property_tree::iptree::value_type &global, cfg.get_child("global")) {
-			if (boost::iequals(global.first, "mqttprefix")) {
-				_mqttPrefix = global.second.data();
-				if (_mqttPrefix[_mqttPrefix.length()-1] != '/') {
-					_mqttPrefix.append("/");
+		boost::optional<boost::property_tree::iptree&> globalVals = cfg.get_child_optional("global");
+		if (globalVals) {
+			BOOST_FOREACH(boost::property_tree::iptree::value_type &global, cfg.get_child("global")) {
+				if (boost::iequals(global.first, "mqttprefix")) {
+					_mqttPrefix = global.second.data();
+					if (_mqttPrefix[_mqttPrefix.length()-1] != '/') {
+						_mqttPrefix.append("/");
+					}
+					LOG(debug) << "  Using own MQTT-Prefix " << _mqttPrefix;
+				} else if (boost::iequals(global.first, "cacheInterval")) {
+					_cacheInterval = stoul(global.second.data());
+					LOG(debug) << "  Using own caching interval " << _cacheInterval << " [s]";
+					_cacheInterval *= 1000;
+				} else {
+					LOG(error) << "  Value \"" << global.first << "\" not recognized. Omitting for the moment";
 				}
-				LOG(debug) << "  Using own MQTT-Prefix " << _mqttPrefix;
-			} else if (boost::iequals(global.first, "cacheInterval")) {
-				_cacheInterval = stoul(global.second.data());
-				LOG(debug) << "  Using own caching interval " << _cacheInterval << " [s]";
-				_cacheInterval *= 1000;
-			} else {
-				LOG(error) << "  Value \"" << global.first << "\" not recognized. Omitting...";
 			}
 		}
 
 		//read template sensors
-		BOOST_FOREACH(boost::property_tree::iptree::value_type &sens, cfg.get_child("templates")) {
-			if (boost::iequals(sens.first, "sensor")) {
-				LOG(debug) << "Template Sensor \"" << sens.second.data() << "\"";
-				if (!sens.second.empty()) {
-					S sensor(sens.second.data());
-					if(readSensor(sensor, sens.second)) {
-						_templateSensors.insert(std::pair<std::string, S>(sensor.getName(), sensor));
-					} else {
-						LOG(warning) << "Template sensor \"" << sens.second.data() << "\" has bad values! Ignoring...";
+		boost::optional<boost::property_tree::iptree&> tempSens = cfg.get_child_optional("sensorTemplates");
+		if (tempSens) {
+			BOOST_FOREACH(boost::property_tree::iptree::value_type &sensorVal, cfg.get_child("sensorTemplates")) {
+				if (boost::iequals(sensorVal.first, "sensor")) {
+					LOG(debug) << "Template Sensor \"" << sensorVal.second.data() << "\"";
+					if (!sensorVal.second.empty()) {
+						S sensor(sensorVal.second.data());
+						if(readSensor(sensor, sensorVal.second)) {
+							_templateSensors.insert(std::pair<std::string, S>(sensor.getName(), sensor));
+						} else {
+							LOG(warning) << "Template sensor \"" << sensorVal.second.data() << "\" has bad values! Ignoring...";
+						}
 					}
 				}
 			}
@@ -146,8 +152,6 @@ protected:
 		BOOST_FOREACH(boost::property_tree::iptree::value_type &val, config) {
 			if (boost::iequals(val.first, "interval")) {
 				sensor.setInterval(stoull(val.second.data()));
-			} else if (boost::iequals(val.first, "mqttsuffix")) {
-				sensor.setMqtt(sensor.getMqtt() + val.second.data());
 			} else if (boost::iequals(val.first, "minValues")) {
 				sensor.setMinValues(stoull(val.second.data()));
 			} else {
@@ -156,7 +160,6 @@ protected:
 		}
 		sensor.setCacheInterval(_cacheInterval);
 
-		LOG(debug) << "  MQTT     : " << sensor.getMqtt();
 		LOG(debug) << "  Interval : " << sensor.getInterval();
 		LOG(debug) << "  minValues: " << sensor.getMinValues();
 

src/sensors/bacnet/BACnetConfigurator.cpp

@@ -7,10 +7,7 @@
 
 #include "BACnetConfigurator.h"
 
-#include <boost/property_tree/info_parser.hpp>
-#include <boost/foreach.hpp>
 #include <boost/optional.hpp>
-#include <boost/algorithm/string.hpp>
 #include <iostream>
 
 BACnetConfigurator::BACnetConfigurator() {
@@ -23,11 +20,7 @@ BACnetConfigurator::~BACnetConfigurator() {
 	}
 }
 
-bool BACnetConfigurator::readConfig(std::string cfgPath) {
-	Configurator::readConfig(cfgPath);
-	boost::property_tree::iptree cfg;
-	boost::property_tree::read_info(cfgPath, cfg);
-
+bool BACnetConfigurator::derivedReadConfig(boost::property_tree::iptree& cfg) {
 	_bacClient = new BACnetClient();
 	std::string interface, address_cache, mqttPartDevice, mqttPartObject;
 	unsigned port = 47808, timeout = 1000, apdu_timeout = 200, apdu_retries = 0;
@@ -55,15 +48,9 @@ bool BACnetConfigurator::readConfig(std::string cfgPath) {
 			apdu_retries = stoul(global.second.data());
 			LOG(debug) << "  apdu_retries " << apdu_retries;
 		} else if (boost::iequals(global.first, "mqttprefix")) {
-			_mqttPrefix = global.second.data();
-			if (_mqttPrefix[_mqttPrefix.length()-1] != '/') {
-				_mqttPrefix.append("/");
-			}
-			LOG(debug) << "  Using own MQTT-Prefix " << _mqttPrefix;
+			//avoid unnecessary "Value not recognized" messages
 		} else if (boost::iequals(global.first, "cacheInterval")) {
-			_cacheInterval = stoul(global.second.data());
-			LOG(debug) << "  Using own caching interval " << _cacheInterval << " [s]";
-			_cacheInterval *= 1000;
+			//avoid unnecessary "Value not recognized" messages
 		} else {
 			LOG(error) << "  Value \"" << global.first << "\" not recognized. Omitting...";
 		}
@@ -76,21 +63,6 @@ bool BACnetConfigurator::readConfig(std::string cfgPath) {
 		return false;
 	}
 
-	//read template sensors
-	BOOST_FOREACH(boost::property_tree::iptree::value_type &sensor, cfg.get_child("templates")) {
-		if (boost::iequals(sensor.first, "property")) {
-			LOG(debug) << "Template Sensor \"" << sensor.second.data() << "\"";
-			if (!sensor.second.empty()) {
-				BACnetSensor bacnetSensor(sensor.second.data());
-				if(readSensor(bacnetSensor, sensor.second)) {
-					_templateSensors.insert(sensorMap_t::value_type(bacnetSensor.getName(), bacnetSensor));
-				} else {
-					LOG(warning) << "Template sensor \"" << sensor.second.data() << "\" has bad values! Ignoring...";
-				}
-			}
-		}
-	}
-
 	BOOST_FOREACH(boost::property_tree::iptree::value_type &device, cfg.get_child("devices")) {
 		if (boost::iequals(device.first, ("device"))) {
 			LOG(debug) << "Device " << device.second.data();
@@ -140,8 +112,8 @@ bool BACnetConfigurator::readConfig(std::string cfgPath) {
 										bacSensor->setDeviceInstance(deviceInstance);
 										bacSensor->setObjectInstance(objInstance);
 										bacSensor->setObjectType(objType);
-										bacSensor->setMqtt(_mqttPrefix + mqttPartDevice + mqttPartObject);
 										bacSensor->setBACnetClient(_bacClient);
+										bacSensor->setMqtt(_mqttPrefix + mqttPartDevice + mqttPartObject);
 										//read remaining values
 										if(readSensor(*bacSensor, object.second)) {
 											_sensors.push_back(bacSensor);
@@ -160,31 +132,30 @@ bool BACnetConfigurator::readConfig(std::string cfgPath) {
 	return true;
 }
 
-bool BACnetConfigurator::readSensor(BACnetSensor& sensor, boost::property_tree::iptree& config) {
+void BACnetConfigurator::derivedReReadConfig() {
+	sleep(10);
+	delete _bacClient;
+	_bacClient = NULL;
+}
+
+bool BACnetConfigurator::derivedReadSensor(BACnetSensor& sensor, boost::property_tree::iptree& config) {
 	BOOST_FOREACH(boost::property_tree::iptree::value_type &val, config) {
 		if (boost::iequals(val.first, "interval")) {
-			sensor.setInterval(stoull(val.second.data()));
+			//avoid unnecessary "Value not recognized" messages
+		} else if (boost::iequals(val.first, "minValues")) {
+		} else if (boost::iequals(val.first, "default")) {
 		} else if (boost::iequals(val.first, "mqttsuffix")) {
-			//assume prefix mqtt part is already set in this sensor. Just append suffix
 			sensor.setMqtt(sensor.getMqtt() + val.second.data());
-		} else if (boost::iequals(val.first, "minValues")) {
-			sensor.setMinValues(stoull(val.second.data()));
 		} else if (boost::iequals(val.first, ("factor"))) {
 			sensor.setFactor(std::stod(val.second.data()));
 		} else if (boost::iequals(val.first, ("id"))) {
 			sensor.setPropertyId(static_cast<BACNET_PROPERTY_ID>(stoul(val.second.data())));
-		} else if (boost::iequals(val.first, "default")) {
-			//avoid unnecessary "Value not recognized" message
 		} else {
 			LOG(warning) << "  Value \"" << val.first << "\" not recognized. Omitting...";
 		}
 	}
 
-	sensor.setCacheInterval(_cacheInterval);
-
-	LOG(debug) << "  MQTTtopic:" << sensor.getMqtt();
-	LOG(debug) << "  Interval : " << sensor.getInterval();
-	LOG(debug) << "  minValues: " << sensor.getMinValues();
+	LOG(debug) << "  MQTT     : " << sensor.getMqtt();
 	LOG(debug) << "  factor   : " << sensor.getFactor();
 	LOG(debug) << "  instance : " << sensor.getDeviceInstance();
 	LOG(debug) << "  objInst  : " << sensor.getObjectInstance();

src/sensors/bacnet/BACnetConfigurator.h

@@ -11,60 +11,30 @@
 #include "BACnetSensor.h"
 #include "BACnetClient.h"
 
-#include <string>
-#include <vector>
-#include <map>
-#include <boost/property_tree/ptree.hpp>
-
 #include "../../ConfiguratorTemplate.h"
 
 class BACnetConfigurator: public ConfiguratorTemplate<BACnetSensor> {
 
-	typedef std::map<std::string, BACnetSensor> sensorMap_t;
-
 public:
 
 	BACnetConfigurator();
 	virtual ~BACnetConfigurator();
 
-	/**
-	 * Read in the configuration for BACnet-sensors.
-	 * @param cfgPath	Path + name of the config-file
-	 * @return		true on success, false otherwise
-	 */
-	bool readConfig(std::string cfgPath);
-
-	//Overwrite from Configurator
-	bool reReadConfig() {
-		for (auto s : _sensors) {
-			s->stopPolling();
-		}
-		sleep(10);
-		delete _bacClient;
-		_bacClient = NULL;
-		_templateSensors.clear();
-		return ConfiguratorTemplate::reReadConfig();
-	}
+protected:
+	bool derivedReadConfig(boost::property_tree::iptree& cfg) override;
+	void derivedReReadConfig() override;
+	void derivedSetGlobalSettings(const pluginSettings_t& pluginSettings) override {/*nothing to overwrite*/}
+	bool derivedReadSensor(BACnetSensor& sensor, boost::property_tree::iptree& config) override;
 
 private:
-	/**
-	 * Set the variables of sensor according to the values specified in config.
-	 * @param sensor	The sensor to be configured
-	 * @param config	A property(sub)tree containing the values
-	 *
-	 * @return	True on success, false otherwise
-	 */
-	bool readSensor(BACnetSensor& sensor, boost::property_tree::iptree& config);
-
 	BACnetClient*		 _bacClient;
-	sensorMap_t 	 	 _templateSensors;
 };
 
-extern "C" ConfiguratorTemplate* create() {
+extern "C" ConfiguratorInterface* create() {
 	return new BACnetConfigurator;
 }
 
-extern "C" void destroy(ConfiguratorTemplate* c) {
+extern "C" void destroy(ConfiguratorInterface* c) {
 	delete c;
 }
 

src/sensors/ipmi/IPMIConfigurator.cpp

@@ -2,18 +2,12 @@
  * IPMIConfigurator.cpp
  *
  *  Created on: 26 Jan 2017
- *      Author: ottmi
+ *      Author: Michael Ott (original), Micha Mueller
  */
 
 #include "IPMIConfigurator.h"
 
-#include "IPMIHost.h"
-#include "IPMISensor.h"
-
-#include <boost/property_tree/info_parser.hpp>
-#include <boost/foreach.hpp>
 #include <boost/optional.hpp>
-#include <boost/algorithm/string.hpp>
 #include <iostream>
 
 namespace DCDB {
@@ -25,54 +19,28 @@ IPMIConfigurator::IPMIConfigurator() {
 
 IPMIConfigurator::~IPMIConfigurator() {}
 
-bool IPMIConfigurator::readConfig(std::string cfgPath) {
-	Configurator::readConfig(cfgPath);
-
-	boost::property_tree::iptree cfg;
-	boost::property_tree::read_info(cfgPath, cfg);
-
+bool IPMIConfigurator::derivedReadConfig(boost::property_tree::iptree& cfg) {
 	//read global variables (if present overwrite those from global.conf)
 	BOOST_FOREACH(boost::property_tree::iptree::value_type &global, cfg.get_child("global")) {
 		if (boost::iequals(global.first, "SessionTimeout")) {
 			_globalHost.sessionTimeout = stoi(global.second.data());
-			LOG(debug) << "  SessionTimeout " << _globalHost.sessionTimeout;
+			LOG(debug)<< "  SessionTimeout " << _globalHost.sessionTimeout;
 		} else if (boost::iequals(global.first, "RetransmissionTimeout")) {
 			_globalHost.retransmissionTimeout = stoi(global.second.data());
 			LOG(debug) << "  RetransmissionTimeout " << _globalHost.retransmissionTimeout;
 		} else if (boost::iequals(global.first, "mqttprefix")) {
-			_mqttPrefix = global.second.data();
-			if (_mqttPrefix[_mqttPrefix.length()-1] != '/') {
-				_mqttPrefix.append("/");
-			}
-			LOG(debug) << "  Using own MQTT-Prefix " << _mqttPrefix;
+			//avoid unnecessary "Value not recognized" messages
 		} else if (boost::iequals(global.first, "cacheInterval")) {
-			_cacheInterval = stoul(global.second.data());
-			LOG(debug) << "  Using own caching interval " << _cacheInterval << " [s]";
-			_cacheInterval *= 1000;
+			//avoid unnecessary "Value not recognized" messages
 		} else {
 			LOG(error) << "  Value \"" << global.first << "\" not recognized. Omitting...";
 		}
 	}
 
-	//read template sensors
-	BOOST_FOREACH(boost::property_tree::iptree::value_type &sensor, cfg.get_child("templateSensors")) {
-		if (boost::iequals(sensor.first, "sensor")) {
-			LOG(debug) << "Template Sensor \"" << sensor.second.data() << "\"";
-			if (!sensor.second.empty()) {
-				DCDB::IPMISensor ipmiSensor(sensor.second.data());
-				if(readSensor(ipmiSensor, sensor.second)) {
-					_templateSensors.insert(sensorMap_t::value_type(ipmiSensor.getName(), ipmiSensor));
-				} else {
-					LOG(warning) << "Template sensor \"" << sensor.second.data() << "\" has bad values! Ignoring...";
-				}
-			}
-		}
-	}
-
 	BOOST_FOREACH(boost::property_tree::iptree::value_type &host, cfg.get_child("hosts")) {
 		if (boost::iequals(host.first, ("host"))) {
-			LOG(debug) << "Host " << host.second.data();
-			_hosts.push_back(DCDB::IPMIHost(host.second.data(),	_globalHost.retransmissionTimeout, _globalHost.sessionTimeout));
+			LOG(debug)<< "Host " << host.second.data();
+			_hosts.push_back(DCDB::IPMIHost(host.second.data(), _globalHost.retransmissionTimeout, _globalHost.sessionTimeout));
 			DCDB::IPMIHost &ipmiHost = _hosts.back();
 			ipmiHost.setMqttPrefix(_mqttPrefix);
 			ipmiHost.setCache(_tempdir);
@@ -126,22 +94,27 @@ bool IPMIConfigurator::readConfig(std::string cfgPath) {
 	return true;
 }
 
-bool IPMIConfigurator::readSensor(DCDB::IPMISensor& sensor, boost::property_tree::iptree& config) {
+void IPMIConfigurator::derivedReReadConfig() {
+	sleep(10);
+	_hosts.clear();
+}
+
+bool IPMIConfigurator::derivedReadSensor(DCDB::IPMISensor& sensor, boost::property_tree::iptree& config) {
 	BOOST_FOREACH(boost::property_tree::iptree::value_type &val, config) {
 		if (boost::iequals(val.first, "interval")) {
-			sensor.setInterval(stoull(val.second.data()));
+			//avoid unnecessary "Value not recognized" messages
+		} else if (boost::iequals(val.first, "minValues")) {
+		} else if (boost::iequals(val.first, "default")) {
 		} else if (boost::iequals(val.first, "mqttsuffix")) {
 			if (sensor.getHost() != NULL) {
 				// only workaround so that every host can define own prefix
 				// not guaranteed, but should actually work as long as prefix is defined before the sensors within a host
 				if (sensor.getHost()->getMqttPrefix() != "") {
 					sensor.setMqtt(sensor.getHost()->getMqttPrefix() + val.second.data());
-				} else {
-					sensor.setMqtt(_mqttPrefix + val.second.data());
 				}
+			} else {
+				sensor.setMqtt(_mqttPrefix + val.second.data());
 			}
-		} else if (boost::iequals(val.first, "minValues")) {
-			sensor.setMinValues(stoull(val.second.data()));
 		} else if (boost::iequals(val.first, ("cmd"))) {
 			sensor.setRawCmd(val.second.data());
 		} else if (boost::iequals(val.first, "start")) {
@@ -152,18 +125,12 @@ bool IPMIConfigurator::readSensor(DCDB::IPMISensor& sensor, boost::property_tree
 			sensor.setRecordId(stoul(val.second.data()));
 		} else if (boost::iequals(val.first, ("factor"))) {
 			sensor.setFactor(std::stod(val.second.data()));
-		} else if (boost::iequals(val.first, "default")) {
-			//avoid unnecessary "Value not recognized" message
 		} else {
-			LOG(warning) << "  Value \"" << val.first << "\" not recognized. Omitting...";
+			LOG(warning)<<"  Value \"" << val.first << "\" not recognized. Omitting...";
 		}
 	}
 
-	sensor.setCacheInterval(_cacheInterval);
-
-	LOG(debug) << "  MQTTSuffix:" << sensor.getMqtt();
-	LOG(debug) << "  Interval : " << sensor.getInterval();
-	LOG(debug) << "  minValues: " << sensor.getMinValues();
+	LOG(debug) << "  MQTT     : " << sensor.getMqtt();
 	LOG(debug) << "  factor   : " << sensor.getFactor();
 	if (sensor.getRecordId() != 0) {
 		LOG(debug) << "  RecordID : " << sensor.getRecordId();
@@ -175,4 +142,5 @@ bool IPMIConfigurator::readSensor(DCDB::IPMISensor& sensor, boost::property_tree
 	return true;
 }
 
-} /* namespace DCDB */
+}
+/* namespace DCDB */

src/sensors/ipmi/IPMIConfigurator.h

@@ -2,7 +2,7 @@
  * IPMIConfigurator.h
  *
  *  Created on: 26 Jan 2017
- *      Author: ottmi
+ *      Author: Michael Ott (original), Micha Mueller
  */
 
 #ifndef IPMICONFIGURATOR_H_
@@ -10,71 +10,44 @@
 
 #include "IPMISensor.h"
 #include "IPMIHost.h"
-#include <boost/property_tree/ptree.hpp>
-#include <string>
-#include <map>
+
 #include <list>
-#include <vector>
 
 #include "../../ConfiguratorTemplate.h"
 
 namespace DCDB {
 
-  class IPMIConfigurator : public ConfiguratorTemplate<IPMISensor> {
+class IPMIConfigurator: public ConfiguratorTemplate<DCDB::IPMISensor> {
 
 	typedef std::list<DCDB::IPMIHost> hostList_t;
-	typedef std::map<std::string, DCDB::IPMISensor> sensorMap_t;
 	typedef struct {
 		uint32_t sessionTimeout;
 		uint32_t retransmissionTimeout;
 	} globalHost_t;
 
-	public:
-		IPMIConfigurator();
-		virtual ~IPMIConfigurator();
-
-		bool readConfig(std::string cfgPath);
-
-		//Overwrite from Configurator
-		void setGlobalSettings(const pluginSettings_t& pluginSettings) {
-			ConfiguratorTemplate::setGlobalSettings(pluginSettings);
-			_tempdir = pluginSettings.tempdir;
-		}
-
-		//Overwrite from Configurator
-		bool reReadConfig() {
-			for (auto s : _sensors) {
-				s->stopPolling();
-			}
-			sleep(10);
-			_hosts.clear();
-			_templateSensors.clear();
-			return ConfiguratorTemplate::reReadConfig();
-		}
+public:
+	IPMIConfigurator();
+	virtual ~IPMIConfigurator();
 
-	private:
-		/**
-		 * Set the variables of sensor according to the values specified in config.
-		 * @param sensor	The sensor to be configured
-		 * @param config	A property(sub)tree containing the values
-		 *
-		 * @return	True on success, false otherwise
-		 */
-		bool readSensor(IPMISensor& sensor, boost::property_tree::iptree& config);
+protected:
+	bool derivedReadConfig(boost::property_tree::iptree& cfg) override;
+	void derivedReReadConfig() override;
+	void derivedSetGlobalSettings(const pluginSettings_t& pluginSettings) override { _tempdir = pluginSettings.tempdir; }
+	bool derivedReadSensor(DCDB::IPMISensor& sensor, boost::property_tree::iptree& config) override;
 
-		std::string _tempdir;
-		sensorMap_t _templateSensors;
-		hostList_t  _hosts;
-		globalHost_t    _globalHost;
-	};
+private:
+	std::string _tempdir;
+	hostList_t _hosts;
+	globalHost_t _globalHost;