L1Menu/src/ReducedMenuSample.cpp

#include "l1menu/ReducedMenuSample.h"

#include <vector>
#include <stdexcept>
#include <fstream>
#include "l1menu/IReducedEvent.h"
#include "l1menu/MenuSample.h"
#include "l1menu/TriggerMenu.h"
#include "l1menu/ITrigger.h"
#include "l1menu/tools.h"
#include "protobuf/l1menu.pb.h"

namespace // unnamed namespace
{
        class ReducedEventImplementation : public l1menu::IReducedEvent
        {
        public:
                virtual ~ReducedEventImplementation() {}
                virtual float parameterValue( size_t parameterNumber ) const { return pThresholdValues->at(parameterNumber); }
                virtual float weight() const { return *pWeight; }
                void setWeight( float newWeight ) { *pWeight=newWeight; }
                std::vector<float>* pThresholdValues;
                float* pWeight;
        };
}

namespace l1menu
{
        /** @brief Private members for the ReducedMenuSample class
         *
         * @author Mark Grimes (mark.grimes@bristol.ac.uk)
         * @date 28/May/2013
         */
        class ReducedMenuSamplePrivateMembers
        {
        public:
                ReducedMenuSamplePrivateMembers( size_t newNumberOfEvents, size_t numberOfParameters, const l1menu::TriggerMenu newTriggerMenu )
                        : thresholdsForAllEvents( newNumberOfEvents, std::vector<float>(numberOfParameters) ),
                          weights( newNumberOfEvents ), numberOfEvents( newNumberOfEvents ), triggerMenu( newTriggerMenu )
                {
                        // Run through every event and default every weight to 1.
                        for( auto& eventWeight : weights )
                        {
                                eventWeight=1;
                        }
                }
                std::vector< std::vector<float> > thresholdsForAllEvents;
                std::vector<float> weights;
                ::ReducedEventImplementation event;
                size_t numberOfEvents;
                const l1menu::TriggerMenu triggerMenu;
        };
}

l1menu::ReducedMenuSample::ReducedMenuSample( const l1menu::MenuSample& originalSample, const l1menu::TriggerMenu& triggerMenu )
{
        size_t numberOfEvents=originalSample.numberOfEvents();
        // Need to find out how many parameters there are for each event. Basically the sum
        // of the number of thresholds for all triggers.
        size_t numberOfParameters=0;
        for( size_t triggerNumber=0; triggerNumber<triggerMenu.numberOfTriggers(); ++triggerNumber )
        {
                const l1menu::ITrigger& trigger=triggerMenu.getTrigger(triggerNumber);
                numberOfParameters+=l1menu::getThresholdNames(trigger).size();
        }

        // Now I know how many events there are and how many parameters, I can create the pimple
        // with the correct parameters.
        pImple_.reset( new l1menu::ReducedMenuSamplePrivateMembers( numberOfEvents, numberOfParameters, triggerMenu ) );

        //
        // Now I've set the storage to the correct size, run through each event
        // and fill with the correct values.
        //
        for( size_t eventNumber=0; eventNumber<numberOfEvents; ++eventNumber )
        {
                const l1menu::IEvent& event=originalSample.getEvent( eventNumber );
                std::vector<float>& parameters=pImple_->thresholdsForAllEvents[eventNumber];

                size_t parameterNumber=0;
                // Loop over all of the triggers
                for( size_t triggerNumber=0; triggerNumber<triggerMenu.numberOfTriggers(); ++triggerNumber )
                {
                        std::unique_ptr<l1menu::ITrigger> pTrigger=triggerMenu.getTriggerCopy(triggerNumber);
                        std::vector<std::string> thresholdNames=getThresholdNames(*pTrigger);

                        try
                        {
                                setTriggerThresholdsAsTightAsPossible( event, *pTrigger, 0.001 );
                                // Set all of the parameters to match the thresholds in the trigger
                                for( const auto& thresholdName : thresholdNames )
                                {
                                        parameters[parameterNumber]=pTrigger->parameter(thresholdName);
                                        ++parameterNumber;
                                }
                        }
                        catch( std::exception& error )
                        {
                                // setTriggerThresholdsAsTightAsPossible() couldn't find thresholds so record
                                // -1 for everything.
                                for( size_t index=0; index<thresholdNames.size(); ++index )
                                {
                                        parameters[parameterNumber]=-1;
                                        ++parameterNumber;
                                }
                        } // end of try block that sets the trigger thresholds

                } // end of loop over triggers
        } // end of loop over events
}

l1menu::ReducedMenuSample::~ReducedMenuSample()
{
        // No operation. Just need one defined otherwise the default one messes up
        // the unique_ptr deletion because ReducedMenuSamplePrivateMembers isn't
        // defined elsewhere.
}

l1menu::ReducedMenuSample::ReducedMenuSample( const std::string& filename )
{
        GOOGLE_PROTOBUF_VERIFY_VERSION;

        l1menuprotobuf::Sample inputSample;
        { // new block to limit scope of variables
                std::ifstream inputFile( filename );
                inputSample.ParseFromIstream( &inputFile );
        }

        l1menu::TriggerMenu triggerMenu;

        size_t totalNumberOfThresholds=0;

        for( int triggerNumber=0; triggerNumber<inputSample.trigger_size(); ++triggerNumber )
        {
                const l1menuprotobuf::Trigger& inputTrigger=inputSample.trigger(triggerNumber);

                triggerMenu.addTrigger( inputTrigger.name(), inputTrigger.version() );
                // Get a reference to the trigger I just created
                l1menu::ITrigger& trigger=triggerMenu.getTrigger(triggerNumber);

                // Run through all of the parameters and set them to what they were
                // when the sample was made.
                for( int parameterNumber=0; parameterNumber<inputTrigger.parameter_size(); ++parameterNumber )
                {
                        const auto& inputParameter=inputTrigger.parameter(parameterNumber);
                        trigger.parameter(inputParameter.name())=inputParameter.value();
                }

                // I should probably check the threshold names exist. At the moment I just see how
                // many there are so that can initialise the buffer that holds the event data.
                totalNumberOfThresholds+=inputTrigger.threshold_size();
        }

        // Now I have the menu set up as much as I need it (thresholds aren't set
        // but I don't care about those). I can initialise the ReducedMenuSamplePrivateMembers
        // pImple_ with the menu and the correct sizes for the data buffer.
        pImple_.reset( new l1menu::ReducedMenuSamplePrivateMembers( inputSample.event_size(), totalNumberOfThresholds, triggerMenu ) );

        // Now run over each event from the input file
        for( int eventNumber=0; eventNumber<inputSample.event_size(); ++eventNumber )
        {
                auto& thresholdsForEvent=pImple_->thresholdsForAllEvents[eventNumber];
                const auto& inputEvent=inputSample.event(eventNumber);

                for( int thresholdNumber=0; thresholdNumber<inputEvent.threshold_size(); ++thresholdNumber )
                {
                        thresholdsForEvent[thresholdNumber]=inputEvent.threshold(thresholdNumber);
                }

                // See if the weight was stored and set it if it has
                if( inputEvent.has_weight() ) pImple_->weights[eventNumber]=inputEvent.weight();
        }
}

void l1menu::ReducedMenuSample::saveToFile( const std::string& filename ) const
{
        GOOGLE_PROTOBUF_VERIFY_VERSION;

        l1menuprotobuf::Sample outputSample;

        for( size_t triggerNumber=0; triggerNumber<pImple_->triggerMenu.numberOfTriggers(); ++triggerNumber )
        {
                const l1menu::ITrigger& trigger=pImple_->triggerMenu.getTrigger(triggerNumber);

                l1menuprotobuf::Trigger* pOutputTrigger=outputSample.add_trigger();
                pOutputTrigger->set_name( trigger.name() );
                pOutputTrigger->set_version( trigger.version() );

                // For the parameters that aren't thresholds, record the name and value.
                const auto parameterNames=l1menu::getNonThresholdParameterNames(trigger);
                for( const auto& parameterName : parameterNames )
                {
                        l1menuprotobuf::Trigger_TriggerParameter* pOutputParameter=pOutputTrigger->add_parameter();
                        pOutputParameter->set_name(parameterName);
                        pOutputParameter->set_value( trigger.parameter(parameterName) );
                }

                // For the parameters that are thresholds, just record the name. The value is
                // recorded in each event.
                const auto thresholdNames=l1menu::getThresholdNames(trigger);
                for( const auto& thresholdName : thresholdNames ) pOutputTrigger->add_threshold(thresholdName);

        } // end of loop over triggers

        //
        // I've done everything for what is effectively the header. I now need
        // to run through each event and record the thresholds for each one.
        //
        for( const auto& thresholdsForEvent : pImple_->thresholdsForAllEvents )
        {
                l1menuprotobuf::Event* pOutputEvent=outputSample.add_event();
                for( const auto& threshold : thresholdsForEvent )
                {
                        pOutputEvent->add_threshold( threshold );
                }
        }

        // I should have the correct number of events in the protobuf version of
        // the sample now. I'll run through and set the event weights as well, but
        // I'll only add it if it's different to 1. I think this saves space in
        // the file.
        for( int eventNumber=0; eventNumber<outputSample.event_size(); ++eventNumber )
        {
                if( pImple_->weights[eventNumber]!=1 )
                {
                        l1menuprotobuf::Event* pOutputEvent=outputSample.mutable_event(eventNumber);
                        pOutputEvent->set_weight( pImple_->weights[eventNumber] );
                }
        }


        //
        // Everything should be set up in the class now, so I can open the
        // output file and write to it.
        //
        std::ofstream outputFile( filename );
        outputSample.SerializeToOstream( &outputFile );
}

size_t l1menu::ReducedMenuSample::numberOfEvents() const
{
        return pImple_->numberOfEvents;
}

const l1menu::IReducedEvent& l1menu::ReducedMenuSample::getEvent( size_t eventNumber ) const
{
        pImple_->event.pThresholdValues=&pImple_->thresholdsForAllEvents[eventNumber];
        pImple_->event.pWeight=&pImple_->weights[eventNumber];
        return pImple_->event;
}

const l1menu::TriggerMenu& l1menu::ReducedMenuSample::getTriggerMenu() const
{
        return pImple_->triggerMenu;
}

bool l1menu::ReducedMenuSample::containsTrigger( const l1menu::ITrigger& trigger, bool allowOlderVersion ) const
{
        // Loop over all of the triggers in the menu, and see if there is one
        // where the name and version match.
        for( size_t triggerNumber=0; triggerNumber<pImple_->triggerMenu.numberOfTriggers(); ++triggerNumber )
        {
                const l1menu::ITrigger& triggerInMenu=pImple_->triggerMenu.getTrigger(triggerNumber);
                if( triggerInMenu.name()!=trigger.name() ) continue;
                if( allowOlderVersion )
                {
                        if( triggerInMenu.version()>trigger.version() ) continue;
                }
                else
                {
                        if( triggerInMenu.version()!=trigger.version() ) continue;
                }

                // If control got this far then there is a trigger with the required name
                // and sufficient version. I now need to check all of the non threshold parameters
                // to make sure they match, i.e. make sure the ReducedSample was made with the same
                // eta cuts or whatever.
                // I don't care if the thresholds don't match because that's what's stored in the
                // ReducedMenuSample.
                std::vector<std::string> parameterNames=getNonThresholdParameterNames( trigger );
                bool allParametersMatch=true;
                for( const auto& parameterName : parameterNames )
                {
                        if( trigger.parameter(parameterName)!=triggerInMenu.parameter(parameterName) ) allParametersMatch=false;
                }

                if( allParametersMatch ) return true;
        } // end of loop over triggers

        // If control got this far then no trigger was found that matched
        return false;
}

const std::map<std::string,size_t> l1menu::ReducedMenuSample::getTriggerParameterIdentifiers( const l1menu::ITrigger& trigger, bool allowOlderVersion ) const
{
        std::map<std::string,size_t> returnValue;

        // Need to find out how many parameters there are for each event. Basically the sum
        // of the number of thresholds for all triggers.
        size_t parameterNumber=0;
        bool triggerWasFound=true;
        for( size_t triggerNumber=0; triggerNumber<pImple_->triggerMenu.numberOfTriggers(); ++triggerNumber )
        {
                const l1menu::ITrigger& triggerInMenu=pImple_->triggerMenu.getTrigger(triggerNumber);

                triggerWasFound=true; // Set to true, then back to false if any of the tests fail
                // See if this trigger in the menu is the same as the one passed as a parameter
                if( triggerInMenu.name()!=trigger.name() ) triggerWasFound=false;
                if( allowOlderVersion )
                {
                        if( triggerInMenu.version()>trigger.version() ) triggerWasFound=false;
                }
                else
                {
                        if( triggerInMenu.version()!=trigger.version() ) triggerWasFound=false;
                }

                // If control got this far then there is a trigger with the required name
                // and sufficient version. I now need to check all of the non threshold parameters
                // to make sure they match, i.e. make sure the ReducedSample was made with the same
                // eta cuts or whatever.
                // I don't care if the thresholds don't match because that's what's stored in the
                // ReducedMenuSample.
                if( triggerWasFound ) // Trigger can still fail, but no point doing this check if it already has
                {
                        std::vector<std::string> parameterNames=getNonThresholdParameterNames( trigger );
                        for( const auto& parameterName : parameterNames )
                        {
                                if( trigger.parameter(parameterName)!=triggerInMenu.parameter(parameterName) ) triggerWasFound=false;
                        }
                }

                std::vector<std::string> thresholdNames=l1menu::getThresholdNames(trigger);
                if( triggerWasFound )
                {
                        for( const auto& thresholdName : thresholdNames )
                        {
                                returnValue[thresholdName]=parameterNumber;
                                ++parameterNumber;
                        }
                        break;
                }
                else parameterNumber+=thresholdNames.size();
        }

        // There could conceivably be a trigger that was found but has no thresholds
        // (I guess - it would be a pretty pointless trigger though). To indicate the
        // difference between that and a trigger that wasn't found I'll respectively
        // return the empty vector or throw an exception.
        if( !triggerWasFound ) throw std::runtime_error( "l1menu::ReducedMenuSample::getTriggerParameterIdentifiers() called for a trigger that was not used to create the sample" );

        return returnValue;
}
Revision:	1.2
Committed:	Fri May 31 01:29:10 2013 UTC (11 years, 11 months ago) by grimes
Branch:	MAIN
Changes since 1.1:	+291 -7 lines
Log Message:	Various improvements, including protobuf input and output for ReducedMenuSamples.
#	User	Rev	Content
1	grimes	1.1	#include "l1menu/ReducedMenuSample.h"
2
3			#include <vector>
4	grimes	1.2	#include <stdexcept>
5			#include <fstream>
6	grimes	1.1	#include "l1menu/IReducedEvent.h"
7			#include "l1menu/MenuSample.h"
8			#include "l1menu/TriggerMenu.h"
9	grimes	1.2	#include "l1menu/ITrigger.h"
10	grimes	1.1	#include "l1menu/tools.h"
11	grimes	1.2	#include "protobuf/l1menu.pb.h"
12	grimes	1.1
13			namespace // unnamed namespace
14			{
15			class ReducedEventImplementation : public l1menu::IReducedEvent
16			{
17			public:
18			virtual ~ReducedEventImplementation() {}
19	grimes	1.2	virtual float parameterValue( size_t parameterNumber ) const { return pThresholdValues->at(parameterNumber); }
20			virtual float weight() const { return *pWeight; }
21			void setWeight( float newWeight ) { *pWeight=newWeight; }
22	grimes	1.1	std::vector<float>* pThresholdValues;
23	grimes	1.2	float* pWeight;
24	grimes	1.1	};
25			}
26
27			namespace l1menu
28			{
29			/** @brief Private members for the ReducedMenuSample class
30			*
31			* @author Mark Grimes (mark.grimes@bristol.ac.uk)
32			* @date 28/May/2013
33			*/
34			class ReducedMenuSamplePrivateMembers
35			{
36			public:
37	grimes	1.2	ReducedMenuSamplePrivateMembers( size_t newNumberOfEvents, size_t numberOfParameters, const l1menu::TriggerMenu newTriggerMenu )
38			: thresholdsForAllEvents( newNumberOfEvents, std::vector<float>(numberOfParameters) ),
39			weights( newNumberOfEvents ), numberOfEvents( newNumberOfEvents ), triggerMenu( newTriggerMenu )
40	grimes	1.1	{
41	grimes	1.2	// Run through every event and default every weight to 1.
42			for( auto& eventWeight : weights )
43			{
44			eventWeight=1;
45			}
46	grimes	1.1	}
47			std::vector< std::vector<float> > thresholdsForAllEvents;
48	grimes	1.2	std::vector<float> weights;
49	grimes	1.1	::ReducedEventImplementation event;
50			size_t numberOfEvents;
51	grimes	1.2	const l1menu::TriggerMenu triggerMenu;
52	grimes	1.1	};
53			}
54
55			l1menu::ReducedMenuSample::ReducedMenuSample( const l1menu::MenuSample& originalSample, const l1menu::TriggerMenu& triggerMenu )
56			{
57			size_t numberOfEvents=originalSample.numberOfEvents();
58			// Need to find out how many parameters there are for each event. Basically the sum
59			// of the number of thresholds for all triggers.
60			size_t numberOfParameters=0;
61			for( size_t triggerNumber=0; triggerNumber<triggerMenu.numberOfTriggers(); ++triggerNumber )
62			{
63			const l1menu::ITrigger& trigger=triggerMenu.getTrigger(triggerNumber);
64			numberOfParameters+=l1menu::getThresholdNames(trigger).size();
65			}
66
67			// Now I know how many events there are and how many parameters, I can create the pimple
68			// with the correct parameters.
69	grimes	1.2	pImple_.reset( new l1menu::ReducedMenuSamplePrivateMembers( numberOfEvents, numberOfParameters, triggerMenu ) );
70
71			//
72			// Now I've set the storage to the correct size, run through each event
73			// and fill with the correct values.
74			//
75			for( size_t eventNumber=0; eventNumber<numberOfEvents; ++eventNumber )
76			{
77			const l1menu::IEvent& event=originalSample.getEvent( eventNumber );
78			std::vector<float>& parameters=pImple_->thresholdsForAllEvents[eventNumber];
79
80			size_t parameterNumber=0;
81			// Loop over all of the triggers
82			for( size_t triggerNumber=0; triggerNumber<triggerMenu.numberOfTriggers(); ++triggerNumber )
83			{
84			std::unique_ptr<l1menu::ITrigger> pTrigger=triggerMenu.getTriggerCopy(triggerNumber);
85			std::vector<std::string> thresholdNames=getThresholdNames(*pTrigger);
86
87			try
88			{
89			setTriggerThresholdsAsTightAsPossible( event, *pTrigger, 0.001 );
90			// Set all of the parameters to match the thresholds in the trigger
91			for( const auto& thresholdName : thresholdNames )
92			{
93			parameters[parameterNumber]=pTrigger->parameter(thresholdName);
94			++parameterNumber;
95			}
96			}
97			catch( std::exception& error )
98			{
99			// setTriggerThresholdsAsTightAsPossible() couldn't find thresholds so record
100			// -1 for everything.
101			for( size_t index=0; index<thresholdNames.size(); ++index )
102			{
103			parameters[parameterNumber]=-1;
104			++parameterNumber;
105			}
106			} // end of try block that sets the trigger thresholds
107
108			} // end of loop over triggers
109			} // end of loop over events
110			}
111
112			l1menu::ReducedMenuSample::~ReducedMenuSample()
113			{
114			// No operation. Just need one defined otherwise the default one messes up
115			// the unique_ptr deletion because ReducedMenuSamplePrivateMembers isn't
116			// defined elsewhere.
117			}
118
119			l1menu::ReducedMenuSample::ReducedMenuSample( const std::string& filename )
120			{
121			GOOGLE_PROTOBUF_VERIFY_VERSION;
122
123			l1menuprotobuf::Sample inputSample;
124			{ // new block to limit scope of variables
125			std::ifstream inputFile( filename );
126			inputSample.ParseFromIstream( &inputFile );
127			}
128
129			l1menu::TriggerMenu triggerMenu;
130
131			size_t totalNumberOfThresholds=0;
132
133			for( int triggerNumber=0; triggerNumber<inputSample.trigger_size(); ++triggerNumber )
134			{
135			const l1menuprotobuf::Trigger& inputTrigger=inputSample.trigger(triggerNumber);
136
137			triggerMenu.addTrigger( inputTrigger.name(), inputTrigger.version() );
138			// Get a reference to the trigger I just created
139			l1menu::ITrigger& trigger=triggerMenu.getTrigger(triggerNumber);
140
141			// Run through all of the parameters and set them to what they were
142			// when the sample was made.
143			for( int parameterNumber=0; parameterNumber<inputTrigger.parameter_size(); ++parameterNumber )
144			{
145			const auto& inputParameter=inputTrigger.parameter(parameterNumber);
146			trigger.parameter(inputParameter.name())=inputParameter.value();
147			}
148
149			// I should probably check the threshold names exist. At the moment I just see how
150			// many there are so that can initialise the buffer that holds the event data.
151			totalNumberOfThresholds+=inputTrigger.threshold_size();
152			}
153
154			// Now I have the menu set up as much as I need it (thresholds aren't set
155			// but I don't care about those). I can initialise the ReducedMenuSamplePrivateMembers
156			// pImple_ with the menu and the correct sizes for the data buffer.
157			pImple_.reset( new l1menu::ReducedMenuSamplePrivateMembers( inputSample.event_size(), totalNumberOfThresholds, triggerMenu ) );
158
159			// Now run over each event from the input file
160			for( int eventNumber=0; eventNumber<inputSample.event_size(); ++eventNumber )
161			{
162			auto& thresholdsForEvent=pImple_->thresholdsForAllEvents[eventNumber];
163			const auto& inputEvent=inputSample.event(eventNumber);
164
165			for( int thresholdNumber=0; thresholdNumber<inputEvent.threshold_size(); ++thresholdNumber )
166			{
167			thresholdsForEvent[thresholdNumber]=inputEvent.threshold(thresholdNumber);
168			}
169
170			// See if the weight was stored and set it if it has
171			if( inputEvent.has_weight() ) pImple_->weights[eventNumber]=inputEvent.weight();
172			}
173			}
174
175			void l1menu::ReducedMenuSample::saveToFile( const std::string& filename ) const
176			{
177			GOOGLE_PROTOBUF_VERIFY_VERSION;
178
179			l1menuprotobuf::Sample outputSample;
180
181			for( size_t triggerNumber=0; triggerNumber<pImple_->triggerMenu.numberOfTriggers(); ++triggerNumber )
182			{
183			const l1menu::ITrigger& trigger=pImple_->triggerMenu.getTrigger(triggerNumber);
184
185			l1menuprotobuf::Trigger* pOutputTrigger=outputSample.add_trigger();
186			pOutputTrigger->set_name( trigger.name() );
187			pOutputTrigger->set_version( trigger.version() );
188
189			// For the parameters that aren't thresholds, record the name and value.
190			const auto parameterNames=l1menu::getNonThresholdParameterNames(trigger);
191			for( const auto& parameterName : parameterNames )
192			{
193			l1menuprotobuf::Trigger_TriggerParameter* pOutputParameter=pOutputTrigger->add_parameter();
194			pOutputParameter->set_name(parameterName);
195			pOutputParameter->set_value( trigger.parameter(parameterName) );
196			}
197
198			// For the parameters that are thresholds, just record the name. The value is
199			// recorded in each event.
200			const auto thresholdNames=l1menu::getThresholdNames(trigger);
201			for( const auto& thresholdName : thresholdNames ) pOutputTrigger->add_threshold(thresholdName);
202
203			} // end of loop over triggers
204
205			//
206			// I've done everything for what is effectively the header. I now need
207			// to run through each event and record the thresholds for each one.
208			//
209			for( const auto& thresholdsForEvent : pImple_->thresholdsForAllEvents )
210			{
211			l1menuprotobuf::Event* pOutputEvent=outputSample.add_event();
212			for( const auto& threshold : thresholdsForEvent )
213			{
214			pOutputEvent->add_threshold( threshold );
215			}
216			}
217
218			// I should have the correct number of events in the protobuf version of
219			// the sample now. I'll run through and set the event weights as well, but
220			// I'll only add it if it's different to 1. I think this saves space in
221			// the file.
222			for( int eventNumber=0; eventNumber<outputSample.event_size(); ++eventNumber )
223			{
224			if( pImple_->weights[eventNumber]!=1 )
225			{
226			l1menuprotobuf::Event* pOutputEvent=outputSample.mutable_event(eventNumber);
227			pOutputEvent->set_weight( pImple_->weights[eventNumber] );
228			}
229			}
230
231
232			//
233			// Everything should be set up in the class now, so I can open the
234			// output file and write to it.
235			//
236			std::ofstream outputFile( filename );
237			outputSample.SerializeToOstream( &outputFile );
238	grimes	1.1	}
239
240			size_t l1menu::ReducedMenuSample::numberOfEvents() const
241			{
242			return pImple_->numberOfEvents;
243			}
244
245			const l1menu::IReducedEvent& l1menu::ReducedMenuSample::getEvent( size_t eventNumber ) const
246			{
247			pImple_->event.pThresholdValues=&pImple_->thresholdsForAllEvents[eventNumber];
248	grimes	1.2	pImple_->event.pWeight=&pImple_->weights[eventNumber];
249	grimes	1.1	return pImple_->event;
250			}
251	grimes	1.2
252			const l1menu::TriggerMenu& l1menu::ReducedMenuSample::getTriggerMenu() const
253			{
254			return pImple_->triggerMenu;
255			}
256
257			bool l1menu::ReducedMenuSample::containsTrigger( const l1menu::ITrigger& trigger, bool allowOlderVersion ) const
258			{
259			// Loop over all of the triggers in the menu, and see if there is one
260			// where the name and version match.
261			for( size_t triggerNumber=0; triggerNumber<pImple_->triggerMenu.numberOfTriggers(); ++triggerNumber )
262			{
263			const l1menu::ITrigger& triggerInMenu=pImple_->triggerMenu.getTrigger(triggerNumber);
264			if( triggerInMenu.name()!=trigger.name() ) continue;
265			if( allowOlderVersion )
266			{
267			if( triggerInMenu.version()>trigger.version() ) continue;
268			}
269			else
270			{
271			if( triggerInMenu.version()!=trigger.version() ) continue;
272			}
273
274			// If control got this far then there is a trigger with the required name
275			// and sufficient version. I now need to check all of the non threshold parameters
276			// to make sure they match, i.e. make sure the ReducedSample was made with the same
277			// eta cuts or whatever.
278			// I don't care if the thresholds don't match because that's what's stored in the
279			// ReducedMenuSample.
280			std::vector<std::string> parameterNames=getNonThresholdParameterNames( trigger );
281			bool allParametersMatch=true;
282			for( const auto& parameterName : parameterNames )
283			{
284			if( trigger.parameter(parameterName)!=triggerInMenu.parameter(parameterName) ) allParametersMatch=false;
285			}
286
287			if( allParametersMatch ) return true;
288			} // end of loop over triggers
289
290			// If control got this far then no trigger was found that matched
291			return false;
292			}
293
294			const std::map<std::string,size_t> l1menu::ReducedMenuSample::getTriggerParameterIdentifiers( const l1menu::ITrigger& trigger, bool allowOlderVersion ) const
295			{
296			std::map<std::string,size_t> returnValue;
297
298			// Need to find out how many parameters there are for each event. Basically the sum
299			// of the number of thresholds for all triggers.
300			size_t parameterNumber=0;
301			bool triggerWasFound=true;
302			for( size_t triggerNumber=0; triggerNumber<pImple_->triggerMenu.numberOfTriggers(); ++triggerNumber )
303			{
304			const l1menu::ITrigger& triggerInMenu=pImple_->triggerMenu.getTrigger(triggerNumber);
305
306			triggerWasFound=true; // Set to true, then back to false if any of the tests fail
307			// See if this trigger in the menu is the same as the one passed as a parameter
308			if( triggerInMenu.name()!=trigger.name() ) triggerWasFound=false;
309			if( allowOlderVersion )
310			{
311			if( triggerInMenu.version()>trigger.version() ) triggerWasFound=false;
312			}
313			else
314			{
315			if( triggerInMenu.version()!=trigger.version() ) triggerWasFound=false;
316			}
317
318			// If control got this far then there is a trigger with the required name
319			// and sufficient version. I now need to check all of the non threshold parameters
320			// to make sure they match, i.e. make sure the ReducedSample was made with the same
321			// eta cuts or whatever.
322			// I don't care if the thresholds don't match because that's what's stored in the
323			// ReducedMenuSample.
324			if( triggerWasFound ) // Trigger can still fail, but no point doing this check if it already has
325			{
326			std::vector<std::string> parameterNames=getNonThresholdParameterNames( trigger );
327			for( const auto& parameterName : parameterNames )
328			{
329			if( trigger.parameter(parameterName)!=triggerInMenu.parameter(parameterName) ) triggerWasFound=false;
330			}
331			}
332
333			std::vector<std::string> thresholdNames=l1menu::getThresholdNames(trigger);
334			if( triggerWasFound )
335			{
336			for( const auto& thresholdName : thresholdNames )
337			{
338			returnValue[thresholdName]=parameterNumber;
339			++parameterNumber;
340			}
341			break;
342			}
343			else parameterNumber+=thresholdNames.size();
344			}
345
346			// There could conceivably be a trigger that was found but has no thresholds
347			// (I guess - it would be a pretty pointless trigger though). To indicate the
348			// difference between that and a trigger that wasn't found I'll respectively
349			// return the empty vector or throw an exception.
350			if( !triggerWasFound ) throw std::runtime_error( "l1menu::ReducedMenuSample::getTriggerParameterIdentifiers() called for a trigger that was not used to create the sample" );
351
352			return returnValue;
353			}