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#include "l1menu/TriggerTable.h"
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#include "l1menu/ITrigger.h"
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#include <iostream>
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#include <sstream>
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#include <stdexcept>
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std::vector<l1menu::TriggerTable::TriggerRegistryEntry> l1menu::TriggerTable::registeredTriggers;
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bool l1menu::TriggerTable::TriggerDetails::operator==( const l1menu::TriggerTable::TriggerDetails& otherTriggerDetails ) const
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{
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return name==otherTriggerDetails.name && version==otherTriggerDetails.version;
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}
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std::auto_ptr<l1menu::ITrigger> l1menu::TriggerTable::getTrigger( const std::string& name ) const
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{
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// std::cout << "Looking for latest version of " << name << std::endl;
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std::auto_ptr<l1menu::ITrigger> returnValue;
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unsigned int highestVersionNumber=0; // The highest version of the trigger encountered in the list so far
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for( std::vector<TriggerRegistryEntry>::const_iterator iRegistryEntry=registeredTriggers.begin(); iRegistryEntry!=registeredTriggers.end(); ++iRegistryEntry )
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{
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if( iRegistryEntry->details.name==name && iRegistryEntry->details.version>=highestVersionNumber )
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{
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returnValue=(*iRegistryEntry->creationFunctionPointer)();
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highestVersionNumber=iRegistryEntry->details.version;
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}
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}
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return returnValue;
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}
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std::auto_ptr<l1menu::ITrigger> l1menu::TriggerTable::getTrigger( const std::string& name, unsigned int version ) const
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{
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TriggerDetails requestedTriggerDetails{ name, version };
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// Delegate to the other overload
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return getTrigger( requestedTriggerDetails );
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}
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std::auto_ptr<l1menu::ITrigger> l1menu::TriggerTable::getTrigger( const TriggerDetails& details ) const
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{
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// std::cout << "Looking for version " << details.version << " of " << details.name << std::endl;
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for( std::vector<TriggerRegistryEntry>::const_iterator iRegistryEntry=registeredTriggers.begin(); iRegistryEntry!=registeredTriggers.end(); ++iRegistryEntry )
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{
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if( iRegistryEntry->details==details )
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{
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return (*iRegistryEntry->creationFunctionPointer)();
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}
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}
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// If program flow has reached this point then there are no triggers registered that
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// match the criteria. Return an empty pointer.
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return std::auto_ptr<l1menu::ITrigger>();
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}
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std::auto_ptr<l1menu::ITrigger> l1menu::TriggerTable::copyTrigger( const l1menu::ITrigger& triggerToCopy ) const
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{
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// First create a trigger with the matching name and version
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std::auto_ptr<l1menu::ITrigger> newTrigger=getTrigger( triggerToCopy.name(), triggerToCopy.version() );
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if( newTrigger.get()==NULL ) throw std::runtime_error( "Unable to copy trigger "+triggerToCopy.name() );
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//
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// Now copy all of the parameters over.
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//
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// Get the parameter names
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std::vector<std::string> parameterNames=triggerToCopy.parameterNames();
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// Then run through and copy the value of each one
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for( std::vector<std::string>::const_iterator iName=parameterNames.begin(); iName!=parameterNames.end(); ++iName )
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{
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newTrigger->parameter(*iName)=triggerToCopy.parameter(*iName);
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}
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return newTrigger;
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}
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std::vector<l1menu::TriggerTable::TriggerDetails> l1menu::TriggerTable::listTriggers() const
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{
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std::vector<TriggerDetails> returnValue;
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// Copy the relevant parts from the registered triggers into the return value
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for( std::vector<TriggerRegistryEntry>::const_iterator iRegistryEntry=registeredTriggers.begin(); iRegistryEntry!=registeredTriggers.end(); ++iRegistryEntry )
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{
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returnValue.push_back( iRegistryEntry->details );
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}
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return returnValue;
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}
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void l1menu::TriggerTable::registerTrigger( const std::string name, unsigned int version, std::auto_ptr<l1menu::ITrigger> (*creationFunctionPointer)() )
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{
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std::cout << "Registering trigger " << name << " with version " << version << std::endl;
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TriggerDetails newTriggerDetails{ name, version };
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// First make sure there is not a trigger with the same name and version already registered
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for( std::vector<TriggerRegistryEntry>::const_iterator iRegistryEntry=registeredTriggers.begin(); iRegistryEntry!=registeredTriggers.end(); ++iRegistryEntry )
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{
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if( iRegistryEntry->details==newTriggerDetails )
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{
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std::stringstream errorMessage;
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errorMessage << "A trigger called \"" << newTriggerDetails.name << "\" with version " << newTriggerDetails.version << " has already been registered in the trigger table.";
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throw std::logic_error( errorMessage.str() );
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}
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}
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// If program flow has reached this point then there are no triggers with the same name
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// and version already registered, so it's okay to add the trigger as requested.
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registeredTriggers.push_back( TriggerRegistryEntry{newTriggerDetails,creationFunctionPointer} );
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}
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