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#include "Variable/VariableController2.h"
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#include "Variable/VariableSynchronizationGroup2.h"
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#include <Common/containers.h>
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#include <Common/debug.h>
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#include <Data/DataProviderParameters.h>
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#include <Data/DateTimeRangeHelper.h>
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#include <Variable/VariableCacheStrategyFactory.h>
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class VariableController2::VariableController2Private
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{
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QMap<QUuid,std::shared_ptr<Variable>> _variables;
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QMap<QUuid,std::shared_ptr<IDataProvider>> _providers;
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QMap<QUuid,std::shared_ptr<VariableSynchronizationGroup2>> _synchronizationGroups;
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std::unique_ptr<VariableCacheStrategy> _cacheStrategy;
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bool p_contains(const std::shared_ptr<Variable>& variable)
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{
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return _providers.contains(variable->ID());
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}
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bool v_contains(const std::shared_ptr<Variable>& variable)
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{
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return SciQLop::containers::contains(this->_variables, variable);
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}
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bool sg_contains(const std::shared_ptr<Variable>& variable)
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{
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return _synchronizationGroups.contains(variable->ID());
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}
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void _changeRange(const std::shared_ptr<Variable>& var, DateTimeRange r)
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{
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auto provider = _providers[var->ID()];
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DateTimeRange newCacheRange;
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std::vector<DateTimeRange> missingRanges;
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if(DateTimeRangeHelper::hasnan(var->cacheRange()))
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{
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newCacheRange = _cacheStrategy->computeRange(r,r);
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missingRanges = {newCacheRange};
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}
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else
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{
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newCacheRange = _cacheStrategy->computeRange(var->cacheRange(),r);
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missingRanges = newCacheRange - var->cacheRange();
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}
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for(auto range:missingRanges)
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{
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auto data = provider->getData(DataProviderParameters{{range},var->metadata()});
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var->mergeDataSeries(data);
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}
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var->setCacheRange(newCacheRange);
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var->setRange(r);
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}
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public:
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VariableController2Private(QObject* parent=Q_NULLPTR)
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:_cacheStrategy(VariableCacheStrategyFactory::createCacheStrategy(CacheStrategy::SingleThreshold))
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{
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Q_UNUSED(parent);
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}
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~VariableController2Private() = default;
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std::shared_ptr<Variable> createVariable(const QString &name, const QVariantHash &metadata, std::shared_ptr<IDataProvider> provider)
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{
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auto newVar = std::make_shared<Variable>(name,metadata);
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this->_variables[newVar->ID()] = newVar;
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this->_providers[newVar->ID()] = std::move(provider);
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this->_synchronizationGroups[newVar->ID()] = std::make_shared<VariableSynchronizationGroup2>(newVar->ID());
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return newVar;
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}
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void deleteVariable(const std::shared_ptr<Variable>& variable)
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{
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/*
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* Removing twice a var is ok but a var without provider has to be a hard error
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* this means we got the var controller in an inconsistent state
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*/
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if(v_contains(variable))
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this->_variables.remove(variable->ID());
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if(p_contains(variable))
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this->_providers.remove(variable->ID());
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else
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SCIQLOP_ERROR(VariableController2Private, "No provider found for given variable");
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}
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void asyncChangeRange(const std::shared_ptr<Variable>& variable, const DateTimeRange& r)
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{
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}
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void changeRange(const std::shared_ptr<Variable>& variable, DateTimeRange r)
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{
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if(p_contains(variable))
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{
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if(!DateTimeRangeHelper::hasnan(r))
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{
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auto group = _synchronizationGroups[variable->ID()];
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if(auto transformation = DateTimeRangeHelper::computeTransformation(variable->range(),r);
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transformation.has_value())
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{
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for(auto varId:group->variables())
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{
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auto var = _variables[varId];
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auto newRange = var->range().transform(transformation.value());
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_changeRange(var,newRange);
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}
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}
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else // force new range to all variables -> may be weird if more than one var in the group
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// @TODO ensure that there is no side effects
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{
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for(auto varId:group->variables())
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{
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auto var = _variables[varId];
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_changeRange(var,r);
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}
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}
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}
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else
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{
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SCIQLOP_ERROR(VariableController2Private, "Invalid range containing NaN");
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}
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}
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else
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{
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SCIQLOP_ERROR(VariableController2Private, "No provider found for given variable");
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}
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}
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void synchronize(const std::shared_ptr<Variable>& var, const std::shared_ptr<Variable>& with)
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{
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if(v_contains(var) && v_contains(with))
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{
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if(sg_contains(var) && sg_contains(with))
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{
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auto dest_group = this->_synchronizationGroups[with->ID()];
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this->_synchronizationGroups[var->ID()] = dest_group;
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dest_group->addVariable(var->ID());
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}
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else
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{
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SCIQLOP_ERROR(VariableController2Private, "At least one of the given variables isn't in a sync group");
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}
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}
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else
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{
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SCIQLOP_ERROR(VariableController2Private, "At least one of the given variables is not found");
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}
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}
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const std::set<std::shared_ptr<Variable>> variables()
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{
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std::set<std::shared_ptr<Variable>> vars;
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for(const auto &var:_variables)
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{
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vars.insert(var);
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}
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return vars;
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}
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};
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VariableController2::VariableController2()
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:impl{spimpl::make_unique_impl<VariableController2Private>()}
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{}
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std::shared_ptr<Variable> VariableController2::createVariable(const QString &name, const QVariantHash &metadata, const std::shared_ptr<IDataProvider>& provider, const DateTimeRange &range)
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{
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auto var = impl->createVariable(name, metadata, provider);
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emit variableAdded(var);
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if(!DateTimeRangeHelper::hasnan(range))
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impl->changeRange(var,range);
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else
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SCIQLOP_ERROR(VariableController2, "Creating a variable with default constructed DateTimeRange is an error");
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return var;
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}
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void VariableController2::deleteVariable(const std::shared_ptr<Variable>& variable)
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{
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impl->deleteVariable(variable);
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emit variableDeleted(variable);
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}
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void VariableController2::changeRange(const std::shared_ptr<Variable>& variable, const DateTimeRange& r)
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{
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impl->changeRange(variable, r);
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}
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void VariableController2::asyncChangeRange(const std::shared_ptr<Variable> &variable, const DateTimeRange &r)
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{
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impl->asyncChangeRange(variable, r);
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}
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const std::set<std::shared_ptr<Variable> > VariableController2::variables()
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{
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return impl->variables();
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}
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void VariableController2::synchronize(const std::shared_ptr<Variable> &var, const std::shared_ptr<Variable> &with)
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{
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impl->synchronize(var, with);
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}
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