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#include "FuzzingOperations.h"
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#include "FuzzingUtils.h"
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#include <Data/IDataProvider.h>
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#include <Variable/Variable.h>
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#include <Variable/VariableController.h>
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#include <QUuid>
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#include <functional>
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Q_LOGGING_CATEGORY(LOG_FuzzingOperations, "FuzzingOperations")
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namespace {
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struct CreateOperation : public IFuzzingOperation {
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bool canExecute(VariableId variableId, const FuzzingState &fuzzingState) const override
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{
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// A variable can be created only if it doesn't exist yet
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return fuzzingState.variableState(variableId).m_Variable == nullptr;
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}
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void execute(VariableId variableId, FuzzingState &fuzzingState,
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VariableController &variableController,
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const Properties &properties) const override
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{
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// Retrieves metadata pool from properties, and choose one of the metadata entries to
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// associate it with the variable
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auto metaDataPool = properties.value(METADATA_POOL_PROPERTY).value<MetadataPool>();
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auto variableMetadata = RandomGenerator::instance().randomChoice(metaDataPool);
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// Retrieves provider
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auto variableProvider
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= properties.value(PROVIDER_PROPERTY).value<std::shared_ptr<IDataProvider> >();
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auto variableName = QString{"Var_%1"}.arg(QUuid::createUuid().toString());
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qCInfo(LOG_FuzzingOperations()).noquote()
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<< "Creating variable" << variableName << "(metadata:" << variableMetadata << ")...";
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auto newVariable
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= variableController.createVariable(variableName, variableMetadata, variableProvider);
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// Updates variable's state
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auto &variableState = fuzzingState.variableState(variableId);
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variableState.m_Range = properties.value(INITIAL_RANGE_PROPERTY).value<SqpRange>();
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std::swap(variableState.m_Variable, newVariable);
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}
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};
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struct DeleteOperation : public IFuzzingOperation {
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bool canExecute(VariableId variableId, const FuzzingState &fuzzingState) const override
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{
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// A variable can be delete only if it exists
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return fuzzingState.variableState(variableId).m_Variable != nullptr;
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}
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void execute(VariableId variableId, FuzzingState &fuzzingState,
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VariableController &variableController, const Properties &) const override
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{
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auto &variableState = fuzzingState.variableState(variableId);
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qCInfo(LOG_FuzzingOperations()).noquote()
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<< "Deleting variable" << variableState.m_Variable->name() << "...";
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variableController.deleteVariable(variableState.m_Variable);
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// Updates variable's state
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variableState.m_Range = INVALID_RANGE;
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variableState.m_Variable = nullptr;
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}
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};
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/**
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* Defines a move operation through a range.
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*
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* A move operation is determined by three functions:
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* - Two 'move' functions, used to indicate in which direction the beginning and the end of a range
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* are going during the operation. These functions will be:
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* -- {<- / <-} for pan left
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* -- {-> / ->} for pan right
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* -- {-> / <-} for zoom in
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* -- {<- / ->} for zoom out
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* - One 'max move' functions, used to compute the max delta at which the operation can move a
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* range, according to a max range. For exemple, for a range of {1, 5} and a max range of {0, 10},
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* max deltas will be:
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* -- {0, 4} for pan left
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* -- {6, 10} for pan right
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* -- {3, 3} for zoom in
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* -- {0, 6} for zoom out (same spacing left and right)
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*/
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struct MoveOperation : public IFuzzingOperation {
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using MoveFunction = std::function<double(double currentValue, double maxValue)>;
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using MaxMoveFunction = std::function<double(const SqpRange &range, const SqpRange &maxRange)>;
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explicit MoveOperation(MoveFunction rangeStartMoveFun, MoveFunction rangeEndMoveFun,
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MaxMoveFunction maxMoveFun,
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const QString &label = QStringLiteral("Move operation"))
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: m_RangeStartMoveFun{std::move(rangeStartMoveFun)},
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m_RangeEndMoveFun{std::move(rangeEndMoveFun)},
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m_MaxMoveFun{std::move(maxMoveFun)},
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m_Label{label}
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{
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}
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bool canExecute(VariableId variableId, const FuzzingState &fuzzingState) const override
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{
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return fuzzingState.variableState(variableId).m_Variable != nullptr;
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}
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void execute(VariableId variableId, FuzzingState &fuzzingState,
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VariableController &variableController,
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const Properties &properties) const override
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{
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auto &variableState = fuzzingState.variableState(variableId);
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auto variable = variableState.m_Variable;
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// Gets the max range defined
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auto maxRange = properties.value(MAX_RANGE_PROPERTY, QVariant::fromValue(INVALID_RANGE))
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.value<SqpRange>();
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auto variableRange = variable->range();
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if (maxRange == INVALID_RANGE || variableRange.m_TStart < maxRange.m_TStart
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|| variableRange.m_TEnd > maxRange.m_TEnd) {
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qCWarning(LOG_FuzzingOperations()) << "Can't execute operation: invalid max range";
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return;
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}
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// Computes the max delta at which the variable can move, up to the limits of the max range
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auto deltaMax = m_MaxMoveFun(variable->range(), maxRange);
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// Generates random delta that will be used to move variable
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auto delta = RandomGenerator::instance().generateDouble(0, deltaMax);
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// Moves variable to its new range
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auto newVariableRange = SqpRange{m_RangeStartMoveFun(variableRange.m_TStart, delta),
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m_RangeEndMoveFun(variableRange.m_TEnd, delta)};
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qCInfo(LOG_FuzzingOperations()).noquote()
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<< "Performing" << m_Label << "on" << variable->name() << "(from" << variableRange
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<< "to" << newVariableRange << ")...";
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variableController.onRequestDataLoading({variable}, newVariableRange, false);
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// Updates variable's state
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variableState.m_Range = newVariableRange;
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}
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MoveFunction m_RangeStartMoveFun;
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MoveFunction m_RangeEndMoveFun;
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MaxMoveFunction m_MaxMoveFun;
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QString m_Label;
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};
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struct UnknownOperation : public IFuzzingOperation {
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bool canExecute(VariableId, const FuzzingState &) const override { return false; }
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void execute(VariableId, FuzzingState &, VariableController &,
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const Properties &) const override
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{
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}
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};
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} // namespace
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std::unique_ptr<IFuzzingOperation> FuzzingOperationFactory::create(FuzzingOperationType type)
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{
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switch (type) {
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case FuzzingOperationType::CREATE:
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return std::make_unique<CreateOperation>();
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case FuzzingOperationType::DELETE:
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return std::make_unique<DeleteOperation>();
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case FuzzingOperationType::PAN_LEFT:
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return std::make_unique<MoveOperation>(
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std::minus<double>(), std::minus<double>(),
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[](const SqpRange &range, const SqpRange &maxRange) {
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return range.m_TStart - maxRange.m_TStart;
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},
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QStringLiteral("Pan left operation"));
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case FuzzingOperationType::PAN_RIGHT:
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return std::make_unique<MoveOperation>(
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std::plus<double>(), std::plus<double>(),
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[](const SqpRange &range, const SqpRange &maxRange) {
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return maxRange.m_TEnd - range.m_TEnd;
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},
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QStringLiteral("Pan right operation"));
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case FuzzingOperationType::ZOOM_IN:
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return std::make_unique<MoveOperation>(
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std::plus<double>(), std::minus<double>(),
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[](const SqpRange &range, const SqpRange &maxRange) {
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Q_UNUSED(maxRange)
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return range.m_TEnd - (range.m_TStart + range.m_TEnd) / 2.;
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},
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QStringLiteral("Zoom in operation"));
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case FuzzingOperationType::ZOOM_OUT:
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return std::make_unique<MoveOperation>(
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std::minus<double>(), std::plus<double>(),
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[](const SqpRange &range, const SqpRange &maxRange) {
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return std::min(range.m_TStart - maxRange.m_TStart,
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maxRange.m_TEnd - range.m_TEnd);
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},
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QStringLiteral("Zoom out operation"));
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default:
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// Default case returns unknown operation
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break;
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}
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return std::make_unique<UnknownOperation>();
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}
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