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#ifndef SCIQLOP_ARRAYDATA_H
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#define SCIQLOP_ARRAYDATA_H
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#include "Data/ArrayDataIterator.h"
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#include <Common/SortUtils.h>
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#include <QReadLocker>
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#include <QReadWriteLock>
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#include <QVector>
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#include <memory>
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template <int Dim>
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class ArrayData;
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using DataContainer = QVector<double>;
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namespace arraydata_detail {
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/// Struct used to sort ArrayData
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template <int Dim>
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struct Sort {
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static std::shared_ptr<ArrayData<Dim> > sort(const DataContainer &data, int nbComponents,
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const std::vector<int> &sortPermutation)
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{
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return std::make_shared<ArrayData<Dim> >(
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SortUtils::sort(data, nbComponents, sortPermutation), nbComponents);
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}
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};
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/// Specialization for uni-dimensional ArrayData
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template <>
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struct Sort<1> {
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static std::shared_ptr<ArrayData<1> > sort(const DataContainer &data, int nbComponents,
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const std::vector<int> &sortPermutation)
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{
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Q_UNUSED(nbComponents)
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return std::make_shared<ArrayData<1> >(SortUtils::sort(data, 1, sortPermutation));
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}
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};
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template <int Dim>
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class IteratorValue : public ArrayDataIteratorValue::Impl {
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public:
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explicit IteratorValue(const DataContainer &container, int nbComponents, bool begin)
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: m_It{begin ? container.cbegin() : container.cend()}, m_NbComponents{nbComponents}
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{
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}
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IteratorValue(const IteratorValue &other) = default;
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std::unique_ptr<ArrayDataIteratorValue::Impl> clone() const override
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{
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return std::make_unique<IteratorValue<Dim> >(*this);
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}
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bool equals(const ArrayDataIteratorValue::Impl &other) const override try {
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const auto &otherImpl = dynamic_cast<const IteratorValue &>(other);
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return std::tie(m_It, m_NbComponents) == std::tie(otherImpl.m_It, otherImpl.m_NbComponents);
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}
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catch (const std::bad_cast &) {
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return false;
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}
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void next() override { std::advance(m_It, m_NbComponents); }
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void prev() override { std::advance(m_It, -m_NbComponents); }
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double at(int componentIndex) const override { return *(m_It + componentIndex); }
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double first() const override { return *m_It; }
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double min() const override
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{
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auto values = this->values();
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auto end = values.cend();
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auto it = std::min_element(values.cbegin(), end, [](const auto &v1, const auto &v2) {
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return SortUtils::minCompareWithNaN(v1, v2);
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});
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return it != end ? *it : std::numeric_limits<double>::quiet_NaN();
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}
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double max() const override
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{
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auto values = this->values();
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auto end = values.cend();
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auto it = std::max_element(values.cbegin(), end, [](const auto &v1, const auto &v2) {
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return SortUtils::maxCompareWithNaN(v1, v2);
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});
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return it != end ? *it : std::numeric_limits<double>::quiet_NaN();
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}
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private:
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std::vector<double> values() const
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{
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auto result = std::vector<double>{};
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for (auto i = 0; i < m_NbComponents; ++i) {
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result.push_back(*(m_It + i));
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}
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return result;
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}
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DataContainer::const_iterator m_It;
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int m_NbComponents;
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};
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} // namespace arraydata_detail
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/**
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* @brief The ArrayData class represents a dataset for a data series.
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*
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* A dataset can be unidimensional or two-dimensional. This property is determined by the Dim
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* template-parameter. In a case of a two-dimensional dataset, each dataset component has the same
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* number of values
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*
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* @tparam Dim the dimension of the ArrayData (one or two)
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* @sa IDataSeries
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*/
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template <int Dim>
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class ArrayData {
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public:
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// ///// //
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// Ctors //
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// ///// //
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/**
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* Ctor for a unidimensional ArrayData
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* @param data the data the ArrayData will hold
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*/
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template <int D = Dim, typename = std::enable_if_t<D == 1> >
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explicit ArrayData(DataContainer data) : m_Data{std::move(data)}, m_NbComponents{1}
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{
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}
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/**
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* Ctor for a two-dimensional ArrayData. The number of components (number of lines) must be
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* greater than 2 and must be a divisor of the total number of data in the vector
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* @param data the data the ArrayData will hold
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* @param nbComponents the number of components
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* @throws std::invalid_argument if the number of components is less than 2 or is not a divisor
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* of the size of the data
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*/
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template <int D = Dim, typename = std::enable_if_t<D == 2> >
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explicit ArrayData(DataContainer data, int nbComponents)
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: m_Data{std::move(data)}, m_NbComponents{nbComponents}
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{
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if (nbComponents < 2) {
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throw std::invalid_argument{
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QString{"A multidimensional ArrayData must have at least 2 components (found: %1)"}
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.arg(nbComponents)
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.toStdString()};
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}
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if (m_Data.size() % m_NbComponents != 0) {
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throw std::invalid_argument{QString{
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"The number of components (%1) is inconsistent with the total number of data (%2)"}
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.arg(m_Data.size(), nbComponents)
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.toStdString()};
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}
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}
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/// Copy ctor
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explicit ArrayData(const ArrayData &other)
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{
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QReadLocker otherLocker{&other.m_Lock};
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m_Data = other.m_Data;
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m_NbComponents = other.m_NbComponents;
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}
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// /////////////// //
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// General methods //
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// /////////////// //
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/**
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* Merges into the array data an other array data. The two array datas must have the same number
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* of components so the merge can be done
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* @param other the array data to merge with
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* @param prepend if true, the other array data is inserted at the beginning, otherwise it is
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* inserted at the end
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*/
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void add(const ArrayData<Dim> &other, bool prepend = false)
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{
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QWriteLocker locker{&m_Lock};
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QReadLocker otherLocker{&other.m_Lock};
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if (m_NbComponents != other.componentCount()) {
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return;
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}
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if (prepend) {
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auto otherDataSize = other.m_Data.size();
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m_Data.insert(m_Data.begin(), otherDataSize, 0.);
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for (auto i = 0; i < otherDataSize; ++i) {
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m_Data.replace(i, other.m_Data.at(i));
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}
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}
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else {
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m_Data.append(other.m_Data);
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}
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}
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void clear()
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{
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QWriteLocker locker{&m_Lock};
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m_Data.clear();
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}
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int componentCount() const noexcept { return m_NbComponents; }
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/// @return the size (i.e. number of values) of a single component
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/// @remarks in a case of a two-dimensional ArrayData, each component has the same size
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int size() const
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{
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QReadLocker locker{&m_Lock};
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return m_Data.size() / m_NbComponents;
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}
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std::shared_ptr<ArrayData<Dim> > sort(const std::vector<int> &sortPermutation)
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{
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QReadLocker locker{&m_Lock};
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return arraydata_detail::Sort<Dim>::sort(m_Data, m_NbComponents, sortPermutation);
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}
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// ///////// //
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// Iterators //
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// ///////// //
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ArrayDataIterator cbegin() const
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{
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return ArrayDataIterator{ArrayDataIteratorValue{
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std::make_unique<arraydata_detail::IteratorValue<Dim> >(m_Data, m_NbComponents, true)}};
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}
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ArrayDataIterator cend() const
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{
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return ArrayDataIterator{
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ArrayDataIteratorValue{std::make_unique<arraydata_detail::IteratorValue<Dim> >(
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m_Data, m_NbComponents, false)}};
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}
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// ///////////// //
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// 1-dim methods //
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// ///////////// //
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/**
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* @return the data at a specified index
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* @remarks index must be a valid position
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* @remarks this method is only available for a unidimensional ArrayData
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*/
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template <int D = Dim, typename = std::enable_if_t<D == 1> >
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double at(int index) const noexcept
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{
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QReadLocker locker{&m_Lock};
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return m_Data.at(index);
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}
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/**
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* @return the data as a vector, as a const reference
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* @remarks this method is only available for a unidimensional ArrayData
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*/
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template <int D = Dim, typename = std::enable_if_t<D == 1> >
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const QVector<double> &cdata() const noexcept
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{
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QReadLocker locker{&m_Lock};
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return m_Data.at(0);
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}
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/**
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* @return the data as a vector
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* @remarks this method is only available for a unidimensional ArrayData
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*/
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template <int D = Dim, typename = std::enable_if_t<D == 1> >
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QVector<double> data() const noexcept
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{
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QReadLocker locker{&m_Lock};
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return m_Data[0];
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}
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// ///////////// //
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// 2-dim methods //
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// ///////////// //
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/**
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* @return the data
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* @remarks this method is only available for a two-dimensional ArrayData
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*/
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template <int D = Dim, typename = std::enable_if_t<D == 2> >
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DataContainer data() const noexcept
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{
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QReadLocker locker{&m_Lock};
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return m_Data;
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}
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private:
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DataContainer m_Data;
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/// Number of components (lines). Is always 1 in a 1-dim ArrayData
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int m_NbComponents;
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mutable QReadWriteLock m_Lock;
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};
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#endif // SCIQLOP_ARRAYDATA_H
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