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#ifndef SCIQLOP_ARRAYDATA_H
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#define SCIQLOP_ARRAYDATA_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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/**
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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.
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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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* Ctor for a unidimensional ArrayData
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* @param nbColumns the number of values 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(int nbColumns) : m_Data{1, QVector<double>{}}
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{
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QWriteLocker locker{&m_Lock};
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m_Data[0].resize(nbColumns);
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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(QVector<double> data) : m_Data{1, QVector<double>{}}
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{
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QWriteLocker locker{&m_Lock};
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m_Data[0] = std::move(data);
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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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QWriteLocker locker{&m_Lock};
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m_Data = other.m_Data;
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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[0].at(index);
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}
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/**
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* Sets a data at a specified index. The index has to be valid to be effective
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* @param index the index to which the data will be set
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* @param data the data to set
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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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void setData(int index, double data) noexcept
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{
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QWriteLocker locker{&m_Lock};
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if (index >= 0 && index < m_Data.at(0).size()) {
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m_Data[0].replace(index, data);
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}
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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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* @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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* Merges into the array data an other array data
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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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* @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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void add(const ArrayData<1> &other, bool prepend = false)
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{
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QWriteLocker locker{&m_Lock};
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if (!m_Data.empty()) {
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QReadLocker otherLocker{&other.m_Lock};
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if (prepend) {
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const auto &otherData = other.data();
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const auto otherDataSize = otherData.size();
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auto &data = m_Data[0];
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data.insert(data.begin(), otherDataSize, 0.);
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for (auto i = 0; i < otherDataSize; ++i) {
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data.replace(i, otherData.at(i));
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}
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}
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else {
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m_Data[0] += other.data();
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}
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}
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}
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template <int D = Dim, typename = std::enable_if_t<D == 1> >
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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[0].size();
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}
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template <int D = Dim, typename = std::enable_if_t<D == 1> >
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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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const auto &data = m_Data.at(0);
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// Inits result
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auto sortedData = QVector<double>{};
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sortedData.resize(data.size());
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std::transform(sortPermutation.cbegin(), sortPermutation.cend(), sortedData.begin(),
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[&data](int i) { return data[i]; });
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return std::make_shared<ArrayData<Dim> >(std::move(sortedData));
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}
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template <int D = Dim, typename = std::enable_if_t<D == 1> >
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void clear()
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{
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QWriteLocker locker{&m_Lock};
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m_Data[0].clear();
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}
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private:
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QVector<QVector<double> > m_Data;
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mutable QReadWriteLock m_Lock;
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};
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#endif // SCIQLOP_ARRAYDATA_H
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