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207 lines
10 KiB
207 lines
10 KiB
5 months ago
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#pragma once
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#include "ncsimple.h"
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#include "zarr.h"
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#include <set>
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#define DEFFUNC(func, def) \
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auto func(const MString& var) const \
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{ \
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const auto ind = FindVar(var); \
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return ind < sources.size() ? sources[ind].func(var) : (def); \
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}
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#define DEFFUNCA(func, def) \
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auto func(const MString& att) const \
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{ \
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const auto ind = FindAtt(att); \
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return ind < sources.size() ? sources[ind].func(att) : (def); \
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}
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#define DEFFUNC2(func, def) \
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auto func(const MString& var, const MString& name) const \
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{ \
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const auto ind = FindVar(var); \
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return ind < sources.size() ? sources[ind].func(var, name) : (def); \
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}
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#define DEFFUNCNAMES(func) \
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auto func() const \
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{ \
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std::set<MString> names; \
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for(const auto& s: sources) \
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{ \
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auto snames = s.func(); \
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for(const auto& name: snames) names.insert(name); \
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} \
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std::vector<MString> out; \
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for(const auto& name: names) out.push_back(name); \
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return out; \
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}
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template<class T> class NCZarrMultiCommon: private DimReqDef
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{
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protected:
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std::vector<T> sources;
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private:
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size_t FindVar(const MString& var) const
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{
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for(size_t i = 0; i < sources.size(); i++)
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if(sources[i].HasVar(var)) return i;
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return sources.size();
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}
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size_t FindAtt(const MString& att) const
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{
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for(size_t i = 0; i < sources.size(); i++)
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if(sources[i].HasAtt(att)) return i;
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return sources.size();
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}
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public:
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explicit operator bool() const
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{
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if(sources.empty()) return false;
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for(const auto& s: sources)
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if(!s) return false;
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return true;
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}
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size_t NDim() const { return DimNames().size(); }
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DEFFUNC(NDim, 0)
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size_t NAtt() const { return AttNames().size(); }
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DEFFUNC(NAtt, 0)
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DEFFUNCNAMES(AttNames)
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DEFFUNC(AttNames, decltype(AttNames())())
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DEFFUNCNAMES(VarNames)
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DEFFUNC(VarT, T::VarType::UNDEF)
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DEFFUNC(VarFill, decltype(T().VarFill(MString()))())
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DEFFUNC(DimNames, decltype(T().DimNames(MString()))())
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DEFFUNC2(DimSize, 0)
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DEFFUNC2(AttT, T::AttType::UNDEF)
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DEFFUNC2(AttInt, 0)
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DEFFUNC2(AttUInt, 0)
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DEFFUNC2(AttReal, 0.0)
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DEFFUNC2(AttString, MString())
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DEFFUNC2(AttBool, false)
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DEFFUNCA(AttT, T::AttType::UNDEF)
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DEFFUNCA(AttInt, 0)
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DEFFUNCA(AttUInt, 0)
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DEFFUNCA(AttReal, 0.0)
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DEFFUNCA(AttString, MString())
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DEFFUNCA(AttBool, false)
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DEFFUNC2(HasDim, false)
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DEFFUNC(HasVar, false)
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DEFFUNCA(HasAtt, false)
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DEFFUNC2(HasAtt, false)
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// Request is string
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template<class Data, class Transform> Error Read(const MString& vname, Data& data, Transform transform, const char* request) const
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{
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return Read(vname, data, transform, MString(request));
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}
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// Request by one dimension
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template<class Data, class Transform> Error Read(const MString& vname, Data& data, Transform transform, DimReq&& req1) const
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{
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return Read(vname, data, transform, std::vector<DimReq>{std::move(req1)});
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}
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// Request by two dimension
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template<class Data, class Transform> Error Read(const MString& vname, Data& data, Transform transform, DimReq&& req1, DimReq&& req2) const
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{
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return Read(vname, data, transform, std::vector<DimReq>{std::move(req1), std::move(req2)});
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}
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// Request by three dimension
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template<class Data, class Transform> Error Read(const MString& vname, Data& data, Transform transform, DimReq&& req1, DimReq&& req2, DimReq&& req3) const
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{
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return Read(vname, data, transform, std::vector<DimReq>{std::move(req1), std::move(req2), std::move(req3)});
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}
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// Request by four dimension
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template<class Data, class Transform> Error Read(const MString& vname, Data& data, Transform transform, DimReq&& req1, DimReq&& req2, DimReq&& req3, DimReq&& req4) const
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{
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return Read(vname, data, transform, std::vector<DimReq>{std::move(req1), std::move(req2), std::move(req3), std::move(req4)});
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}
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// Request full variable
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template<class Data, class Transform> Error Read(const MString& vname, Data& data, Transform transform) const
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{
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auto ind = FindVar(vname);
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if(ind < sources.size()) return sources[ind].Read(vname, data, transform);
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return Error("NCZarrMultiCommon::Read", "Variable " + vname + " not found");
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}
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// Base function for all Read's
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template<class Data, class Transform> Error Read(const MString& vname, Data& data, Transform transform, const std::vector<DimReqDef::DimReq>& reqs) const
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{
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auto ind = FindVar(vname);
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if(ind < sources.size()) return sources[ind].Read(vname, data, transform, reqs);
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return Error("NCZarrMultiCommon::Read", "Variable " + vname + " not found");
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}
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// Request by string argument
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template<class Data, class Transform> Error Read(const MString& vname, Data& data, Transform transform, const MString& request) const
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{
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auto ind = FindVar(vname);
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if(ind < sources.size()) return sources[ind].Read(vname, data, transform, request);
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return Error("NCZarrMultiCommon::Read", "Variable " + vname + " not found");
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}
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// Request full one-dimensional variable
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template<class Type> Error Read(const MString& vname, std::vector<Type>& out) const
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{
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auto ind = FindVar(vname);
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if(ind < sources.size()) return sources[ind].Read(vname, out);
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return Error("NCZarrMultiCommon::Read", "Variable " + vname + " not found");
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}
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};
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#undef DEFFUNC
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#undef DEFFUNCA
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#undef DEFFUNC2
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#undef DEFFUNCNAME
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class NCMulti: public NCZarrMultiCommon<NCSimple>
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{
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public:
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Error Open(const std::vector<MString>& names)
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{
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sources.clear();
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decltype(sources) newsources;
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static const MString pref = "NcMulti::Open";
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if(names.size() == 0) return Error(pref, "empty file list");
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for(const auto& name: names)
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{
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newsources.emplace_back();
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auto ret = newsources.back().Open(name);
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if(!ret) return ret.Add(pref, "Can't open file " + name);
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}
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sources = std::move(newsources);
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return Error();
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}
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};
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class ZarrMulti: public NCZarrMultiCommon<Zarr>
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{
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public:
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Error Open(const MString& product, const std::vector<MString>& dsets, bool time = true)
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{
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sources.clear();
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decltype(sources) newsources;
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static const MString pref = "ZarrMulti::Open";
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if(dsets.size() == 0) return Error(pref, "empty datasets list");
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for(const auto& dset: dsets)
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{
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newsources.emplace_back();
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auto ret = newsources.back().Open(product, dset, time);
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if(!ret) return ret.Add(pref, "Can't open dataset " + dset);
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}
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sources = std::move(newsources);
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return Error();
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}
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};
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