Method LoadArray

frmts/zarr/zarr_v2_array.cpp:1413–2129

/************************************************************************/

std::shared_ptr<ZarrArray>
ZarrV2Group::LoadArray(const std::string &osArrayName,
                       const std::string &osZarrayFilename,
                       const CPLJSONObject &oRoot, bool bLoadedFromZMetadata,
                       const CPLJSONObject &oAttributesIn) const
{
    // Add osZarrayFilename to m_poSharedResource during the scope
    // of this function call.
    ZarrSharedResource::SetFilenameAdder filenameAdder(m_poSharedResource,
                                                       osZarrayFilename);
    if (!filenameAdder.ok())
        return nullptr;

    const auto osFormat = oRoot["zarr_format"].ToString();
    if (osFormat != "2")
    {
        CPLError(CE_Failure, CPLE_NotSupported,
                 "Invalid value for zarr_format: %s", osFormat.c_str());
        return nullptr;
    }

    bool bFortranOrder = false;
    const char *orderKey = "order";
    const auto osOrder = oRoot[orderKey].ToString();
    if (osOrder == "C")
    {
        // ok
    }
    else if (osOrder == "F")
    {
        bFortranOrder = true;
    }
    else
    {
        CPLError(CE_Failure, CPLE_NotSupported, "Invalid value for %s",
                 orderKey);
        return nullptr;
    }

    const auto oShape = oRoot["shape"].ToArray();
    if (!oShape.IsValid())
    {
        CPLError(CE_Failure, CPLE_AppDefined, "shape missing or not an array");
        return nullptr;
    }

    const char *chunksKey = "chunks";
    const auto oChunks = oRoot[chunksKey].ToArray();
    if (!oChunks.IsValid())
    {
        CPLError(CE_Failure, CPLE_AppDefined, "%s missing or not an array",
                 chunksKey);
        return nullptr;
    }

    if (oShape.Size() != oChunks.Size())
    {
        CPLError(CE_Failure, CPLE_AppDefined,