open()

bool MayaFlux::IO::SpatialReader::open

(

const std::string &

filepath

)

Open an Ogawa or HDF5 archive and index its streams.

The file is checked first: a missing path or a file that is not an archive fails with one logged line, without Alembic being involved.

Parameters

filepath

Path to the file. Resolved the same way other readers do.

Returns

True on success. On failure the error is logged and available from get_last_error().

Definition at line 304 of file SpatialReader.cpp.

{
    close();
 
    const auto resolved = FileReader::resolve_path(filepath);
 
    std::error_code ec;
    if (!std::filesystem::is_regular_file(resolved, ec)) {
        set_error("open: no such file: " + resolved);
        MF_ERROR(Journal::Component::IO, Journal::Context::FileIO,
            "SpatialReader::open: '{}' does not exist", resolved);
        return false;
    }
 
    const auto format = sniff_format(resolved);
    if (!format) {
        set_error("open: not an Alembic archive: " + resolved);
        MF_ERROR(Journal::Component::IO, Journal::Context::FileIO,
            "SpatialReader::open: '{}' is not an Alembic archive", resolved);
        return false;
    }
 
    try {
        IArchive archive = *format == ArchiveFormat::Ogawa
            ? IArchive(Alembic::AbcCoreOgawa::ReadArchive(), resolved)
            : Alembic::AbcCoreFactory::IFactory().getArchive(resolved);
        if (!archive.valid()) {
            set_error("open: archive could not be read: " + resolved);
            MF_ERROR(Journal::Component::IO, Journal::Context::FileIO,
                "SpatialReader::open: '{}' could not be read as an archive", resolved);
            return false;
        }
 
        m_impl->archive = archive;
        m_impl->index_streams();
    } catch (const std::exception& e) {
        close();
        set_error(std::string("open: ") + e.what());
        MF_ERROR(Journal::Component::IO, Journal::Context::FileIO,
            "SpatialReader::open: failed for '{}': {}", resolved, e.what());
        return false;
    }
 
    MF_INFO(Journal::Component::IO, Journal::Context::FileIO,
        "SpatialReader: opened '{}', {} stream(s)", resolved, m_impl->names.size());
    return true;
}

References MayaFlux::Journal::FileIO, format, MayaFlux::Journal::IO, MF_ERROR, MF_INFO, and MayaFlux::IO::FileReader::resolve_path().

Here is the call graph for this function: