RialtoDbReader.cpp

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#include "RialtoDbReader.hpp"
#include "RialtoDb.hpp"

namespace pdal
{

static PluginInfo const s_info = PluginInfo(
    "readers.rialtodb",
    "Read data from a Rialto DB",
    "" );

CREATE_SHARED_PLUGIN(1, 0, rialto::RialtoDbReader, Reader, s_info)

namespace rialto
{


std::string RialtoDbReader::getName() const { return s_info.name; }


RialtoDbReader::RialtoDbReader() :
    Reader(),
    m_db(NULL)
{}


RialtoDbReader::~RialtoDbReader()
{
    if (m_db)
    {
        m_db->close();
        delete m_db;
    }
}


void RialtoDbReader::initialize()
{
    log()->get(LogLevel::Debug) << "RialtoDbReader::initialize()" << std::endl;
    
    if (!m_db)
    {
        m_db = new RialtoDb(m_filename, log());
        m_db->open(false);
    
        std::vector<std::string> names;
        m_db->readTileSetIds(names);
        m_tileSetName = names[0];
        assert(names.size()==1); // TODO: always take the first one for now
    
        m_tileSetInfo = std::unique_ptr<TileSetInfo>(new TileSetInfo());

        m_db->readTileSetInfo(m_tileSetName, *m_tileSetInfo);
    }
}


Options RialtoDbReader::getDefaultOptions()
{
    log()->get(LogLevel::Debug) << "RialtoDbReader::getDefaultOptions()" << std::endl;

    Options options;

    return options;
}


void RialtoDbReader::processOptions(const Options& options)
{
    m_filename = options.getValueOrThrow<std::string>("filename");
    
    log()->get(LogLevel::Debug) << "RialtoDbReader::processOptions()" << std::endl;
    
    static const double minx = -179.9;
    static const double miny = -89.9;
    static const double maxx = 179.9;
    static const double maxy = 89.9;
    static const double minz = (std::numeric_limits<double>::lowest)();
    static const double maxz = (std::numeric_limits<double>::max)();
    static const BOX3D all(minx, miny, minz, maxx, maxy, maxz);
    
    m_query = options.getValueOrDefault<BOX3D>("bbox", all);
    
    log()->get(LogLevel::Debug) << "process options: bbox="
        << m_query << std::endl;

    m_level = options.getValueOrDefault<uint32_t>("level", 9999);
}


void RialtoDbReader::addDimensions(PointLayoutPtr layout)
{
    log()->get(LogLevel::Debug) << "RialtoDbReader::addDimensions()" << std::endl;

    m_db->setupLayout(*m_tileSetInfo, layout);
}


void RialtoDbReader::ready(PointTableRef table)
{
    log()->get(LogLevel::Debug) << "RialtoDbReader::ready()" << std::endl;
    // TODO: anything to do here?
}


point_count_t RialtoDbReader::read(PointViewPtr view, point_count_t count)
{
    log()->get(LogLevel::Debug) << "RialtoDbReader::read()" << std::endl;

    // TODO: `count` is ignored
    
    const double minx = m_query.minx;
    const double miny = m_query.miny;
    const double maxx = m_query.maxx;
    const double maxy = m_query.maxy;

    uint32_t maxLevel = m_level;
    if (maxLevel == 9999)
    {
        maxLevel = m_tileSetInfo->maxLevel;
    }
    
    m_db->queryForTileInfosBegin(m_tileSetName, minx, miny, maxx, maxy, maxLevel);

    TileInfo info;

    do {    
        bool ok = m_db->queryForTileInfos(info);
        if (!ok) break;
        
        log()->get(LogLevel::Debug) << "  got some points: " << info.numPoints << std::endl;

        
        PointViewPtr tempView = view->makeNew();

        info.patch.exportToPV(info.numPoints, tempView);

        for (uint32_t i=0; i<tempView->size(); i++) {
            const double x = tempView->getFieldAs<double>(Dimension::Id::X, i);
            const double y = tempView->getFieldAs<double>(Dimension::Id::Y, i);
            if (x >= minx && x <= maxx && y >= miny && y <= maxy)
            {
                view->appendPoint(*tempView, i);
            }
        }

        log()->get(LogLevel::Debug) << "  view now has this many: " << view->size() << std::endl;
    } while (m_db->queryForTileInfosNext());
  
    return view->size();
}

} // namespace rialto

void Options::remove(const std::string& name)
{
    m_options.erase(name);
}
} // namespace pdal