FlagHandler.cc

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// -*- lsst-c++ -*-
/*
 * LSST Data Management System
 * Copyright 2008-2014 LSST Corporation.
 *
 * This product includes software developed by the
 * LSST Project (http://www.lsst.org/).
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the LSST License Statement and
 * the GNU General Public License along with this program.  If not,
 * see <http://www.lsstcorp.org/LegalNotices/>.
 */

#include "lsst/meas/base/FlagHandler.h"

namespace lsst { namespace meas { namespace base {

FlagHandler FlagHandler::addFields(
    afw::table::Schema & schema,
    std::string const & prefix,
    FlagDefinition const * begin,
    FlagDefinition const * end
) {
    FlagHandler r;
    r._vector.reserve(end - begin);
    for (FlagDefinition const * iter = begin; iter != end; ++iter) {
        r._vector.push_back(
            std::make_pair(
                *iter,
                schema.addField<afw::table::Flag>(schema.join(prefix, iter->name), iter->doc)
            )
        );
    }
    return r;
}

FlagHandler FlagHandler::addFields(
    afw::table::Schema & schema,
    std::string const & prefix,
    std::vector<FlagDefinition> const * flagDefs
) {
    FlagHandler r;
    r._vector.reserve(flagDefs->size());
    for (unsigned int i = 0; i < flagDefs->size(); i++) {
        r._vector.push_back(
            std::make_pair(
                flagDefs->at(i),
                schema.addField<afw::table::Flag>(schema.join(prefix, flagDefs->at(i).name), flagDefs->at(i).doc)
            )
        );
    }
    return r;
}

FlagHandler::FlagHandler(
    afw::table::SubSchema const & s,
    FlagDefinition const * begin,
    FlagDefinition const * end
) {
    _vector.reserve(end - begin);
    for (FlagDefinition const * iter = begin; iter != end; ++iter) {
        afw::table::Key<afw::table::Flag> key = s[iter->name];
        _vector.push_back(std::make_pair(*iter, key));
    }
}

void FlagHandler::handleFailure(afw::table::BaseRecord & record, MeasurementError const * error) const {
    std::size_t const numFlags = _vector.size();
    assert(numFlags > 0);  // We need a general failure flag
    record.set(_vector[0].second, true);
    if (error) {
        assert(numFlags > error->getFlagBit());  // We need the particular flag
        record.set(_vector[error->getFlagBit()].second, true);
    }
}


}}} // lsst::meas::base