Source code for openquake.risklib.riskinput

# -*- coding: utf-8 -*-
# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# Copyright (C) 2015-2023 GEM Foundation
#
# OpenQuake is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# OpenQuake 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with OpenQuake. If not, see <http://www.gnu.org/licenses/>.

import numpy

U32 = numpy.uint32
F32 = numpy.float32


class RiskInput(object):
    """
    Site specific inputs.

    :param hazard_getter:
        a callable returning the hazard data for all realizations
    :param asset_df:
        a DataFrame of assets on the given site
    """
    def __init__(self, hazard_getter, asset_df):
        self.hazard_getter = hazard_getter
        self.asset_df = asset_df
        self.weight = len(asset_df)

    def __repr__(self):
        [sid] = self.hazard_getter.sids
        return '<%s sid=%s, %d asset(s)>' % (
            self.__class__.__name__, sid, len(self.asset_df))


def str2rsi(key):
    """
    Convert a string of the form 'rlz-XXXX/sid-YYYY/ZZZ'
    into a triple (XXXX, YYYY, ZZZ)
    """
    rlzi, sid, imt = key.split('/')
    return int(rlzi[4:]), int(sid[4:]), imt


def rsi2str(rlzi, sid, imt):
    """
    Convert a triple (XXXX, YYYY, ZZZ) into a string of the form
    'rlz-XXXX/sid-YYYY/ZZZ'
    """
    return 'rlz-%04d/sid-%04d/%s' % (rlzi, sid, imt)