Source code for openquake.hmtk.registry

# -*- coding: utf-8 -*-
# vim: tabstop=4 shiftwidth=4 softtabstop=4

#
# LICENSE
#
# Copyright (C) 2017-2020 GEM Foundation
#
# The Hazard Modeller's Toolkit 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.
#
# You should have received a copy of the GNU Affero General Public License
# along with OpenQuake. If not, see <http://www.gnu.org/licenses/>
#
# DISCLAIMER The software Hazard Modeller's Toolkit (openquake.hmtk) provided
# herein is released as a prototype implementation on behalf of
# scientists and engineers working within the GEM Foundation (Global
# Earthquake Model).
#
# It is distributed for the purpose of open collaboration and in the
# hope that it will be useful to the scientific, engineering, disaster
# risk and software design communities.
#
# The software is NOT distributed as part of GEM’s OpenQuake suite
# (https://www.globalquakemodel.org/tools-products) and must be considered
# as a separate entity. The software provided herein is designed and
# implemented by scientific staff. It is not developed to the design
# standards, nor subject to same level of critical review by
# professional software developers, as GEM’s OpenQuake software suite.
#
# Feedback and contribution to the software is welcome, and can be
# directed to the hazard scientific staff of the GEM Model Facility
# (hazard@globalquakemodel.org).
#
# The Hazard Modeller's Toolkit (openquake.hmtk) is therefore distributed
# 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.
#
# The GEM Foundation, and the authors of the software, assume no
# liability for use of the software.

import sys
import functools
from decorator import decorator


[docs]class CatalogueFunctionRegistry(dict): """ A collection of methods/functions working on catalogues. The registry also holds information about the type of the input arguments """
[docs] def check_config(self, config, fields_spec): """ Check that `config` has each field in `fields_spec` if a default has not been provided. """ for field, type_info in fields_spec.items(): has_default = not isinstance(type_info, type) if field not in config and not has_default: raise RuntimeError( "Configuration not complete. %s missing" % field)
[docs] def set_defaults(self, config, fields_spec): """ Set default values got from `fields_spec` into the `config` dictionary """ defaults = dict([(f, d) for f, d in fields_spec.items() if not isinstance(d, type)]) for field, default_value in defaults.items(): if field not in config: config[field] = default_value
[docs] def add(self, method_name, completeness=False, **fields): """ Class decorator. Decorate `method_name` by adding a call to `set_defaults` and `check_config`. Then, save into the registry a callable function with the same signature of the original method. :param str method_name: the method to decorate :param bool completeness: True if the method accepts in input an optional parameter for the completeness table :param fields: a dictionary of field spec corresponding to the keys expected to be present in the config dictionary for the decorated method, e.g. time_bin=numpy.float, b_value=1E-6 """ def class_decorator(class_obj): original_method = getattr(class_obj, method_name) if sys.version[0] == '2': # Python 2 original_method = original_method.im_func def caller(fn, obj, catalogue, config=None, *args, **kwargs): config = config or {} self.set_defaults(config, fields) self.check_config(config, fields) return fn(obj, catalogue, config, *args, **kwargs) new_method = decorator(caller, original_method) setattr(class_obj, method_name, new_method) instance = class_obj() func = functools.partial(new_method, instance) func.fields = fields func.model = instance func.completeness = completeness functools.update_wrapper(func, new_method) self[class_obj.__name__] = func return class_obj return class_decorator
[docs] def add_function(self, completeness=False, **fields): """ Function decorator. Decorate a function by adding a call to `set_defaults` and `check_config`. Then, save into the registry a callable function with the same signature of the original method :param fields: a dictionary of field spec, e.g. time_bin=numpy.float, b_value=1E-6 """ def dec(fn): if completeness: def fn_with_config_and_c( catalogue, config, completeness_table=None): return fn(catalogue, completeness_table, **config) fn_with_config = fn_with_config_and_c else: def fn_with_config_without_c(catalogue, config): return fn(catalogue, **config) fn_with_config = fn_with_config_without_c fn_with_config.fields = fields fn_with_config.completeness = completeness fn.fields = fields self[fn.__name__] = fn_with_config return fn return dec