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| Original file line number | Diff line number | Diff line change |
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| # -*- coding: utf-8 -*- | ||
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| from __future__ import unicode_literals, print_function, division, absolute_import | ||
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| import os | ||
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| import numpy as np | ||
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| from openfisca_core.simulations import Simulation | ||
| from openfisca_core.data_storage import OnDiskStorage | ||
| from openfisca_core.periods import ETERNITY | ||
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| def dump_simulation(simulation, directory): | ||
| """ | ||
| Write data to disk, so that it can be restored later. | ||
| """ | ||
| if not os.path.isdir(directory): | ||
| os.mkdir(directory) | ||
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| entities_dump_dir = os.path.join(directory, "__entities__") | ||
| os.mkdir(entities_dump_dir) | ||
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| for entity in simulation.entities.values(): | ||
| # Dump entity structure | ||
| _dump_entity(entity, entities_dump_dir) | ||
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| # Dump variable values | ||
| for holder in entity._holders.values(): | ||
| _dump_holder(holder, directory) | ||
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| def _dump_holder(holder, directory): | ||
| disk_storage = holder.create_disk_storage(directory, preserve = True) | ||
| for period in holder.get_known_periods(): | ||
| value = holder.get_array(period) | ||
| disk_storage.put(value, period) | ||
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| def _dump_entity(entity, directory): | ||
| path = os.path.join(directory, entity.key) | ||
| os.mkdir(path) | ||
| np.save(os.path.join(path, "id.npy"), entity.ids) | ||
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| if entity.is_person: | ||
| return | ||
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| np.save(os.path.join(path, "members_position.npy"), entity.members_position) | ||
| np.save(os.path.join(path, "members_entity_id.npy"), entity.members_entity_id) | ||
| np.save(os.path.join(path, "members_legacy_role.npy"), entity.members_legacy_role) | ||
| encoded_roles = np.select( | ||
| [entity.members_role == role for role in entity.flattened_roles], | ||
| [role.key for role in entity.flattened_roles], | ||
| ) | ||
| np.save(os.path.join(path, "members_role.npy"), encoded_roles) | ||
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| def _restore_entity(entity, directory): | ||
| path = os.path.join(directory, entity.key) | ||
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| entity.ids = np.load(os.path.join(path, "id.npy")) | ||
| entity.count = len(entity.ids) | ||
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| if entity.is_person: | ||
| return | ||
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| entity.members_position = np.load(os.path.join(path, "members_position.npy")) | ||
| entity.members_entity_id = np.load(os.path.join(path, "members_entity_id.npy")) | ||
| entity.members_legacy_role = np.load(os.path.join(path, "members_legacy_role.npy")) | ||
| encoded_roles = np.load(os.path.join(path, "members_role.npy")) | ||
| entity.members_role = np.select( | ||
| [encoded_roles == role.key for role in entity.flattened_roles], | ||
| [role for role in entity.flattened_roles], | ||
| ) | ||
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| def restore_simulation(directory, tax_benefit_system, **kwargs): | ||
| simulation = Simulation(tax_benefit_system, **kwargs) | ||
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| entities_dump_dir = os.path.join(directory, "__entities__") | ||
| for entity in simulation.entities.values(): | ||
| _restore_entity(entity, entities_dump_dir) | ||
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| variables_to_restore = (variable for variable in os.listdir(directory) if variable != "__entities__") | ||
| for variable in variables_to_restore: | ||
| _restore_holder(simulation, variable, directory) | ||
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| return simulation | ||
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| def _restore_holder(simulation, variable, directory): | ||
| storage_dir = os.path.join(directory, variable) | ||
| is_variable_eternal = simulation.tax_benefit_system.get_variable(variable).definition_period == ETERNITY | ||
| disk_storage = OnDiskStorage( | ||
| storage_dir, | ||
| is_eternal = is_variable_eternal, | ||
| preserve_storage_dir = True | ||
| ) | ||
| disk_storage.restore() | ||
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| holder = simulation.get_holder(variable) | ||
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| for period in disk_storage.get_known_periods(): | ||
| value = disk_storage.get(period) | ||
| holder.put_in_cache(value, period) |
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