Source code for swot_simulator.plugins
# Copyright (c) 2021 CNES/JPL
#
# All rights reserved. Use of this source code is governed by a
# BSD-style license that can be found in the LICENSE file.
"""
Plug-in handlers
----------------
"""
import numpy as np
[docs]class Interface:
"""Interface of a plugin."""
[docs] @classmethod
def interpolate(cls, lon: np.ndarray, lat: np.ndarray,
dates: np.ndarray) -> np.ndarray:
"""Interpolate the geophysical field for the given coordinates."""
raise RuntimeError("You must register a plugin")
[docs]class Puppet(Interface):
"""Interpolation routine used for testing."""
[docs] def interpolate(self, lon, _lat, _time):
"""Returns an array filled with zeros."""
return np.full_like(lon, 0)
[docs]class Plugin:
"""Plug-in to interpolate a geophysical field."""
[docs] def interpolate(self, lon: np.ndarray, lat: np.ndarray,
time: np.ndarray) -> np.ndarray:
"""Interpolate the geophysical field for the given coordinates."""
return self.plugin.interpolate(lon, lat, time)
[docs] @classmethod
def register(cls, plugin):
"""Register the user plugin."""
if not isinstance(plugin, Interface):
raise TypeError("plugin must be a sub-class of "
f"{Interface.__class__.__name__}") # type: ignore
result = cls()
result.plugin = plugin
return result