def check_open_with_grid_workflow(driver_manager):
type_name = 'ls5_nbar_albers'
dt = driver_manager.index.products.get_by_name(type_name)
from datacube.api.grid_workflow import GridWorkflow
gw = GridWorkflow(None, dt.grid_spec, driver_manager=driver_manager)
cells = gw.list_cells(product=type_name, cell_index=LBG_CELL)
assert LBG_CELL in cells
cells = gw.list_cells(product=type_name)
assert LBG_CELL in cells
tile = cells[LBG_CELL]
assert 'x' in tile.dims
assert 'y' in tile.dims
assert 'time' in tile.dims
assert tile.shape[1] == 4000
assert tile.shape[2] == 4000
assert tile[:1, :100, :100].shape == (1, 100, 100)
dataset_cell = gw.load(tile,
measurements=['blue'],
driver_manager=driver_manager)
assert dataset_cell['blue'].shape == tile.shape
for timestamp, tile_slice in tile.split('time'):
assert tile_slice.shape == (1, 4000, 4000)
dataset_cell = gw.load(tile, driver_manager=driver_manager)
assert all(m in dataset_cell
for m in ['blue', 'green', 'red', 'nir', 'swir1', 'swir2'])
ts = numpy.datetime64('1992-03-23T23:14:25.500000000')
tile_key = LBG_CELL + (ts, )
tiles = gw.list_tiles(product=type_name)
assert tiles
assert tile_key in tiles
tile = tiles[tile_key]
dataset_cell = gw.load(tile,
measurements=['blue'],
driver_manager=driver_manager)
assert dataset_cell['blue'].size
dataset_cell = gw.load(tile, driver_manager=driver_manager)
assert all(m in dataset_cell
for m in ['blue', 'green', 'red', 'nir', 'swir1', 'swir2'])
def check_open_with_grid_workflow(index):
from datacube.api.core import Datacube
dc = Datacube(index=index)
type_name = 'ls5_nbar_albers'
dt = dc.index.datasets.types.get_by_name(type_name)
from datacube.api.grid_workflow import GridWorkflow
gw = GridWorkflow(dc, dt.grid_spec)
cells = gw.list_cells(product=type_name)
assert LBG_CELL in cells
tiles = gw.list_tiles(product=type_name)
assert tiles
assert tiles[LBG_CELL]
ts, tile = tiles[LBG_CELL].popitem()
dataset_cell = gw.load(LBG_CELL, tile, measurements=['blue'])
assert dataset_cell['blue'].size
dataset_cell = gw.load(LBG_CELL, tile)
assert all(m in dataset_cell for m in ['blue', 'green', 'red', 'nir', 'swir1', 'swir2'])
tiles = gw.list_tile_stacks(product=type_name)
assert tiles
assert tiles[LBG_CELL]
tile = tiles[LBG_CELL]
dataset_cell = gw.load(LBG_CELL, tile, measurements=['blue'])
assert dataset_cell['blue'].size
dataset_cell = gw.load(LBG_CELL, tile)
assert all(m in dataset_cell for m in ['blue', 'green', 'red', 'nir', 'swir1', 'swir2'])
def find_diff(input_type, output_type, driver_manager, time_size, **query):
from datacube.api.grid_workflow import GridWorkflow
workflow = GridWorkflow(None, output_type.grid_spec, driver_manager=driver_manager)
cells_in = workflow.list_cells(product=input_type.name, **query)
cells_out = workflow.list_cells(product=output_type.name, **query)
remove_duplicates(cells_in, cells_out)
tasks = [{'tile': cell, 'tile_index': extent} for extent, cell in cells_in.items()]
new_tasks = []
for task in tasks:
tiles = task['tile'].split('time', time_size)
for t in tiles:
new_tasks.append({'tile': t[1], 'tile_index': task['tile_index']})
return new_tasks
def check_open_with_grid_workflow(index):
type_name = 'ls5_nbar_albers'
dt = index.datasets.types.get_by_name(type_name)
from datacube.api.grid_workflow import GridWorkflow
gw = GridWorkflow(index, dt.grid_spec)
cells = gw.list_cells(product=type_name)
assert LBG_CELL in cells
tile = cells[LBG_CELL]
dataset_cell = gw.load(tile, measurements=['blue'])
assert dataset_cell['blue'].size
dataset_cell = gw.load(tile)
assert all(m in dataset_cell for m in ['blue', 'green', 'red', 'nir', 'swir1', 'swir2'])
ts = numpy.datetime64('1992-03-23T23:14:25.500000000')
tile_key = LBG_CELL + (ts,)
tiles = gw.list_tiles(product=type_name)
assert tiles
assert tile_key in tiles
tile = tiles[tile_key]
dataset_cell = gw.load(tile, measurements=['blue'])
assert dataset_cell['blue'].size
dataset_cell = gw.load(tile)
assert all(m in dataset_cell for m in ['blue', 'green', 'red', 'nir', 'swir1', 'swir2'])
def make_tasks(index, config):
query = dict(time=(datetime(2011, 1, 1), datetime(2011, 2, 1)))
workflow = GridWorkflow(index, grid_spec=get_grid_spec(config))
assert len(config['sources']) == 1 # TODO: merge multiple sources
for source in config['sources']:
data = workflow.list_cells(product=source['product'], cell_index=(15, -40), **query)
masks = [workflow.list_cells(product=mask['product'], cell_index=(15, -40), **query)
for mask in source['masks']]
for key in data.keys():
yield {
'source': source,
'index': key,
'data': data[key],
'masks': [mask[key] for mask in masks]
}
def test_gridworkflow_with_time_depth():
"""Test GridWorkflow with time series.
Also test `Tile` methods `split` and `split_by_time`
"""
from mock import MagicMock
import datetime
fakecrs = geometry.CRS('EPSG:4326')
grid = 100 # spatial frequency in crs units
pixel = 10 # square pixel linear dimension in crs units
# if cell(0,0) has lower left corner at grid origin,
# and cell indices increase toward upper right,
# then this will be cell(1,-2).
gridspec = GridSpec(crs=fakecrs,
tile_size=(grid, grid),
resolution=(-pixel, pixel)) # e.g. product gridspec
def make_fake_datasets(num_datasets):
start_time = datetime.datetime(2001, 2, 15)
delta = datetime.timedelta(days=16)
for i in range(num_datasets):
fakedataset = MagicMock()
fakedataset.extent = geometry.box(left=grid,
bottom=-grid,
right=2 * grid,
top=-2 * grid,
crs=fakecrs)
fakedataset.center_time = start_time + (delta * i)
yield fakedataset
fakeindex = PickableMock()
fakeindex.datasets.get_field_names.return_value = [
'time'
] # permit query on time
fakeindex.datasets.search_eager.return_value = list(
make_fake_datasets(100))
# ------ test with time dimension ----
from datacube.api.grid_workflow import GridWorkflow
gw = GridWorkflow(fakeindex, gridspec)
query = dict(product='fake_product_name')
cells = gw.list_cells(**query)
for cell_index, cell in cells.items():
# test Tile.split()
for label, tile in cell.split('time'):
assert tile.shape == (1, 10, 10)
# test Tile.split_by_time()
for year, year_cell in cell.split_by_time(freq='A'):
for t in year_cell.sources.time.values:
assert str(t)[:4] == year
def make_tasks(index, config):
query = dict(time=(datetime(2011, 1, 1), datetime(2011, 2, 1)))
workflow = GridWorkflow(index, grid_spec=get_grid_spec(config))
assert len(config['sources']) == 1 # TODO: merge multiple sources
for source in config['sources']:
data = workflow.list_cells(product=source['product'],
cell_index=(15, -40),
**query)
masks = [
workflow.list_cells(product=mask['product'],
cell_index=(15, -40),
**query) for mask in source['masks']
]
for key in data.keys():
yield {
'source': source,
'index': key,
'data': data[key],
'masks': [mask[key] for mask in masks]
}
def check_open_with_grid_workflow(index):
from datacube.api.core import Datacube
dc = Datacube(index=index)
type_name = 'ls5_nbar_albers'
dt = dc.index.datasets.types.get_by_name(type_name)
from datacube.api.grid_workflow import GridWorkflow
gw = GridWorkflow(dc, dt.grid_spec)
cells = gw.list_cells(product=type_name)
assert LBG_CELL in cells
tiles = gw.list_tiles(product=type_name)
assert tiles
assert tiles[LBG_CELL]
ts, tile = tiles[LBG_CELL].popitem()
dataset_cell = gw.load(LBG_CELL, tile, measurements=['blue'])
assert dataset_cell['blue'].size
dataset_cell = gw.load(LBG_CELL, tile)
assert all(m in dataset_cell
for m in ['blue', 'green', 'red', 'nir', 'swir1', 'swir2'])
tiles = gw.list_tile_stacks(product=type_name)
assert tiles
assert tiles[LBG_CELL]
tile = tiles[LBG_CELL]
dataset_cell = gw.load(LBG_CELL, tile, measurements=['blue'])
assert dataset_cell['blue'].size
dataset_cell = gw.load(LBG_CELL, tile)
assert all(m in dataset_cell
for m in ['blue', 'green', 'red', 'nir', 'swir1', 'swir2'])
def test_gridworkflow():
"""Test GridWorkflow with padding option."""
# ----- fake a datacube -----
# e.g. let there be a dataset that coincides with a grid cell
fakecrs = geometry.CRS("EPSG:4326")
grid = 100 # spatial frequency in crs units
pixel = 10 # square pixel linear dimension in crs units
# if cell(0,0) has lower left corner at grid origin,
# and cell indices increase toward upper right,
# then this will be cell(1,-2).
gridspec = GridSpec(crs=fakecrs,
tile_size=(grid, grid),
resolution=(-pixel, pixel)) # e.g. product gridspec
fakedataset = MagicMock()
fakedataset.extent = geometry.box(left=grid,
bottom=-grid,
right=2 * grid,
top=-2 * grid,
crs=fakecrs)
fakedataset.center_time = t = datetime.datetime(2001, 2, 15)
fakedataset.id = uuid.uuid4()
fakeindex = PickableMock()
fakeindex._db = None
fakeindex.datasets.get_field_names.return_value = [
"time"
] # permit query on time
fakeindex.datasets.search_eager.return_value = [fakedataset]
# ------ test without padding ----
gw = GridWorkflow(fakeindex, gridspec)
# smoke test str/repr
assert len(str(gw)) > 0
assert len(repr(gw)) > 0
# Need to force the fake index otherwise the driver manager will
# only take its _db
gw.index = fakeindex
query = dict(product="fake_product_name",
time=("2001-1-1 00:00:00", "2001-3-31 23:59:59"))
# test backend : that it finds the expected cell/dataset
assert list(gw.cell_observations(**query).keys()) == [(1, -2)]
# again but with geopolygon
assert list(
gw.cell_observations(**query,
geopolygon=gridspec.tile_geobox(
(1, -2)).extent).keys()) == [(1, -2)]
with pytest.raises(ValueError) as e:
list(
gw.cell_observations(**query,
tile_buffer=(1, 1),
geopolygon=gridspec.tile_geobox(
(1, -2)).extent).keys())
assert str(
e.value) == "Cannot process tile_buffering and geopolygon together."
# test frontend
assert len(gw.list_tiles(**query)) == 1
# ------ introduce padding --------
assert len(gw.list_tiles(tile_buffer=(20, 20), **query)) == 9
# ------ add another dataset (to test grouping) -----
# consider cell (2,-2)
fakedataset2 = MagicMock()
fakedataset2.extent = geometry.box(left=2 * grid,
bottom=-grid,
right=3 * grid,
top=-2 * grid,
crs=fakecrs)
fakedataset2.center_time = t
fakedataset2.id = uuid.uuid4()
def search_eager(lat=None, lon=None, **kwargs):
return [fakedataset, fakedataset2]
fakeindex.datasets.search_eager = search_eager
# unpadded
assert len(gw.list_tiles(**query)) == 2
ti = numpy.datetime64(t, "ns")
assert set(gw.list_tiles(**query).keys()) == {(1, -2, ti), (2, -2, ti)}
# padded
assert (len(gw.list_tiles(tile_buffer=(20, 20), **query)) == 12
) # not 18=2*9 because of grouping
# -------- inspect particular returned tile objects --------
# check the array shape
tile = gw.list_tiles(**query)[1, -2, ti] # unpadded example
assert grid / pixel == 10
assert tile.shape == (1, 10, 10)
# smoke test str/repr
assert len(str(tile)) > 0
assert len(repr(tile)) > 0
padded_tile = gw.list_tiles(tile_buffer=(20, 20),
**query)[1, -2, ti] # padded example
# assert grid/pixel + 2*gw2.grid_spec.padding == 14 # GREG: understand this
assert padded_tile.shape == (1, 14, 14)
# count the sources
assert len(tile.sources.isel(time=0).item()) == 1
assert len(padded_tile.sources.isel(time=0).item()) == 2
# check the geocoding
assert tile.geobox.alignment == padded_tile.geobox.alignment
assert tile.geobox.affine * (0, 0) == padded_tile.geobox.affine * (2, 2)
assert tile.geobox.affine * (10, 10) == padded_tile.geobox.affine * (
10 + 2, 10 + 2)
# ------- check loading --------
# GridWorkflow accesses the load_data API
# to ultimately convert geobox,sources,measurements to xarray,
# so only thing to check here is the call interface.
measurement = dict(nodata=0, dtype=numpy.int)
fakedataset.type.lookup_measurements.return_value = {"dummy": measurement}
fakedataset2.type = fakedataset.type
from unittest.mock import patch
with patch("datacube.api.core.Datacube.load_data") as loader:
data = GridWorkflow.load(tile)
data2 = GridWorkflow.load(padded_tile)
# Note, could also test Datacube.load for consistency (but may require more patching)
assert data is data2 is loader.return_value
assert loader.call_count == 2
# Note, use of positional arguments here is not robust, could spec mock etc.
for (args, kwargs), loadable in zip(loader.call_args_list,
[tile, padded_tile]):
args = list(args)
assert args[0] is loadable.sources
assert args[1] is loadable.geobox
assert list(args[2].values())[0] is measurement
assert "resampling" in kwargs
# ------- check single cell index extract -------
tile = gw.list_tiles(cell_index=(1, -2), **query)
assert len(tile) == 1
assert tile[1, -2, ti].shape == (1, 10, 10)
assert len(tile[1, -2, ti].sources.values[0]) == 1
padded_tile = gw.list_tiles(cell_index=(1, -2),
tile_buffer=(20, 20),
**query)
assert len(padded_tile) == 1
assert padded_tile[1, -2, ti].shape == (1, 14, 14)
assert len(padded_tile[1, -2, ti].sources.values[0]) == 2
# query without product is not allowed
with pytest.raises(RuntimeError):
gw.list_cells(cell_index=(1, -2), time=query["time"])
