def get_l8_info(scene_id, full=False, s3=None):
"""Return Landsat-8 metadata."""
info = utils.landsat_parse_scene_id(scene_id)
aws_url = f'https://{landsat_bucket}.s3.amazonaws.com'
scene_key = info["key"]
info['browseURL'] = f'{aws_url}/{scene_key}_thumb_large.jpg'
info['thumbURL'] = f'{aws_url}/{scene_key}_thumb_small.jpg'
if full:
try:
data = json.loads(aws.get_object(landsat_bucket, f'{scene_key}_MTL.json', s3=s3))
image_attr = data['L1_METADATA_FILE']['IMAGE_ATTRIBUTES']
prod_meta = data['L1_METADATA_FILE']['PRODUCT_METADATA']
info['sun_azimuth'] = image_attr.get('SUN_AZIMUTH')
info['sun_elevation'] = image_attr.get('SUN_ELEVATION')
info['cloud_coverage'] = image_attr.get('CLOUD_COVER')
info['cloud_coverage_land'] = image_attr.get('CLOUD_COVER_LAND')
info['geometry'] = {
'type': 'Polygon',
'coordinates': [[
[prod_meta['CORNER_UR_LON_PRODUCT'], prod_meta['CORNER_UR_LAT_PRODUCT']],
[prod_meta['CORNER_UL_LON_PRODUCT'], prod_meta['CORNER_UL_LAT_PRODUCT']],
[prod_meta['CORNER_LL_LON_PRODUCT'], prod_meta['CORNER_LL_LAT_PRODUCT']],
[prod_meta['CORNER_LR_LON_PRODUCT'], prod_meta['CORNER_LR_LAT_PRODUCT']],
[prod_meta['CORNER_UR_LON_PRODUCT'], prod_meta['CORNER_UR_LAT_PRODUCT']]
]]}
except:
print(f'Could not get info from {scene_key}_MTL.json')
return info
def test_aws_get_object_awserror(session):
"""
Should raise an 'ClientError' error
"""
session.return_value.client.return_value.get_object.side_effect = ClientError(
{'Error': {
'Code': 500,
'Message': 'Error'
}}, 'get_object')
bucket = "landsat-pds"
key = "L8/178/246/LC81782462014232LGN00/LC81782462014232LGN00_MTL.json"
with pytest.raises(ClientError):
aws.get_object(bucket, key)
def get_s2_info(bucket, scene_path, full=False, s3=None, request_pays=False):
"""return Sentinel metadata
"""
scene_info = scene_path.split('/')
year = scene_info[4]
month = utils.zeroPad(scene_info[5], 2)
day = utils.zeroPad(scene_info[6], 2)
acquisition_date = f'{year}{month}{day}'
latitude_band = scene_info[2]
grid_square = scene_info[3]
num = scene_info[7]
info = {
'sat':
'S2A',
'path':
scene_path,
'utm_zone':
scene_info[1],
'latitude_band':
latitude_band,
'grid_square':
grid_square,
'num':
num,
'acquisition_date':
acquisition_date,
'browseURL':
f'https://sentinel-s2-l1c.s3.amazonaws.com/{scene_path}preview.jpg'
}
utm = utils.zeroPad(info['utm_zone'], 2)
info[
'scene_id'] = f'S2A_tile_{acquisition_date}_{utm}{latitude_band}{grid_square}_{num}'
if full:
try:
data = json.loads(
aws.get_object(bucket,
f'{scene_path}tileInfo.json',
s3=s3,
request_pays=request_pays))
sat_name = data['productName'][0:3]
info['sat'] = sat_name
info['geometry'] = data.get('tileGeometry')
info['coverage'] = data.get('dataCoveragePercentage')
info['cloud_coverage'] = data.get('cloudyPixelPercentage')
info[
'scene_id'] = f'{sat_name}_tile_{acquisition_date}_{utm}{latitude_band}{grid_square}_{num}'
except:
print(f'Could not get info from {scene_path}tileInfo.json')
return info
def test_aws_get_object_validClient(client):
"""Should work as expected
"""
client.return_value.get_object.return_value = {'Body': BytesIO(b'0101010')}
bucket = "landsat-pds"
key = "L8/178/246/LC81782462014232LGN00/LC81782462014232LGN00_MTL.json"
assert aws.get_object(bucket, key, s3=client())
def test_aws_get_object_validPays(session):
"""Should work as expected
"""
session.return_value.client.return_value.get_object.return_value = {
'Body': BytesIO(b'0101010')
}
bucket = "landsat-pds"
key = "L8/178/246/LC81782462014232LGN00/LC81782462014232LGN00_MTL.json"
assert aws.get_object(bucket, key, request_pays=True)
assert session.return_value.client.return_value.get_object.call_args[
1].get('RequestPayer') == 'requester'
