class AcquisitionRecord(object):
"""AcquisitionRecord database interface class."""
ACQUISITION_METADATA_FIELDS = [
'satellite_tag', 'sensor_name', 'x_ref', 'y_ref', 'start_datetime',
'end_datetime', 'll_lon', 'll_lat', 'lr_lon', 'lr_lat', 'ul_lon',
'ul_lat', 'ur_lon', 'ur_lat', 'gcp_count', 'mtl_text', 'cloud_cover'
]
def __init__(self, collection, dataset):
self.collection = collection
self.datacube = collection.datacube
self.db = IngestDBWrapper(self.datacube.db_connection)
self.acquisition_dict = {}
self.acquisiton_id = None # set below
# Fill a dictonary with data for the acquisition.
# Start with fields from the dataset metadata.
for field in self.ACQUISITION_METADATA_FIELDS:
self.acquisition_dict[field] = dataset.metadata_dict[field]
# Next look up the satellite_id and sensor_id in the
# database and fill these in.
self.acquisition_dict['satellite_id'] = \
self.db.get_satellite_id(self.acquisition_dict['satellite_tag'])
self.acquisition_dict['sensor_id'] = \
self.db.get_sensor_id(self.acquisition_dict['satellite_id'],
self.acquisition_dict['sensor_name'])
# Finally look up the acquisiton_id, or create a new record if it
# does not exist, and fill it into the dictionary.
self.acquisition_id = \
self.db.get_acquisition_id_fuzzy(self.acquisition_dict)
if self.acquisition_id is None:
self.acquisition_id = \
self.db.insert_acquisition_record(self.acquisition_dict)
else:
# Do we update the acquisition record here?
pass
self.acquisition_dict['acquisition_id'] = self.acquisition_id
def create_dataset_record(self, dataset):
"""Factory method to create an instance of the DatasetRecord class.
This method creates a new record in the database if one does not
already exist. It will overwrite an earlier dataset record (and its
tiles) if one exists. It will raise a DatasetError if a later (or
equal time) record for this dataset already exists in the database.
"""
return DatasetRecord(self.collection, self, dataset)
class AcquisitionRecord(object):
"""AcquisitionRecord database interface class."""
ACQUISITION_METADATA_FIELDS = ['satellite_tag',
'sensor_name',
'x_ref',
'y_ref',
'start_datetime',
'end_datetime',
'll_lon',
'll_lat',
'lr_lon',
'lr_lat',
'ul_lon',
'ul_lat',
'ur_lon',
'ur_lat',
'gcp_count',
'mtl_text',
'cloud_cover'
]
def __init__(self, collection, dataset):
self.collection = collection
self.datacube = collection.datacube
self.db = IngestDBWrapper(self.datacube.db_connection)
self.acquisition_dict = {}
self.acquisiton_id = None # set below
# Fill a dictonary with data for the acquisition.
# Start with fields from the dataset metadata.
for field in self.ACQUISITION_METADATA_FIELDS:
self.acquisition_dict[field] = dataset.metadata_dict[field]
# Next look up the satellite_id and sensor_id in the
# database and fill these in.
self.acquisition_dict['satellite_id'] = \
self.db.get_satellite_id(self.acquisition_dict['satellite_tag'])
self.acquisition_dict['sensor_id'] = \
self.db.get_sensor_id(self.acquisition_dict['satellite_id'],
self.acquisition_dict['sensor_name'])
# Finally look up the acquisiton_id, or create a new record if it
# does not exist, and fill it into the dictionary.
self.acquisition_id = \
self.db.get_acquisition_id_fuzzy(self.acquisition_dict)
if self.acquisition_id is None:
self.acquisition_id = \
self.db.insert_acquisition_record(self.acquisition_dict)
else:
# Do we update the acquisition record here?
pass
self.acquisition_dict['acquisition_id'] = self.acquisition_id
def create_dataset_record(self, dataset):
"""Factory method to create an instance of the DatasetRecord class.
This method creates a new record in the database if one does not
already exist. It will overwrite an earlier dataset record (and its
tiles) if one exists. It will raise a DatasetError if a later (or
equal time) record for this dataset already exists in the database.
"""
return DatasetRecord(self.collection, self, dataset)
