def _identify_resource(resource, user_api_key, resource_tmp_folder, filename):
# Todo: Document this function
result = {}
gdal_driver, vector_file_path, prj_exists = _get_gdalDRV_filepath(
resource, resource_tmp_folder, filename)
if gdal_driver:
result['gdal_driver'] = gdal_driver
_vector = vector.Vector(gdal_driver, vector_file_path, None, None)
layer_count = _vector.get_layer_count()
layers = []
for layer_idx in range(0, layer_count):
layer_dict = {}
layer = _vector.get_layer(layer_idx)
layer_dict['idx'] = layer_idx
layer_dict['layer_name'] = layer.GetName()
layer_dict['layer_srs'] = _vector.get_SRS(layer)
layer_dict['layer_geometry'] = _vector.get_geometry_name(layer)
sample_data = _vector.get_sample_data(layer)
layer_dict['sample_data'] = sample_data
layers.append(layer_dict)
result['layers'] = layers
return result
def _ingest_resource(resource, context, backend_context, resource_tmp_folder,
filename):
# Todo:
# a. Document this function
# b. This is a core processing unit and should return an overall status
gdal_driver, vector_file_path, prj_exists = _get_gdalDRV_filepath(
resource, resource_tmp_folder, filename)
db_conn_params = context['db_params']
layer_params = context['layer_params']['layers']
logger = context['logger']
if gdal_driver:
if gdal_driver == vector.SHAPEFILE:
_encoding = layer_params[0]['encoding']
else:
_encoding = 'utf-8'
logger.info('Using encoding `%s` for input file', _encoding)
_vector = vector.Vector(gdal_driver, vector_file_path, _encoding,
db_conn_params)
logger.info('Read vector resource using GDAL')
layer_count = _vector.get_layer_count()
logger.info('Found %d vector layers to ingest' % (layer_count))
for layer_idx in range(0, layer_count):
if layer_params[layer_idx]['is_selected']:
layer_name = layer_params[layer_idx]['name']
srs = layer_params[layer_idx]['srs']
encoding = layer_params[layer_idx]['encoding']
logger.info(
'Trying to ingest selected vector layer `%s` (at epsg:%s)',
layer_name, srs)
_ingest_vector(_vector, layer_idx, layer_name, resource,
context, backend_context, srs, encoding)
def _ingest_resource(resource, context, geoserver_context, resource_tmp_folder,
filename):
# Todo:
# a. Document this function
# b. This is a core processing unit and should return an overall status
gdal_driver, vector_file_path, prj_exists = _get_gdalDRV_filepath(
resource, resource_tmp_folder, filename)
db_conn_params = context['db_params']
layer_params = context['layer_params']['layers']
_encoding = 'utf-8'
if gdal_driver:
_vector = vector.Vector(gdal_driver, vector_file_path, _encoding,
db_conn_params)
layer_count = _vector.get_layer_count()
for layer_idx in range(0, layer_count):
if layer_params[layer_idx]['is_selected']:
srs = layer_params[layer_idx]['srs']
_ingest_vector(_vector, layer_idx, resource, context,
geoserver_context, srs)