def __init__(self, dataset_path):
"""Opens the dataset and extracts metadata.
Most of the metadata is kept in self._ds which is
a eotools.drivers.SceneDataset object. Some extra metadata is
extracted and kept the instance attributes.
"""
self._dataset_path = dataset_path
LOGGER.info("Opening Dataset %s", self._dataset_path)
self._ds = SceneDataset(default_metadata_required=False, utm_fix=True)
self._ds = self._ds.Open(self.get_dataset_path())
if not self._ds:
raise DatasetError("Unable to open %s" % self.get_dataset_path())
#
# Cache extra metadata in instance attributes.
#
self._dataset_size = self._get_directory_size()
if self.get_processing_level() in ["ORTHO", "L1T", "MAP"]:
LOGGER.debug("Dataset %s is Level 1", self.get_dataset_path())
self._gcp_count = self._get_gcp_count()
self._mtl_text = self._get_mtl_text()
else:
self._gcp_count = None
self._mtl_text = None
self._xml_text = self._get_xml_text()
AbstractDataset.__init__(self)
