def _update_units(self, request, unit_inventory): """ Update units that have been updated on the parent since added or last updated in the child inventory. :param request: A synchronization request. :type request: SyncRequest :param unit_inventory: The inventory of both parent and child content units. :type unit_inventory: UnitInventory """ download_list = [] units = unit_inventory.updated_units() listener = ContentDownloadListener(self, request) for unit, unit_ref in units: storage_path = unit[constants.STORAGE_PATH] if storage_path: self._reset_storage_path(unit) unit_url, destination = self._url_and_destination(unit_inventory.base_URL, unit) _request = listener.create_request(unit_url, destination, unit, unit_ref) download_list.append(_request) else: unit = unit_ref.fetch() self.add_unit(request, unit) if not download_list: return container = ContentContainer() request.summary.sources = container.download( request.downloader, download_list, listener) request.summary.errors.extend(listener.error_list)
def _add_units(self, request, unit_inventory): """ Determine the list of units contained in the parent inventory but are not contained in the child inventory and add them. For each unit, this is performed in the following steps: 1. Download the file (if defined) associated with the unit. 2. Add the unit to the child inventory. 3. Associate the unit to the repository. The unit is added only: 1. If no file is associated with unit. 2. The file associated with the unit is successfully downloaded. For units with files, the unit is added to the inventory as part of the unit download manager callback. :param request: A synchronization request. :type request: SyncRequest :param unit_inventory: The inventory of both parent and child content units. :type unit_inventory: UnitInventory """ download_list = [] units = unit_inventory.units_on_parent_only() request.progress.begin_adding_units(len(units)) listener = ContentDownloadListener(self, request) for unit, unit_ref in units: if request.cancelled(): return self._reset_storage_path(unit) if not self._needs_download(unit): # unit has no file associated self.add_unit(request, unit_ref.fetch()) continue unit_path, destination = self._path_and_destination(unit) unit_URL = pathlib.url_join(unit_inventory.base_URL, unit_path) _request = listener.create_request(unit_URL, destination, unit, unit_ref) download_list.append(_request) if request.cancelled(): return container = ContentContainer() request.summary.sources = \ container.download(request.cancel_event, request.downloader, download_list, listener) request.summary.errors.extend(listener.error_list)
def _add_units(self, request, unit_inventory): """ Determine the list of units contained in the parent inventory but are not contained in the child inventory and add them. For each unit, this is performed in the following steps: 1. Download the file (if defined) associated with the unit. 2. Add the unit to the child inventory. 3. Associate the unit to the repository. The unit is added only: 1. If no file is associated with unit. 2. The file associated with the unit is successfully downloaded. For units with files, the unit is added to the inventory as part of the unit download manager callback. :param request: A synchronization request. :type request: SyncRequest :param unit_inventory: The inventory of both parent and child content units. :type unit_inventory: UnitInventory """ download_list = [] units = unit_inventory.units_on_parent_only() request.progress.begin_adding_units(len(units)) listener = ContentDownloadListener(self, request) for unit, unit_ref in units: if request.cancelled(): return self._reset_storage_path(unit) if not self._needs_download(unit): # unit has no file associated self.add_unit(request, unit_ref.fetch()) continue unit_path, destination = self._path_and_destination(unit) unit_URL = pathlib.url_join(unit_inventory.base_URL, unit_path) _request = listener.create_request(unit_URL, destination, unit, unit_ref) download_list.append(_request) if request.cancelled(): return container = ContentContainer() request.summary.sources = \ container.download(request.cancel_event, request.downloader, download_list, listener) request.summary.errors.extend(listener.error_list)