def import_data_sqla(in_path, group=None, ignore_unknown_nodes=False, extras_mode_existing='kcl', extras_mode_new='import', comment_mode='newest', silent=False, **kwargs): """Import exported AiiDA archive to the AiiDA database and repository. Specific for the SQLAlchemy backend. If ``in_path`` is a folder, calls extract_tree; otherwise, tries to detect the compression format (zip, tar.gz, tar.bz2, ...) and calls the correct function. :param in_path: the path to a file or folder that can be imported in AiiDA. :type in_path: str :param group: Group wherein all imported Nodes will be placed. :type group: :py:class:`~aiida.orm.groups.Group` :param extras_mode_existing: 3 letter code that will identify what to do with the extras import. The first letter acts on extras that are present in the original node and not present in the imported node. Can be either: 'k' (keep it) or 'n' (do not keep it). The second letter acts on the imported extras that are not present in the original node. Can be either: 'c' (create it) or 'n' (do not create it). The third letter defines what to do in case of a name collision. Can be either: 'l' (leave the old value), 'u' (update with a new value), 'd' (delete the extra), or 'a' (ask what to do if the content is different). :type extras_mode_existing: str :param extras_mode_new: 'import' to import extras of new nodes or 'none' to ignore them. :type extras_mode_new: str :param comment_mode: Comment import modes (when same UUIDs are found). Can be either: 'newest' (will keep the Comment with the most recent modification time (mtime)) or 'overwrite' (will overwrite existing Comments with the ones from the import file). :type comment_mode: str :param silent: suppress progress bar and summary. :type silent: bool :return: New and existing Nodes and Links. :rtype: dict :raises `~aiida.tools.importexport.common.exceptions.ImportValidationError`: if parameters or the contents of `metadata.json` or `data.json` can not be validated. :raises `~aiida.tools.importexport.common.exceptions.CorruptArchive`: if the provided archive at ``in_path`` is corrupted. :raises `~aiida.tools.importexport.common.exceptions.IncompatibleArchiveVersionError`: if the provided archive's export version is not equal to the export version of AiiDA at the moment of import. :raises `~aiida.tools.importexport.common.exceptions.ArchiveImportError`: if there are any internal errors when importing. :raises `~aiida.tools.importexport.common.exceptions.ImportUniquenessError`: if a new unique entity can not be created. """ from aiida.backends.sqlalchemy.models.node import DbNode, DbLink from aiida.backends.sqlalchemy.utils import flag_modified # This is the export version expected by this function expected_export_version = StrictVersion(EXPORT_VERSION) # The returned dictionary with new and existing nodes and links ret_dict = {} # Initial check(s) if group: if not isinstance(group, Group): raise exceptions.ImportValidationError( 'group must be a Group entity') elif not group.is_stored: group.store() if silent: logging.disable(level=logging.CRITICAL) ################ # EXTRACT DATA # ################ # The sandbox has to remain open until the end with SandboxFolder() as folder: if os.path.isdir(in_path): extract_tree(in_path, folder) else: if tarfile.is_tarfile(in_path): extract_tar(in_path, folder, silent=silent, nodes_export_subfolder=NODES_EXPORT_SUBFOLDER, **kwargs) elif zipfile.is_zipfile(in_path): extract_zip(in_path, folder, silent=silent, nodes_export_subfolder=NODES_EXPORT_SUBFOLDER, **kwargs) else: raise exceptions.ImportValidationError( 'Unable to detect the input file format, it is neither a ' 'tar file, nor a (possibly compressed) zip file.') if not folder.get_content_list(): raise exceptions.CorruptArchive( 'The provided file/folder ({}) is empty'.format(in_path)) try: IMPORT_LOGGER.debug('CACHING metadata.json') with open(folder.get_abs_path('metadata.json'), encoding='utf8') as fhandle: metadata = json.load(fhandle) IMPORT_LOGGER.debug('CACHING data.json') with open(folder.get_abs_path('data.json'), encoding='utf8') as fhandle: data = json.load(fhandle) except IOError as error: raise exceptions.CorruptArchive( 'Unable to find the file {} in the import file or folder'. format(error.filename)) ###################### # PRELIMINARY CHECKS # ###################### export_version = StrictVersion(str(metadata['export_version'])) if export_version != expected_export_version: msg = 'Export file version is {}, can import only version {}'\ .format(metadata['export_version'], expected_export_version) if export_version < expected_export_version: msg += "\nUse 'verdi export migrate' to update this export file." else: msg += '\nUpdate your AiiDA version in order to import this file.' raise exceptions.IncompatibleArchiveVersionError(msg) start_summary(in_path, comment_mode, extras_mode_new, extras_mode_existing) ################################################################### # CREATE UUID REVERSE TABLES AND CHECK IF # # I HAVE ALL NODES FOR THE LINKS # ################################################################### IMPORT_LOGGER.debug( 'CHECKING IF NODES FROM LINKS ARE IN DB OR ARCHIVE...') linked_nodes = set( chain.from_iterable( (l['input'], l['output']) for l in data['links_uuid'])) group_nodes = set(chain.from_iterable(data['groups_uuid'].values())) # Check that UUIDs are valid linked_nodes = set(x for x in linked_nodes if validate_uuid(x)) group_nodes = set(x for x in group_nodes if validate_uuid(x)) import_nodes_uuid = set() for value in data['export_data'].get(NODE_ENTITY_NAME, {}).values(): import_nodes_uuid.add(value['uuid']) unknown_nodes = linked_nodes.union(group_nodes) - import_nodes_uuid if unknown_nodes and not ignore_unknown_nodes: raise exceptions.DanglingLinkError( 'The import file refers to {} nodes with unknown UUID, therefore it cannot be imported. Either first ' 'import the unknown nodes, or export also the parents when exporting. The unknown UUIDs are:\n' ''.format(len(unknown_nodes)) + '\n'.join('* {}'.format(uuid) for uuid in unknown_nodes)) ################################### # DOUBLE-CHECK MODEL DEPENDENCIES # ################################### # The entity import order. It is defined by the database model relationships. entity_order = [ USER_ENTITY_NAME, COMPUTER_ENTITY_NAME, NODE_ENTITY_NAME, GROUP_ENTITY_NAME, LOG_ENTITY_NAME, COMMENT_ENTITY_NAME ] # I make a new list that contains the entity names: # eg: ['User', 'Computer', 'Node', 'Group'] for import_field_name in metadata['all_fields_info']: if import_field_name not in entity_order: raise exceptions.ImportValidationError( "You are trying to import an unknown model '{}'!".format( import_field_name)) for idx, entity_name in enumerate(entity_order): dependencies = [] # for every field, I checked the dependencies given as value for key requires for field in metadata['all_fields_info'][entity_name].values(): try: dependencies.append(field['requires']) except KeyError: # (No ForeignKey) pass for dependency in dependencies: if dependency not in entity_order[:idx]: raise exceptions.ArchiveImportError( 'Entity {} requires {} but would be loaded first; stopping...' .format(entity_name, dependency)) ################################################### # CREATE IMPORT DATA DIRECT UNIQUE_FIELD MAPPINGS # ################################################### # This is nested dictionary of entity_name:{id:uuid} # to map one id (the pk) to a different one. # One of the things to remove for v0.4 # { # 'Node': {2362: '82a897b5-fb3a-47d7-8b22-c5fe1b4f2c14', # 2363: 'ef04aa5d-99e7-4bfd-95ef-fe412a6a3524', 2364: '1dc59576-af21-4d71-81c2-bac1fc82a84a'}, # 'User': {1: 'aiida@localhost'} # } IMPORT_LOGGER.debug('CREATING PK-2-UUID/EMAIL MAPPING...') import_unique_ids_mappings = {} # Export data since v0.3 contains the keys entity_name for entity_name, import_data in data['export_data'].items(): # Again I need the entity_name since that's what's being stored since 0.3 if entity_name in metadata['unique_identifiers']: # I have to reconvert the pk to integer import_unique_ids_mappings[entity_name] = { int(k): v[metadata['unique_identifiers'][entity_name]] for k, v in import_data.items() } ############### # IMPORT DATA # ############### # DO ALL WITH A TRANSACTION import aiida.backends.sqlalchemy session = aiida.backends.sqlalchemy.get_scoped_session() try: foreign_ids_reverse_mappings = {} new_entries = {} existing_entries = {} IMPORT_LOGGER.debug('GENERATING LIST OF DATA...') # Instantiate progress bar progress_bar = get_progress_bar(total=1, leave=False, disable=silent) pbar_base_str = 'Generating list of data - ' # Get total entities from data.json # To be used with progress bar number_of_entities = 0 # I first generate the list of data for entity_name in entity_order: entity = entity_names_to_entities[entity_name] # I get the unique identifier, since v0.3 stored under entity_name unique_identifier = metadata['unique_identifiers'].get( entity_name, None) # so, new_entries. Also, since v0.3 it makes more sense to use the entity_name new_entries[entity_name] = {} existing_entries[entity_name] = {} foreign_ids_reverse_mappings[entity_name] = {} # Not necessarily all models are exported if entity_name in data['export_data']: IMPORT_LOGGER.debug(' %s...', entity_name) progress_bar.set_description_str(pbar_base_str + entity_name, refresh=False) number_of_entities += len(data['export_data'][entity_name]) if unique_identifier is not None: import_unique_ids = set( v[unique_identifier] for v in data['export_data'][entity_name].values()) relevant_db_entries = {} if import_unique_ids: builder = QueryBuilder() builder.append(entity, filters={ unique_identifier: { 'in': import_unique_ids } }, project='*') if builder.count(): progress_bar = get_progress_bar( total=builder.count(), disable=silent) for object_ in builder.iterall(): progress_bar.update() relevant_db_entries.update({ getattr(object_[0], unique_identifier): object_[0] }) foreign_ids_reverse_mappings[entity_name] = { k: v.pk for k, v in relevant_db_entries.items() } IMPORT_LOGGER.debug(' GOING THROUGH ARCHIVE...') imported_comp_names = set() for key, value in data['export_data'][ entity_name].items(): if entity_name == GROUP_ENTITY_NAME: # Check if there is already a group with the same name, # and if so, recreate the name orig_label = value['label'] dupl_counter = 0 while QueryBuilder().append( entity, filters={ 'label': { '==': value['label'] } }).count(): # Rename the new group value[ 'label'] = orig_label + DUPL_SUFFIX.format( dupl_counter) dupl_counter += 1 if dupl_counter == 100: raise exceptions.ImportUniquenessError( 'A group of that label ( {} ) already exists and I could not create a new ' 'one'.format(orig_label)) elif entity_name == COMPUTER_ENTITY_NAME: # The following is done for compatibility # reasons in case the export file was generated # with the Django export method. In Django the # metadata and the transport parameters are # stored as (unicode) strings of the serialized # JSON objects and not as simple serialized # JSON objects. if isinstance(value['metadata'], (str, bytes)): value['metadata'] = json.loads( value['metadata']) # Check if there is already a computer with the # same name in the database builder = QueryBuilder() builder.append( entity, filters={'name': { '==': value['name'] }}, project=['*'], tag='res') dupl = builder.count( ) or value['name'] in imported_comp_names dupl_counter = 0 orig_name = value['name'] while dupl: # Rename the new computer value[ 'name'] = orig_name + DUPL_SUFFIX.format( dupl_counter) builder = QueryBuilder() builder.append(entity, filters={ 'name': { '==': value['name'] } }, project=['*'], tag='res') dupl = builder.count( ) or value['name'] in imported_comp_names dupl_counter += 1 if dupl_counter == 100: raise exceptions.ImportUniquenessError( 'A computer of that name ( {} ) already exists and I could not create a ' 'new one'.format(orig_name)) imported_comp_names.add(value['name']) if value[unique_identifier] in relevant_db_entries: # Already in DB # again, switched to entity_name in v0.3 existing_entries[entity_name][key] = value else: # To be added new_entries[entity_name][key] = value else: new_entries[entity_name] = data['export_data'][ entity_name] # Progress bar - reset for import progress_bar = get_progress_bar(total=number_of_entities, disable=silent) reset_progress_bar = {} # I import data from the given model for entity_name in entity_order: entity = entity_names_to_entities[entity_name] fields_info = metadata['all_fields_info'].get(entity_name, {}) unique_identifier = metadata['unique_identifiers'].get( entity_name, '') # Progress bar initialization - Model if reset_progress_bar: progress_bar = get_progress_bar( total=reset_progress_bar['total'], disable=silent) progress_bar.n = reset_progress_bar['n'] reset_progress_bar = {} pbar_base_str = '{}s - '.format(entity_name) progress_bar.set_description_str(pbar_base_str + 'Initializing', refresh=True) # EXISTING ENTRIES if existing_entries[entity_name]: # Progress bar update - Model progress_bar.set_description_str( pbar_base_str + '{} existing entries'.format( len(existing_entries[entity_name])), refresh=True) for import_entry_pk, entry_data in existing_entries[ entity_name].items(): unique_id = entry_data[unique_identifier] existing_entry_pk = foreign_ids_reverse_mappings[ entity_name][unique_id] import_data = dict( deserialize_field(k, v, fields_info=fields_info, import_unique_ids_mappings= import_unique_ids_mappings, foreign_ids_reverse_mappings= foreign_ids_reverse_mappings) for k, v in entry_data.items()) # TODO COMPARE, AND COMPARE ATTRIBUTES if entity_name == COMMENT_ENTITY_NAME: new_entry_uuid = merge_comment(import_data, comment_mode) if new_entry_uuid is not None: entry_data[unique_identifier] = new_entry_uuid new_entries[entity_name][ import_entry_pk] = entry_data if entity_name not in ret_dict: ret_dict[entity_name] = {'new': [], 'existing': []} ret_dict[entity_name]['existing'].append( (import_entry_pk, existing_entry_pk)) IMPORT_LOGGER.debug('Existing %s: %s (%s->%s)', entity_name, unique_id, import_entry_pk, existing_entry_pk) # Store all objects for this model in a list, and store them # all in once at the end. objects_to_create = list() # In the following list we add the objects to be updated objects_to_update = list() # This is needed later to associate the import entry with the new pk import_new_entry_pks = dict() # NEW ENTRIES if new_entries[entity_name]: # Progress bar update - Model progress_bar.set_description_str( pbar_base_str + '{} new entries'.format(len(new_entries[entity_name])), refresh=True) for import_entry_pk, entry_data in new_entries[ entity_name].items(): unique_id = entry_data[unique_identifier] import_data = dict( deserialize_field(k, v, fields_info=fields_info, import_unique_ids_mappings= import_unique_ids_mappings, foreign_ids_reverse_mappings= foreign_ids_reverse_mappings) for k, v in entry_data.items()) # We convert the Django fields to SQLA. Note that some of # the Django fields were converted to SQLA compatible # fields by the deserialize_field method. This was done # for optimization reasons in Django but makes them # compatible with the SQLA schema and they don't need any # further conversion. if entity_name in file_fields_to_model_fields: for file_fkey in file_fields_to_model_fields[ entity_name]: # This is an exception because the DbLog model defines the `_metadata` column instead of the # `metadata` column used in the Django model. This is because the SqlAlchemy model base # class already has a metadata attribute that cannot be overridden. For consistency, the # `DbLog` class however expects the `metadata` keyword in its constructor, so we should # ignore the mapping here if entity_name == LOG_ENTITY_NAME and file_fkey == 'metadata': continue model_fkey = file_fields_to_model_fields[ entity_name][file_fkey] if model_fkey in import_data: continue import_data[model_fkey] = import_data[file_fkey] import_data.pop(file_fkey, None) db_entity = get_object_from_string( entity_names_to_sqla_schema[entity_name]) objects_to_create.append(db_entity(**import_data)) import_new_entry_pks[unique_id] = import_entry_pk if entity_name == NODE_ENTITY_NAME: IMPORT_LOGGER.debug( 'STORING NEW NODE REPOSITORY FILES & ATTRIBUTES...') # NEW NODES for object_ in objects_to_create: import_entry_uuid = object_.uuid import_entry_pk = import_new_entry_pks[ import_entry_uuid] # Progress bar initialization - Node progress_bar.update() pbar_node_base_str = pbar_base_str + 'UUID={} - '.format( import_entry_uuid.split('-')[0]) # Before storing entries in the DB, I store the files (if these are nodes). # Note: only for new entries! subfolder = folder.get_subfolder( os.path.join(NODES_EXPORT_SUBFOLDER, export_shard_uuid(import_entry_uuid))) if not subfolder.exists(): raise exceptions.CorruptArchive( 'Unable to find the repository folder for Node with UUID={} in the exported ' 'file'.format(import_entry_uuid)) destdir = RepositoryFolder( section=Repository._section_name, uuid=import_entry_uuid) # Replace the folder, possibly destroying existing previous folders, and move the files # (faster if we are on the same filesystem, and in any case the source is a SandboxFolder) progress_bar.set_description_str(pbar_node_base_str + 'Repository', refresh=True) destdir.replace_with_folder(subfolder.abspath, move=True, overwrite=True) # For Nodes, we also have to store Attributes! IMPORT_LOGGER.debug('STORING NEW NODE ATTRIBUTES...') progress_bar.set_description_str(pbar_node_base_str + 'Attributes', refresh=True) # Get attributes from import file try: object_.attributes = data['node_attributes'][str( import_entry_pk)] except KeyError: raise exceptions.CorruptArchive( 'Unable to find attribute info for Node with UUID={}' .format(import_entry_uuid)) # For DbNodes, we also have to store extras if extras_mode_new == 'import': IMPORT_LOGGER.debug('STORING NEW NODE EXTRAS...') progress_bar.set_description_str( pbar_node_base_str + 'Extras', refresh=True) # Get extras from import file try: extras = data['node_extras'][str( import_entry_pk)] except KeyError: raise exceptions.CorruptArchive( 'Unable to find extra info for Node with UUID={}' .format(import_entry_uuid)) # TODO: remove when aiida extras will be moved somewhere else # from here extras = { key: value for key, value in extras.items() if not key.startswith('_aiida_') } if object_.node_type.endswith('code.Code.'): extras = { key: value for key, value in extras.items() if not key == 'hidden' } # till here object_.extras = extras elif extras_mode_new == 'none': IMPORT_LOGGER.debug('SKIPPING NEW NODE EXTRAS...') else: raise exceptions.ImportValidationError( "Unknown extras_mode_new value: {}, should be either 'import' or 'none'" ''.format(extras_mode_new)) # EXISTING NODES (Extras) IMPORT_LOGGER.debug('UPDATING EXISTING NODE EXTRAS...') import_existing_entry_pks = { entry_data[unique_identifier]: import_entry_pk for import_entry_pk, entry_data in existing_entries[entity_name].items() } for node in session.query(DbNode).filter( DbNode.uuid.in_(import_existing_entry_pks)).all(): import_entry_uuid = str(node.uuid) import_entry_pk = import_existing_entry_pks[ import_entry_uuid] # Progress bar initialization - Node pbar_node_base_str = pbar_base_str + 'UUID={} - '.format( import_entry_uuid.split('-')[0]) progress_bar.set_description_str(pbar_node_base_str + 'Extras', refresh=False) progress_bar.update() # Get extras from import file try: extras = data['node_extras'][str(import_entry_pk)] except KeyError: raise exceptions.CorruptArchive( 'Unable to find extra info for Node with UUID={}' .format(import_entry_uuid)) old_extras = node.extras.copy() # TODO: remove when aiida extras will be moved somewhere else # from here extras = { key: value for key, value in extras.items() if not key.startswith('_aiida_') } if node.node_type.endswith('code.Code.'): extras = { key: value for key, value in extras.items() if not key == 'hidden' } # till here new_extras = merge_extras(node.extras, extras, extras_mode_existing) if new_extras != old_extras: node.extras = new_extras flag_modified(node, 'extras') objects_to_update.append(node) else: # Update progress bar with new non-Node entries progress_bar.update(n=len(existing_entries[entity_name]) + len(new_entries[entity_name])) progress_bar.set_description_str(pbar_base_str + 'Storing', refresh=True) # Store them all in once; However, the PK are not set in this way... if objects_to_create: session.add_all(objects_to_create) if objects_to_update: session.add_all(objects_to_update) session.flush() just_saved = {} if import_new_entry_pks.keys(): reset_progress_bar = { 'total': progress_bar.total, 'n': progress_bar.n } progress_bar = get_progress_bar( total=len(import_new_entry_pks), disable=silent) builder = QueryBuilder() builder.append(entity, filters={ unique_identifier: { 'in': list(import_new_entry_pks.keys()) } }, project=[unique_identifier, 'id']) for entry in builder.iterall(): progress_bar.update() just_saved.update({entry[0]: entry[1]}) progress_bar.set_description_str(pbar_base_str + 'Done!', refresh=True) # Now I have the PKs, print the info # Moreover, add newly created Nodes to foreign_ids_reverse_mappings for unique_id, new_pk in just_saved.items(): from uuid import UUID if isinstance(unique_id, UUID): unique_id = str(unique_id) import_entry_pk = import_new_entry_pks[unique_id] foreign_ids_reverse_mappings[entity_name][ unique_id] = new_pk if entity_name not in ret_dict: ret_dict[entity_name] = {'new': [], 'existing': []} ret_dict[entity_name]['new'].append( (import_entry_pk, new_pk)) IMPORT_LOGGER.debug('N %s: %s (%s->%s)', entity_name, unique_id, import_entry_pk, new_pk) IMPORT_LOGGER.debug('STORING NODE LINKS...') import_links = data['links_uuid'] if import_links: progress_bar = get_progress_bar(total=len(import_links), disable=silent) pbar_base_str = 'Links - ' for link in import_links: # Check for dangling Links within the, supposed, self-consistent archive progress_bar.set_description_str( pbar_base_str + 'label={}'.format(link['label']), refresh=False) progress_bar.update() try: in_id = foreign_ids_reverse_mappings[NODE_ENTITY_NAME][ link['input']] out_id = foreign_ids_reverse_mappings[NODE_ENTITY_NAME][ link['output']] except KeyError: if ignore_unknown_nodes: continue raise exceptions.ImportValidationError( 'Trying to create a link with one or both unknown nodes, stopping (in_uuid={}, out_uuid={}, ' 'label={}, type={})'.format(link['input'], link['output'], link['label'], link['type'])) # Since backend specific Links (DbLink) are not validated upon creation, we will now validate them. source = QueryBuilder().append(Node, filters={ 'id': in_id }, project='*').first()[0] target = QueryBuilder().append(Node, filters={ 'id': out_id }, project='*').first()[0] link_type = LinkType(link['type']) # Check for existence of a triple link, i.e. unique triple. # If it exists, then the link already exists, continue to next link, otherwise, validate link. if link_triple_exists(source, target, link_type, link['label']): continue try: validate_link(source, target, link_type, link['label']) except ValueError as why: raise exceptions.ImportValidationError( 'Error occurred during Link validation: {}'.format( why)) # New link session.add( DbLink(input_id=in_id, output_id=out_id, label=link['label'], type=link['type'])) if 'Link' not in ret_dict: ret_dict['Link'] = {'new': []} ret_dict['Link']['new'].append((in_id, out_id)) IMPORT_LOGGER.debug(' (%d new links...)', len(ret_dict.get('Link', {}).get('new', []))) IMPORT_LOGGER.debug('STORING GROUP ELEMENTS...') import_groups = data['groups_uuid'] if import_groups: progress_bar = get_progress_bar(total=len(import_groups), disable=silent) pbar_base_str = 'Groups - ' for groupuuid, groupnodes in import_groups.items(): # # TODO: cache these to avoid too many queries qb_group = QueryBuilder().append( Group, filters={'uuid': { '==': groupuuid }}) group_ = qb_group.first()[0] progress_bar.set_description_str( pbar_base_str + 'label={}'.format(group_.label), refresh=False) progress_bar.update() nodes_ids_to_add = [ foreign_ids_reverse_mappings[NODE_ENTITY_NAME][node_uuid] for node_uuid in groupnodes ] qb_nodes = QueryBuilder().append( Node, filters={'id': { 'in': nodes_ids_to_add }}) # Adding nodes to group avoiding the SQLA ORM to increase speed nodes_to_add = [n[0].backend_entity for n in qb_nodes.all()] group_.backend_entity.add_nodes(nodes_to_add, skip_orm=True) ###################################################### # Put everything in a specific group ###################################################### existing = existing_entries.get(NODE_ENTITY_NAME, {}) existing_pk = [ foreign_ids_reverse_mappings[NODE_ENTITY_NAME][v['uuid']] for v in existing.values() ] new = new_entries.get(NODE_ENTITY_NAME, {}) new_pk = [ foreign_ids_reverse_mappings[NODE_ENTITY_NAME][v['uuid']] for v in new.values() ] pks_for_group = existing_pk + new_pk # So that we do not create empty groups if pks_for_group: # If user specified a group, import all things into it if not group: from aiida.backends.sqlalchemy.models.group import DbGroup # Get an unique name for the import group, based on the current (local) time basename = timezone.localtime( timezone.now()).strftime('%Y%m%d-%H%M%S') counter = 0 group_label = basename while session.query(DbGroup).filter( DbGroup.label == group_label).count() > 0: counter += 1 group_label = '{}_{}'.format(basename, counter) if counter == 100: raise exceptions.ImportUniquenessError( "Overflow of import groups (more than 100 import groups exists with basename '{}')" ''.format(basename)) group = ImportGroup(label=group_label) session.add(group.backend_entity._dbmodel) # Adding nodes to group avoiding the SQLA ORM to increase speed builder = QueryBuilder().append( Node, filters={'id': { 'in': pks_for_group }}) progress_bar = get_progress_bar(total=len(pks_for_group), disable=silent) progress_bar.set_description_str( 'Creating import Group - Preprocessing', refresh=True) first = True nodes = [] for entry in builder.iterall(): if first: progress_bar.set_description_str( 'Creating import Group', refresh=False) first = False progress_bar.update() nodes.append(entry[0].backend_entity) group.backend_entity.add_nodes(nodes, skip_orm=True) progress_bar.set_description_str('Done (cleaning up)', refresh=True) else: IMPORT_LOGGER.debug( 'No Nodes to import, so no Group created, if it did not already exist' ) IMPORT_LOGGER.debug('COMMITTING EVERYTHING...') session.commit() # Finalize Progress bar close_progress_bar(leave=False) # Summarize import result_summary(ret_dict, getattr(group, 'label', None)) except: # Finalize Progress bar close_progress_bar(leave=False) result_summary({}, None) IMPORT_LOGGER.debug('Rolling back') session.rollback() raise # Reset logging level if silent: logging.disable(level=logging.NOTSET) return ret_dict
def export_tree(entities=None, folder=None, allowed_licenses=None, forbidden_licenses=None, silent=False, include_comments=True, include_logs=True, **kwargs): """Export the entries passed in the 'entities' list to a file tree. .. deprecated:: 1.2.1 Support for the parameter `what` will be removed in `v2.0.0`. Please use `entities` instead. :param entities: a list of entity instances; they can belong to different models/entities. :type entities: list :param folder: a temporary folder to build the archive before compression. :type folder: :py:class:`~aiida.common.folders.Folder` :param allowed_licenses: List or function. If a list, then checks whether all licenses of Data nodes are in the list. If a function, then calls function for licenses of Data nodes expecting True if license is allowed, False otherwise. :type allowed_licenses: list :param forbidden_licenses: List or function. If a list, then checks whether all licenses of Data nodes are in the list. If a function, then calls function for licenses of Data nodes expecting True if license is allowed, False otherwise. :type forbidden_licenses: list :param silent: suppress console prints and progress bar. :type silent: bool :param include_comments: In-/exclude export of comments for given node(s) in ``entities``. Default: True, *include* comments in export (as well as relevant users). :type include_comments: bool :param include_logs: In-/exclude export of logs for given node(s) in ``entities``. Default: True, *include* logs in export. :type include_logs: bool :param kwargs: graph traversal rules. See :const:`aiida.common.links.GraphTraversalRules` what rule names are toggleable and what the defaults are. :raises `~aiida.tools.importexport.common.exceptions.ArchiveExportError`: if there are any internal errors when exporting. :raises `~aiida.common.exceptions.LicensingException`: if any node is licensed under forbidden license. """ from collections import defaultdict from aiida.tools.graph.graph_traversers import get_nodes_export if silent: logging.disable(level=logging.CRITICAL) EXPORT_LOGGER.debug('STARTING EXPORT...') # Backwards-compatibility entities = deprecated_parameters( old={ 'name': 'what', 'value': kwargs.pop('what', None) }, new={ 'name': 'entities', 'value': entities }, ) type_check( entities, (list, tuple, set), msg='`entities` must be specified and given as a list of AiiDA entities' ) entities = list(entities) type_check( folder, (Folder, ZipFolder), msg='`folder` must be specified and given as an AiiDA Folder entity') all_fields_info, unique_identifiers = get_all_fields_info() entities_starting_set = defaultdict(set) # The set that contains the nodes ids of the nodes that should be exported given_node_entry_ids = set() given_log_entry_ids = set() given_comment_entry_ids = set() # Instantiate progress bar - go through list of `entities` pbar_total = len(entities) + 1 if entities else 1 progress_bar = get_progress_bar(total=pbar_total, leave=False, disable=silent) progress_bar.set_description_str('Collecting chosen entities', refresh=False) # I store a list of the actual dbnodes for entry in entities: progress_bar.update() # This returns the class name (as in imports). E.g. for a model node: # aiida.backends.djsite.db.models.DbNode # entry_class_string = get_class_string(entry) # Now a load the backend-independent name into entry_entity_name, e.g. Node! # entry_entity_name = schema_to_entity_names(entry_class_string) if issubclass(entry.__class__, orm.Group): entities_starting_set[GROUP_ENTITY_NAME].add(entry.uuid) elif issubclass(entry.__class__, orm.Node): entities_starting_set[NODE_ENTITY_NAME].add(entry.uuid) given_node_entry_ids.add(entry.pk) elif issubclass(entry.__class__, orm.Computer): entities_starting_set[COMPUTER_ENTITY_NAME].add(entry.uuid) else: raise exceptions.ArchiveExportError( 'I was given {} ({}), which is not a Node, Computer, or Group instance' .format(entry, type(entry))) # Add all the nodes contained within the specified groups if GROUP_ENTITY_NAME in entities_starting_set: progress_bar.set_description_str('Retrieving Nodes from Groups ...', refresh=True) # Use single query instead of given_group.nodes iterator for performance. qh_groups = orm.QueryBuilder().append( orm.Group, filters={ 'uuid': { 'in': entities_starting_set[GROUP_ENTITY_NAME] } }, tag='groups').queryhelp # Delete this import once the dbexport.zip module has been renamed from builtins import zip # pylint: disable=redefined-builtin node_results = orm.QueryBuilder(**qh_groups).append( orm.Node, project=['id', 'uuid'], with_group='groups').all() if node_results: pks, uuids = map(list, zip(*node_results)) entities_starting_set[NODE_ENTITY_NAME].update(uuids) given_node_entry_ids.update(pks) del node_results, pks, uuids progress_bar.update() # We will iteratively explore the AiiDA graph to find further nodes that should also be exported. # At the same time, we will create the links_uuid list of dicts to be exported progress_bar = get_progress_bar(total=1, disable=silent) progress_bar.set_description_str( 'Getting provenance and storing links ...', refresh=True) traverse_output = get_nodes_export(starting_pks=given_node_entry_ids, get_links=True, **kwargs) node_ids_to_be_exported = traverse_output['nodes'] graph_traversal_rules = traverse_output['rules'] # A utility dictionary for mapping PK to UUID. if node_ids_to_be_exported: qbuilder = orm.QueryBuilder().append( orm.Node, project=('id', 'uuid'), filters={'id': { 'in': node_ids_to_be_exported }}, ) node_pk_2_uuid_mapping = dict(qbuilder.all()) else: node_pk_2_uuid_mapping = {} # The set of tuples now has to be transformed to a list of dicts links_uuid = [{ 'input': node_pk_2_uuid_mapping[link.source_id], 'output': node_pk_2_uuid_mapping[link.target_id], 'label': link.link_label, 'type': link.link_type } for link in traverse_output['links']] progress_bar.update() # Progress bar initialization - Entities progress_bar = get_progress_bar(total=1, disable=silent) progress_bar.set_description_str('Initializing export of all entities', refresh=True) ## Universal "entities" attributed to all types of nodes # Logs if include_logs and node_ids_to_be_exported: # Get related log(s) - universal for all nodes builder = orm.QueryBuilder() builder.append(orm.Log, filters={'dbnode_id': { 'in': node_ids_to_be_exported }}, project='uuid') res = set(builder.all(flat=True)) given_log_entry_ids.update(res) # Comments if include_comments and node_ids_to_be_exported: # Get related log(s) - universal for all nodes builder = orm.QueryBuilder() builder.append(orm.Comment, filters={'dbnode_id': { 'in': node_ids_to_be_exported }}, project='uuid') res = set(builder.all(flat=True)) given_comment_entry_ids.update(res) # Here we get all the columns that we plan to project per entity that we would like to extract given_entities = set(entities_starting_set.keys()) if node_ids_to_be_exported: given_entities.add(NODE_ENTITY_NAME) if given_log_entry_ids: given_entities.add(LOG_ENTITY_NAME) if given_comment_entry_ids: given_entities.add(COMMENT_ENTITY_NAME) progress_bar.update() if given_entities: progress_bar = get_progress_bar(total=len(given_entities), disable=silent) pbar_base_str = 'Preparing entities' entries_to_add = dict() for given_entity in given_entities: progress_bar.set_description_str(pbar_base_str + ' - {}s'.format(given_entity), refresh=False) progress_bar.update() project_cols = ['id'] # The following gets a list of fields that we need, # e.g. user, mtime, uuid, computer entity_prop = all_fields_info[given_entity].keys() # Here we do the necessary renaming of properties for prop in entity_prop: # nprop contains the list of projections nprop = (file_fields_to_model_fields[given_entity][prop] if prop in file_fields_to_model_fields[given_entity] else prop) project_cols.append(nprop) # Getting the ids that correspond to the right entity entry_uuids_to_add = entities_starting_set.get(given_entity, set()) if not entry_uuids_to_add: if given_entity == LOG_ENTITY_NAME: entry_uuids_to_add = given_log_entry_ids elif given_entity == COMMENT_ENTITY_NAME: entry_uuids_to_add = given_comment_entry_ids elif given_entity == NODE_ENTITY_NAME: entry_uuids_to_add.update( {node_pk_2_uuid_mapping[_] for _ in node_ids_to_be_exported}) builder = orm.QueryBuilder() builder.append(entity_names_to_entities[given_entity], filters={'uuid': { 'in': entry_uuids_to_add }}, project=project_cols, tag=given_entity, outerjoin=True) entries_to_add[given_entity] = builder # TODO (Spyros) To see better! Especially for functional licenses # Check the licenses of exported data. if allowed_licenses is not None or forbidden_licenses is not None: builder = orm.QueryBuilder() builder.append(orm.Node, project=['id', 'attributes.source.license'], filters={'id': { 'in': node_ids_to_be_exported }}) # Skip those nodes where the license is not set (this is the standard behavior with Django) node_licenses = list( (a, b) for [a, b] in builder.all() if b is not None) check_licenses(node_licenses, allowed_licenses, forbidden_licenses) ############################################################ ##### Start automatic recursive export data generation ##### ############################################################ EXPORT_LOGGER.debug('GATHERING DATABASE ENTRIES...') if entries_to_add: progress_bar = get_progress_bar(total=len(entries_to_add), disable=silent) export_data = defaultdict(dict) entity_separator = '_' for entity_name, partial_query in entries_to_add.items(): progress_bar.set_description_str('Exporting {}s'.format(entity_name), refresh=False) progress_bar.update() foreign_fields = { k: v for k, v in all_fields_info[entity_name].items() if 'requires' in v } for value in foreign_fields.values(): ref_model_name = value['requires'] fill_in_query(partial_query, entity_name, ref_model_name, [entity_name], entity_separator) for temp_d in partial_query.iterdict(): for key in temp_d: # Get current entity current_entity = key.split(entity_separator)[-1] # This is a empty result of an outer join. # It should not be taken into account. if temp_d[key]['id'] is None: continue export_data[current_entity].update({ temp_d[key]['id']: serialize_dict(temp_d[key], remove_fields=['id'], rename_fields=model_fields_to_file_fields[ current_entity]) }) # Close progress up until this point in order to print properly close_progress_bar(leave=False) ####################################### # Manually manage attributes and extras ####################################### # Pointer. Renaming, since Nodes have now technically been retrieved and "stored" all_node_pks = node_ids_to_be_exported model_data = sum(len(model_data) for model_data in export_data.values()) if not model_data: EXPORT_LOGGER.log(msg='Nothing to store, exiting...', level=LOG_LEVEL_REPORT) return EXPORT_LOGGER.log( msg='Exporting a total of {} database entries, of which {} are Nodes.'. format(model_data, len(all_node_pks)), level=LOG_LEVEL_REPORT) # Instantiate new progress bar progress_bar = get_progress_bar(total=1, leave=False, disable=silent) # ATTRIBUTES and EXTRAS EXPORT_LOGGER.debug('GATHERING NODE ATTRIBUTES AND EXTRAS...') node_attributes = {} node_extras = {} # Another QueryBuilder query to get the attributes and extras. TODO: See if this can be optimized if all_node_pks: all_nodes_query = orm.QueryBuilder().append( orm.Node, filters={'id': { 'in': all_node_pks }}, project=['id', 'attributes', 'extras']) progress_bar = get_progress_bar(total=all_nodes_query.count(), disable=silent) progress_bar.set_description_str('Exporting Attributes and Extras', refresh=False) for node_pk, attributes, extras in all_nodes_query.iterall(): progress_bar.update() node_attributes[str(node_pk)] = attributes node_extras[str(node_pk)] = extras EXPORT_LOGGER.debug('GATHERING GROUP ELEMENTS...') groups_uuid = defaultdict(list) # If a group is in the exported data, we export the group/node correlation if GROUP_ENTITY_NAME in export_data: group_uuids_with_node_uuids = orm.QueryBuilder().append( orm.Group, filters={ 'id': { 'in': export_data[GROUP_ENTITY_NAME] } }, project='uuid', tag='groups').append(orm.Node, project='uuid', with_group='groups') # This part is _only_ for the progress bar total_node_uuids_for_groups = group_uuids_with_node_uuids.count() if total_node_uuids_for_groups: progress_bar = get_progress_bar(total=total_node_uuids_for_groups, disable=silent) progress_bar.set_description_str('Exporting Groups ...', refresh=False) for group_uuid, node_uuid in group_uuids_with_node_uuids.iterall(): progress_bar.update() groups_uuid[group_uuid].append(node_uuid) ####################################### # Final check for unsealed ProcessNodes ####################################### process_nodes = set() for node_pk, content in export_data.get(NODE_ENTITY_NAME, {}).items(): if content['node_type'].startswith('process.'): process_nodes.add(node_pk) check_process_nodes_sealed(process_nodes) ###################################### # Now collecting and storing ###################################### # subfolder inside the export package nodesubfolder = folder.get_subfolder(NODES_EXPORT_SUBFOLDER, create=True, reset_limit=True) EXPORT_LOGGER.debug('ADDING DATA TO EXPORT ARCHIVE...') data = { 'node_attributes': node_attributes, 'node_extras': node_extras, 'export_data': export_data, 'links_uuid': links_uuid, 'groups_uuid': groups_uuid } # N.B. We're really calling zipfolder.open (if exporting a zipfile) with folder.open('data.json', mode='w') as fhandle: # fhandle.write(json.dumps(data, cls=UUIDEncoder)) fhandle.write(json.dumps(data)) # Turn sets into lists to be able to export them as JSON metadata. for entity, entity_set in entities_starting_set.items(): entities_starting_set[entity] = list(entity_set) metadata = { 'aiida_version': get_version(), 'export_version': EXPORT_VERSION, 'all_fields_info': all_fields_info, 'unique_identifiers': unique_identifiers, 'export_parameters': { 'graph_traversal_rules': graph_traversal_rules, 'entities_starting_set': entities_starting_set, 'include_comments': include_comments, 'include_logs': include_logs } } with folder.open('metadata.json', 'w') as fhandle: fhandle.write(json.dumps(metadata)) EXPORT_LOGGER.debug('ADDING REPOSITORY FILES TO EXPORT ARCHIVE...') # If there are no nodes, there are no repository files to store if all_node_pks: all_node_uuids = {node_pk_2_uuid_mapping[_] for _ in all_node_pks} progress_bar = get_progress_bar(total=len(all_node_uuids), disable=silent) pbar_base_str = 'Exporting repository - ' for uuid in all_node_uuids: sharded_uuid = export_shard_uuid(uuid) progress_bar.set_description_str( pbar_base_str + 'UUID={}'.format(uuid.split('-')[0]), refresh=False) progress_bar.update() # Important to set create=False, otherwise creates twice a subfolder. Maybe this is a bug of insert_path? thisnodefolder = nodesubfolder.get_subfolder(sharded_uuid, create=False, reset_limit=True) # Make sure the node's repository folder was not deleted src = RepositoryFolder(section=Repository._section_name, uuid=uuid) # pylint: disable=protected-access if not src.exists(): raise exceptions.ArchiveExportError( 'Unable to find the repository folder for Node with UUID={} in the local repository' .format(uuid)) # In this way, I copy the content of the folder, and not the folder itself thisnodefolder.insert_path(src=src.abspath, dest_name='.') close_progress_bar(leave=False) # Reset logging level if silent: logging.disable(level=logging.NOTSET)
def export_tree( entities: Optional[Iterable[Any]] = None, folder: Optional[Union[Folder, ZipFolder]] = None, allowed_licenses: Optional[Union[list, Callable]] = None, forbidden_licenses: Optional[Union[list, Callable]] = None, silent: bool = False, include_comments: bool = True, include_logs: bool = True, **traversal_rules: bool, ) -> None: """Export the entries passed in the 'entities' list to a file tree. .. deprecated:: 1.2.1 Support for the parameter `what` will be removed in `v2.0.0`. Please use `entities` instead. :param entities: a list of entity instances; they can belong to different models/entities. :param folder: a temporary folder to build the archive before compression. :param allowed_licenses: List or function. If a list, then checks whether all licenses of Data nodes are in the list. If a function, then calls function for licenses of Data nodes, expecting True if license is allowed, False otherwise. :param forbidden_licenses: List or function. If a list, then checks whether all licenses of Data nodes are in the list. If a function, then calls function for licenses of Data nodes, expecting True if license is allowed, False otherwise. :param silent: suppress console prints and progress bar. :param include_comments: In-/exclude export of comments for given node(s) in ``entities``. Default: True, *include* comments in export (as well as relevant users). :param include_logs: In-/exclude export of logs for given node(s) in ``entities``. Default: True, *include* logs in export. :param traversal_rules: graph traversal rules. See :const:`aiida.common.links.GraphTraversalRules` what rule names are toggleable and what the defaults are. :raises `~aiida.tools.importexport.common.exceptions.ArchiveExportError`: if there are any internal errors when exporting. :raises `~aiida.common.exceptions.LicensingException`: if any node is licensed under forbidden license. """ if silent: logging.disable(level=logging.CRITICAL) EXPORT_LOGGER.debug("STARTING EXPORT...") # Backwards-compatibility entities = cast( Iterable[Any], deprecated_parameters( old={ "name": "what", "value": traversal_rules.pop("what", None) }, new={ "name": "entities", "value": entities }, ), ) type_check( entities, (list, tuple, set), msg= "`entities` must be specified and given as a list of AiiDA entities", ) entities = list(entities) type_check( folder, (Folder, ZipFolder), msg="`folder` must be specified and given as an AiiDA Folder entity", ) folder = cast(Union[Folder, ZipFolder], folder) all_fields_info, unique_identifiers = get_all_fields_info() entities_starting_set, given_node_entry_ids = get_starting_node_ids( entities, silent) ( node_ids_to_be_exported, node_pk_2_uuid_mapping, links_uuid, traversal_rules, ) = collect_export_nodes(given_node_entry_ids, silent, **traversal_rules) check_node_licenses(node_ids_to_be_exported, allowed_licenses, forbidden_licenses) entries_queries = get_entry_queries( node_ids_to_be_exported, entities_starting_set, node_pk_2_uuid_mapping, silent, include_comments, include_logs, ) export_data = get_export_data(entries_queries, silent) # Close progress up until this point in order to print properly close_progress_bar(leave=False) # note this was originally below the attributes and group_uuid gather check_process_nodes_sealed({ node_pk for node_pk, content in export_data.get(NODE_ENTITY_NAME, {}).items() if content["node_type"].startswith("process.") }) model_data = sum(len(model_data) for model_data in export_data.values()) if not model_data: EXPORT_LOGGER.log(msg="Nothing to store, exiting...", level=LOG_LEVEL_REPORT) return EXPORT_LOGGER.log( msg=(f"Exporting a total of {model_data} database entries, " f"of which {len(node_ids_to_be_exported)} are Nodes."), level=LOG_LEVEL_REPORT, ) node_attributes, node_extras = get_node_data(export_data, node_ids_to_be_exported, silent) groups_uuid = get_groups_uuid(export_data, silent) # Turn sets into lists to be able to export them as JSON metadata. for entity, entity_set in entities_starting_set.items(): entities_starting_set[entity] = list(entity_set) # type: ignore metadata = { "aiida_version": get_version(), "export_version": EXPORT_VERSION, "all_fields_info": all_fields_info, "unique_identifiers": unique_identifiers, "export_parameters": { "graph_traversal_rules": traversal_rules, "entities_starting_set": entities_starting_set, "include_comments": include_comments, "include_logs": include_logs, }, } all_node_uuids = { node_pk_2_uuid_mapping[_] for _ in node_ids_to_be_exported } write_to_archive( folder, metadata, all_node_uuids, export_data, node_attributes, node_extras, groups_uuid, links_uuid, silent, ) close_progress_bar(leave=False) # Reset logging level if silent: logging.disable(level=logging.NOTSET)
def import_data_dj(in_path, group=None, ignore_unknown_nodes=False, extras_mode_existing='kcl', extras_mode_new='import', comment_mode='newest', silent=False, **kwargs): """Import exported AiiDA archive to the AiiDA database and repository. Specific for the Django backend. If ``in_path`` is a folder, calls extract_tree; otherwise, tries to detect the compression format (zip, tar.gz, tar.bz2, ...) and calls the correct function. :param in_path: the path to a file or folder that can be imported in AiiDA. :type in_path: str :param group: Group wherein all imported Nodes will be placed. :type group: :py:class:`~aiida.orm.groups.Group` :param extras_mode_existing: 3 letter code that will identify what to do with the extras import. The first letter acts on extras that are present in the original node and not present in the imported node. Can be either: 'k' (keep it) or 'n' (do not keep it). The second letter acts on the imported extras that are not present in the original node. Can be either: 'c' (create it) or 'n' (do not create it). The third letter defines what to do in case of a name collision. Can be either: 'l' (leave the old value), 'u' (update with a new value), 'd' (delete the extra), or 'a' (ask what to do if the content is different). :type extras_mode_existing: str :param extras_mode_new: 'import' to import extras of new nodes or 'none' to ignore them. :type extras_mode_new: str :param comment_mode: Comment import modes (when same UUIDs are found). Can be either: 'newest' (will keep the Comment with the most recent modification time (mtime)) or 'overwrite' (will overwrite existing Comments with the ones from the import file). :type comment_mode: str :param silent: suppress progress bar and summary. :type silent: bool :return: New and existing Nodes and Links. :rtype: dict :raises `~aiida.tools.importexport.common.exceptions.ImportValidationError`: if parameters or the contents of `metadata.json` or `data.json` can not be validated. :raises `~aiida.tools.importexport.common.exceptions.CorruptArchive`: if the provided archive at ``in_path`` is corrupted. :raises `~aiida.tools.importexport.common.exceptions.IncompatibleArchiveVersionError`: if the provided archive's export version is not equal to the export version of AiiDA at the moment of import. :raises `~aiida.tools.importexport.common.exceptions.ArchiveImportError`: if there are any internal errors when importing. :raises `~aiida.tools.importexport.common.exceptions.ImportUniquenessError`: if a new unique entity can not be created. """ from django.db import transaction # pylint: disable=import-error,no-name-in-module from aiida.backends.djsite.db import models # This is the export version expected by this function expected_export_version = StrictVersion(EXPORT_VERSION) # The returned dictionary with new and existing nodes and links ret_dict = {} # Initial check(s) if group: if not isinstance(group, Group): raise exceptions.ImportValidationError( 'group must be a Group entity') elif not group.is_stored: group.store() if silent: logging.disable(level=logging.CRITICAL) ################ # EXTRACT DATA # ################ # The sandbox has to remain open until the end with SandboxFolder() as folder: if os.path.isdir(in_path): extract_tree(in_path, folder) else: if tarfile.is_tarfile(in_path): extract_tar(in_path, folder, silent=silent, nodes_export_subfolder=NODES_EXPORT_SUBFOLDER, **kwargs) elif zipfile.is_zipfile(in_path): extract_zip(in_path, folder, silent=silent, nodes_export_subfolder=NODES_EXPORT_SUBFOLDER, **kwargs) else: raise exceptions.ImportValidationError( 'Unable to detect the input file format, it is neither a ' 'tar file, nor a (possibly compressed) zip file.') if not folder.get_content_list(): raise exceptions.CorruptArchive( 'The provided file/folder ({}) is empty'.format(in_path)) try: with open(folder.get_abs_path('metadata.json'), 'r', encoding='utf8') as fhandle: metadata = json.load(fhandle) with open(folder.get_abs_path('data.json'), 'r', encoding='utf8') as fhandle: data = json.load(fhandle) except IOError as error: raise exceptions.CorruptArchive( 'Unable to find the file {} in the import file or folder'. format(error.filename)) ###################### # PRELIMINARY CHECKS # ###################### export_version = StrictVersion(str(metadata['export_version'])) if export_version != expected_export_version: msg = 'Export file version is {}, can import only version {}'\ .format(metadata['export_version'], expected_export_version) if export_version < expected_export_version: msg += "\nUse 'verdi export migrate' to update this export file." else: msg += '\nUpdate your AiiDA version in order to import this file.' raise exceptions.IncompatibleArchiveVersionError(msg) start_summary(in_path, comment_mode, extras_mode_new, extras_mode_existing) ########################################################################## # CREATE UUID REVERSE TABLES AND CHECK IF I HAVE ALL NODES FOR THE LINKS # ########################################################################## linked_nodes = set( chain.from_iterable( (l['input'], l['output']) for l in data['links_uuid'])) group_nodes = set(chain.from_iterable(data['groups_uuid'].values())) if NODE_ENTITY_NAME in data['export_data']: import_nodes_uuid = set( v['uuid'] for v in data['export_data'][NODE_ENTITY_NAME].values()) else: import_nodes_uuid = set() # the combined set of linked_nodes and group_nodes was obtained from looking at all the links # the set of import_nodes_uuid was received from the stuff actually referred to in export_data unknown_nodes = linked_nodes.union(group_nodes) - import_nodes_uuid if unknown_nodes and not ignore_unknown_nodes: raise exceptions.DanglingLinkError( 'The import file refers to {} nodes with unknown UUID, therefore it cannot be imported. Either first ' 'import the unknown nodes, or export also the parents when exporting. The unknown UUIDs are:\n' ''.format(len(unknown_nodes)) + '\n'.join('* {}'.format(uuid) for uuid in unknown_nodes)) ################################### # DOUBLE-CHECK MODEL DEPENDENCIES # ################################### # The entity import order. It is defined by the database model relationships. model_order = (USER_ENTITY_NAME, COMPUTER_ENTITY_NAME, NODE_ENTITY_NAME, GROUP_ENTITY_NAME, LOG_ENTITY_NAME, COMMENT_ENTITY_NAME) for import_field_name in metadata['all_fields_info']: if import_field_name not in model_order: raise exceptions.ImportValidationError( "You are trying to import an unknown model '{}'!".format( import_field_name)) for idx, model_name in enumerate(model_order): dependencies = [] for field in metadata['all_fields_info'][model_name].values(): try: dependencies.append(field['requires']) except KeyError: # (No ForeignKey) pass for dependency in dependencies: if dependency not in model_order[:idx]: raise exceptions.ArchiveImportError( 'Model {} requires {} but would be loaded first; stopping...' .format(model_name, dependency)) ################################################### # CREATE IMPORT DATA DIRECT UNIQUE_FIELD MAPPINGS # ################################################### import_unique_ids_mappings = {} for model_name, import_data in data['export_data'].items(): if model_name in metadata['unique_identifiers']: # I have to reconvert the pk to integer import_unique_ids_mappings[model_name] = { int(k): v[metadata['unique_identifiers'][model_name]] for k, v in import_data.items() } ############### # IMPORT DATA # ############### # DO ALL WITH A TRANSACTION # !!! EXCEPT: Creating final import Group containing all Nodes in archive # batch size for bulk create operations batch_size = get_config_option('db.batch_size') with transaction.atomic(): foreign_ids_reverse_mappings = {} new_entries = {} existing_entries = {} IMPORT_LOGGER.debug('GENERATING LIST OF DATA...') # Instantiate progress bar progress_bar = get_progress_bar(total=1, leave=False, disable=silent) pbar_base_str = 'Generating list of data - ' # Get total entities from data.json # To be used with progress bar number_of_entities = 0 # I first generate the list of data for model_name in model_order: cls_signature = entity_names_to_signatures[model_name] model = get_object_from_string(cls_signature) fields_info = metadata['all_fields_info'].get(model_name, {}) unique_identifier = metadata['unique_identifiers'].get( model_name, None) new_entries[model_name] = {} existing_entries[model_name] = {} foreign_ids_reverse_mappings[model_name] = {} # Not necessarily all models are exported if model_name in data['export_data']: IMPORT_LOGGER.debug(' %s...', model_name) progress_bar.set_description_str(pbar_base_str + model_name, refresh=False) number_of_entities += len(data['export_data'][model_name]) # skip nodes that are already present in the DB if unique_identifier is not None: import_unique_ids = set( v[unique_identifier] for v in data['export_data'][model_name].values()) relevant_db_entries = {} if import_unique_ids: relevant_db_entries_result = model.objects.filter( **{ '{}__in'.format(unique_identifier): import_unique_ids }) # Note: UUIDs need to be converted to strings if relevant_db_entries_result.count(): progress_bar = get_progress_bar( total=relevant_db_entries_result.count(), disable=silent) # Imitating QueryBuilder.iterall() with default settings for object_ in relevant_db_entries_result.iterator( chunk_size=100): progress_bar.update() relevant_db_entries.update({ str(getattr(object_, unique_identifier)): object_ }) foreign_ids_reverse_mappings[model_name] = { k: v.pk for k, v in relevant_db_entries.items() } IMPORT_LOGGER.debug(' GOING THROUGH ARCHIVE...') imported_comp_names = set() for key, value in data['export_data'][ model_name].items(): if model_name == GROUP_ENTITY_NAME: # Check if there is already a group with the same name dupl_counter = 0 orig_label = value['label'] while model.objects.filter( label=value['label']): value[ 'label'] = orig_label + DUPL_SUFFIX.format( dupl_counter) dupl_counter += 1 if dupl_counter == 100: raise exceptions.ImportUniquenessError( 'A group of that label ( {} ) already exists and I could not create a new ' 'one'.format(orig_label)) elif model_name == COMPUTER_ENTITY_NAME: # Check if there is already a computer with the same name in the database dupl = ( model.objects.filter(name=value['name']) or value['name'] in imported_comp_names) orig_name = value['name'] dupl_counter = 0 while dupl: # Rename the new computer value[ 'name'] = orig_name + DUPL_SUFFIX.format( dupl_counter) dupl = (model.objects.filter( name=value['name']) or value['name'] in imported_comp_names) dupl_counter += 1 if dupl_counter == 100: raise exceptions.ImportUniquenessError( 'A computer of that name ( {} ) already exists and I could not create a ' 'new one'.format(orig_name)) imported_comp_names.add(value['name']) if value[unique_identifier] in relevant_db_entries: # Already in DB existing_entries[model_name][key] = value else: # To be added new_entries[model_name][key] = value else: new_entries[model_name] = data['export_data'][ model_name] # Reset for import progress_bar = get_progress_bar(total=number_of_entities, disable=silent) # I import data from the given model for model_name in model_order: # Progress bar initialization - Model pbar_base_str = '{}s - '.format(model_name) progress_bar.set_description_str(pbar_base_str + 'Initializing', refresh=True) cls_signature = entity_names_to_signatures[model_name] model = get_object_from_string(cls_signature) fields_info = metadata['all_fields_info'].get(model_name, {}) unique_identifier = metadata['unique_identifiers'].get( model_name, None) # EXISTING ENTRIES if existing_entries[model_name]: # Progress bar update - Model progress_bar.set_description_str( pbar_base_str + '{} existing entries'.format( len(existing_entries[model_name])), refresh=True) for import_entry_pk, entry_data in existing_entries[ model_name].items(): unique_id = entry_data[unique_identifier] existing_entry_id = foreign_ids_reverse_mappings[ model_name][unique_id] import_data = dict( deserialize_field(k, v, fields_info=fields_info, import_unique_ids_mappings= import_unique_ids_mappings, foreign_ids_reverse_mappings= foreign_ids_reverse_mappings) for k, v in entry_data.items()) # TODO COMPARE, AND COMPARE ATTRIBUTES if model is models.DbComment: new_entry_uuid = merge_comment(import_data, comment_mode) if new_entry_uuid is not None: entry_data[unique_identifier] = new_entry_uuid new_entries[model_name][ import_entry_pk] = entry_data if model_name not in ret_dict: ret_dict[model_name] = {'new': [], 'existing': []} ret_dict[model_name]['existing'].append( (import_entry_pk, existing_entry_id)) IMPORT_LOGGER.debug('Existing %s: %s (%s->%s)', model_name, unique_id, import_entry_pk, existing_entry_id) # print(' `-> WARNING: NO DUPLICITY CHECK DONE!') # CHECK ALSO FILES! # Store all objects for this model in a list, and store them all in once at the end. objects_to_create = [] # This is needed later to associate the import entry with the new pk import_new_entry_pks = {} # NEW ENTRIES if new_entries[model_name]: # Progress bar update - Model progress_bar.set_description_str( pbar_base_str + '{} new entries'.format(len(new_entries[model_name])), refresh=True) for import_entry_pk, entry_data in new_entries[ model_name].items(): unique_id = entry_data[unique_identifier] import_data = dict( deserialize_field(k, v, fields_info=fields_info, import_unique_ids_mappings= import_unique_ids_mappings, foreign_ids_reverse_mappings= foreign_ids_reverse_mappings) for k, v in entry_data.items()) objects_to_create.append(model(**import_data)) import_new_entry_pks[unique_id] = import_entry_pk if model_name == NODE_ENTITY_NAME: IMPORT_LOGGER.debug('STORING NEW NODE REPOSITORY FILES...') # NEW NODES for object_ in objects_to_create: import_entry_uuid = object_.uuid import_entry_pk = import_new_entry_pks[ import_entry_uuid] # Progress bar initialization - Node progress_bar.update() pbar_node_base_str = pbar_base_str + 'UUID={} - '.format( import_entry_uuid.split('-')[0]) # Before storing entries in the DB, I store the files (if these are nodes). # Note: only for new entries! subfolder = folder.get_subfolder( os.path.join(NODES_EXPORT_SUBFOLDER, export_shard_uuid(import_entry_uuid))) if not subfolder.exists(): raise exceptions.CorruptArchive( 'Unable to find the repository folder for Node with UUID={} in the exported ' 'file'.format(import_entry_uuid)) destdir = RepositoryFolder( section=Repository._section_name, uuid=import_entry_uuid) # Replace the folder, possibly destroying existing previous folders, and move the files # (faster if we are on the same filesystem, and in any case the source is a SandboxFolder) progress_bar.set_description_str(pbar_node_base_str + 'Repository', refresh=True) destdir.replace_with_folder(subfolder.abspath, move=True, overwrite=True) # For DbNodes, we also have to store its attributes IMPORT_LOGGER.debug('STORING NEW NODE ATTRIBUTES...') progress_bar.set_description_str(pbar_node_base_str + 'Attributes', refresh=True) # Get attributes from import file try: object_.attributes = data['node_attributes'][str( import_entry_pk)] except KeyError: raise exceptions.CorruptArchive( 'Unable to find attribute info for Node with UUID={}' .format(import_entry_uuid)) # For DbNodes, we also have to store its extras if extras_mode_new == 'import': IMPORT_LOGGER.debug('STORING NEW NODE EXTRAS...') progress_bar.set_description_str( pbar_node_base_str + 'Extras', refresh=True) # Get extras from import file try: extras = data['node_extras'][str( import_entry_pk)] except KeyError: raise exceptions.CorruptArchive( 'Unable to find extra info for Node with UUID={}' .format(import_entry_uuid)) # TODO: remove when aiida extras will be moved somewhere else # from here extras = { key: value for key, value in extras.items() if not key.startswith('_aiida_') } if object_.node_type.endswith('code.Code.'): extras = { key: value for key, value in extras.items() if not key == 'hidden' } # till here object_.extras = extras elif extras_mode_new == 'none': IMPORT_LOGGER.debug('SKIPPING NEW NODE EXTRAS...') else: raise exceptions.ImportValidationError( "Unknown extras_mode_new value: {}, should be either 'import' or 'none'" ''.format(extras_mode_new)) # EXISTING NODES (Extras) # For the existing nodes that are also in the imported list we also update their extras if necessary IMPORT_LOGGER.debug('UPDATING EXISTING NODE EXTRAS...') import_existing_entry_pks = { entry_data[unique_identifier]: import_entry_pk for import_entry_pk, entry_data in existing_entries[model_name].items() } for node in models.DbNode.objects.filter( uuid__in=import_existing_entry_pks).all(): # pylint: disable=no-member import_entry_uuid = str(node.uuid) import_entry_pk = import_existing_entry_pks[ import_entry_uuid] # Progress bar initialization - Node pbar_node_base_str = pbar_base_str + 'UUID={} - '.format( import_entry_uuid.split('-')[0]) progress_bar.set_description_str(pbar_node_base_str + 'Extras', refresh=False) progress_bar.update() # Get extras from import file try: extras = data['node_extras'][str(import_entry_pk)] except KeyError: raise exceptions.CorruptArchive( 'Unable to find extra info for Node with UUID={}' .format(import_entry_uuid)) old_extras = node.extras.copy() # TODO: remove when aiida extras will be moved somewhere else # from here extras = { key: value for key, value in extras.items() if not key.startswith('_aiida_') } if node.node_type.endswith('code.Code.'): extras = { key: value for key, value in extras.items() if not key == 'hidden' } # till here new_extras = merge_extras(node.extras, extras, extras_mode_existing) if new_extras != old_extras: # Already saving existing node here to update its extras node.extras = new_extras node.save() else: # Update progress bar with new non-Node entries progress_bar.update(n=len(existing_entries[model_name]) + len(new_entries[model_name])) progress_bar.set_description_str(pbar_base_str + 'Storing', refresh=True) # If there is an mtime in the field, disable the automatic update # to keep the mtime that we have set here if 'mtime' in [ field.name for field in model._meta.local_fields ]: with models.suppress_auto_now([(model, ['mtime'])]): # Store them all in once; however, the PK are not set in this way... model.objects.bulk_create(objects_to_create, batch_size=batch_size) else: model.objects.bulk_create(objects_to_create, batch_size=batch_size) # Get back the just-saved entries just_saved_queryset = model.objects.filter( **{ '{}__in'.format(unique_identifier): import_new_entry_pks.keys() }).values_list(unique_identifier, 'pk') # note: convert uuids from type UUID to strings just_saved = { str(key): value for key, value in just_saved_queryset } # Now I have the PKs, print the info # Moreover, add newly created Nodes to foreign_ids_reverse_mappings for unique_id, new_pk in just_saved.items(): import_entry_pk = import_new_entry_pks[unique_id] foreign_ids_reverse_mappings[model_name][ unique_id] = new_pk if model_name not in ret_dict: ret_dict[model_name] = {'new': [], 'existing': []} ret_dict[model_name]['new'].append( (import_entry_pk, new_pk)) IMPORT_LOGGER.debug( 'New %s: %s (%s->%s)' % (model_name, unique_id, import_entry_pk, new_pk)) IMPORT_LOGGER.debug('STORING NODE LINKS...') import_links = data['links_uuid'] links_to_store = [] # Needed, since QueryBuilder does not yet work for recently saved Nodes existing_links_raw = models.DbLink.objects.all().values_list( 'input', 'output', 'label', 'type') existing_links = {(l[0], l[1], l[2], l[3]) for l in existing_links_raw} existing_outgoing_unique = {(l[0], l[3]) for l in existing_links_raw} existing_outgoing_unique_pair = {(l[0], l[2], l[3]) for l in existing_links_raw} existing_incoming_unique = {(l[1], l[3]) for l in existing_links_raw} existing_incoming_unique_pair = {(l[1], l[2], l[3]) for l in existing_links_raw} calculation_node_types = 'process.calculation.' workflow_node_types = 'process.workflow.' data_node_types = 'data.' link_mapping = { LinkType.CALL_CALC: (workflow_node_types, calculation_node_types, 'unique_triple', 'unique'), LinkType.CALL_WORK: (workflow_node_types, workflow_node_types, 'unique_triple', 'unique'), LinkType.CREATE: (calculation_node_types, data_node_types, 'unique_pair', 'unique'), LinkType.INPUT_CALC: (data_node_types, calculation_node_types, 'unique_triple', 'unique_pair'), LinkType.INPUT_WORK: (data_node_types, workflow_node_types, 'unique_triple', 'unique_pair'), LinkType.RETURN: (workflow_node_types, data_node_types, 'unique_pair', 'unique_triple'), } if import_links: progress_bar = get_progress_bar(total=len(import_links), disable=silent) pbar_base_str = 'Links - ' for link in import_links: # Check for dangling Links within the, supposed, self-consistent archive progress_bar.set_description_str( pbar_base_str + 'label={}'.format(link['label']), refresh=False) progress_bar.update() try: in_id = foreign_ids_reverse_mappings[NODE_ENTITY_NAME][ link['input']] out_id = foreign_ids_reverse_mappings[NODE_ENTITY_NAME][ link['output']] except KeyError: if ignore_unknown_nodes: continue raise exceptions.ImportValidationError( 'Trying to create a link with one or both unknown nodes, stopping (in_uuid={}, out_uuid={}, ' 'label={}, type={})'.format(link['input'], link['output'], link['label'], link['type'])) # Check if link already exists, skip if it does # This is equivalent to an existing triple link (i.e. unique_triple from below) if (in_id, out_id, link['label'], link['type']) in existing_links: continue # Since backend specific Links (DbLink) are not validated upon creation, we will now validate them. try: validate_link_label(link['label']) except ValueError as why: raise exceptions.ImportValidationError( 'Error during Link label validation: {}'.format(why)) source = models.DbNode.objects.get(id=in_id) target = models.DbNode.objects.get(id=out_id) if source.uuid == target.uuid: raise exceptions.ImportValidationError( 'Cannot add a link to oneself') link_type = LinkType(link['type']) type_source, type_target, outdegree, indegree = link_mapping[ link_type] # Check if source Node is a valid type if not source.node_type.startswith(type_source): raise exceptions.ImportValidationError( 'Cannot add a {} link from {} to {}'.format( link_type, source.node_type, target.node_type)) # Check if target Node is a valid type if not target.node_type.startswith(type_target): raise exceptions.ImportValidationError( 'Cannot add a {} link from {} to {}'.format( link_type, source.node_type, target.node_type)) # If the outdegree is `unique` there cannot already be any other outgoing link of that type, # i.e., the source Node may not have a LinkType of current LinkType, going out, existing already. if outdegree == 'unique' and ( in_id, link['type']) in existing_outgoing_unique: raise exceptions.ImportValidationError( 'Node<{}> already has an outgoing {} link'.format( source.uuid, link_type)) # If the outdegree is `unique_pair`, # then the link labels for outgoing links of this type should be unique, # i.e., the source Node may not have a LinkType of current LinkType, going out, # that also has the current Link label, existing already. elif outdegree == 'unique_pair' and \ (in_id, link['label'], link['type']) in existing_outgoing_unique_pair: raise exceptions.ImportValidationError( 'Node<{}> already has an outgoing {} link with label "{}"' .format(source.uuid, link_type, link['label'])) # If the indegree is `unique` there cannot already be any other incoming links of that type, # i.e., the target Node may not have a LinkType of current LinkType, coming in, existing already. if indegree == 'unique' and ( out_id, link['type']) in existing_incoming_unique: raise exceptions.ImportValidationError( 'Node<{}> already has an incoming {} link'.format( target.uuid, link_type)) # If the indegree is `unique_pair`, # then the link labels for incoming links of this type should be unique, # i.e., the target Node may not have a LinkType of current LinkType, coming in # that also has the current Link label, existing already. elif indegree == 'unique_pair' and \ (out_id, link['label'], link['type']) in existing_incoming_unique_pair: raise exceptions.ImportValidationError( 'Node<{}> already has an incoming {} link with label "{}"' .format(target.uuid, link_type, link['label'])) # New link links_to_store.append( models.DbLink(input_id=in_id, output_id=out_id, label=link['label'], type=link['type'])) if 'Link' not in ret_dict: ret_dict['Link'] = {'new': []} ret_dict['Link']['new'].append((in_id, out_id)) # Add new Link to sets of existing Links 'input PK', 'output PK', 'label', 'type' existing_links.add( (in_id, out_id, link['label'], link['type'])) existing_outgoing_unique.add((in_id, link['type'])) existing_outgoing_unique_pair.add( (in_id, link['label'], link['type'])) existing_incoming_unique.add((out_id, link['type'])) existing_incoming_unique_pair.add( (out_id, link['label'], link['type'])) # Store new links if links_to_store: IMPORT_LOGGER.debug(' (%d new links...)', len(links_to_store)) models.DbLink.objects.bulk_create(links_to_store, batch_size=batch_size) else: IMPORT_LOGGER.debug(' (0 new links...)') IMPORT_LOGGER.debug('STORING GROUP ELEMENTS...') import_groups = data['groups_uuid'] if import_groups: progress_bar = get_progress_bar(total=len(import_groups), disable=silent) pbar_base_str = 'Groups - ' for groupuuid, groupnodes in import_groups.items(): # TODO: cache these to avoid too many queries group_ = models.DbGroup.objects.get(uuid=groupuuid) progress_bar.set_description_str( pbar_base_str + 'label={}'.format(group_.label), refresh=False) progress_bar.update() nodes_to_store = [ foreign_ids_reverse_mappings[NODE_ENTITY_NAME][node_uuid] for node_uuid in groupnodes ] if nodes_to_store: group_.dbnodes.add(*nodes_to_store) ###################################################### # Put everything in a specific group ###################################################### existing = existing_entries.get(NODE_ENTITY_NAME, {}) existing_pk = [ foreign_ids_reverse_mappings[NODE_ENTITY_NAME][v['uuid']] for v in existing.values() ] new = new_entries.get(NODE_ENTITY_NAME, {}) new_pk = [ foreign_ids_reverse_mappings[NODE_ENTITY_NAME][v['uuid']] for v in new.values() ] pks_for_group = existing_pk + new_pk # So that we do not create empty groups if pks_for_group: # If user specified a group, import all things into it if not group: # Get an unique name for the import group, based on the current (local) time basename = timezone.localtime( timezone.now()).strftime('%Y%m%d-%H%M%S') counter = 0 group_label = basename while Group.objects.find(filters={'label': group_label}): counter += 1 group_label = '{}_{}'.format(basename, counter) if counter == 100: raise exceptions.ImportUniquenessError( "Overflow of import groups (more than 100 import groups exists with basename '{}')" ''.format(basename)) group = ImportGroup(label=group_label).store() # Add all the nodes to the new group builder = QueryBuilder().append( Node, filters={'id': { 'in': pks_for_group }}) progress_bar = get_progress_bar(total=len(pks_for_group), disable=silent) progress_bar.set_description_str( 'Creating import Group - Preprocessing', refresh=True) first = True nodes = [] for entry in builder.iterall(): if first: progress_bar.set_description_str('Creating import Group', refresh=False) first = False progress_bar.update() nodes.append(entry[0]) group.add_nodes(nodes) progress_bar.set_description_str('Done (cleaning up)', refresh=True) else: IMPORT_LOGGER.debug( 'No Nodes to import, so no Group created, if it did not already exist' ) # Finalize Progress bar close_progress_bar(leave=False) # Summarize import result_summary(ret_dict, getattr(group, 'label', None)) # Reset logging level if silent: logging.disable(level=logging.NOTSET) return ret_dict