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retention.py
import acrobind import acrort import inspect import os import sys import logging def get_log_file(): return "" def configure_logging(): log_file = get_log_file() if log_file == "": return logger = logging.getLogger() file_log_handler = logging.FileHandler(log_file) logger.addHandler(file_log_handler) def get_retention_specs(is_cloud): file_name = inspect.getframeinfo(inspect.currentframe()).filename dir_here = os.path.dirname(file_name) sys.path.insert(0, dir_here) if is_cloud: from retention_specs import RETENTION_SPECS_CLOUD return RETENTION_SPECS_CLOUD else: from retention_specs import RETENTION_SPECS_ONPREM return RETENTION_SPECS_ONPREM def get_objects_count(pattern, dml): options = [('.Counter.CounterObjectTemplate.ID', 'guid', '936A68BE-4EE6-4AEB-B67F-1C2191CC9EAD'), ('.Counter.CounterObjectTemplate.ID^PrimaryKey', 'nil', None)] count_result = dml.select1(acrort.dml.ViewSpec(pattern=acrort.plain.Unit(flat=pattern), options=acrort.plain.Unit(flat=options))) return count_result.CounterValue.ref def fetch_value_by_name(obj, property_name): for field in obj: current_name = field[0] if current_name == property_name: property_value = field[1] return property_value return None def is_root_id(activity_id): return activity_id == '00000000-0000-0000-0000-000000000000' def add_activity(activities, activity_id, parent_activity_id): if activities.get(activity_id) is None: activities.update({activity_id: set()}) if not is_root_id(parent_activity_id): # The current activity is NOT a root, because has a parent if activities.get(parent_activity_id) is None: # The parent is not exist yet, lets create parent and add current activity as its child activities.update({parent_activity_id: {activity_id}}) else: # The parent is exist already, lets add current activity as its child activities[parent_activity_id].add(activity_id) def get_roots(activities): result = set() keys = activities.keys() for activity_id in keys: children = activities[activity_id] if len(children) == 0: result.add(activity_id) return result def collect_children(activities, activity_id): children = activities.get(activity_id) if children is None or len(children) == 0: return set() result = children.copy() for child in children: if child not in activities: result.remove(child) else: tt = collect_children(activities, child) result.update(tt) return result def traverse(activities, root_id, on_node): children = activities.get(root_id) if children is None or len(children) == 0: on_node(root_id, 0) return on_node(root_id, 1) for child in children.copy(): traverse(activities, child, on_node) def clean_roots_and_tree(roots, activity_tree, root_id, sub_tree): for activity_id in sub_tree: if activity_id == root_id: roots.remove(root_id) if activity_id in activity_tree: activity_tree.pop(activity_id,None) else: logging.getLogger().warning("activity_id {0} does not exists in activity_tree".format(activity_id)) def get_activities_specs(spec): if spec["historical_order"] is True: options = [('.SortingOptions.DmlTimeStamp', 'sqword', 0), ('.SortingOptions.DmlTimeStamp^Ascending', 'nil', None)] activity_spec = acrort.dml.ViewSpec(pattern=acrort.plain.Unit(flat=spec["pattern"]), options=acrort.plain.Unit(flat=options)) return activity_spec def get_activities(connection, activity_spec): activity_tree = dict() roots = set() activities = connection.dml.select(activity_spec) for activity in activities: activity_id = fetch_value_by_name(activity, 'ID') if activity_id is None: continue get_activity_from_Root(activity_id, activity, activity_tree, roots) get_activity_from_ParentProtectActivityID(activity_id, activity, activity_tree, roots) return roots, activity_tree def get_activity_from_ParentProtectActivityID(activity_id, activity, activity_tree, roots): environment_value = fetch_value_by_name(activity, 'Environment') if environment_value is None: return parent_activity_id = fetch_value_by_name(environment_value, 'ParentProtectActivityID') if parent_activity_id is None: return activity_id = str(activity_id.ref) parent_activity_id = str(parent_activity_id.ref) add_activity(activity_tree, activity_id, parent_activity_id) roots.add(parent_activity_id) def get_activity_from_Root(activity_id, activity, activity_tree, roots): property_value = fetch_value_by_name(activity, 'Origin') if property_value is None: return parent_activity_id = fetch_value_by_name(property_value, 'ParentActivity') if parent_activity_id is None: return activity_id = str(activity_id.ref) parent_activity_id = str(parent_activity_id.ref) add_activity(activity_tree, activity_id, parent_activity_id) if is_root_id(parent_activity_id): roots.add(activity_id) def delete_activities(connection, activity_spec): deleted_objects = 0 roots, activity_tree = get_activities(connection, activity_spec) for root_id in roots.copy(): if root_id not in activity_tree: continue sub_tree = collect_children(activity_tree, root_id) sub_tree.add(root_id) deleted_activities = set() if delete_activities_from_dml(connection, sub_tree): deleted_activities = sub_tree else: # One or more activities could not be deleted. # Try to delete activities one by one, traversing from the root to leaves. def delete_and_collect_activity(activity_id, kind): # token = "on_leaf" if kind == 0 else "on_node" # logging.getLogger().warning("{0}({1})".format(token, activity_id)) if delete_activity_from_dml(connection, activity_id): deleted_activities.add(activity_id) traverse(activity_tree, root_id, delete_and_collect_activity) clean_roots_and_tree(roots, activity_tree, root_id, deleted_activities) deleted_objects += len(deleted_activities) if len(activity_tree.keys()) > 0: logging.getLogger().warning("Warning. Following activities are still retained {}".format(activity_tree.keys())) return deleted_objects def run_logic(connection, retention_specs): deleted_objects = 0 # spec_index = 1 for spec in retention_specs: # logging.getLogger().warning("spec{0}={1}".format(spec_index, spec)) # spec_index += 1 objects_limit = spec.get("objects_count_limit") objects_count = get_objects_count(spec["pattern"], connection.dml) need_to_delete = objects_count > objects_limit if need_to_delete: activity_spec = get_activities_specs(spec) deleted_objects = delete_activities(connection, activity_spec) # logging.getLogger().warning("deleted_objects {}".format(deleted_objects)) return deleted_objects def delete_activity_from_dml(connection, activity_id): try: tt = acrobind.create_viewspec_by_is_and_guid_property('Tol::History::Plain::Activity', '.ID', activity_id) connection.dml.delete(pattern=tt.pattern) except: logging.getLogger().warning("delete_activity_from_dml: Failed to delete activity {}".format(activity_id)) return False return True def delete_activities_from_dml(connection, activities): try: spec = acrobind.create_viewspec_by_is('Tol::History::Plain::Activity') spec = acrobind.viewspec_apply_ids(spec, activities) connection.dml.delete(pattern=spec.pattern) except: logging.getLogger().warning("delete_activities_from_dml: Failed to delete activities {}".format(activities)) return False return True def execute_retention(is_cloud, *args, **kw): context = acrort.remoting.CommandContext(*args, **kw) deleted_objects = run_logic(context.connection, get_retention_specs(is_cloud)) result = [('.DeletedObjectsCount', 'dword', deleted_objects)] return acrort.plain.Unit(flat=result) def execute_retention_cloud(*args, **kw): configure_logging() return execute_retention(True, *args, **kw) def execute_retention_onprem(*args, **kw): configure_logging() return execute_retention(False, *args, **kw)
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