class ChangePlanValidator:
def __init__(self):
self.instance_table = InstanceTable()
self.model_table = ModelTable()
self.rack_table = RackTable()
self.user_table = UserTable()
self.dc_table = DatacenterTable()
self.cp_table = ChangePlanTable()
self.cp_action_table = ChangePlanActionTable()
self.instance_manager = InstanceManager()
self.rack_height = 42
self.cp_asset_set = set()
self.decom_asset_set = set()
self.no_pow_conflict = False
def validate_action(self, cp_action, all_cp_actions):
self.cp_asset_set = set()
self.decom_asset_set = set()
self.no_pow_conflict = False
cp_validation_result = self._validate_change_plan(
cp_action.change_plan_id)
if cp_validation_result != Constants.API_SUCCESS:
return cp_validation_result
if cp_action.action == Constants.CREATE_KEY:
return self._create_action_validate(cp_action, all_cp_actions)
elif cp_action.action == Constants.UPDATE_KEY:
return self._edit_action_validate(cp_action, all_cp_actions)
elif cp_action.action == Constants.DECOMMISSION_KEY:
return self._decom_action_validate(cp_action, all_cp_actions)
else:
return Constants.API_SUCCESS
def _validate_change_plan(self, cp_id: int):
change_plan = self.cp_table.get_change_plan(cp_id)
if change_plan is None:
return "Change plan actions must correspond to an existing change plan."
if change_plan.executed:
return "Cannot modify a change plan that has already been executed"
return Constants.API_SUCCESS
def _create_action_validate(self, cp_action, all_cp_actions):
instance = self.instance_manager.make_instance(cp_action.new_record)
datacenter = self.dc_table.get_datacenter(instance.datacenter_id)
if datacenter is None:
return "The datacenter does not exist. Please select a valid datacenter."
input_validation_result = self._validate_inputs(instance, datacenter)
if input_validation_result != Constants.API_SUCCESS:
return input_validation_result
model_template = self.model_table.get_model(instance.model_id)
if model_template is None:
return "The model does not exist."
if (instance.mount_type !=
Constants.BLADE_KEY) and (not datacenter.is_offline_storage):
instance_bottom = int(instance.rack_position)
instance_top = instance_bottom + int(model_template.height) - 1
if instance_top > self.rack_height:
return "The placement of the instance exceeds the height of the rack."
else:
instance_bottom = 0
instance_top = 0
new_asset_number = instance.asset_number
new_hostname = instance.hostname
pow_connections = set(instance.power_connections)
prev_action_val_result = self._validate_vs_prev_actions(
instance,
all_cp_actions,
cp_action,
new_asset_number,
new_hostname,
pow_connections,
instance_bottom,
instance_top,
datacenter,
)
if prev_action_val_result != Constants.API_SUCCESS:
return prev_action_val_result
common_val_result = self._common_validations(instance, cp_action,
instance_bottom,
instance_top, datacenter)
if common_val_result != Constants.API_SUCCESS:
return common_val_result
if (not datacenter.is_offline_storage) and (instance.mount_type !=
Constants.BLADE_KEY):
if not self.no_pow_conflict:
rack = self.rack_table.get_rack(instance.rack_label,
instance.datacenter_id)
for p_connection in instance.power_connections:
char1 = p_connection[0].upper()
num = int(p_connection[1:])
if char1 == "L":
pdu_arr = rack.pdu_left
elif char1 == "R":
pdu_arr = rack.pdu_right
else:
return "Invalid power connection. Please specify left or right PDU."
if pdu_arr[num - 1] == 1:
return f"There is already an asset connected at PDU {char1}{num}. Please pick an empty PDU port."
connection_validation_result = self._validate_connections(
instance.network_connections,
instance.hostname,
cp_action,
all_cp_actions,
)
if connection_validation_result != Constants.API_SUCCESS:
return connection_validation_result
return Constants.API_SUCCESS
def _edit_action_validate(self, cp_action, all_cp_actions):
instance = self.instance_manager.make_instance(cp_action.new_record)
datacenter = self.dc_table.get_datacenter(instance.datacenter_id)
if datacenter is None:
return "The datacenter does not exist. Please select a valid datacenter."
input_validation_result = self._validate_inputs(instance, datacenter)
if input_validation_result != Constants.API_SUCCESS:
return input_validation_result
model_template = self.model_table.get_model(instance.model_id)
if model_template is None:
return "The model does not exist."
if (instance.mount_type !=
Constants.BLADE_KEY) and (not datacenter.is_offline_storage):
instance_bottom = int(instance.rack_position)
instance_top = instance_bottom + int(model_template.height) - 1
if instance_top > self.rack_height:
return "The placement of the instance exceeds the height of the rack."
else:
instance_bottom = 0
instance_top = 0
prev_update_in_plan = self.cp_action_table.get_newest_asset_record_in_plan(
cp_action.change_plan_id,
cp_action.original_asset_number,
999999999,
)
if (prev_update_in_plan is not None
and prev_update_in_plan.action != Constants.COLLATERAL_KEY
and prev_update_in_plan.step != cp_action.step):
return f"This asset is already being modified in step {prev_update_in_plan.step}. Please update your desired information there."
new_asset_number = instance.asset_number
new_hostname = instance.hostname
pow_connections = set(instance.power_connections)
prev_action_val_result = self._validate_vs_prev_actions(
instance,
all_cp_actions,
cp_action,
new_asset_number,
new_hostname,
pow_connections,
instance_bottom,
instance_top,
datacenter,
)
if prev_action_val_result != Constants.API_SUCCESS:
return prev_action_val_result
common_val_result = self._common_validations(instance, cp_action,
instance_bottom,
instance_top, datacenter)
if common_val_result != Constants.API_SUCCESS:
return common_val_result
if (not datacenter.is_offline_storage) and (instance.mount_type !=
Constants.BLADE_KEY):
if prev_update_in_plan is not None:
prev_connections = prev_update_in_plan.new_record.get(
Constants.NETWORK_CONNECTIONS_KEY)
else:
prev_instance = self.instance_table.get_instance_by_asset_number(
cp_action.original_asset_number)
prev_connections = prev_instance.network_connections
connection_validation_result = self._validate_connections_edit(
instance.network_connections,
instance.hostname,
cp_action,
all_cp_actions,
prev_connections,
)
if connection_validation_result != Constants.API_SUCCESS:
return connection_validation_result
return Constants.API_SUCCESS
def _decom_action_validate(self, cp_action, all_cp_actions):
asset = self.instance_table.get_instance_by_asset_number(
cp_action.original_asset_number)
if asset is None:
return f"Asset with asset number {cp_action.original_asset_number} does not exist."
prev_update_in_plan = self.cp_action_table.get_newest_asset_record_in_plan(
cp_action.change_plan_id,
cp_action.original_asset_number,
999999999,
)
if (prev_update_in_plan is not None
and prev_update_in_plan.action != Constants.COLLATERAL_KEY
and prev_update_in_plan.step != cp_action.step):
return f"This asset is already being modified in step {prev_update_in_plan.step}. Please update your desired information there."
if asset.mount_type == Constants.CHASIS_KEY:
no_conflict = set()
for a in all_cp_actions:
if a.new_record.get(
Constants.CHASSIS_HOSTNAME_KEY) == asset.hostname:
return f"A blade chassis must be empty before it can be decommissioned. A blade is placed in the chassis in step {a.step} of the change plan."
else:
no_conflict.add(a.original_asset_number)
blade_list = self.instance_table.get_blades_by_chassis_hostname(
asset.hostname)
if blade_list is not None:
for blade in blade_list:
if not blade.asset_number in no_conflict:
return f"A blade chassis must be empty before it can be decommissioned. Blade with asset number {blade.asset_number} is in the chassis."
return Constants.API_SUCCESS
def _validate_inputs(self, instance, datacenter):
if (not datacenter.is_offline_storage) and (instance.mount_type !=
Constants.BLADE_KEY):
rack = self.rack_table.get_rack(instance.rack_label,
instance.datacenter_id)
if rack is None:
return f"Rack {instance.rack_label} does not exist in datacenter {datacenter.name}. Assets must be created on preexisting racks"
rack_u_pattern = re.compile("[0-9]+")
if rack_u_pattern.fullmatch(str(instance.rack_position)) is None:
return "The value for Rack U must be a positive integer."
asset_pattern = re.compile("[0-9]{6}")
if asset_pattern.fullmatch(str(instance.asset_number)) is None:
return "Asset numbers must be 6 digits long and only contain numbers."
if instance.hostname is not None and instance.hostname != "":
if len(instance.hostname) > 64:
return "Hostnames must be 64 characters or less"
host_pattern = re.compile("[a-zA-Z]*[A-Za-z0-9-]*[A-Za-z0-9]")
if host_pattern.fullmatch(instance.hostname) is None:
return "Hostnames must start with a letter, only contain letters, numbers, periods, and hyphens, and end with a letter or number."
if instance.owner != "" and self.user_table.get_user(
instance.owner) is None:
return f"The owner {instance.owner} is not an existing user. Please enter the username of an existing user."
return Constants.API_SUCCESS
def _validate_vs_prev_actions(
self,
instance,
all_cp_actions,
cp_action,
new_asset_number,
new_hostname,
pow_connections,
instance_bottom: int,
instance_top: int,
datacenter,
):
for prev_action in all_cp_actions:
if prev_action.step >= cp_action.step:
continue
if prev_action.action != Constants.CREATE_KEY:
self.cp_asset_set.add(prev_action.original_asset_number)
if prev_action.action == Constants.DECOMMISSION_KEY:
self.decom_asset_set.add(prev_action.original_asset_number)
# Asset Number Validation
if (prev_action.original_asset_number == new_asset_number
and prev_action.action != Constants.DECOMMISSION_KEY):
return f"Asset numbers must be unique. An asset with asset number {instance.asset_number} already exists."
if (prev_action.new_record.get(
Constants.ASSET_NUMBER_KEY) == new_asset_number
and prev_action.action == Constants.CREATE_KEY):
return f"Asset with asset number {new_asset_number} is already being created in step {prev_action.step} of the change plan."
# Hostname Validation
if new_hostname is not None and new_hostname != "":
if (prev_action.new_record.get(
Constants.HOSTNAME_KEY) == new_hostname
and prev_action.action != Constants.DECOMMISSION_KEY):
return f"Asset with hostname {new_hostname} already exists in step {prev_action.step} of the change plan."
# Location Validation
if not datacenter.is_offline_storage:
if instance.mount_type != Constants.BLADE_KEY:
if (prev_action.action == Constants.CREATE_KEY
or prev_action.action == Constants.UPDATE_KEY):
model_id = self.instance_manager.get_model_id_from_name(
prev_action.new_record.get(Constants.MODEL_KEY))
model = self.model_table.get_model(model_id)
other_bottom = int(
prev_action.new_record.get(
Constants.RACK_POSITION_KEY))
other_top = (int(
prev_action.new_record.get(
Constants.RACK_POSITION_KEY)) + model.height -
1)
if (other_bottom >= instance_bottom
and other_bottom <= instance_top):
result = f"The asset placement conflicts with asset with asset number {prev_action.new_record.get(Constants.ASSET_NUMBER_KEY)} "
result += f"edited in step {prev_action.step}."
return result
elif other_top >= instance_bottom and other_top <= instance_top:
result = f"The asset placement conflicts with asset with asset number {prev_action.new_record.get(Constants.ASSET_NUMBER_KEY)} "
result += f"edited in step {prev_action.step}."
return result
elif (instance.mount_type == Constants.BLADE_KEY
and prev_action.new_record.get(
Constants.MOUNT_TYPE_KEY) == Constants.BLADE_KEY):
if instance.chassis_hostname == prev_action.new_record.get(
Constants.CHASSIS_HOSTNAME_KEY
) and instance.chassis_slot == prev_action.new_record.get(
Constants.CHASSIS_SLOT_KEY):
return f"A blade is already being placed in chassis with hostname {instance.chassis_hostname} at position {instance.chassis_slot} in step {prev_action.step} of the change plan."
# Power Connection Validation
if (not datacenter.is_offline_storage) and (instance.mount_type !=
Constants.BLADE_KEY):
if (prev_action.action != Constants.DECOMMISSION_KEY
and prev_action.action != Constants.COLLATERAL_KEY):
prev_pow_connections = prev_action.new_record.get(
Constants.POWER_CONNECTIONS_KEY)
print(prev_action.new_record)
prev_pow_connections = set(prev_pow_connections)
pow_intersection = pow_connections.intersection(
prev_pow_connections)
if len(pow_intersection) > 0:
return f"There is already an asset connected at PDU port {pow_intersection.pop()}. Please pick an empty PDU port."
if (prev_action.action == Constants.UPDATE_KEY
or prev_action.action == Constants.DECOMMISSION_KEY):
old_pow_connections = prev_action.old_record.get(
Constants.POWER_CONNECTIONS_KEY)
if old_pow_connections is None:
self.no_pow_conflict = True
else:
old_pow_connections = set(old_pow_connections)
old_pow_intersection = pow_connections.intersection(
old_pow_connections)
if len(old_pow_intersection) > 0:
self.no_pow_conflict = True
return Constants.API_SUCCESS
def _common_validations(self, instance, cp_action, instance_bottom,
instance_top, datacenter):
if (self.instance_table.get_instance_by_asset_number(
instance.asset_number) is not None
and not instance.asset_number in self.decom_asset_set
and instance.asset_number != cp_action.original_asset_number):
return f"Asset numbers must be unique. An asset with asset number {instance.asset_number} already exists."
if instance.hostname != "" and instance.hostname is not None:
duplicate_hostname = self.instance_table.get_instance_by_hostname(
instance.hostname)
if (duplicate_hostname is not None and
not duplicate_hostname.asset_number in self.cp_asset_set
and
duplicate_hostname.asset_number != instance.asset_number):
return f"An asset with hostname {duplicate_hostname.hostname} exists at location {duplicate_hostname.rack_label} U{duplicate_hostname.rack_position}"
if not datacenter.is_offline_storage:
if instance.mount_type != Constants.BLADE_KEY:
instance_list = self.instance_table.get_instances_by_rack(
instance.rack_label, instance.datacenter_id)
if instance_list is not None:
for current_instance in instance_list:
if (current_instance.asset_number in self.cp_asset_set
or current_instance.asset_number
== cp_action.original_asset_number):
continue
model = self.model_table.get_model(instance.model_id)
current_instance_top = (
current_instance.rack_position + model.height - 1)
if (current_instance.rack_position >= instance_bottom
and current_instance.rack_position <=
instance_top):
return self.return_conflict(current_instance)
elif (current_instance_top >= instance_bottom
and current_instance_top <= instance_top):
return self.return_conflict(current_instance)
elif instance.mount_type == Constants.BLADE_KEY:
blade_conflict = self.instance_table.get_blade_by_chassis_and_slot(
instance.chassis_hostname, instance.chassis_slot)
if (blade_conflict is not None and
not blade_conflict.asset_number in self.cp_asset_set):
return f"A blade with hostname {blade_conflict.hostname} is already located in position {instance.chassis_slot} of chassis with hostname {instance.chassis_hostname}."
return Constants.API_SUCCESS
def _validate_connections(self, network_connections, hostname, cp_action,
all_cp_actions):
result = ""
new_connections = {}
for my_port in network_connections:
mac_adress = network_connections[my_port][
Constants.MAC_ADDRESS_KEY]
connection_hostname = network_connections[my_port][
"connection_hostname"]
connection_port = network_connections[my_port]["connection_port"]
if connection_hostname in new_connections.keys():
if new_connections[connection_hostname] == connection_port:
result += "Cannot make two network connections to the same port."
elif connection_hostname != "" and connection_port != "":
new_connections[connection_hostname] = connection_port
mac_pattern = re.compile(
"[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}"
)
if mac_adress != "" and mac_pattern.fullmatch(
mac_adress.lower()) is None:
result += f"Invalid MAC address for port {my_port}. MAC addresses must be 6 byte, colon separated hexidecimal strings (i.e. a1:b2:c3:d4:e5:f6). \n"
if (connection_hostname == "" or connection_hostname is None) and (
connection_port == "" or connection_port is None):
continue
if not (connection_hostname != "" and connection_port != ""):
result += "Connections require both a hostname and connection port."
other_instance = None
for prev_action in all_cp_actions:
if prev_action.step >= cp_action.step:
continue
if (prev_action.new_record[Constants.HOSTNAME_KEY] ==
connection_hostname):
other_instance = self.instance_manager.make_instance(
prev_action.new_record)
if other_instance is None:
other_instance = self.instance_table.get_instance_by_hostname(
connection_hostname)
if other_instance is None:
result += f"The asset with hostname {connection_hostname} does not exist. Connections must be between assets with existing hostnames. \n"
continue
if connection_port in other_instance.network_connections:
if (other_instance.network_connections[connection_port]
["connection_port"] != my_port) and (
other_instance.network_connections[connection_port]
["connection_port"] != ""):
result += f"The port {connection_port} on asset with hostname {connection_hostname} is connected to another asset. \n"
continue
if (other_instance.network_connections[connection_port]
["connection_hostname"] != hostname) and (
other_instance.network_connections[connection_port]
["connection_hostname"] != ""):
result += f"The port {connection_port} on asset with hostname {connection_hostname} is already connected to another asset."
if result == "":
return Constants.API_SUCCESS
else:
return result
def _validate_connections_edit(self, network_connections, hostname,
cp_action, all_cp_actions,
prev_connections):
result = ""
new_connections = {}
for my_port in network_connections:
mac_adress = network_connections[my_port][
Constants.MAC_ADDRESS_KEY]
connection_hostname = network_connections[my_port][
"connection_hostname"]
connection_port = network_connections[my_port]["connection_port"]
if connection_hostname in new_connections.keys():
if new_connections[connection_hostname] == connection_port:
result += "Cannot make two network connections to the same port."
elif connection_hostname != "" and connection_port != "":
new_connections[connection_hostname] = connection_port
mac_pattern = re.compile(
"[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}"
)
if mac_adress != "" and mac_pattern.fullmatch(
mac_adress.lower()) is None:
result += f"Invalid MAC address for port {my_port}. MAC addresses must be 6 byte, colon separated hexidecimal strings (i.e. a1:b2:c3:d4:e5:f6). \n"
if (connection_hostname == "" or connection_hostname is None) and (
connection_port == "" or connection_port is None):
continue
if (connection_hostname
== prev_connections[my_port]["connection_hostname"]
and connection_port
== prev_connections[my_port]["connection_port"]):
continue
if not (connection_hostname != "" and connection_port != ""):
result += "Connections require both a hostname and connection port."
other_instance = None
for prev_action in all_cp_actions:
if prev_action.step >= cp_action.step:
continue
if (prev_action.new_record[Constants.HOSTNAME_KEY] ==
connection_hostname):
other_instance = self.instance_manager.make_instance(
prev_action.new_record)
if other_instance is None:
other_instance = self.instance_table.get_instance_by_hostname(
connection_hostname)
if other_instance is None:
result += f"The asset with hostname {connection_hostname} does not exist. Connections must be between assets with existing hostnames. \n"
continue
if connection_port in other_instance.network_connections:
if (other_instance.network_connections[connection_port]
["connection_port"] != my_port) and (
other_instance.network_connections[connection_port]
["connection_port"] != ""):
result += f"The port {connection_port} on asset with hostname {connection_hostname} is connected to another asset. \n"
continue
if (other_instance.network_connections[connection_port]
["connection_hostname"] != hostname) and (
other_instance.network_connections[connection_port]
["connection_hostname"] != ""):
result += f"The port {connection_port} on asset with hostname {connection_hostname} is already connected to another asset."
if result == "":
return Constants.API_SUCCESS
else:
return result
def return_conflict(self, current_instance):
result = f"The asset placement conflicts with asset with asset number {current_instance.asset_number} "
result += f"on rack {current_instance.rack_label} at height U{current_instance.rack_position}."
return result
class InstanceManager:
def __init__(self):
self.table = InstanceTable()
self.model_table = ModelTable()
self.dc_table = DatacenterTable()
self.rack_table = RackTable()
self.validate = InstanceValidator()
self.asset_num_generator = AssetNumGenerator()
def create_instance(self, instance_data):
print("INSTANCE DATA")
print(instance_data)
try:
try:
new_instance = self.make_instance(instance_data)
if type(new_instance) is InvalidInputsError:
return new_instance
except InvalidInputsError as e:
return e.message
create_validation_result = Constants.API_SUCCESS
try:
create_validation_result = self.validate.create_instance_validation(
new_instance)
if create_validation_result != Constants.API_SUCCESS:
raise InvalidInputsError(create_validation_result)
except InvalidInputsError as e:
raise InvalidInputsError(e.message)
# try:
is_in_offline_storage = (DatacenterTable().get_datacenter_by_name(
instance_data.get(Constants.DC_NAME_KEY)).is_offline_storage)
self.table.add_instance(new_instance)
if (new_instance.mount_type != Constants.BLADE_KEY
and not is_in_offline_storage):
power_result = self.add_power_connections(new_instance)
print("POWER RESULT")
print(power_result)
if power_result != Constants.API_SUCCESS:
self.table.delete_instance_by_asset_number(
new_instance.asset_number)
raise InvalidInputsError(
"An error occurred when trying to add power connections."
)
connect_result = self.make_corresponding_connections(
new_instance.network_connections, new_instance.hostname)
if connect_result != Constants.API_SUCCESS:
self.table.delete_instance_by_asset_number(
new_instance.asset_number)
raise InvalidInputsError(connect_result)
# except:
# raise InvalidInputsError("Unable to create asset")
except InvalidInputsError as e:
print(e.message)
raise InvalidInputsError(e.message)
# except Exception as e:
# print(str(e))
# raise InvalidInputsError(
# "An error occurred when attempting to create the asset."
# )
def delete_instance(self, instance_data):
asset_number = self.check_null(
instance_data[Constants.ASSET_NUMBER_KEY])
if asset_number == "":
raise InvalidInputsError("Must provide an asset number")
asset = self.table.get_instance_by_asset_number(asset_number)
if asset is None:
raise InvalidInputsError(
"The asset you are trying to delete was not found.")
if asset.mount_type == Constants.CHASIS_KEY:
blade_list = self.table.get_blades_by_chassis_hostname(
asset.hostname)
if blade_list is not None:
raise InvalidInputsError(
"A blade chassis must be empty before it can be decommissioned or deleted."
)
if asset.mount_type != Constants.BLADE_KEY:
delete_power_result = self.delete_power_connections(asset)
print(delete_power_result)
if delete_power_result != Constants.API_SUCCESS:
raise InvalidInputsError(
"An error occurred when trying to remove power connections."
)
delete_connection_result = self.delete_connections(asset)
if delete_connection_result != Constants.API_SUCCESS:
raise InvalidInputsError(delete_connection_result)
try:
self.table.delete_instance_by_asset_number(asset_number)
except:
raise InvalidInputsError(
"An error occurred when trying to delete the specified asset.")
def detail_view(self, instance_data):
print(instance_data)
asset_number = instance_data.get(Constants.ASSET_NUMBER_KEY)
try:
print("Get these things")
print(asset_number)
instance = self.table.get_instance_by_asset_number(asset_number)
return instance
except:
raise InvalidInputsError(
"An error occured while retrieving data for this asset.")
def edit_instance(self, instance_data):
print("INSTANCE DATA")
print(instance_data)
try:
original_asset_number = instance_data.get(
Constants.ASSET_NUMBER_ORIG_KEY)
if original_asset_number is None:
raise InvalidInputsError("Unable to find the asset to edit.")
original_asset = self.table.get_instance_by_asset_number(
original_asset_number)
if original_asset is None:
raise InvalidInputsError("Could not find asset to update.")
new_instance = self.make_instance(instance_data)
if type(new_instance) is InvalidInputsError:
return new_instance
self.delete_power_connections(original_asset)
delete_connection_result = self.delete_connections(original_asset)
if delete_connection_result != Constants.API_SUCCESS:
raise InvalidInputsError(
"Failed to update network connections.")
edit_validation_result = self.validate.edit_instance_validation(
new_instance, original_asset_number)
if edit_validation_result != Constants.API_SUCCESS:
original_instance = self.table.get_instance_by_asset_number(
original_asset_number)
self.make_corresponding_connections(
original_instance.network_connections,
original_instance.hostname)
raise InvalidInputsError(edit_validation_result)
except InvalidInputsError as e:
raise InvalidInputsError(e.message)
self.add_power_connections(new_instance)
edit_connection_result = self.make_corresponding_connections(
new_instance.network_connections, new_instance.hostname)
if edit_connection_result != Constants.API_SUCCESS:
original_instance = self.table.get_instance_by_asset_number(
original_asset_number)
self.make_corresponding_connections(
original_instance.network_connections,
original_instance.hostname)
raise InvalidInputsError(edit_connection_result)
self.table.edit_instance(new_instance, original_asset_number)
if new_instance.mount_type == Constants.CHASIS_KEY and (
original_asset.hostname != new_instance.hostname
or original_asset.datacenter_id != new_instance.datacenter_id):
blade_list = self.table.get_blades_by_chassis_hostname(
original_asset.hostname)
if blade_list is not None:
for blade in blade_list:
blade.chassis_hostname = new_instance.hostname
blade.datacenter_id = new_instance.datacenter_id
self.table.edit_instance(blade, blade.asset_number)
def get_instances(self, filter, dc_name, limit: int):
model_name = filter.get(Constants.MODEL_KEY)
try:
if model_name is not None and model_name != "":
print("MODEL_NAME")
print(model_name)
model_id = self.get_model_id_from_name(model_name)
else:
model_id = None
except:
raise InvalidInputsError(
"An error occurred while trying to filter by model name. Please input a different model name"
)
try:
if dc_name is not None:
dc_id = self.get_datacenter_id_from_name(dc_name)
if dc_id == -1:
dc_id = None
except:
raise InvalidInputsError(
"An error occurred while trying to filter by datacenter name. Please input a different model name"
)
hostname = filter.get(Constants.HOSTNAME_KEY)
rack_label = filter.get(Constants.RACK_KEY)
rack_position = filter.get(Constants.RACK_POSITION_KEY)
try:
instance_list = self.table.get_instances_with_filters(
model_id=model_id,
hostname=hostname,
rack_label=rack_label,
rack_position=rack_position,
datacenter_id=dc_id,
limit=limit,
)
return instance_list
except:
raise InvalidInputsError(
"An error occurred while trying to retrieve instance data.")
def get_possible_models_with_filters(self, prefix_json):
try:
return_list = []
model_list = self.model_table.get_all_models()
for model in model_list:
model_name = model.vendor + " " + model.model_number
# if model_name.startswith(prefix):
return_list.append(model_name)
return return_list
except:
raise InvalidInputsError(
"An error occurred while trying to retrieve model options.")
def make_instance(self, instance_data):
model_name = self.check_null(instance_data[Constants.MODEL_KEY])
model_id = self.get_model_id_from_name(model_name)
model = self.get_model_from_id(model_id)
mount_type = model.mount_type
datacenter_name = self.check_null(instance_data[Constants.DC_NAME_KEY])
datacenter_id = self.get_datacenter_id_from_name(datacenter_name)
try:
hostname = self.check_null(instance_data[Constants.HOSTNAME_KEY])
rack = self.check_null(instance_data[Constants.RACK_KEY].upper())
rack_position = self.check_null(
instance_data[Constants.RACK_POSITION_KEY])
owner = self.check_null(instance_data[Constants.OWNER_KEY])
comment = self.check_null(instance_data[Constants.COMMENT_KEY])
network_connections = self.check_null(
instance_data[Constants.NETWORK_CONNECTIONS_KEY])
power_connections = self.check_null(
instance_data[Constants.POWER_CONNECTIONS_KEY])
asset_number = self.check_null(
instance_data[Constants.ASSET_NUMBER_KEY])
except:
raise InvalidInputsError(
"Could not read data fields correctly. Client-server error occurred."
)
display_color = self.asset_or_model_val(
instance_data.get(Constants.DISPLAY_COLOR_KEY),
model.display_color)
cpu = self.asset_or_model_val(instance_data.get(Constants.CPU_KEY),
model.cpu)
self.asset_or_model_val(instance_data.get(Constants.CPU_KEY),
model.cpu)
memory = self.asset_or_model_val(
instance_data.get(Constants.MEMORY_KEY), model.memory)
storage = self.asset_or_model_val(
instance_data.get(Constants.STORAGE_KEY), model.storage)
if mount_type == Constants.BLADE_KEY:
chassis_hostname = instance_data.get(
Constants.CHASSIS_HOSTNAME_KEY)
chassis_slot = instance_data.get(Constants.CHASSIS_SLOT_KEY)
else:
chassis_hostname = ""
chassis_slot = -1
# if rack == "":
# return InvalidInputsError("Must provide a rack location")
# if rack_position == "":
# return InvalidInputsError("Must provide a rack location")
if asset_number == "":
return InvalidInputsError("Must provide an asset number")
return Instance(
model_id,
hostname,
rack,
rack_position,
owner,
comment,
datacenter_id,
network_connections,
power_connections,
asset_number,
mount_type,
display_color,
cpu,
memory,
storage,
chassis_hostname,
chassis_slot,
)
def get_model_id_from_name(self, model_name):
try:
model_list = self.model_table.get_all_models()
for model in model_list:
if model.vendor + " " + model.model_number == model_name:
print("FOUND MATCH")
model_id = self.model_table.get_model_id_by_vendor_number(
model.vendor, model.model_number)
if model_id is None:
model_id = -1
return model_id
return -1
except:
raise InvalidInputsError(
"An error occurred while trying to retrieve model info corresponding to the instance."
)
def get_datacenter_id_from_name(self, datacenter_name):
try:
datacenter_id = self.dc_table.get_datacenter_id_by_name(
datacenter_name)
if datacenter_id is None:
return -1
return datacenter_id
except:
raise InvalidInputsError(
"An error occurred while trying to retrieve datacenter info corresponding to the instance."
)
def get_model_from_id(self, model_id):
model = self.model_table.get_model(model_id)
if model is None:
raise InvalidInputsError(
"An error occurred while trying to retrieve model info corresponding to the instance."
)
return model
def get_dc_from_id(self, dc_id):
datacenter = self.dc_table.get_datacenter(dc_id)
if datacenter is None:
raise InvalidInputsError(
"An error occurred while trying to retrieve datacenter info corresponding to the instance."
)
return datacenter
def make_corresponding_connections(self, network_connections, hostname):
for port in network_connections:
connection_hostname = network_connections[port][
"connection_hostname"]
connection_port = network_connections[port]["connection_port"]
if (connection_hostname == "" or connection_hostname is None) and (
connection_port == "" or connection_port is None):
continue
# print("SEARCH " + connection_hostname)
other_instance = self.table.get_instance_by_hostname(
connection_hostname)
print("COMPLETE")
if other_instance is None:
return f"An error occurred when attempting to add the network connection. Could not find asset with hostname {connection_hostname}."
other_instance.network_connections[connection_port][
"connection_hostname"] = hostname
other_instance.network_connections[connection_port][
"connection_port"] = port
print(other_instance.network_connections)
try:
print("EDITIG")
self.table.edit_instance(other_instance,
other_instance.asset_number)
print("EDITED SUCCESS")
except:
return f"Could not add new network connections to asset with hostname {other_instance.hostname}."
return Constants.API_SUCCESS
def delete_connections(self, asset):
if asset is None:
return "Failed to find the asset to delete"
for port in asset.network_connections:
connection_hostname = asset.network_connections[port][
"connection_hostname"]
connection_port = asset.network_connections[port][
"connection_port"]
if (connection_hostname == "" or connection_hostname is None) and (
connection_port == "" or connection_port is None):
continue
other_instance = self.table.get_instance_by_hostname(
connection_hostname)
if other_instance is None:
return f"An error occurred when attempting to delete the network connection. Could not find asset with hostname {connection_hostname}."
other_instance.network_connections[connection_port][
"connection_hostname"] = ""
other_instance.network_connections[connection_port][
"connection_port"] = ""
print(other_instance.network_connections)
try:
print("EDITIG")
self.table.edit_instance(other_instance,
other_instance.asset_number)
print("EDITED SUCCESS")
except:
return f"Could not add new network connections to asset with hostname {other_instance.hostname}."
return Constants.API_SUCCESS
def add_power_connections(self, instance):
rack = self.rack_table.get_rack(instance.rack_label,
instance.datacenter_id)
if rack is None:
return f"Could not find rack {instance.rack_label}"
for p_connection in instance.power_connections:
char1 = p_connection[0].upper()
num = int(p_connection[1:])
if char1 == "L":
rack.pdu_left[num - 1] = 1
elif char1 == "R":
rack.pdu_right[num - 1] = 1
else:
return "Invalid power connection. Please specify left or right PDU."
self.rack_table.edit_rack(rack)
return Constants.API_SUCCESS
def delete_power_connections(self, instance):
if instance is None:
return "Asset could not be found."
rack = self.rack_table.get_rack(instance.rack_label,
instance.datacenter_id)
if rack is None:
return f"Could not find rack {instance.rack_label}"
for p_connection in instance.power_connections:
char1 = p_connection[0].upper()
num = int(p_connection[1:])
if char1 == "L":
rack.pdu_left[num - 1] = 0
elif char1 == "R":
rack.pdu_right[num - 1] = 0
else:
return "Invalid power connection. Please specify left or right PDU."
self.rack_table.edit_rack(rack)
return Constants.API_SUCCESS
def get_network_neighborhood(self, asset_number):
if asset_number is None or asset_number == "":
raise InvalidInputsError("No asset number found in the request.")
asset = self.table.get_instance_by_asset_number(asset_number)
if asset is None:
raise InvalidInputsError("The asset requested could not be found.")
connections_dict = {}
if asset.mount_type == Constants.CHASIS_KEY:
blade_list = self.table.get_blades_by_chassis_hostname(
asset.hostname)
if blade_list is not None and len(blade_list) != 0:
for blade in blade_list:
connections_dict[blade.hostname] = []
is_blade = asset.mount_type == Constants.BLADE_KEY
if is_blade:
connected_asset = self.table.get_instance_by_hostname(
asset.chassis_hostname)
if connected_asset is None:
raise InvalidInputsError(
f"Connection to asset with hostname {asset.chassis_hostname} was not found."
)
two_deep_list = self.make_two_deep_list(connected_asset)
connections_dict[connected_asset.hostname] = two_deep_list
else:
for port in asset.network_connections:
hostname = asset.network_connections[port][
"connection_hostname"]
if hostname is None or hostname == "":
continue
connected_asset = self.table.get_instance_by_hostname(hostname)
if connected_asset is None:
raise InvalidInputsError(
f"Connection to asset with hostname {hostname} was not found."
)
two_deep_list = self.make_two_deep_list(connected_asset)
connections_dict[hostname] = two_deep_list
print(connections_dict)
return connections_dict
def make_two_deep_list(self, connected_asset):
two_deep_list = []
if connected_asset.mount_type == Constants.CHASIS_KEY:
blade_list = self.table.get_blades_by_chassis_hostname(
connected_asset.hostname)
if blade_list is not None and len(blade_list) != 0:
for blade in blade_list:
two_deep_list.append(blade.hostname)
for port2 in connected_asset.network_connections:
host2 = connected_asset.network_connections[port2][
"connection_hostname"]
two_deep_list.append(host2)
return two_deep_list
def get_all_chassis(self):
try:
chassis_list = self.table.get_asset_by_mount_type(
Constants.CHASIS_KEY)
if chassis_list is None:
chassis_list = []
return chassis_list
except:
raise InvalidInputsError(
"An error occurred while trying to retrieve blade chassis.")
def get_blades_in_chassis(self, asset_data):
try:
chassis_hostname = asset_data.get(Constants.CHASSIS_HOSTNAME_KEY)
if chassis_hostname is None or chassis_hostname == "":
raise InvalidInputsError(
"Must provide a valid blade chassis hostname.")
blade_list = self.table.get_blades_by_chassis_hostname(
chassis_hostname)
if blade_list is None:
return []
return blade_list
except InvalidInputsError as e:
raise InvalidInputsError(e.message)
except:
raise InvalidInputsError(
"An error occurred while trying to retrieve blade chassis.")
def check_null(self, val):
if val is None:
return ""
else:
return val
def asset_or_model_val(self, instance_val, model_val):
if self.check_null(instance_val) != "":
return instance_val
else:
return model_val
class InstanceValidator:
def __init__(self):
self.instance_table = InstanceTable()
self.model_table = ModelTable()
self.rack_table = RackTable()
self.user_table = UserTable()
self.dc_table = DatacenterTable()
self.rack_height = 42
def create_instance_validation(self, instance, queue=None):
basic_val_result = self.basic_validations(instance, -1)
if basic_val_result != Constants.API_SUCCESS:
return basic_val_result
model_template = self.model_table.get_model(instance.model_id)
if model_template is None:
return "The model does not exist."
dc_template = self.dc_table.get_datacenter(instance.datacenter_id)
if dc_template is None:
return "The datacenter does not exist."
# Check that connections are only within a single datacenter
net_cons = instance.network_connections
for port in net_cons.keys():
dest_hostname = net_cons[port][Constants.CONNECTION_HOSTNAME]
if dest_hostname != "" and dest_hostname is not None:
dc_id = (InstanceTable().get_instance_by_hostname(
dest_hostname).datacenter_id)
if dc_id != instance.datacenter_id:
raise InvalidInputsError(
"Network connections cannot span multiple datacenters")
if dc_template.is_offline_storage:
return Constants.API_SUCCESS
if instance.mount_type == Constants.BLADE_KEY:
return self.blade_validation(instance, -1, queue)
else:
return self.rackmount_validation(instance, -1, model_template,
dc_template)
def edit_instance_validation(self, instance, original_asset_number):
basic_val_result = self.basic_validations(instance,
original_asset_number)
if basic_val_result != Constants.API_SUCCESS:
return basic_val_result
model_template = self.model_table.get_model(instance.model_id)
if model_template is None:
return "The model does not exist."
dc_template = self.dc_table.get_datacenter(instance.datacenter_id)
if dc_template is None:
return "The datacenter does not exist."
# Check that connections are only within a single datacenter
net_cons = instance.network_connections
for port in net_cons.keys():
dest_hostname = net_cons[port][Constants.CONNECTION_HOSTNAME]
if dest_hostname != "" and dest_hostname is not None:
dc_id = (InstanceTable().get_instance_by_hostname(
dest_hostname).datacenter_id)
if dc_id != instance.datacenter_id:
raise InvalidInputsError(
"Network connections cannot span multiple datacenters")
if dc_template.is_offline_storage:
return Constants.API_SUCCESS
if instance.mount_type == Constants.BLADE_KEY:
return self.blade_validation(instance, original_asset_number)
else:
return self.rackmount_validation(instance, original_asset_number,
model_template, dc_template)
return Constants.API_SUCCESS
def basic_validations(self, instance, original_asset_number):
if (instance.asset_number != original_asset_number
and original_asset_number != -1):
asset_pattern = re.compile("[0-9]{6}")
if asset_pattern.fullmatch(str(instance.asset_number)) is None:
return "Asset numbers must be 6 digits long and only contain numbers."
if (self.instance_table.get_instance_by_asset_number(
instance.asset_number) is not None):
return f"Asset numbers must be unique. An asset with asset number {instance.asset_number} already exists."
if instance.hostname != "" and instance.hostname is not None:
duplicate_hostname = self.instance_table.get_instance_by_hostname(
instance.hostname)
if duplicate_hostname is not None:
if duplicate_hostname.asset_number != original_asset_number:
print("DUPLICATE NUMBER", duplicate_hostname.asset_number)
print("ORIGINAL NUMBER", original_asset_number)
return f"An asset with hostname {duplicate_hostname.hostname} already exists. Please provide a unique hostname."
if len(instance.hostname) > 64:
return "Hostnames must be 64 characters or less"
host_pattern = re.compile("[a-zA-Z]*[A-Za-z0-9-]*[A-Za-z0-9]")
if host_pattern.fullmatch(instance.hostname) is None:
return "Hostnames must start with a letter, only contain letters, numbers, periods, and hyphens, and end with a letter or number."
if instance.owner != "" and self.user_table.get_user(
instance.owner) is None:
return f"The owner {instance.owner} is not an existing user. Please enter the username of an existing user."
return Constants.API_SUCCESS
def rackmount_validation(self, instance, original_asset_number,
model_template, dc_template):
if instance.mount_type == Constants.CHASIS_KEY and instance.hostname == "":
if (self.instance_table.get_blades_by_chassis_hostname(
instance.hostname) is not None):
return "Blade chassis with blades require a hostname."
rack = self.rack_table.get_rack(instance.rack_label,
instance.datacenter_id)
if rack is None and not dc_template.is_offline_storage:
return f"Rack {instance.rack_label} does not exist in datacenter {dc_template}. Assets must be created on preexisting racks"
p_connection_set = set()
for p_connection in instance.power_connections:
if p_connection in p_connection_set:
return "Cannot connect two asset power ports to the same PDU port."
else:
p_connection_set.add(p_connection)
char1 = p_connection[0].upper()
print("PRINGINDISNFISNF")
print(p_connection)
num = int(p_connection[1:])
if char1 == "L":
pdu_arr = rack.pdu_left
elif char1 == "R":
pdu_arr = rack.pdu_right
else:
return "Invalid power connection. Please specify left or right PDU."
if pdu_arr[num - 1] == 1:
return f"There is already an asset connected at PDU {char1}{num}. Please pick an empty PDU port."
pattern = re.compile("[0-9]+")
if pattern.fullmatch(str(instance.rack_position)) is None:
return "The value for Rack U must be a positive integer."
instance_bottom = int(instance.rack_position)
instance_top = instance_bottom + int(model_template.height) - 1
if instance_top > self.rack_height:
return "The placement of the instance exceeds the height of the rack."
instance_list = self.instance_table.get_instances_by_rack(
instance.rack_label, instance.datacenter_id)
if instance_list is not None:
for current_instance in instance_list:
if current_instance.asset_number == original_asset_number:
continue
model = self.model_table.get_model(current_instance.model_id)
current_instance_top = current_instance.rack_position + model.height - 1
if (current_instance.rack_position >= instance_bottom
and current_instance.rack_position <= instance_top):
return self.return_conflict(current_instance)
elif (current_instance_top >= instance_bottom
and current_instance_top <= instance_top):
return self.return_conflict(current_instance)
connection_validation_result = self.validate_connections(
instance.network_connections, instance.hostname)
if connection_validation_result != Constants.API_SUCCESS:
return connection_validation_result
return Constants.API_SUCCESS
def blade_validation(self, instance, original_asset_number, queue=None):
blade_chassis = self.instance_table.get_instance_by_hostname(
instance.chassis_hostname)
print("\n\n")
print("CHECKING THE QUEUE")
# In the case of import instance, need to check queue of instances as well as db
if queue is not None and blade_chassis is None:
for item in queue:
print(item)
if item.hostname == instance.chassis_hostname:
blade_chassis = item
print("BLADE CHASSIS")
print(blade_chassis)
if blade_chassis is None:
return f"No blade chassis exists with hostname {instance.chassis_hostname}."
elif blade_chassis.mount_type != Constants.CHASIS_KEY:
return f"Asset with hostname {instance.chassis_hostname} is not a blade chassis. Blades can only be installed in a blade chassis."
if blade_chassis.datacenter_id != instance.datacenter_id:
return f"The blade chassis selected is in datacenter {blade_chassis.datacenter_id}. A blade and its chassis must be in the same datacenter."
if instance.chassis_slot > 14 or instance.chassis_slot < 1:
return f"A blade chassis contains 14 slots. Please provide a position between 1 and 14."
blade_conflict = self.instance_table.get_blade_by_chassis_and_slot(
instance.chassis_hostname, instance.chassis_slot)
if (blade_conflict is not None
and blade_conflict.asset_number != original_asset_number):
return f"Blade with asset number {blade_conflict.asset_number} already exists at slot {instance.chassis_slot} of chassis with hostname {instance.chassis_hostname}."
return Constants.API_SUCCESS
def validate_connections(self, network_connections, hostname):
# print("validating connections")
result = ""
new_connections = {}
for my_port in network_connections:
mac_adress = network_connections[my_port][
Constants.MAC_ADDRESS_KEY]
connection_hostname = network_connections[my_port][
"connection_hostname"]
connection_port = network_connections[my_port]["connection_port"]
if connection_hostname in new_connections.keys():
if new_connections[connection_hostname] == connection_port:
result += "Cannot make two network connections to the same port."
elif connection_hostname != "" and connection_port != "":
new_connections[connection_hostname] = connection_port
mac_pattern = re.compile(
"[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}"
)
if mac_adress != "" and mac_pattern.fullmatch(
mac_adress.lower()) is None:
result += f"Invalid MAC address for port {my_port}. MAC addresses must be 6 byte, colon separated hexidecimal strings (i.e. a1:b2:c3:d4:e5:f6). \n"
if (connection_hostname == "" or connection_hostname is None) and (
connection_port == "" or connection_port is None):
continue
if not (connection_hostname != "" and connection_port != ""):
result += "Connections require both a hostname and connection port."
other_instance = self.instance_table.get_instance_by_hostname(
connection_hostname)
if other_instance is None:
result += f"The asset with hostname {connection_hostname} does not exist. Connections must be between assets with existing hostnames. \n"
continue
if connection_port in other_instance.network_connections:
if (other_instance.network_connections[connection_port]
["connection_port"] != my_port) and (
other_instance.network_connections[connection_port]
["connection_port"] != ""):
result += f"The port {connection_port} on asset with hostname {connection_hostname} is connected to another asset. \n"
continue
if (other_instance.network_connections[connection_port]
["connection_hostname"] != hostname) and (
other_instance.network_connections[connection_port]
["connection_hostname"] != ""):
result += f"The port {connection_port} on asset with hostname {connection_hostname} is already connected to another asset. \n"
# print("finished connection validation")
if result == "":
return Constants.API_SUCCESS
else:
return result
def return_conflict(self, current_instance):
result = f"The asset placement conflicts with asset with asset number {current_instance.asset_number} "
result += f"on rack {current_instance.rack_label} at height U{current_instance.rack_position}."
return result