#2064: Edited services and applications to handle when they are shut down

src/primaite/simulator/network/container.py

@@ -52,6 +52,17 @@ class Network(SimComponent):
         )
         return rm
 
+    def apply_timestep(self, timestep: int) -> None:
+        """Apply a timestep evolution to this the network and its nodes and links."""
+        super().apply_timestep(timestep=timestep)
+        # apply timestep to nodes
+        for node_id in self.nodes:
+            self.nodes[node_id].apply_timestep(timestep=timestep)
+
+        # apply timestep to links
+        for link_id in self.links:
+            self.links[link_id].apply_timestep(timestep=timestep)
+
     @property
     def routers(self) -> List[Router]:
         """The Routers in the Network."""

src/primaite/simulator/network/hardware/base.py

@@ -2,7 +2,6 @@ from __future__ import annotations
 
 import re
 import secrets
-from enum import Enum
 from ipaddress import IPv4Address, IPv4Network
 from pathlib import Path
 from typing import Any, Dict, Literal, Optional, Tuple, Union
@@ -15,6 +14,7 @@ from primaite.simulator import SIM_OUTPUT
 from primaite.simulator.core import RequestManager, RequestType, SimComponent
 from primaite.simulator.domain.account import Account
 from primaite.simulator.file_system.file_system import FileSystem
+from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState
 from primaite.simulator.network.protocols.arp import ARPEntry, ARPPacket
 from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame
 from primaite.simulator.network.transmission.network_layer import ICMPPacket, ICMPType, IPPacket, IPProtocol
@@ -856,19 +856,6 @@ class ICMP:
         return sequence, icmp_packet.identifier
 
 
-class NodeOperatingState(Enum):
-    """Enumeration of Node Operating States."""
-
-    ON = 1
-    "The node is powered on."
-    OFF = 2
-    "The node is powered off."
-    BOOTING = 3
-    "The node is in the process of booting up."
-    SHUTTING_DOWN = 4
-    "The node is in the process of shutting down."
-
-
 class Node(SimComponent):
     """
     A basic Node class that represents a node on the network.
@@ -1090,18 +1077,21 @@ class Node(SimComponent):
         else:
             if self.operating_state == NodeOperatingState.BOOTING:
                 self.operating_state = NodeOperatingState.ON
-                self.sys_log.info("Turned on")
+                self.sys_log.info(f"{self.hostname}: Turned on")
                 for nic in self.nics.values():
                     if nic._connected_link:
                         nic.enable()
 
+                self._start_up_actions()
+
         # count down to shut down
         if self.shut_down_countdown > 0:
             self.shut_down_countdown -= 1
         else:
             if self.operating_state == NodeOperatingState.SHUTTING_DOWN:
                 self.operating_state = NodeOperatingState.OFF
-                self.sys_log.info("Turned off")
+                self.sys_log.info(f"{self.hostname}: Turned off")
+                self._shut_down_actions()
 
                 # if resetting turn back on
                 if self.is_resetting:
@@ -1418,6 +1408,24 @@ class Node(SimComponent):
         _LOGGER.info(f"Removed application {application.uuid} from node {self.uuid}")
         self._application_request_manager.remove_request(application.uuid)
 
+    def _shut_down_actions(self):
+        """Actions to perform when the node is shut down."""
+        # Turn off all the services in the node
+        for service_id in self.services:
+            self.services[service_id].stop()
+
+        # Turn off all the applications in the node
+        for app_id in self.applications:
+            self.applications[app_id].close()
+
+        # Turn off all processes in the node
+        # for process_id in self.processes:
+        #     self.processes[process_id]
+
+    def _start_up_actions(self):
+        """Actions to perform when the node is starting up."""
+        pass
+
     def __contains__(self, item: Any) -> bool:
         if isinstance(item, Service):
             return item.uuid in self.services

src/primaite/simulator/network/hardware/node_operating_state.py

@@ -0,0 +1,14 @@
+from enum import Enum
+
+
+class NodeOperatingState(Enum):
+    """Enumeration of Node Operating States."""
+
+    ON = 1
+    "The node is powered on."
+    OFF = 2
+    "The node is powered off."
+    BOOTING = 3
+    "The node is in the process of booting up."
+    SHUTTING_DOWN = 4
+    "The node is in the process of shutting down."

src/primaite/simulator/network/protocols/ftp.py

@@ -35,6 +35,9 @@ class FTPCommand(Enum):
 class FTPStatusCode(Enum):
     """Status code of the current FTP request."""
 
+    NOT_FOUND = 14
+    """Destination not found."""
+
     OK = 200
     """Command successful."""