""" Generated by Statechart compiler by Glenn De Jonghe and Joeri Exelmans Date: Wed Jul 27 14:52:25 2016 Model author: Yentl Van Tendeloo Model name: MvK Server Model description: Modelverse Kernel server. Server for the MvI, client of the MvS. """ from python_runtime.statecharts_core import * import time import os import urllib import sys import json import sys from collections import defaultdict sys.path.append("../kernel/") sys.path.append("../state/") from modelverse_kernel.main import ModelverseKernel from modelverse_state.main import ModelverseState # package "MvK Server" class MvKController(RuntimeClassBase): def __init__(self, controller, params): RuntimeClassBase.__init__(self, controller) self.semantics.big_step_maximality = StatechartSemantics.TakeMany self.semantics.internal_event_lifeline = StatechartSemantics.Queue self.semantics.input_event_lifeline = StatechartSemantics.FirstComboStep self.semantics.priority = StatechartSemantics.SourceParent self.semantics.concurrency = StatechartSemantics.Single # Call user defined constructor MvKController.user_defined_constructor(self, params) def user_defined_constructor(self, params): self.mvs = ModelverseState("../bootstrap/bootstrap.m") self.root = self.mvs.read_root()[0] self.mvk = ModelverseKernel(self.root) self.all_failed = False self.timeout = False self.users = set() self.input_queue = defaultdict(list) self.output_queue = defaultdict(list) self.source = None self.mvs_operations = { "CN": self.mvs.create_node, "CE": self.mvs.create_edge, "CNV": self.mvs.create_nodevalue, "CD": self.mvs.create_dict, "RV": self.mvs.read_value, "RO": self.mvs.read_outgoing, "RI": self.mvs.read_incoming, "RE": self.mvs.read_edge, "RD": self.mvs.read_dict, "RDN": self.mvs.read_dict_node, "RDNE": self.mvs.read_dict_node_edge, "RDE": self.mvs.read_dict_edge, "RRD": self.mvs.read_reverse_dict, "RR": self.mvs.read_root, "RDK": self.mvs.read_dict_keys, "DE": self.mvs.delete_edge, "DN": self.mvs.delete_node, } self.execute_modelverse("", "load_primitives", []) def user_defined_destructor(self): pass # User defined method def execute_modelverse(self, username, operation, params): reply = None commands = [] while 1: commands = self.mvk.execute_yields(username, operation, params, reply) if commands is None: break reply = [self.mvs_operations[command[0]](*(command[1]))[0] for command in commands] if len(reply) == 1: reply = reply[0] def initializeStatechart(self): self.current_state[self.Root] = [] self.current_state[self.Root_running] = [] self.current_state[self.Root_running_wait_for_requests] = [] self.current_state[self.Root_running_execution] = [] self.current_state[self.Root_running_remove_sockets] = [] # Enter default state self.enter_Root_init_server() # Unique IDs for all statechart nodes Root = 0 Root_running = 1 Root_running_wait_for_requests = 2 Root_running_execution = 3 Root_running_remove_sockets = 4 Root_init_server = 5 Root_running_wait_for_requests_wait = 6 Root_running_execution_execution = 7 Root_running_remove_sockets_remove_sockets = 8 # Statechart enter/exit action method(s) def enter_Root_running(self): self.current_state[self.Root].append(self.Root_running) def exit_Root_running(self): self.exit_Root_running_wait_for_requests() self.exit_Root_running_execution() self.exit_Root_running_remove_sockets() self.current_state[self.Root] = [] def enter_Root_running_wait_for_requests(self): self.current_state[self.Root_running].append(self.Root_running_wait_for_requests) def exit_Root_running_wait_for_requests(self): if self.Root_running_wait_for_requests_wait in self.current_state[self.Root_running_wait_for_requests]: self.exit_Root_running_wait_for_requests_wait() self.current_state[self.Root_running] = [] def enter_Root_running_execution(self): self.current_state[self.Root_running].append(self.Root_running_execution) def exit_Root_running_execution(self): if self.Root_running_execution_execution in self.current_state[self.Root_running_execution]: self.exit_Root_running_execution_execution() self.current_state[self.Root_running] = [] def enter_Root_running_remove_sockets(self): self.current_state[self.Root_running].append(self.Root_running_remove_sockets) def exit_Root_running_remove_sockets(self): if self.Root_running_remove_sockets_remove_sockets in self.current_state[self.Root_running_remove_sockets]: self.exit_Root_running_remove_sockets_remove_sockets() self.current_state[self.Root_running] = [] def enter_Root_init_server(self): self.big_step.outputEventOM(Event("create_instance", None, [self, 'to_mvi', 'Server', '', 8001])) self.current_state[self.Root].append(self.Root_init_server) def exit_Root_init_server(self): self.current_state[self.Root] = [] def enter_Root_running_wait_for_requests_wait(self): self.current_state[self.Root_running_wait_for_requests].append(self.Root_running_wait_for_requests_wait) def exit_Root_running_wait_for_requests_wait(self): self.current_state[self.Root_running_wait_for_requests] = [] def enter_Root_running_execution_execution(self): self.timers[0] = 0 self.timers[1] = 0.1 self.timers[2] = 0 self.timeout = False self.destination = None if self.users: user = self.users.pop() # Check if there are values to input if self.input_queue[user]: source, args = self.input_queue[user].pop(0) for args_entry in args: self.execute_modelverse(user, "set_input", args_entry) self.destination = source self.value = {"id": 200, "value": "OK"} self.all_failed = False # Now process for some steps, or until we are again blocked for input for x in xrange(200): self.execute_modelverse(user, "execute_rule", []) if not self.mvk.success: # Blocking or broken, so quit already to stop wasting CPU break self.all_failed = False # Check that we don't have anything to output yet, otherwise we wait if self.destination is None: # Perform output if there is anything if self.output_queue[user]: self.execute_modelverse(user, "get_output", []) if self.mvk.success: self.destination = self.output_queue[user].pop(0) self.value = self.mvk.returnvalue self.all_failed = False else: out = self.mvs.read_outgoing(self.root)[0] for m in out: src, user = self.mvs.read_edge(m)[0] outgoing = self.mvs.read_outgoing(m)[0] first = self.mvs.read_edge(outgoing[0])[0] dest = first[1] name = self.mvs.read_value(dest)[0] if name.startswith("__"): continue self.users.add(name) self.timeout = self.all_failed self.all_failed = True self.current_state[self.Root_running_execution].append(self.Root_running_execution_execution) def exit_Root_running_execution_execution(self): self.timers.pop(0, None) self.timers.pop(1, None) self.timers.pop(2, None) self.current_state[self.Root_running_execution] = [] def enter_Root_running_remove_sockets_remove_sockets(self): self.current_state[self.Root_running_remove_sockets].append(self.Root_running_remove_sockets_remove_sockets) def exit_Root_running_remove_sockets_remove_sockets(self): self.current_state[self.Root_running_remove_sockets] = [] # Statechart enter/exit default method(s) def enterDefault_Root_running(self): self.enter_Root_running() self.enterDefault_Root_running_wait_for_requests() self.enterDefault_Root_running_execution() self.enterDefault_Root_running_remove_sockets() def enterDefault_Root_running_wait_for_requests(self): self.enter_Root_running_wait_for_requests() self.enter_Root_running_wait_for_requests_wait() def enterDefault_Root_running_execution(self): self.enter_Root_running_execution() self.enter_Root_running_execution_execution() def enterDefault_Root_running_remove_sockets(self): self.enter_Root_running_remove_sockets() self.enter_Root_running_remove_sockets_remove_sockets() # Statechart transitions def generateCandidatesChildren_Root(self): if self.current_state[self.Root][0] == self.Root_init_server: return self.generateCandidates_Root_init_server() elif self.current_state[self.Root][0] == self.Root_running: return self.generateCandidates_Root_running() return False def generateCandidates_Root(self): if not self.combo_step.isArenaChanged(self.Root): return self.generateCandidatesChildren_Root() else: return True def generateCandidatesCurrent_Root_init_server(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if e.name == "instance_created": self.small_step.addCandidate(self.transition_Root_init_server_1, e.parameters) return True return False def generateCandidates_Root_init_server(self): if not self.combo_step.isArenaChanged(self.Root_init_server): return self.generateCandidatesCurrent_Root_init_server() else: return True def transition_Root_init_server_1(self, parameters): instancename = parameters[0] self.exit_Root_init_server() self.big_step.outputEventOM(Event("start_instance", None, [self, instancename])) self.combo_step.setArenaChanged(self.Root) self.enterDefault_Root_running() def generateCandidatesChildren_Root_running(self): branch_done = False branch_done = (self.generateCandidates_Root_running_wait_for_requests() or branch_done) branch_done = (self.generateCandidates_Root_running_execution() or branch_done) branch_done = (self.generateCandidates_Root_running_remove_sockets() or branch_done) return branch_done def generateCandidates_Root_running(self): if not self.combo_step.isArenaChanged(self.Root_running): return self.generateCandidatesChildren_Root_running() else: return True def generateCandidatesChildren_Root_running_wait_for_requests(self): if self.current_state[self.Root_running_wait_for_requests][0] == self.Root_running_wait_for_requests_wait: return self.generateCandidates_Root_running_wait_for_requests_wait() return False def generateCandidates_Root_running_wait_for_requests(self): if not self.combo_step.isArenaChanged(self.Root_running_wait_for_requests): return self.generateCandidatesChildren_Root_running_wait_for_requests() else: return True def generateCandidatesCurrent_Root_running_wait_for_requests_wait(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if e.name == "from_mvi": self.small_step.addCandidate(self.transition_Root_running_wait_for_requests_wait_1, e.parameters) return True return False def generateCandidates_Root_running_wait_for_requests_wait(self): if not self.combo_step.isArenaChanged(self.Root_running_wait_for_requests_wait): return self.generateCandidatesCurrent_Root_running_wait_for_requests_wait() else: return True def transition_Root_running_wait_for_requests_wait_1(self, parameters): source = parameters[0] data = parameters[1] self.exit_Root_running_wait_for_requests_wait() # No JSON encoding necessary, as it is not complex try: if data["op"] == "set_input": if "element_type" in data: if data["element_type"] == "V": value = json.loads(data["value"]) else: value = data["value"] args = [data["element_type"], value] self.input_queue[data["username"]].append((source, [args])) else: d = [] for t, v in json.loads(data["data"]): if t == "V": v = json.loads(v) d.append([t, v]) self.input_queue[data["username"]].append((source, d)) elif data["op"] == "get_output": self.output_queue[data["username"]].append(source) else: print("DROPPING unknown operation: " + str(data["op"])) except: print("DROPPING deserialization error") self.combo_step.setArenaChanged(self.Root_running_wait_for_requests) self.enter_Root_running_wait_for_requests_wait() def generateCandidatesChildren_Root_running_execution(self): if self.current_state[self.Root_running_execution][0] == self.Root_running_execution_execution: return self.generateCandidates_Root_running_execution_execution() return False def generateCandidates_Root_running_execution(self): if not self.combo_step.isArenaChanged(self.Root_running_execution): return self.generateCandidatesChildren_Root_running_execution() else: return True def generateCandidatesCurrent_Root_running_execution_execution(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if e.name == "_0after": parameters = e.parameters if self.destination is not None: self.small_step.addCandidate(self.transition_Root_running_execution_execution_1, e.parameters) return True enabled_events = self.getEnabledEvents() for e in enabled_events: if e.name == "_1after": parameters = e.parameters if self.timeout and self.destination is None: self.small_step.addCandidate(self.transition_Root_running_execution_execution_2, e.parameters) return True enabled_events = self.getEnabledEvents() for e in enabled_events: if e.name == "_2after": parameters = e.parameters if not self.timeout and self.destination is None: self.small_step.addCandidate(self.transition_Root_running_execution_execution_3, e.parameters) return True return False def generateCandidates_Root_running_execution_execution(self): if not self.combo_step.isArenaChanged(self.Root_running_execution_execution): return self.generateCandidatesCurrent_Root_running_execution_execution() else: return True def transition_Root_running_execution_execution_1(self, parameters): self.exit_Root_running_execution_execution() self.big_step.outputEventOM(Event("narrow_cast", None, [self, 'to_mvi/%s' % self.destination, Event("HTTP_input", None, [self.value])])) self.combo_step.setArenaChanged(self.Root_running_execution) self.enter_Root_running_execution_execution() def transition_Root_running_execution_execution_2(self, parameters): self.exit_Root_running_execution_execution() self.combo_step.setArenaChanged(self.Root_running_execution) self.enter_Root_running_execution_execution() def transition_Root_running_execution_execution_3(self, parameters): self.exit_Root_running_execution_execution() self.combo_step.setArenaChanged(self.Root_running_execution) self.enter_Root_running_execution_execution() def generateCandidatesChildren_Root_running_remove_sockets(self): if self.current_state[self.Root_running_remove_sockets][0] == self.Root_running_remove_sockets_remove_sockets: return self.generateCandidates_Root_running_remove_sockets_remove_sockets() return False def generateCandidates_Root_running_remove_sockets(self): if not self.combo_step.isArenaChanged(self.Root_running_remove_sockets): return self.generateCandidatesChildren_Root_running_remove_sockets() else: return True def generateCandidatesCurrent_Root_running_remove_sockets_remove_sockets(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if e.name == "delete_socket": self.small_step.addCandidate(self.transition_Root_running_remove_sockets_remove_sockets_1, e.parameters) return True return False def generateCandidates_Root_running_remove_sockets_remove_sockets(self): if not self.combo_step.isArenaChanged(self.Root_running_remove_sockets_remove_sockets): return self.generateCandidatesCurrent_Root_running_remove_sockets_remove_sockets() else: return True def transition_Root_running_remove_sockets_remove_sockets_1(self, parameters): socket = parameters[0] self.exit_Root_running_remove_sockets_remove_sockets() for user in self.output_queue.keys(): self.output_queue[user] = [s for s in self.output_queue[user] if s != socket] self.combo_step.setArenaChanged(self.Root_running_remove_sockets) self.enter_Root_running_remove_sockets_remove_sockets() # Generate transition candidates for current small step def generateCandidates(self): self.generateCandidates_Root() class Server(RuntimeClassBase): def __init__(self, controller, address, port): RuntimeClassBase.__init__(self, controller) self.semantics.big_step_maximality = StatechartSemantics.TakeMany self.semantics.internal_event_lifeline = StatechartSemantics.Queue self.semantics.input_event_lifeline = StatechartSemantics.FirstComboStep self.semantics.priority = StatechartSemantics.SourceParent self.semantics.concurrency = StatechartSemantics.Single # Call user defined constructor Server.user_defined_constructor(self, address, port) def user_defined_constructor(self, address, port): self.socket = None self.address = address self.port = port def user_defined_destructor(self): pass def initializeStatechart(self): self.current_state[self.Root] = [] self.current_state[self.Root_main] = [] self.current_state[self.Root_main_forward] = [] self.current_state[self.Root_main_server] = [] self.current_state[self.Root_main_close_socket] = [] # Enter default state self.enterDefault_Root_main() # Unique IDs for all statechart nodes Root = 0 Root_main = 1 Root_main_forward = 2 Root_main_server = 3 Root_main_close_socket = 4 Root_main_forward_forward = 5 Root_main_server_init = 6 Root_main_server_binding = 7 Root_main_server_listening = 8 Root_main_server_accepting = 9 Root_main_close_socket_close = 10 # Statechart enter/exit action method(s) def enter_Root_main(self): self.current_state[self.Root].append(self.Root_main) def exit_Root_main(self): self.exit_Root_main_forward() self.exit_Root_main_server() self.exit_Root_main_close_socket() self.current_state[self.Root] = [] def enter_Root_main_forward(self): self.current_state[self.Root_main].append(self.Root_main_forward) def exit_Root_main_forward(self): if self.Root_main_forward_forward in self.current_state[self.Root_main_forward]: self.exit_Root_main_forward_forward() self.current_state[self.Root_main] = [] def enter_Root_main_server(self): self.current_state[self.Root_main].append(self.Root_main_server) def exit_Root_main_server(self): if self.Root_main_server_init in self.current_state[self.Root_main_server]: self.exit_Root_main_server_init() if self.Root_main_server_binding in self.current_state[self.Root_main_server]: self.exit_Root_main_server_binding() if self.Root_main_server_listening in self.current_state[self.Root_main_server]: self.exit_Root_main_server_listening() if self.Root_main_server_accepting in self.current_state[self.Root_main_server]: self.exit_Root_main_server_accepting() self.current_state[self.Root_main] = [] def enter_Root_main_close_socket(self): self.current_state[self.Root_main].append(self.Root_main_close_socket) def exit_Root_main_close_socket(self): if self.Root_main_close_socket_close in self.current_state[self.Root_main_close_socket]: self.exit_Root_main_close_socket_close() self.current_state[self.Root_main] = [] def enter_Root_main_forward_forward(self): self.current_state[self.Root_main_forward].append(self.Root_main_forward_forward) def exit_Root_main_forward_forward(self): self.current_state[self.Root_main_forward] = [] def enter_Root_main_server_init(self): self.big_step.outputEvent(Event("create_socket", "socket_out", [])) self.current_state[self.Root_main_server].append(self.Root_main_server_init) def exit_Root_main_server_init(self): self.current_state[self.Root_main_server] = [] def enter_Root_main_server_binding(self): self.big_step.outputEvent(Event("bind_socket", "socket_out", [self.socket, (self.address, self.port)])) self.current_state[self.Root_main_server].append(self.Root_main_server_binding) def exit_Root_main_server_binding(self): self.current_state[self.Root_main_server] = [] def enter_Root_main_server_listening(self): self.big_step.outputEvent(Event("listen_socket", "socket_out", [self.socket])) self.current_state[self.Root_main_server].append(self.Root_main_server_listening) def exit_Root_main_server_listening(self): self.current_state[self.Root_main_server] = [] def enter_Root_main_server_accepting(self): self.timers[0] = 1.0 self.current_state[self.Root_main_server].append(self.Root_main_server_accepting) def exit_Root_main_server_accepting(self): self.timers.pop(0, None) self.current_state[self.Root_main_server] = [] def enter_Root_main_close_socket_close(self): self.current_state[self.Root_main_close_socket].append(self.Root_main_close_socket_close) def exit_Root_main_close_socket_close(self): self.current_state[self.Root_main_close_socket] = [] # Statechart enter/exit default method(s) def enterDefault_Root_main(self): self.enter_Root_main() self.enterDefault_Root_main_forward() self.enterDefault_Root_main_server() self.enterDefault_Root_main_close_socket() def enterDefault_Root_main_forward(self): self.enter_Root_main_forward() self.enter_Root_main_forward_forward() def enterDefault_Root_main_server(self): self.enter_Root_main_server() self.enter_Root_main_server_init() def enterDefault_Root_main_close_socket(self): self.enter_Root_main_close_socket() self.enter_Root_main_close_socket_close() # Statechart transitions def generateCandidatesChildren_Root(self): if self.current_state[self.Root][0] == self.Root_main: return self.generateCandidates_Root_main() return False def generateCandidates_Root(self): if not self.combo_step.isArenaChanged(self.Root): return self.generateCandidatesChildren_Root() else: return True def generateCandidatesChildren_Root_main(self): branch_done = False branch_done = (self.generateCandidates_Root_main_forward() or branch_done) branch_done = (self.generateCandidates_Root_main_server() or branch_done) branch_done = (self.generateCandidates_Root_main_close_socket() or branch_done) return branch_done def generateCandidates_Root_main(self): if not self.combo_step.isArenaChanged(self.Root_main): return self.generateCandidatesChildren_Root_main() else: return True def generateCandidatesChildren_Root_main_forward(self): if self.current_state[self.Root_main_forward][0] == self.Root_main_forward_forward: return self.generateCandidates_Root_main_forward_forward() return False def generateCandidates_Root_main_forward(self): if not self.combo_step.isArenaChanged(self.Root_main_forward): return self.generateCandidatesChildren_Root_main_forward() else: return True def generateCandidatesCurrent_Root_main_forward_forward(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if e.name == "HTTP_output": self.small_step.addCandidate(self.transition_Root_main_forward_forward_1, e.parameters) return True return False def generateCandidates_Root_main_forward_forward(self): if not self.combo_step.isArenaChanged(self.Root_main_forward_forward): return self.generateCandidatesCurrent_Root_main_forward_forward() else: return True def transition_Root_main_forward_forward_1(self, parameters): association_name = parameters[0] data = parameters[1] self.exit_Root_main_forward_forward() self.big_step.outputEventOM(Event("narrow_cast", None, [self, 'parent', Event("from_mvi", None, [association_name, data])])) self.combo_step.setArenaChanged(self.Root_main_forward) self.enter_Root_main_forward_forward() def generateCandidatesChildren_Root_main_server(self): if self.current_state[self.Root_main_server][0] == self.Root_main_server_init: return self.generateCandidates_Root_main_server_init() elif self.current_state[self.Root_main_server][0] == self.Root_main_server_binding: return self.generateCandidates_Root_main_server_binding() elif self.current_state[self.Root_main_server][0] == self.Root_main_server_listening: return self.generateCandidates_Root_main_server_listening() elif self.current_state[self.Root_main_server][0] == self.Root_main_server_accepting: return self.generateCandidates_Root_main_server_accepting() return False def generateCandidates_Root_main_server(self): if not self.combo_step.isArenaChanged(self.Root_main_server): return self.generateCandidatesChildren_Root_main_server() else: return True def generateCandidatesCurrent_Root_main_server_init(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if (e.name == "created_socket") and (e.port == "socket_in"): self.small_step.addCandidate(self.transition_Root_main_server_init_1, e.parameters) return True return False def generateCandidates_Root_main_server_init(self): if not self.combo_step.isArenaChanged(self.Root_main_server_init): return self.generateCandidatesCurrent_Root_main_server_init() else: return True def transition_Root_main_server_init_1(self, parameters): socket = parameters[0] self.exit_Root_main_server_init() self.socket = socket self.combo_step.setArenaChanged(self.Root_main_server) self.enter_Root_main_server_binding() def generateCandidatesCurrent_Root_main_server_binding(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if (e.name == "bound_socket") and (e.port == "socket_in"): parameters = e.parameters socket = parameters[0] if self.socket == socket: self.small_step.addCandidate(self.transition_Root_main_server_binding_1, e.parameters) return True return False def generateCandidates_Root_main_server_binding(self): if not self.combo_step.isArenaChanged(self.Root_main_server_binding): return self.generateCandidatesCurrent_Root_main_server_binding() else: return True def transition_Root_main_server_binding_1(self, parameters): socket = parameters[0] self.exit_Root_main_server_binding() self.combo_step.setArenaChanged(self.Root_main_server) self.enter_Root_main_server_listening() def generateCandidatesCurrent_Root_main_server_listening(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if (e.name == "listened_socket") and (e.port == "socket_in"): parameters = e.parameters socket = parameters[0] if self.socket == socket: self.small_step.addCandidate(self.transition_Root_main_server_listening_1, e.parameters) return True return False def generateCandidates_Root_main_server_listening(self): if not self.combo_step.isArenaChanged(self.Root_main_server_listening): return self.generateCandidatesCurrent_Root_main_server_listening() else: return True def transition_Root_main_server_listening_1(self, parameters): socket = parameters[0] self.exit_Root_main_server_listening() self.big_step.outputEvent(Event("accept_socket", "socket_out", [self.socket])) self.combo_step.setArenaChanged(self.Root_main_server) self.enter_Root_main_server_accepting() def generateCandidatesCurrent_Root_main_server_accepting(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if (e.name == "accepted_socket") and (e.port == "socket_in"): self.small_step.addCandidate(self.transition_Root_main_server_accepting_1, e.parameters) return True enabled_events = self.getEnabledEvents() for e in enabled_events: if e.name == "instance_created": self.small_step.addCandidate(self.transition_Root_main_server_accepting_2, e.parameters) return True enabled_events = self.getEnabledEvents() for e in enabled_events: if e.name == "_0after": self.small_step.addCandidate(self.transition_Root_main_server_accepting_3, e.parameters) return True return False def generateCandidates_Root_main_server_accepting(self): if not self.combo_step.isArenaChanged(self.Root_main_server_accepting): return self.generateCandidatesCurrent_Root_main_server_accepting() else: return True def transition_Root_main_server_accepting_1(self, parameters): socket = parameters[0] connected_socket = parameters[1] self.exit_Root_main_server_accepting() self.big_step.outputEventOM(Event("create_instance", None, [self, 'sockets', 'Socket', connected_socket])) self.big_step.outputEvent(Event("accept_socket", "socket_out", [self.socket])) self.combo_step.setArenaChanged(self.Root_main_server) self.enter_Root_main_server_accepting() def transition_Root_main_server_accepting_2(self, parameters): instancename = parameters[0] self.exit_Root_main_server_accepting() self.big_step.outputEventOM(Event("start_instance", None, [self, instancename])) self.big_step.outputEventOM(Event("narrow_cast", None, [self, instancename, Event("set_association_name", None, [instancename])])) self.combo_step.setArenaChanged(self.Root_main_server) self.enter_Root_main_server_accepting() def transition_Root_main_server_accepting_3(self, parameters): self.exit_Root_main_server_accepting() self.combo_step.setArenaChanged(self.Root_main_server) self.enter_Root_main_server_accepting() def generateCandidatesChildren_Root_main_close_socket(self): if self.current_state[self.Root_main_close_socket][0] == self.Root_main_close_socket_close: return self.generateCandidates_Root_main_close_socket_close() return False def generateCandidates_Root_main_close_socket(self): if not self.combo_step.isArenaChanged(self.Root_main_close_socket): return self.generateCandidatesChildren_Root_main_close_socket() else: return True def generateCandidatesCurrent_Root_main_close_socket_close(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if e.name == "close_socket": self.small_step.addCandidate(self.transition_Root_main_close_socket_close_1, e.parameters) return True return False def generateCandidates_Root_main_close_socket_close(self): if not self.combo_step.isArenaChanged(self.Root_main_close_socket_close): return self.generateCandidatesCurrent_Root_main_close_socket_close() else: return True def transition_Root_main_close_socket_close_1(self, parameters): association_name = parameters[0] self.exit_Root_main_close_socket_close() self.big_step.outputEventOM(Event("delete_instance", None, [self, association_name])) self.big_step.outputEventOM(Event("broad_cast", None, [Event("delete_socket", None, [association_name])])) self.combo_step.setArenaChanged(self.Root_main_close_socket) self.enter_Root_main_close_socket_close() # Generate transition candidates for current small step def generateCandidates(self): self.generateCandidates_Root() class Socket(RuntimeClassBase): def __init__(self, controller, my_socket): RuntimeClassBase.__init__(self, controller) self.semantics.big_step_maximality = StatechartSemantics.TakeMany self.semantics.internal_event_lifeline = StatechartSemantics.Queue self.semantics.input_event_lifeline = StatechartSemantics.FirstComboStep self.semantics.priority = StatechartSemantics.SourceParent self.semantics.concurrency = StatechartSemantics.Single # Call user defined constructor Socket.user_defined_constructor(self, my_socket) def user_defined_constructor(self, my_socket): self.socket = my_socket self.received_data = "" self.send_data = "" self.closed = False self.association_name = None def user_defined_destructor(self): pass def initializeStatechart(self): self.current_state[self.Root] = [] self.current_state[self.Root_connected] = [] self.current_state[self.Root_connected_listening] = [] self.current_state[self.Root_connected_sending] = [] self.current_state[self.Root_connected_queueing] = [] self.current_state[self.Root_connected_parsing] = [] # Enter default state self.enter_Root_init() # Unique IDs for all statechart nodes Root = 0 Root_connected = 1 Root_connected_listening = 2 Root_connected_sending = 3 Root_connected_queueing = 4 Root_connected_parsing = 5 Root_init = 6 Root_connected_listening_listen = 7 Root_connected_listening_closed = 8 Root_connected_sending_waiting_for_data = 9 Root_connected_sending_transferring = 10 Root_connected_queueing_queueing = 11 Root_connected_parsing_wait_for_header = 12 Root_connected_parsing_closing = 13 Root_connected_parsing_wait_for_payload = 14 Root_close = 15 # Statechart enter/exit action method(s) def enter_Root_connected(self): self.current_state[self.Root].append(self.Root_connected) def exit_Root_connected(self): self.exit_Root_connected_listening() self.exit_Root_connected_sending() self.exit_Root_connected_queueing() self.exit_Root_connected_parsing() self.current_state[self.Root] = [] def enter_Root_connected_listening(self): self.current_state[self.Root_connected].append(self.Root_connected_listening) def exit_Root_connected_listening(self): if self.Root_connected_listening_listen in self.current_state[self.Root_connected_listening]: self.exit_Root_connected_listening_listen() if self.Root_connected_listening_closed in self.current_state[self.Root_connected_listening]: self.exit_Root_connected_listening_closed() self.current_state[self.Root_connected] = [] def enter_Root_connected_sending(self): self.current_state[self.Root_connected].append(self.Root_connected_sending) def exit_Root_connected_sending(self): if self.Root_connected_sending_waiting_for_data in self.current_state[self.Root_connected_sending]: self.exit_Root_connected_sending_waiting_for_data() if self.Root_connected_sending_transferring in self.current_state[self.Root_connected_sending]: self.exit_Root_connected_sending_transferring() self.current_state[self.Root_connected] = [] def enter_Root_connected_queueing(self): self.current_state[self.Root_connected].append(self.Root_connected_queueing) def exit_Root_connected_queueing(self): if self.Root_connected_queueing_queueing in self.current_state[self.Root_connected_queueing]: self.exit_Root_connected_queueing_queueing() self.current_state[self.Root_connected] = [] def enter_Root_connected_parsing(self): self.current_state[self.Root_connected].append(self.Root_connected_parsing) def exit_Root_connected_parsing(self): if self.Root_connected_parsing_wait_for_header in self.current_state[self.Root_connected_parsing]: self.exit_Root_connected_parsing_wait_for_header() if self.Root_connected_parsing_closing in self.current_state[self.Root_connected_parsing]: self.exit_Root_connected_parsing_closing() if self.Root_connected_parsing_wait_for_payload in self.current_state[self.Root_connected_parsing]: self.exit_Root_connected_parsing_wait_for_payload() self.current_state[self.Root_connected] = [] def enter_Root_init(self): self.current_state[self.Root].append(self.Root_init) def exit_Root_init(self): self.current_state[self.Root] = [] def enter_Root_connected_listening_listen(self): self.big_step.outputEvent(Event("recv_socket", "socket_out", [self.socket])) self.current_state[self.Root_connected_listening].append(self.Root_connected_listening_listen) def exit_Root_connected_listening_listen(self): self.current_state[self.Root_connected_listening] = [] def enter_Root_connected_listening_closed(self): self.closed = True self.current_state[self.Root_connected_listening].append(self.Root_connected_listening_closed) def exit_Root_connected_listening_closed(self): self.current_state[self.Root_connected_listening] = [] def enter_Root_connected_sending_waiting_for_data(self): self.current_state[self.Root_connected_sending].append(self.Root_connected_sending_waiting_for_data) def exit_Root_connected_sending_waiting_for_data(self): self.current_state[self.Root_connected_sending] = [] def enter_Root_connected_sending_transferring(self): self.current_state[self.Root_connected_sending].append(self.Root_connected_sending_transferring) def exit_Root_connected_sending_transferring(self): self.current_state[self.Root_connected_sending] = [] def enter_Root_connected_queueing_queueing(self): self.current_state[self.Root_connected_queueing].append(self.Root_connected_queueing_queueing) def exit_Root_connected_queueing_queueing(self): self.current_state[self.Root_connected_queueing] = [] def enter_Root_connected_parsing_wait_for_header(self): self.current_state[self.Root_connected_parsing].append(self.Root_connected_parsing_wait_for_header) def exit_Root_connected_parsing_wait_for_header(self): self.current_state[self.Root_connected_parsing] = [] def enter_Root_connected_parsing_closing(self): self.timers[0] = 0.0 self.current_state[self.Root_connected_parsing].append(self.Root_connected_parsing_closing) def exit_Root_connected_parsing_closing(self): self.timers.pop(0, None) self.current_state[self.Root_connected_parsing] = [] def enter_Root_connected_parsing_wait_for_payload(self): self.current_state[self.Root_connected_parsing].append(self.Root_connected_parsing_wait_for_payload) def exit_Root_connected_parsing_wait_for_payload(self): self.current_state[self.Root_connected_parsing] = [] def enter_Root_close(self): self.big_step.outputEvent(Event("close_socket", "socket_out", [self.socket])) self.big_step.outputEventOM(Event("narrow_cast", None, [self, 'parent', Event("close_socket", None, [self.association_name])])) self.current_state[self.Root].append(self.Root_close) def exit_Root_close(self): self.current_state[self.Root] = [] # Statechart enter/exit default method(s) def enterDefault_Root_connected(self): self.enter_Root_connected() self.enterDefault_Root_connected_listening() self.enterDefault_Root_connected_sending() self.enterDefault_Root_connected_queueing() self.enterDefault_Root_connected_parsing() def enterDefault_Root_connected_listening(self): self.enter_Root_connected_listening() self.enter_Root_connected_listening_listen() def enterDefault_Root_connected_sending(self): self.enter_Root_connected_sending() self.enter_Root_connected_sending_waiting_for_data() def enterDefault_Root_connected_queueing(self): self.enter_Root_connected_queueing() self.enter_Root_connected_queueing_queueing() def enterDefault_Root_connected_parsing(self): self.enter_Root_connected_parsing() self.enter_Root_connected_parsing_wait_for_header() # Statechart transitions def generateCandidatesChildren_Root(self): if self.current_state[self.Root][0] == self.Root_init: return self.generateCandidates_Root_init() elif self.current_state[self.Root][0] == self.Root_connected: return self.generateCandidates_Root_connected() elif self.current_state[self.Root][0] == self.Root_close: return self.generateCandidates_Root_close() return False def generateCandidates_Root(self): if not self.combo_step.isArenaChanged(self.Root): return self.generateCandidatesChildren_Root() else: return True def generateCandidatesCurrent_Root_init(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if e.name == "set_association_name": self.small_step.addCandidate(self.transition_Root_init_1, e.parameters) return True return False def generateCandidates_Root_init(self): if not self.combo_step.isArenaChanged(self.Root_init): return self.generateCandidatesCurrent_Root_init() else: return True def transition_Root_init_1(self, parameters): association_name = parameters[0] self.exit_Root_init() self.association_name = association_name self.combo_step.setArenaChanged(self.Root) self.enterDefault_Root_connected() def generateCandidatesChildren_Root_connected(self): branch_done = False branch_done = (self.generateCandidates_Root_connected_listening() or branch_done) branch_done = (self.generateCandidates_Root_connected_sending() or branch_done) branch_done = (self.generateCandidates_Root_connected_queueing() or branch_done) branch_done = (self.generateCandidates_Root_connected_parsing() or branch_done) return branch_done def generateCandidatesCurrent_Root_connected(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if e.name == "close": self.small_step.addCandidate(self.transition_Root_connected_1, e.parameters) return True return False def generateCandidates_Root_connected(self): if not self.combo_step.isArenaChanged(self.Root_connected): branch_done = False if self.semantics.priority == StatechartSemantics.SourceParent: branch_done = self.generateCandidatesCurrent_Root_connected() if not branch_done: branch_done = self.generateCandidatesChildren_Root_connected() elif self.semantics.priority == StatechartSemantics.SourceChild: branch_done = self.generateCandidatesChildren_Root_connected() if not branch_done: branch_done = self.generateCandidatesCurrent_Root_connected() return branch_done else: return True def transition_Root_connected_1(self, parameters): self.exit_Root_connected() self.combo_step.setArenaChanged(self.Root) self.enter_Root_close() def generateCandidatesChildren_Root_connected_listening(self): if self.current_state[self.Root_connected_listening][0] == self.Root_connected_listening_listen: return self.generateCandidates_Root_connected_listening_listen() elif self.current_state[self.Root_connected_listening][0] == self.Root_connected_listening_closed: return self.generateCandidates_Root_connected_listening_closed() return False def generateCandidates_Root_connected_listening(self): if not self.combo_step.isArenaChanged(self.Root_connected_listening): return self.generateCandidatesChildren_Root_connected_listening() else: return True def generateCandidatesCurrent_Root_connected_listening_listen(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if (e.name == "received_socket") and (e.port == "socket_in"): parameters = e.parameters socket = parameters[0] data = parameters[1] if (self.socket == socket) and (len(data) > 0): self.small_step.addCandidate(self.transition_Root_connected_listening_listen_1, e.parameters) return True enabled_events = self.getEnabledEvents() for e in enabled_events: if (e.name == "received_socket") and (e.port == "socket_in"): parameters = e.parameters socket = parameters[0] data = parameters[1] if (self.socket == socket) and (len(data) == 0): self.small_step.addCandidate(self.transition_Root_connected_listening_listen_2, e.parameters) return True return False def generateCandidates_Root_connected_listening_listen(self): if not self.combo_step.isArenaChanged(self.Root_connected_listening_listen): return self.generateCandidatesCurrent_Root_connected_listening_listen() else: return True def transition_Root_connected_listening_listen_1(self, parameters): socket = parameters[0] data = parameters[1] self.exit_Root_connected_listening_listen() self.received_data += data self.raiseInternalEvent(Event("received_data", None, [])) self.combo_step.setArenaChanged(self.Root_connected_listening) self.enter_Root_connected_listening_listen() def transition_Root_connected_listening_listen_2(self, parameters): socket = parameters[0] data = parameters[1] self.exit_Root_connected_listening_listen() self.raiseInternalEvent(Event("received_data", None, [])) self.combo_step.setArenaChanged(self.Root_connected_listening) self.enter_Root_connected_listening_closed() def generateCandidates_Root_connected_listening_closed(self): return False def generateCandidatesChildren_Root_connected_sending(self): if self.current_state[self.Root_connected_sending][0] == self.Root_connected_sending_waiting_for_data: return self.generateCandidates_Root_connected_sending_waiting_for_data() elif self.current_state[self.Root_connected_sending][0] == self.Root_connected_sending_transferring: return self.generateCandidates_Root_connected_sending_transferring() return False def generateCandidates_Root_connected_sending(self): if not self.combo_step.isArenaChanged(self.Root_connected_sending): return self.generateCandidatesChildren_Root_connected_sending() else: return True def generateCandidatesCurrent_Root_connected_sending_waiting_for_data(self): enabled_events = self.getEnabledEvents() if len(self.send_data) > 0: self.small_step.addCandidate(self.transition_Root_connected_sending_waiting_for_data_1, []) return True return False def generateCandidates_Root_connected_sending_waiting_for_data(self): if not self.combo_step.isArenaChanged(self.Root_connected_sending_waiting_for_data): return self.generateCandidatesCurrent_Root_connected_sending_waiting_for_data() else: return True def transition_Root_connected_sending_waiting_for_data_1(self, parameters): self.exit_Root_connected_sending_waiting_for_data() self.big_step.outputEvent(Event("send_socket", "socket_out", [self.socket, self.send_data])) self.combo_step.setArenaChanged(self.Root_connected_sending) self.enter_Root_connected_sending_transferring() def generateCandidatesCurrent_Root_connected_sending_transferring(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if (e.name == "sent_socket") and (e.port == "socket_in"): parameters = e.parameters socket = parameters[0] sent_bytes = parameters[1] if self.socket == socket: self.small_step.addCandidate(self.transition_Root_connected_sending_transferring_1, e.parameters) return True return False def generateCandidates_Root_connected_sending_transferring(self): if not self.combo_step.isArenaChanged(self.Root_connected_sending_transferring): return self.generateCandidatesCurrent_Root_connected_sending_transferring() else: return True def transition_Root_connected_sending_transferring_1(self, parameters): socket = parameters[0] sent_bytes = parameters[1] self.exit_Root_connected_sending_transferring() self.send_data = self.send_data[sent_bytes:] self.combo_step.setArenaChanged(self.Root_connected_sending) self.enter_Root_connected_sending_waiting_for_data() def generateCandidatesChildren_Root_connected_queueing(self): if self.current_state[self.Root_connected_queueing][0] == self.Root_connected_queueing_queueing: return self.generateCandidates_Root_connected_queueing_queueing() return False def generateCandidates_Root_connected_queueing(self): if not self.combo_step.isArenaChanged(self.Root_connected_queueing): return self.generateCandidatesChildren_Root_connected_queueing() else: return True def generateCandidatesCurrent_Root_connected_queueing_queueing(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if e.name == "HTTP_input": self.small_step.addCandidate(self.transition_Root_connected_queueing_queueing_1, e.parameters) return True return False def generateCandidates_Root_connected_queueing_queueing(self): if not self.combo_step.isArenaChanged(self.Root_connected_queueing_queueing): return self.generateCandidatesCurrent_Root_connected_queueing_queueing() else: return True def transition_Root_connected_queueing_queueing_1(self, parameters): data = parameters[0] self.exit_Root_connected_queueing_queueing() #post_data = "&".join(["%s=%s" % (urllib.quote(k), urllib.quote(v)) for k, v in data.iteritems()]) post_data = "&".join(["%s=%s" % (k, v) for k, v in data.iteritems()]) self.send_data += "HTTP/1.0 200 OK\r\n" self.send_data += "Content-Length: %s\r\n" % len(post_data) self.send_data += "Content-Type: %s; charset=UTF-8\r\n" % "text/plain" self.send_data += "\r\n" self.send_data += str(post_data) self.combo_step.setArenaChanged(self.Root_connected_queueing) self.enter_Root_connected_queueing_queueing() def generateCandidatesChildren_Root_connected_parsing(self): if self.current_state[self.Root_connected_parsing][0] == self.Root_connected_parsing_wait_for_header: return self.generateCandidates_Root_connected_parsing_wait_for_header() elif self.current_state[self.Root_connected_parsing][0] == self.Root_connected_parsing_closing: return self.generateCandidates_Root_connected_parsing_closing() elif self.current_state[self.Root_connected_parsing][0] == self.Root_connected_parsing_wait_for_payload: return self.generateCandidates_Root_connected_parsing_wait_for_payload() return False def generateCandidates_Root_connected_parsing(self): if not self.combo_step.isArenaChanged(self.Root_connected_parsing): return self.generateCandidatesChildren_Root_connected_parsing() else: return True def generateCandidatesCurrent_Root_connected_parsing_wait_for_header(self): enabled_events = self.getEnabledEvents() if '\r\n\r\n' in self.received_data and self.received_data.startswith('POST'): self.small_step.addCandidate(self.transition_Root_connected_parsing_wait_for_header_1, []) return True enabled_events = self.getEnabledEvents() if self.closed and len(self.received_data) == 0: self.small_step.addCandidate(self.transition_Root_connected_parsing_wait_for_header_2, []) return True return False def generateCandidates_Root_connected_parsing_wait_for_header(self): if not self.combo_step.isArenaChanged(self.Root_connected_parsing_wait_for_header): return self.generateCandidatesCurrent_Root_connected_parsing_wait_for_header() else: return True def transition_Root_connected_parsing_wait_for_header_1(self, parameters): self.exit_Root_connected_parsing_wait_for_header() header, self.received_data = self.received_data.split("\r\n\r\n", 1) header = header.lower() if "content-length" in header: _, after = header.split("content-length:", 1) after = after.split("\r\n", 1)[0] after = after.strip() self.length = int(after) else: self.length = float('inf') self.combo_step.setArenaChanged(self.Root_connected_parsing) self.enter_Root_connected_parsing_wait_for_payload() def transition_Root_connected_parsing_wait_for_header_2(self, parameters): self.exit_Root_connected_parsing_wait_for_header() self.combo_step.setArenaChanged(self.Root_connected_parsing) self.enter_Root_connected_parsing_closing() def generateCandidatesCurrent_Root_connected_parsing_closing(self): enabled_events = self.getEnabledEvents() for e in enabled_events: if e.name == "_0after": self.small_step.addCandidate(self.transition_Root_connected_parsing_closing_1, e.parameters) return True return False def generateCandidates_Root_connected_parsing_closing(self): if not self.combo_step.isArenaChanged(self.Root_connected_parsing_closing): return self.generateCandidatesCurrent_Root_connected_parsing_closing() else: return True def transition_Root_connected_parsing_closing_1(self, parameters): self.exit_Root_connected_parsing_closing() self.raiseInternalEvent(Event("close", None, [])) self.combo_step.setArenaChanged(self.Root_connected_parsing) self.enter_Root_connected_parsing_closing() def generateCandidatesCurrent_Root_connected_parsing_wait_for_payload(self): enabled_events = self.getEnabledEvents() if len(self.received_data) >= self.length or self.closed: self.small_step.addCandidate(self.transition_Root_connected_parsing_wait_for_payload_1, []) return True return False def generateCandidates_Root_connected_parsing_wait_for_payload(self): if not self.combo_step.isArenaChanged(self.Root_connected_parsing_wait_for_payload): return self.generateCandidatesCurrent_Root_connected_parsing_wait_for_payload() else: return True def transition_Root_connected_parsing_wait_for_payload_1(self, parameters): self.exit_Root_connected_parsing_wait_for_payload() if self.length == float('inf'): data = self.received_data self.received_data = "" else: data = self.received_data[:self.length] self.received_data = self.received_data[self.length:] # We support POST data only, so everything is in the data try: params = dict([p.split('=') for p in data.split('&')]) data = {k: urllib.unquote_plus(v) for k, v in params.iteritems()} except: data = {} self.big_step.outputEventOM(Event("narrow_cast", None, [self, 'parent', Event("HTTP_output", None, [self.association_name, data])])) self.combo_step.setArenaChanged(self.Root_connected_parsing) self.enter_Root_connected_parsing_wait_for_header() def generateCandidates_Root_close(self): return False # Generate transition candidates for current small step def generateCandidates(self): self.generateCandidates_Root() class ObjectManager(ObjectManagerBase): def __init__(self, controller): ObjectManagerBase.__init__(self, controller) def instantiate(self, class_name, construct_params): if class_name == "MvKController": instance = MvKController(self.controller, construct_params[0]) instance.associations = {} instance.associations["to_mvi"] = Association("Server", 1, 1) elif class_name == "Server": instance = Server(self.controller, construct_params[0], construct_params[1]) instance.associations = {} instance.associations["sockets"] = Association("Socket", 0, -1) instance.associations["parent"] = Association("MvKController", 1, 1) elif class_name == "Socket": instance = Socket(self.controller, construct_params[0]) instance.associations = {} instance.associations["parent"] = Association("Server", 1, 1) return instance class Controller(ThreadsControllerBase): def __init__(self, params, keep_running = None): if keep_running == None: keep_running = True ThreadsControllerBase.__init__(self, ObjectManager(self), keep_running) self.addInputPort("socket_in") self.addOutputPort("socket_out") self.object_manager.createInstance("MvKController", [params])