def InitNetwork(self):
"""
Launch network event loop.
"""
self.factory = SolipsisUiFactory(self)
self.listener = self.reactor.listenTCP(self.local_port, self.factory)
self.network_loop = NetworkLoop(self.reactor, self, self.testing)
print "listening on port", self.local_port
BaseNavigatorApp.InitNetwork(self)
class NavigatorApp(BaseNavigatorApp):
"""specific class to launch a simple non-graphic navigator"""
def __init__(self, params, *args, **kargs):
"""available kargs: port"""
BaseNavigatorApp.__init__(self, params, *args, **kargs)
self.config_data = ConfigData(self.params)
self.waiting = True
self.waiting_deferred = None
self.initialised = False
self.factory = None
self.listener = None
self.OnInit()
def OnInit(self):
"""
Main initialization handler.
"""
BaseNavigatorApp.OnInit(self)
self.InitTwisted()
self.InitNetwork()
def InitResources(self):
"""Create world"""
self.viewport = Viewport()
self.world = BaseWorld(self.viewport)
def InitNetwork(self):
"""
Launch network event loop.
"""
self.factory = SolipsisUiFactory(self)
self.listener = self.reactor.listenTCP(self.local_port,
self.factory)
self.network_loop = NetworkLoop(self.reactor, self, self.testing)
print "listening on port", self.local_port
BaseNavigatorApp.InitNetwork(self)
def InitServices(self):
"""
Initialize all services.
"""
assert self.config_data, "config must be initialised first"
self.services = ServiceCollector(self.params, self.local_ip,
self.reactor, self)
if self.config_data.used_services:
for service in self.config_data.used_services:
service_path = self.services._ServiceDirectory(service)
service_id, plugin = self.services.LoadService(service_path,
service)
self.services.InitService(service_id, plugin)
self.services.SetNode(self.config_data.GetNode())
self.services.EnableServices()
self.config_data.SetServices(self.services.GetServices())
else:
BaseNavigatorApp.InitServices(self)
# flag end of initialisation
self.initialised = True
for deferred in self.factory.initialised:
deferred.callback(True)
def startListening(self):
self.network_loop.start()
def stopListening(self):
pass
def get_position(self, name=None):
if self._CheckNodeProxy():
if not name:
name = self.world.node_id
if name is not None:
return self.world.viewport.GetObjectPosition(name)
else:
return "No node"
else:
return "Not connected"
def get_peers_by_service(self, service=None):
if self._CheckNodeProxy():
if service is None:
return self.world.items.keys()
else:
return [peer.id_
for peer in self.world.GetAllPeers()
if not peer.GetService(service) is None]
else:
return "Not connected"
def get_action(self, peer_id=None):
if not self._CheckNodeProxy():
return "Not connected"
return self.services.GetActions(peer_id)
def do_wait(self, deferred):
self.waiting_deferred = deferred
#
# Helpers
#
def future_call(self, delay, function):
"""call function after delay (milli sec)"""
threading.Timer(delay/1000, function).start()
def display_message(self, msg, title=None):
"""Display message to user, using for instance a dialog"""
return title and "%s: %s"% (title, msg) or msg
def display_error(self, msg, title=None, error=None, trace=None):
"""Report error to user"""
msg == title and "%s: %s"% (title, msg) or msg
print >> sys.stderr, msg
def display_warning(self, msg, title=None):
"""Report error to user"""
print msg == title and "%s: %s"% (title, msg) or msg
def display_status(self, msg):
"""report a status"""
print msg
def _DestroyProgress(self):
"""
Destroy progress dialog if necessary.
"""
pass
def _SetWaiting(self, waiting):
"""
Set "waiting" state of the interface.
"""
self.waiting = waiting
if not waiting and not self.waiting_deferred is None:
self.waiting_deferred.callback("ok")
self.waiting_deferred = None
def _OnQuit(self):
self.stopListening()
BaseNavigatorApp._OnQuit(self)
#===-----------------------------------------------------------------===#
# Actions from the network thread(s)
#
def NodeConnectionFailed(self, error):
"""
Failed connecting to the node.
"""
if self.connection_trials > 0:
self.connection_trials -= 1
self.future_call(3000, self._TryConnect)
else:
BaseNavigatorApp.NodeConnectionFailed(self, error)
