def _connect(self, rocon_master_name="", ros_master_uri="http://localhost:11311", host_name='localhost'):
# remocon name would be good as a persistant configuration variable by the user
# so they can set something like 'Bob'.
remocon_name = 'rqt_remocon'
unique_name = remocon_name + "_" + self.key.hex
# uri is obtained from the user, stored in ros_master_uri
os.environ["ROS_MASTER_URI"] = ros_master_uri
os.environ["ROS_HOSTNAME"] = host_name
print "[remocon_info] connect RemoconInfo "
print "[remocon_info] ROS_MASTER_URI: " + str(os.environ["ROS_MASTER_URI"])
print "[remocon_info] Node Name: " + str(unique_name)
# Need to make sure we give it a unique node name and we need a unique uuid
# for the remocon-role manager interaction anyway:
rospy.init_node(unique_name, disable_signals=True)
try:
rocon_master_info_topic_name = rocon_python_comms.find_topic('rocon_std_msgs/MasterInfo', timeout=rospy.rostime.Duration(5.0), unique=True)
get_interactions_service_name = rocon_python_comms.find_service('rocon_interaction_msgs/GetInteractions', timeout=rospy.rostime.Duration(5.0), unique=True)
request_interaction_service_name = rocon_python_comms.find_service('rocon_interaction_msgs/RequestInteraction', timeout=rospy.rostime.Duration(5.0), unique=True)
except rocon_python_comms.NotFoundException as e:
console.logerror("RemoconInfo : failed to find either rocon master info or interactions topics and services' [%s]" % str(e))
return False
self.info_sub = rospy.Subscriber(rocon_master_info_topic_name, rocon_std_msgs.MasterInfo, self._info_callback)
self.get_interactions_service_proxy = rospy.ServiceProxy(get_interactions_service_name, rocon_interaction_srvs.GetInteractions)
self.request_interaction_service_proxy = rospy.ServiceProxy(request_interaction_service_name, rocon_interaction_srvs.RequestInteraction)
self.remocon_status_pub = rospy.Publisher("remocons/" + unique_name, rocon_interaction_msgs.RemoconStatus, latch=True)
self._pub_remocon_status(0, False)
self.is_connect = True
self.is_valid_info = False
return True
def _init_ros_service(self):
try:
enable_service = rocon_python_comms.find_service('concert_msgs/EnableService', timeout=rospy.rostime.Duration(5.0), unique=True)
self.ros_services['enable_service'] = rospy.ServiceProxy(enable_service, EnableService)
update_service_config = rocon_python_comms.find_service('concert_msgs/UpdateServiceConfig', timeout=rospy.rostime.Duration(5.0), unique=True)
self.ros_services['update_service_config'] = rospy.ServiceProxy(update_service_config, UpdateServiceConfig)
except NotFoundException as e:
raise e
def _get_namespaces(self):
"""
Getting the name space with running the rapp
@return name space list
@type list
"""
get_rapp_list_service_names = rocon_python_comms.find_service('rocon_app_manager_msgs/GetRappList', timeout=rospy.rostime.Duration(5.0), unique=False)
return get_rapp_list_service_names
def __init__(self):
"""
Search for handle of concert software farm and get ready to serve high level system's requests
"""
software_farm_srv_name = rocon_python_comms.find_service(
'concert_msgs/AllocateSoftware',
timeout=rospy.rostime.Duration(5.0),
unique=True)
self._software_farm_srv = rospy.ServiceProxy(
software_farm_srv_name, concert_srvs.AllocateSoftware)
self._allocated_softwares = []
rospy.on_shutdown(self._shutdown)
def _setup_rapp_manager_connections(self):
try:
start_rapp_service_name = rocon_python_comms.find_service('rocon_app_manager_msgs/StartRapp', timeout=rospy.rostime.Duration(60.0), unique=True)
stop_rapp_service_name = rocon_python_comms.find_service('rocon_app_manager_msgs/StopRapp', timeout=rospy.rostime.Duration(60.0), unique=True)
status_topic_name = rocon_python_comms.find_topic('rocon_app_manager_msgs/Status', timeout=rospy.rostime.Duration(60.0), unique=True)
except rocon_python_comms.NotFoundException as e:
rospy.logerr("Interactions : timed out trying to find the rapp manager start_rapp, stop_rapp services and status topic [%s]" % str(e))
self.start_rapp = rospy.ServiceProxy(start_rapp_service_name, rocon_app_manager_srvs.StartRapp)
self.stop_rapp = rospy.ServiceProxy(stop_rapp_service_name, rocon_app_manager_srvs.StopRapp)
self.status_subscriber = rospy.Subscriber(status_topic_name, rocon_app_manager_msgs.Status, self._ros_status_subscriber)
try:
self.start_rapp.wait_for_service(15.0)
self.stop_rapp.wait_for_service(15.0)
# I should also check the subscriber has get_num_connections > 0 here
# (need to create a wait_for_publisher in rocon_python_comms)
self.initialised = True
rospy.loginfo("Interactions : initialised rapp handler connections for pairing.")
except rospy.ROSException:
rospy.logerr("Interactions : rapp manager services disappeared.")
except rospy.ROSInterruptException:
rospy.logerr("Interactions : ros shutdown while looking for the rapp manager services.")
def __init__(self):
'''
Don't do any loading here, just set up infrastructure and overrides from
the solution.
:raises: rocon_python_comms.NotFoundException, rospy.exceptions.ROSException,
rospy.exceptions.ROSInterruptException
'''
try:
service_name = rocon_python_comms.find_service('rocon_interaction_msgs/SetInteractions',
timeout=rospy.rostime.Duration(15.0),
unique=True)
except rocon_python_comms.NotFoundException as e:
raise rocon_python_comms.NotFoundException(
"failed to find unique service of type 'rocon_interaction_msgs/SetInteractions' [%s]"
% str(e))
self._set_interactions_proxy = rospy.ServiceProxy(service_name, interaction_srvs.SetInteractions)
def __init__(self):
'''
Don't do any loading here, just set up infrastructure and overrides from
the solution.
:raises: rocon_python_comms.NotFoundException, rospy.exceptions.ROSException,
rospy.exceptions.ROSInterruptException
'''
try:
service_name = rocon_python_comms.find_service('rocon_interaction_msgs/SetInteractions',
timeout=rospy.rostime.Duration(15.0),
unique=True)
except rocon_python_comms.NotFoundException as e:
raise rocon_python_comms.NotFoundException(
"failed to find unique service of type 'rocon_interaction_msgs/SetInteractions' [%s]"
% str(e))
self._set_interactions_proxy = rospy.ServiceProxy(service_name, interaction_srvs.SetInteractions)
def run(self):
# TODO : replace with a connection cache proxy instead of find_service
while not self.shutdown_requested:
start_time = None
timeout = 0.5
timout_sequence_count = 0
try:
start_time = rospy.get_time()
service_names = rocon_python_comms.find_service(
'rocon_interaction_msgs/GetInteractions',
timeout=rospy.rostime.Duration(timeout),
unique=False)
self.namespaces = [
rosgraph.names.namespace(service_name)
for service_name in service_names
]
console.logdebug(
"NamespaceScanner : interactions service found -> signaling the remocon."
)
self.signal_updated.emit()
break
except rocon_python_comms.NotFoundException:
# unfortunately find_service doesn't distinguish between timed out
# and not found because ros master is not up yet
#
# also, ros might not be up yet (this gets started before we get into rqt and
# it is rqt that is responsible for firing rospy.init_node).
#
# In this case, is_shutdown is still, false (because we didn't start yet) and
# we get here immediately (i.e. before the timeout triggers).
#
# So....poor man's way of checking rospy.is_shutdown() without having rospy.init_node around
if (rospy.get_time() - start_time) < timeout:
# can happen the first time it finds the service within the timeout
# so check for multiple occurences
timout_sequence_count += 1
if timout_sequence_count > 3:
rospy.logdebug(
"NamespaceScanner : ros master probably down, breaking out."
)
# game over at this point, the rqt plugin will have to be restarted
# so as to catch a new master
break
def _connect(self,
rocon_master_name="",
ros_master_uri="http://localhost:11311",
host_name='localhost'):
# uri is obtained from the user, stored in ros_master_uri
os.environ["ROS_MASTER_URI"] = ros_master_uri
os.environ["ROS_HOSTNAME"] = host_name
self._ros_master_port = urlparse(os.environ["ROS_MASTER_URI"]).port
console.logdebug("Interactive Client : Connection Details")
console.logdebug("Interactive Client : Node Name: " + self.name)
console.logdebug("Interactive Client : ROS_MASTER_URI: " +
ros_master_uri)
console.logdebug("Interactive Client : ROS_HOSTNAME: " + host_name)
console.logdebug("Interactive Client : ROS_MASTER_PORT: %s" %
self._ros_master_port)
# Need to make sure we give init a unique node name and we need a unique uuid
# for the remocon-role manager interaction anyway:
rospy.init_node(self.name, disable_signals=True)
try:
get_interactions_service_name = rocon_python_comms.find_service(
'rocon_interaction_msgs/GetInteractions',
timeout=rospy.rostime.Duration(5.0),
unique=True)
get_roles_service_name = rocon_python_comms.find_service(
'rocon_interaction_msgs/GetRoles',
timeout=rospy.rostime.Duration(5.0),
unique=True)
request_interaction_service_name = rocon_python_comms.find_service(
'rocon_interaction_msgs/RequestInteraction',
timeout=rospy.rostime.Duration(5.0),
unique=True)
except rocon_python_comms.NotFoundException as e:
message = "failed to find all of the interactions' publications and services [%s]" % str(
e)
console.logerror("InteractiveClient : %s" % message)
return (False, message)
self.get_interactions_service_proxy = rospy.ServiceProxy(
get_interactions_service_name,
rocon_interaction_srvs.GetInteractions)
self.get_roles_service_proxy = rospy.ServiceProxy(
get_roles_service_name, rocon_interaction_srvs.GetRoles)
self.request_interaction_service_proxy = rospy.ServiceProxy(
request_interaction_service_name,
rocon_interaction_srvs.RequestInteraction)
self.remocon_status_pub = rospy.Publisher(
"remocons/" + self.name,
rocon_interaction_msgs.RemoconStatus,
latch=True,
queue_size=10)
try:
# if its available, should be quick to find this one since we found the others...
pairing_topic_name = rocon_python_comms.find_topic(
'rocon_interaction_msgs/Pair',
timeout=rospy.rostime.Duration(0.5),
unique=True)
self.pairing_status_subscriber = rospy.Subscriber(
pairing_topic_name, rocon_interaction_msgs.Pair,
self._subscribe_pairing_status_callback)
except rocon_python_comms.NotFoundException as e:
console.logdebug(
"Interactive Client : support for paired interactions disabled [not found]"
)
self._publish_remocon_status()
self.is_connect = True
return (True, "success")