class AddTwoInts(object):
def __init__(self):
self._add_two_ints = AddTwoIntsWrapper()
def _to_cpp(self, msg):
"""Return a serialized string from a ROS message
Parameters
----------
- msg: a ROS message instance.
"""
buf = StringIO()
msg.serialize(buf)
return buf.getvalue()
def _from_cpp(self, str_msg, cls):
"""Return a ROS message from a serialized string
Parameters
----------
- str_msg: str, serialized message
- cls: ROS message class, e.g. sensor_msgs.msg.LaserScan.
"""
msg = cls()
return msg.deserialize(str_msg)
def add(self, a, b):
"""Add two std_mgs/Int64 messages
Return a std_msgs/Int64 instance.
Parameters
----------
- a: a std_msgs/Int64 instance.
- b: a std_msgs/Int64 instance.
"""
if not isinstance(a, Int64):
rospy.ROSException('Argument 1 is not a std_msgs/Int64')
if not isinstance(b, Int64):
rospy.ROSException('Argument 2 is not a std_msgs/Int64')
str_a = self._to_cpp(a)
str_b = self._to_cpp(b)
str_sum = self._add_two_ints.add(str_a, str_b)
return self._from_cpp(str_sum, Int64)
class AddTwoInts(object):
def __init__(self):
self._add_two_ints = AddTwoIntsWrapper()
def _to_cpp(self, msg):
"""Return a serialized string from a ROS message
Parameters
----------
- msg: a ROS message instance.
"""
buf = StringIO()
msg.serialize(buf)
return buf.getvalue()
def _from_cpp(self, str_msg, cls):
"""Return a ROS message from a serialized string
Parameters
----------
- str_msg: str, serialized message
- cls: ROS message class, e.g. sensor_msgs.msg.LaserScan.
"""
msg = cls()
return msg.deserialize(str_msg)
def add(self, a, b):
"""Add two std_mgs/Int64 messages
Return a std_msgs/Int64 instance.
Parameters
----------
- a: a std_msgs/Int64 instance.
- b: a std_msgs/Int64 instance.
"""
if not isinstance(a, Int64):
rospy.ROSException('Argument 1 is not a std_msgs/Int64')
if not isinstance(b, Int64):
rospy.ROSException('Argument 2 is not a std_msgs/Int64')
str_a = self._to_cpp(a)
str_b = self._to_cpp(b)
str_sum = self._add_two_ints.add(str_a, str_b)
return self._from_cpp(str_sum, Int64)
def __init__(self):
self._add_two_ints = AddTwoIntsWrapper()
def __init__(self):
self._add_two_ints = AddTwoIntsWrapper()
