def addCustomConverter(self, converter):
""" Register a new custom Converter.
@raise: rce.error.InternalError,
rce.util.interfaces.InterfaceError
"""
verifyClass(IROSConverter, converter)
if converter.MESSAGE_TYPE in self._customTypes:
raise InternalError('There are multiple Converters given for '
'message type "{0}".'.format(
converter.MESSAGE_TYPE))
try:
pkg, name = package_resource_name(converter.MESSAGE_TYPE)
except ValueError:
raise InternalError('msg type is not valid. Has to be of the from '
'pkg/msg, i.e. std_msgs/Int8.')
self._customTypes[converter.MESSAGE_TYPE] = (converter,
self._loader.loadMsg(pkg, name))
def addCustomConverter(self, converter):
""" Register a new custom Converter.
@raise: rce.error.InternalError,
rce.util.interfaces.InterfaceError
"""
verifyClass(ICustomROSConverter, converter)
if converter.MESSAGE_TYPE in self._customTypes:
raise InternalError('There are multiple Converters given for '
'message type "{0}".'.format(
converter.MESSAGE_TYPE))
try:
pkg, name = package_resource_name(converter.MESSAGE_TYPE)
except ValueError:
raise InternalError('msg type is not valid. Has to be of the from '
'pkg/msg, i.e. std_msgs/Int8.')
self._customTypes[converter.MESSAGE_TYPE] = (converter,
self._loader.loadMsg(pkg, name))
return Time.from_sec(time.mktime(dt.timetuple()))
def encode(self, rosMsg):
""" Transform the rospy.rostime.Time instance to a string of the form
'YYYY-MM-DDTHH:MM:SS.mmmmmm' (ISO 8601).
"""
try:
dt = datetime.fromtimestamp(rosMsg.to_sec())
except AttributeError:
raise TypeError('Received object is not a Time instance.')
return (dt.isoformat(), {})
# Check custom time classes whether the interface is correctly implemented
verifyClass(ICustomROSConverter, _DurationConverter)
verifyClass(ICustomROSConverter, _TimeConverter)
class Converter(object):
""" This class is used to provide a possibility to convert a ROS message to
a JSON compatible format and back.
To add customized Converters use the method 'addCustomConverter' and
the class must implement the interface 'IROSConverter'.
As an example view the class ImageConverter.
"""
_BASE_TYPES = { 'bool' : bool,
'byte' : int,
'char' : int,
'uint8' : int,
return Time.from_sec(time.mktime(dt.timetuple()))
def encode(self, rosMsg):
""" Transform the rospy.rostime.Time instance to a string of the form
'YYYY-MM-DDTHH:MM:SS.mmmmmm' (ISO 8601).
"""
try:
dt = datetime.fromtimestamp(rosMsg.to_sec())
except AttributeError:
raise TypeError('Received object is not a Time instance.')
return (dt.isoformat(), {})
# Check custom time classes whether the interface is correctly implemented
verifyClass(ICustomROSConverter, _DurationConverter)
verifyClass(ICustomROSConverter, _TimeConverter)
class Converter(object):
""" This class is used to provide a possibility to convert a ROS message to
a JSON compatible format and back.
To add customized Converters use the method 'addCustomConverter' and
the class must implement the interface 'IROSConverter'.
As an example view the class ImageConverter.
"""
_BASE_TYPES = { 'bool' : bool,
'byte' : int,
'char' : int,
'uint8' : int,
