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exceptions.py
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exceptions.py
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# Software License Agreement (BSD License)
#
# Copyright (c) 2008, Willow Garage, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of Willow Garage, Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# Revision $Id$
"""rospy exception types"""
class ROSException(Exception):
"""
Base exception class for ROS clients
"""
pass
class ROSSerializationException(ROSException):
"""
Exception for message serialization errors
"""
pass
class ROSInitException(ROSException):
"""
Exception for errors initializing ROS state
"""
pass
class ROSInterruptException(ROSException, KeyboardInterrupt):
"""
Exception for operations that interrupted, e.g. due to shutdown.
This is a subclass of both L{ROSException} and KeyboardInterrupt
so that it can be used in logic tht expects either.
"""
pass
class ROSTimeMovedBackwardsException(ROSInterruptException):
"""
Exception if time moved backwards
"""
def __init__(self, time):
self.time = time
"""The amount of time in seconds."""
super(ROSTimeMovedBackwardsException, self).__init__("ROS time moved backwards")
class ROSInternalException(Exception):
"""
Base class for exceptions that are internal to the ROS system
"""
pass
class TransportException(ROSInternalException):
"""
Base class for transport-related exceptions
"""
pass
class TransportTerminated(TransportException):
"""
Internal class for representing broken connections
"""
pass
class TransportInitError(TransportException):
"""
Internal exception for representing exceptions that occur
establishing transports
"""
pass