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# Copyright 2013-2015 ARM Limited
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from wlauto.utils.misc import get_traceback, TimeoutError # NOQA pylint: disable=W0611
class WAError(Exception):
"""Base class for all Workload Automation exceptions."""
pass
class NotFoundError(WAError):
"""Raised when the specified item is not found."""
pass
class ValidationError(WAError):
"""Raised on failure to validate an extension."""
pass
class DeviceError(WAError):
"""General Device error."""
pass
class DeviceNotRespondingError(WAError):
"""The device is not responding."""
def __init__(self, device):
super(DeviceNotRespondingError, self).__init__('Device {} is not responding.'.format(device))
class WorkloadError(WAError):
"""General Workload error."""
pass
class HostError(WAError):
"""Problem with the host on which WA is running."""
pass
class ModuleError(WAError):
"""
Problem with a module.
.. note:: Modules for specific extension types should raise execeptions
appropriate to that extension. E.g. a ``Device`` module should raise
``DeviceError``. This is intended for situation where a module is
unsure (and/or doesn't care) what its owner is.
"""
pass
class InstrumentError(WAError):
"""General Instrument error."""
pass
class ResultProcessorError(WAError):
"""General ResultProcessor error."""
pass
class ResourceError(WAError):
"""General Resolver error."""
pass
class CommandError(WAError):
"""Raised by commands when they have encountered an error condition
during execution."""
pass
class ToolError(WAError):
"""Raised by tools when they have encountered an error condition
during execution."""
pass
class LoaderError(WAError):
"""Raised when there is an error loading an extension or
an external resource. Apart form the usual message, the __init__
takes an exc_info parameter which should be the result of
sys.exc_info() for the original exception (if any) that
caused the error."""
def __init__(self, message, exc_info=None):
super(LoaderError, self).__init__(message)
self.exc_info = exc_info
def __str__(self):
if self.exc_info:
orig = self.exc_info[1]
orig_name = type(orig).__name__
if isinstance(orig, WAError):
reason = 'because of:\n{}: {}'.format(orig_name, orig)
else:
reason = 'because of:\n{}\n{}: {}'.format(get_traceback(self.exc_info), orig_name, orig)
return '\n'.join([self.message, reason])
else:
return self.message
class ConfigError(WAError):
"""Raised when configuration provided is invalid. This error suggests that
the user should modify their config and try again."""
pass
class WorkerThreadError(WAError):
"""
This should get raised in the main thread if a non-WAError-derived exception occurs on
a worker/background thread. If a WAError-derived exception is raised in the worker, then
it that exception should be re-raised on the main thread directly -- the main point of this is
to preserve the backtrace in the output, and backtrace doesn't get output for WAErrors.
"""
def __init__(self, thread, exc_info):
self.thread = thread
self.exc_info = exc_info
orig = self.exc_info[1]
orig_name = type(orig).__name__
message = 'Exception of type {} occured on thread {}:\n'.format(orig_name, thread)
message += '{}\n{}: {}'.format(get_traceback(self.exc_info), orig_name, orig)
super(WorkerThreadError, self).__init__(message)
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