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Stavros Sachtouris authored
Replace calls of the form unicode(v) to the equivalent" '%s' % v
a517ff50
errors.py 4.75 KiB
# Copyright 2011 GRNET S.A. All rights reserved.
#
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# without modification, are permitted provided that the following
# conditions are met:
#
# 1. Redistributions of source code must retain the above
# copyright notice, this list of conditions and the following
# disclaimer.
#
# 2. 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.
#
# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``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 GRNET S.A 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.
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import logging
sendlog = logging.getLogger('clients.send')
recvlog = logging.getLogger('clients.recv')
class CLIError(Exception):
def __init__(self, message, details=[], importance=0):
"""
@message is the main message of the Error
@detauls is a list of previous errors
@importance of the output for the user
Suggested values: 0, 1, 2, 3
"""
message += '' if message and message[-1] == '\n' else '\n'
super(CLIError, self).__init__(message)
self.details = list(details) if isinstance(details, list)\
else [] if details is None else ['%s' % details]
try:
self.importance = int(importance)
except ValueError:
self.importance = 0
class CLISyntaxError(CLIError):
def __init__(self, message='Syntax Error', details=[], importance=1):
super(CLISyntaxError, self).__init__(message, details, importance)
class CLIUnknownCommand(CLIError):
def __init__(self, message='Unknown Command', details=[], importance=1):
super(CLIUnknownCommand, self).__init__(message, details, importance)
class CLICmdSpecError(CLIError):
def __init__(
self, message='Command Specification Error',
details=[], importance=0):
super(CLICmdSpecError, self).__init__(message, details, importance)
class CLICmdIncompleteError(CLICmdSpecError):
def __init__(
self, message='Incomplete Command Error',
details=[], importance=1):
super(CLICmdSpecError, self).__init__(message, details, importance)
def raiseCLIError(err, message='', importance=0, details=[]):
"""
:param err: (Exception) the original error message, if None, a new
CLIError is born which is conceptually bind to raiser
:param message: (str) a custom error message that overrides err's
:param importance: (int) instruction to called application (e.g. for
coloring printed error messages)
:param details: (list) various information on the error
:raises CLIError: it is the purpose of this method
"""
from traceback import format_stack
stack = ['%s' % type(err)] if err else ['<kamaki.cli.errors.CLIError>']
stack += format_stack()
try:
stack = [e for e in stack if e != stack[1]]
except KeyError:
recvlog.debug('\n < '.join(stack))
details = ['%s' % details] if not isinstance(details, list)\
else list(details)
details += getattr(err, 'details', [])
if err:
origerr = '%s' % err
origerr = origerr if origerr else '%s' % type(err)
else:
origerr = stack[0]
message = '%s' % (message if message else origerr)
try:
status = err.status or err.errno
except AttributeError:
status = None
if origerr not in details + [message]:
details.append(origerr)
message += '' if message and message[-1] == '\n' else '\n'
if status:
message = '(%s) %s' % (err.status, message)
try:
status = int(err.status)
except ValueError:
raise CLIError(message, details, importance)
importance = importance if importance else status // 100
importance = getattr(err, 'importance', importance)
raise CLIError(message, details, importance)