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131 lines
3.1 KiB
Python
131 lines
3.1 KiB
Python
# Authors:
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# Jason Gerard DeRose <jderose@redhat.com>
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#
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# Copyright (C) 2008 Red Hat
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# see file 'COPYING' for use and warranty inmsgion
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; version 2 only
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""
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All custom errors raised by `ipalib` package.
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"""
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class IPAError(Exception):
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"""
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Use this base class for your custom IPA errors unless there is a
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specific reason to subclass from AttributeError, KeyError, etc.
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"""
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msg = None
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def __init__(self, *args, **kw):
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self.args = args
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self.kw = kw
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def __str__(self):
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"""
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Returns the string representation of this exception.
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"""
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if self.msg is None:
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if len(self.args) == 1:
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return unicode(self.args[0])
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return unicode(self.args)
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if len(self.args) > 0:
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return self.msg % self.args
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return self.msg % self.kw
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class SetError(IPAError):
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msg = 'setting %r, but NameSpace does not allow attribute setting'
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class RegistrationError(IPAError):
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"""
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Base class for errors that occur during plugin registration.
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"""
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class NameSpaceError(RegistrationError):
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msg = 'name %r does not re.match %r'
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class SubclassError(RegistrationError):
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"""
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Raised when registering a plugin that is not a subclass of one of the
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allowed bases.
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"""
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msg = 'plugin %r not subclass of any base in %r'
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def __init__(self, cls, allowed):
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self.cls = cls
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self.allowed = allowed
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def __str__(self):
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return self.msg % (self.cls, self.allowed)
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class DuplicateError(RegistrationError):
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"""
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Raised when registering a plugin whose exact class has already been
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registered.
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"""
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msg = '%r at %d was already registered'
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def __init__(self, cls):
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self.cls = cls
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def __str__(self):
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return self.msg % (self.cls, id(self.cls))
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class OverrideError(RegistrationError):
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"""
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Raised when override=False yet registering a plugin that overrides an
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existing plugin in the same namespace.
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"""
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msg = 'unexpected override of %s.%s with %r (use override=True if intended)'
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def __init__(self, base, cls):
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self.base = base
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self.cls = cls
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def __str__(self):
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return self.msg % (self.base.__name__, self.cls.__name__, self.cls)
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class MissingOverrideError(RegistrationError):
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"""
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Raised when override=True yet no preexisting plugin with the same name
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and base has been registered.
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"""
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msg = '%s.%s has not been registered, cannot override with %r'
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def __init__(self, base, cls):
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self.base = base
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self.cls = cls
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def __str__(self):
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return self.msg % (self.base.__name__, self.cls.__name__, self.cls)
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class TwiceSetError(IPAError):
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msg = '%s.%s cannot be set twice'
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