Last change
on this file since 249 was
236,
checked in by ecprice, 17 years ago
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Move out of the templates directory.
|
File size:
1.3 KB
|
Rev | Line | |
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[209] | 1 | """Exceptions for the web interface.""" |
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| 2 | |
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| 3 | from sipb_xen_database import Machine |
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| 4 | |
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| 5 | class MyException(Exception): |
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| 6 | """Base class for my exceptions""" |
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| 7 | pass |
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| 8 | |
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| 9 | class InvalidInput(MyException): |
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| 10 | """Exception for user-provided input is invalid but maybe in good faith. |
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| 11 | |
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| 12 | This would include setting memory to negative (which might be a |
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| 13 | typo) but not setting an invalid boot CD (which requires bypassing |
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| 14 | the select box). |
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| 15 | """ |
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| 16 | def __init__(self, err_field, err_value, expl=None): |
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| 17 | MyException.__init__(self, expl) |
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| 18 | self.err_field = err_field |
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| 19 | self.err_value = err_value |
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| 20 | |
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| 21 | class CodeError(MyException): |
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| 22 | """Exception for internal errors or bad faith input.""" |
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| 23 | pass |
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| 24 | |
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| 25 | import controls |
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| 26 | |
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| 27 | class Global(object): |
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| 28 | """Global state of the system, to avoid duplicate remctls to get state""" |
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| 29 | def __init__(self, user): |
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| 30 | self.user = user |
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| 31 | |
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| 32 | def __get_uptimes(self): |
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| 33 | if not hasattr(self, '_uptimes'): |
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| 34 | self._uptimes = controls.getUptimes(Machine.select()) |
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| 35 | return self._uptimes |
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| 36 | uptimes = property(__get_uptimes) |
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| 37 | |
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| 38 | def clear(self): |
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| 39 | """Clear the state so future accesses reload it.""" |
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| 40 | for attr in ('_uptimes', ): |
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| 41 | if hasattr(self, attr): |
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| 42 | delattr(self, attr) |
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| 43 | |
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| 44 | g = Global(None) |
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