[695] | 1 | # PyKota |
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[1144] | 2 | # -*- coding: ISO-8859-15 -*- |
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[695] | 3 | # |
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[952] | 4 | # PyKota : Print Quotas for CUPS and LPRng |
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[695] | 5 | # |
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[1257] | 6 | # (c) 2003-2004 Jerome Alet <alet@librelogiciel.com> |
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[873] | 7 | # This program is free software; you can redistribute it and/or modify |
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| 8 | # it under the terms of the GNU General Public License as published by |
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| 9 | # the Free Software Foundation; either version 2 of the License, or |
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| 10 | # (at your option) any later version. |
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[695] | 11 | # |
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[873] | 12 | # This program is distributed in the hope that it will be useful, |
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| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | # GNU General Public License for more details. |
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| 16 | # |
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| 17 | # You should have received a copy of the GNU General Public License |
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| 18 | # along with this program; if not, write to the Free Software |
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| 19 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. |
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[695] | 20 | # |
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| 21 | # $Id$ |
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| 22 | # |
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| 23 | # $Log$ |
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[1433] | 24 | # Revision 1.13 2004/04/09 22:24:46 jalet |
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| 25 | # Began work on correct handling of child processes when jobs are cancelled by |
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| 26 | # the user. Especially important when an external requester is running for a |
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| 27 | # long time. |
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| 28 | # |
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[1257] | 29 | # Revision 1.12 2004/01/08 14:10:32 jalet |
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| 30 | # Copyright year changed. |
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| 31 | # |
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[1240] | 32 | # Revision 1.11 2003/12/27 16:49:25 uid67467 |
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| 33 | # Should be ok now. |
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| 34 | # |
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[1219] | 35 | # Revision 1.10 2003/11/25 23:46:40 jalet |
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| 36 | # Don't try to verify if module name is valid, Python does this better than us. |
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| 37 | # |
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[1144] | 38 | # Revision 1.9 2003/10/07 09:07:28 jalet |
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| 39 | # Character encoding added to please latest version of Python |
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| 40 | # |
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[1068] | 41 | # Revision 1.8 2003/07/07 11:49:24 jalet |
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| 42 | # Lots of small fixes with the help of PyChecker |
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| 43 | # |
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[952] | 44 | # Revision 1.7 2003/04/23 22:13:57 jalet |
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| 45 | # Preliminary support for LPRng added BUT STILL UNTESTED. |
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| 46 | # |
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[873] | 47 | # Revision 1.6 2003/03/29 13:45:27 jalet |
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| 48 | # GPL paragraphs were incorrectly (from memory) copied into the sources. |
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| 49 | # Two README files were added. |
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| 50 | # Upgrade script for PostgreSQL pre 1.01 schema was added. |
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| 51 | # |
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[780] | 52 | # Revision 1.5 2003/02/10 00:42:17 jalet |
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| 53 | # External requester should be ok (untested) |
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| 54 | # New syntax for configuration file wrt requesters |
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| 55 | # |
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[773] | 56 | # Revision 1.4 2003/02/09 13:05:43 jalet |
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| 57 | # Internationalization continues... |
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| 58 | # |
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[698] | 59 | # Revision 1.3 2003/02/05 22:10:29 jalet |
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| 60 | # Typos |
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| 61 | # |
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[697] | 62 | # Revision 1.2 2003/02/05 22:02:22 jalet |
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| 63 | # __import__ statement didn't work as expected |
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| 64 | # |
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[695] | 65 | # Revision 1.1 2003/02/05 21:28:17 jalet |
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| 66 | # Initial import into CVS |
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| 67 | # |
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| 68 | # |
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| 69 | # |
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| 70 | |
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| 71 | class PyKotaRequesterError(Exception): |
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| 72 | """An exception for Requester related stuff.""" |
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| 73 | def __init__(self, message = ""): |
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| 74 | self.message = message |
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| 75 | Exception.__init__(self, message) |
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| 76 | def __repr__(self): |
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| 77 | return self.message |
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| 78 | __str__ = __repr__ |
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| 79 | |
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[1433] | 80 | def openRequester(kotabackend, printername) : |
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[695] | 81 | """Returns a connection handle to the appropriate requester.""" |
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[1433] | 82 | (backend, args) = kotabackend.config.getRequesterBackend(printername) |
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[695] | 83 | try : |
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[1219] | 84 | exec "from pykota.requesters import %s as requesterbackend" % backend.lower() |
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[695] | 85 | except ImportError : |
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[773] | 86 | raise PyKotaRequesterError, _("Unsupported requester backend %s") % backend |
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[695] | 87 | else : |
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[1433] | 88 | return requesterbackend.Requester(kotabackend, printername, args) |
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