root / snf-pithos-backend / pithos / backends / lib / sqlite / quotaholder_serials.py @ 3ccbbca8
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1 | 6540c590 | Sofia Papagiannaki | # Copyright 2011-2012 GRNET S.A. All rights reserved.
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2 | 6540c590 | Sofia Papagiannaki | #
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3 | 6540c590 | Sofia Papagiannaki | # Redistribution and use in source and binary forms, with or
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4 | 6540c590 | Sofia Papagiannaki | # without modification, are permitted provided that the following
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5 | 6540c590 | Sofia Papagiannaki | # conditions are met:
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6 | 6540c590 | Sofia Papagiannaki | #
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7 | 6540c590 | Sofia Papagiannaki | # 1. Redistributions of source code must retain the above
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8 | 6540c590 | Sofia Papagiannaki | # copyright notice, this list of conditions and the following
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9 | 6540c590 | Sofia Papagiannaki | # disclaimer.
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10 | 6540c590 | Sofia Papagiannaki | #
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11 | 6540c590 | Sofia Papagiannaki | # 2. Redistributions in binary form must reproduce the above
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12 | 6540c590 | Sofia Papagiannaki | # copyright notice, this list of conditions and the following
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13 | 6540c590 | Sofia Papagiannaki | # disclaimer in the documentation and/or other materials
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14 | 6540c590 | Sofia Papagiannaki | # provided with the distribution.
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15 | 6540c590 | Sofia Papagiannaki | #
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16 | 6540c590 | Sofia Papagiannaki | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | 6540c590 | Sofia Papagiannaki | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | 6540c590 | Sofia Papagiannaki | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | 6540c590 | Sofia Papagiannaki | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | 6540c590 | Sofia Papagiannaki | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | 6540c590 | Sofia Papagiannaki | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | 6540c590 | Sofia Papagiannaki | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | 6540c590 | Sofia Papagiannaki | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | 6540c590 | Sofia Papagiannaki | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | 6540c590 | Sofia Papagiannaki | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | 6540c590 | Sofia Papagiannaki | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | 6540c590 | Sofia Papagiannaki | # POSSIBILITY OF SUCH DAMAGE.
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28 | 6540c590 | Sofia Papagiannaki | #
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29 | 6540c590 | Sofia Papagiannaki | # The views and conclusions contained in the software and
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30 | 6540c590 | Sofia Papagiannaki | # documentation are those of the authors and should not be
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31 | 6540c590 | Sofia Papagiannaki | # interpreted as representing official policies, either expressed
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32 | 6540c590 | Sofia Papagiannaki | # or implied, of GRNET S.A.
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33 | 6540c590 | Sofia Papagiannaki | |
34 | 6540c590 | Sofia Papagiannaki | from dbworker import DBWorker |
35 | 6540c590 | Sofia Papagiannaki | |
36 | 29148653 | Sofia Papagiannaki | |
37 | cb787cc4 | Sofia Papagiannaki | class QuotaholderSerial(DBWorker): |
38 | 8570576b | Sofia Papagiannaki | """QuotaholderSerial keeps track of quota holder serials."""
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39 | 6540c590 | Sofia Papagiannaki | |
40 | 6540c590 | Sofia Papagiannaki | def __init__(self, **params): |
41 | 6540c590 | Sofia Papagiannaki | DBWorker.__init__(self, **params)
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42 | cb787cc4 | Sofia Papagiannaki | execute = self.execute
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43 | 6540c590 | Sofia Papagiannaki | |
44 | 6a5ca445 | Sofia Papagiannaki | execute(""" create table if not exists qh_serials
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45 | cb787cc4 | Sofia Papagiannaki | ( serial bigint primary key) """)
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46 | 8570576b | Sofia Papagiannaki | |
47 | 6540c590 | Sofia Papagiannaki | def get_lower(self, serial): |
48 | 6540c590 | Sofia Papagiannaki | """Return entries lower than serial."""
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49 | 6540c590 | Sofia Papagiannaki | |
50 | 6a5ca445 | Sofia Papagiannaki | q = "select serial from qh_serials where serial < ?"
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51 | cb787cc4 | Sofia Papagiannaki | self.execute(q, (serial,))
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52 | cb787cc4 | Sofia Papagiannaki | return self.fetchall() |
53 | 8570576b | Sofia Papagiannaki | |
54 | 8570576b | Sofia Papagiannaki | def lookup(self, serials): |
55 | 8570576b | Sofia Papagiannaki | """Return the registered serials."""
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56 | 8570576b | Sofia Papagiannaki | |
57 | 8570576b | Sofia Papagiannaki | placeholders = ','.join('?' for _ in serials) |
58 | 8570576b | Sofia Papagiannaki | q = "select serial from qh_serials where serial in (%s)" % placeholders
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59 | 8570576b | Sofia Papagiannaki | return [i[0] for i in self.execute(q, serials).fetchall()] |
60 | 8570576b | Sofia Papagiannaki | |
61 | 6540c590 | Sofia Papagiannaki | def insert_serial(self, serial): |
62 | 8570576b | Sofia Papagiannaki | """Insert a serial."""
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63 | 6540c590 | Sofia Papagiannaki | |
64 | 6a5ca445 | Sofia Papagiannaki | q = "insert or ignore into qh_serials (serial) values (?)"
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65 | cb787cc4 | Sofia Papagiannaki | return self.execute(q, (serial,)).lastrowid |
66 | 8570576b | Sofia Papagiannaki | |
67 | 8570576b | Sofia Papagiannaki | def insert_many(self, serials): |
68 | 8570576b | Sofia Papagiannaki | """Insert multiple serials."""
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69 | 8570576b | Sofia Papagiannaki | |
70 | 8570576b | Sofia Papagiannaki | q = "insert into qh_serials(serial) values (?)"
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71 | 8570576b | Sofia Papagiannaki | self.executemany(q, [(s,) for s in serials]) |
72 | 8570576b | Sofia Papagiannaki | |
73 | 8570576b | Sofia Papagiannaki | def delete_many(self, serials): |
74 | 8570576b | Sofia Papagiannaki | """Delete specified serials."""
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75 | 8570576b | Sofia Papagiannaki | |
76 | 8570576b | Sofia Papagiannaki | if not serials: |
77 | 8570576b | Sofia Papagiannaki | return
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78 | 8570576b | Sofia Papagiannaki | placeholders = ','.join('?' for _ in serials) |
79 | 8570576b | Sofia Papagiannaki | q = "delete from qh_serials where serial in (%s)" % placeholders
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80 | 8570576b | Sofia Papagiannaki | self.conn.execute(q, serials) |