root / snf-pithos-backend / pithos / backends / lib / sqlite / node.py @ a5b0519c
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1 | 2e662088 | Antony Chazapis | # Copyright 2011-2012 GRNET S.A. All rights reserved.
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2 | 2715ade4 | Sofia Papagiannaki | #
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3 | 1f2d1b42 | Antony Chazapis | # Redistribution and use in source and binary forms, with or
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4 | 1f2d1b42 | Antony Chazapis | # without modification, are permitted provided that the following
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5 | 1f2d1b42 | Antony Chazapis | # conditions are met:
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6 | 2715ade4 | Sofia Papagiannaki | #
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7 | 1f2d1b42 | Antony Chazapis | # 1. Redistributions of source code must retain the above
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8 | 1f2d1b42 | Antony Chazapis | # copyright notice, this list of conditions and the following
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9 | 1f2d1b42 | Antony Chazapis | # disclaimer.
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10 | 2715ade4 | Sofia Papagiannaki | #
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11 | 1f2d1b42 | Antony Chazapis | # 2. Redistributions in binary form must reproduce the above
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12 | 1f2d1b42 | Antony Chazapis | # copyright notice, this list of conditions and the following
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13 | 1f2d1b42 | Antony Chazapis | # disclaimer in the documentation and/or other materials
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14 | 1f2d1b42 | Antony Chazapis | # provided with the distribution.
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15 | 2715ade4 | Sofia Papagiannaki | #
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16 | 1f2d1b42 | Antony Chazapis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | 1f2d1b42 | Antony Chazapis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | 1f2d1b42 | Antony Chazapis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | 1f2d1b42 | Antony Chazapis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | 1f2d1b42 | Antony Chazapis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | 1f2d1b42 | Antony Chazapis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | 1f2d1b42 | Antony Chazapis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | 1f2d1b42 | Antony Chazapis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | 1f2d1b42 | Antony Chazapis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | 1f2d1b42 | Antony Chazapis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | 1f2d1b42 | Antony Chazapis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | 1f2d1b42 | Antony Chazapis | # POSSIBILITY OF SUCH DAMAGE.
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28 | 2715ade4 | Sofia Papagiannaki | #
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29 | 1f2d1b42 | Antony Chazapis | # The views and conclusions contained in the software and
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30 | 1f2d1b42 | Antony Chazapis | # documentation are those of the authors and should not be
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31 | 1f2d1b42 | Antony Chazapis | # interpreted as representing official policies, either expressed
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32 | 1f2d1b42 | Antony Chazapis | # or implied, of GRNET S.A.
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33 | 1f2d1b42 | Antony Chazapis | |
34 | 1f2d1b42 | Antony Chazapis | from time import time |
35 | 5576e6dd | Sofia Papagiannaki | from operator import itemgetter |
36 | 5576e6dd | Sofia Papagiannaki | from itertools import groupby |
37 | 1f2d1b42 | Antony Chazapis | |
38 | 1f2d1b42 | Antony Chazapis | from dbworker import DBWorker |
39 | 1f2d1b42 | Antony Chazapis | |
40 | 6e147ecc | Antony Chazapis | from pithos.backends.filter import parse_filters |
41 | 1713c946 | Antony Chazapis | |
42 | 1f2d1b42 | Antony Chazapis | |
43 | 2715ade4 | Sofia Papagiannaki | ROOTNODE = 0
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44 | 1f2d1b42 | Antony Chazapis | |
45 | 2715ade4 | Sofia Papagiannaki | (SERIAL, NODE, HASH, SIZE, TYPE, SOURCE, MTIME, MUSER, UUID, CHECKSUM, |
46 | 2715ade4 | Sofia Papagiannaki | CLUSTER) = range(11) |
47 | 1f2d1b42 | Antony Chazapis | |
48 | 2715ade4 | Sofia Papagiannaki | (MATCH_PREFIX, MATCH_EXACT) = range(2) |
49 | 1f2d1b42 | Antony Chazapis | |
50 | 1f2d1b42 | Antony Chazapis | inf = float('inf') |
51 | 1f2d1b42 | Antony Chazapis | |
52 | 1f2d1b42 | Antony Chazapis | |
53 | 1f2d1b42 | Antony Chazapis | def strnextling(prefix): |
54 | 60b8a083 | Antony Chazapis | """Return the first unicode string
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55 | 1f2d1b42 | Antony Chazapis | greater than but not starting with given prefix.
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56 | 1f2d1b42 | Antony Chazapis | strnextling('hello') -> 'hellp'
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57 | 1f2d1b42 | Antony Chazapis | """
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58 | 1f2d1b42 | Antony Chazapis | if not prefix: |
59 | 1f2d1b42 | Antony Chazapis | ## all strings start with the null string,
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60 | 1f2d1b42 | Antony Chazapis | ## therefore we have to approximate strnextling('')
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61 | 1f2d1b42 | Antony Chazapis | ## with the last unicode character supported by python
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62 | 1f2d1b42 | Antony Chazapis | ## 0x10ffff for wide (32-bit unicode) python builds
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63 | 1f2d1b42 | Antony Chazapis | ## 0x00ffff for narrow (16-bit unicode) python builds
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64 | 1f2d1b42 | Antony Chazapis | ## We will not autodetect. 0xffff is safe enough.
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65 | 1f2d1b42 | Antony Chazapis | return unichr(0xffff) |
66 | 1f2d1b42 | Antony Chazapis | s = prefix[:-1]
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67 | 1f2d1b42 | Antony Chazapis | c = ord(prefix[-1]) |
68 | 1f2d1b42 | Antony Chazapis | if c >= 0xffff: |
69 | 1f2d1b42 | Antony Chazapis | raise RuntimeError |
70 | 2715ade4 | Sofia Papagiannaki | s += unichr(c + 1) |
71 | 1f2d1b42 | Antony Chazapis | return s
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72 | 1f2d1b42 | Antony Chazapis | |
73 | 2715ade4 | Sofia Papagiannaki | |
74 | 1f2d1b42 | Antony Chazapis | def strprevling(prefix): |
75 | 60b8a083 | Antony Chazapis | """Return an approximation of the last unicode string
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76 | 1f2d1b42 | Antony Chazapis | less than but not starting with given prefix.
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77 | 1f2d1b42 | Antony Chazapis | strprevling(u'hello') -> u'helln\\xffff'
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78 | 1f2d1b42 | Antony Chazapis | """
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79 | 1f2d1b42 | Antony Chazapis | if not prefix: |
80 | 1f2d1b42 | Antony Chazapis | ## There is no prevling for the null string
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81 | 1f2d1b42 | Antony Chazapis | return prefix
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82 | 1f2d1b42 | Antony Chazapis | s = prefix[:-1]
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83 | 1f2d1b42 | Antony Chazapis | c = ord(prefix[-1]) |
84 | 1f2d1b42 | Antony Chazapis | if c > 0: |
85 | 2715ade4 | Sofia Papagiannaki | s += unichr(c - 1) + unichr(0xffff) |
86 | 1f2d1b42 | Antony Chazapis | return s
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87 | 1f2d1b42 | Antony Chazapis | |
88 | 1f2d1b42 | Antony Chazapis | |
89 | 1f2d1b42 | Antony Chazapis | _propnames = { |
90 | 2715ade4 | Sofia Papagiannaki | 'serial': 0, |
91 | 2715ade4 | Sofia Papagiannaki | 'node': 1, |
92 | 2715ade4 | Sofia Papagiannaki | 'hash': 2, |
93 | 2715ade4 | Sofia Papagiannaki | 'size': 3, |
94 | 2715ade4 | Sofia Papagiannaki | 'type': 4, |
95 | 2715ade4 | Sofia Papagiannaki | 'source': 5, |
96 | 2715ade4 | Sofia Papagiannaki | 'mtime': 6, |
97 | 2715ade4 | Sofia Papagiannaki | 'muser': 7, |
98 | 2715ade4 | Sofia Papagiannaki | 'uuid': 8, |
99 | 2715ade4 | Sofia Papagiannaki | 'checksum': 9, |
100 | 2715ade4 | Sofia Papagiannaki | 'cluster': 10 |
101 | 1f2d1b42 | Antony Chazapis | } |
102 | 1f2d1b42 | Antony Chazapis | |
103 | 1f2d1b42 | Antony Chazapis | |
104 | 1f2d1b42 | Antony Chazapis | class Node(DBWorker): |
105 | 60b8a083 | Antony Chazapis | """Nodes store path organization and have multiple versions.
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106 | 60b8a083 | Antony Chazapis | Versions store object history and have multiple attributes.
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107 | 1f2d1b42 | Antony Chazapis | Attributes store metadata.
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108 | 1f2d1b42 | Antony Chazapis | """
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109 | 2715ade4 | Sofia Papagiannaki | |
110 | 60b8a083 | Antony Chazapis | # TODO: Provide an interface for included and excluded clusters.
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111 | 2715ade4 | Sofia Papagiannaki | |
112 | 1f2d1b42 | Antony Chazapis | def __init__(self, **params): |
113 | 62f915a1 | Antony Chazapis | DBWorker.__init__(self, **params)
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114 | 1f2d1b42 | Antony Chazapis | execute = self.execute
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115 | 2715ade4 | Sofia Papagiannaki | |
116 | 1f2d1b42 | Antony Chazapis | execute(""" pragma foreign_keys = on """)
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117 | 2715ade4 | Sofia Papagiannaki | |
118 | 1f2d1b42 | Antony Chazapis | execute(""" create table if not exists nodes
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119 | 1f2d1b42 | Antony Chazapis | ( node integer primary key,
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120 | 62f915a1 | Antony Chazapis | parent integer default 0,
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121 | 44ad5860 | Antony Chazapis | path text not null default '',
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122 | 585b75e7 | Sofia Papagiannaki | latest_version integer,
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123 | 1f2d1b42 | Antony Chazapis | foreign key (parent)
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124 | 1f2d1b42 | Antony Chazapis | references nodes(node)
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125 | 1f2d1b42 | Antony Chazapis | on update cascade
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126 | 5e7485da | Antony Chazapis | on delete cascade ) """)
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127 | 1f2d1b42 | Antony Chazapis | execute(""" create unique index if not exists idx_nodes_path
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128 | 1f2d1b42 | Antony Chazapis | on nodes(path) """)
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129 | 585b75e7 | Sofia Papagiannaki | execute(""" create index if not exists idx_nodes_parent
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130 | 585b75e7 | Sofia Papagiannaki | on nodes(parent) """)
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131 | 2715ade4 | Sofia Papagiannaki | |
132 | 5e7485da | Antony Chazapis | execute(""" create table if not exists policy
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133 | 5e7485da | Antony Chazapis | ( node integer,
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134 | 5e7485da | Antony Chazapis | key text,
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135 | 5e7485da | Antony Chazapis | value text,
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136 | 5e7485da | Antony Chazapis | primary key (node, key)
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137 | 5e7485da | Antony Chazapis | foreign key (node)
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138 | 5e7485da | Antony Chazapis | references nodes(node)
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139 | 5e7485da | Antony Chazapis | on update cascade
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140 | 5e7485da | Antony Chazapis | on delete cascade ) """)
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141 | 2715ade4 | Sofia Papagiannaki | |
142 | 1f2d1b42 | Antony Chazapis | execute(""" create table if not exists statistics
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143 | 62f915a1 | Antony Chazapis | ( node integer,
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144 | 1f2d1b42 | Antony Chazapis | population integer not null default 0,
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145 | 1f2d1b42 | Antony Chazapis | size integer not null default 0,
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146 | 1f2d1b42 | Antony Chazapis | mtime integer,
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147 | 1f2d1b42 | Antony Chazapis | cluster integer not null default 0,
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148 | 1f2d1b42 | Antony Chazapis | primary key (node, cluster)
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149 | 1f2d1b42 | Antony Chazapis | foreign key (node)
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150 | 1f2d1b42 | Antony Chazapis | references nodes(node)
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151 | 1f2d1b42 | Antony Chazapis | on update cascade
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152 | 5e7485da | Antony Chazapis | on delete cascade ) """)
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153 | 2715ade4 | Sofia Papagiannaki | |
154 | 1f2d1b42 | Antony Chazapis | execute(""" create table if not exists versions
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155 | 1f2d1b42 | Antony Chazapis | ( serial integer primary key,
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156 | 62f915a1 | Antony Chazapis | node integer,
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157 | 1c2fc0ff | Antony Chazapis | hash text,
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158 | 1f2d1b42 | Antony Chazapis | size integer not null default 0,
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159 | 66ce2ca5 | Antony Chazapis | type text not null default '',
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160 | 1f2d1b42 | Antony Chazapis | source integer,
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161 | 1f2d1b42 | Antony Chazapis | mtime integer,
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162 | c1cdc455 | Antony Chazapis | muser text not null default '',
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163 | 25ae8b75 | Antony Chazapis | uuid text not null default '',
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164 | 33b4e4a6 | Antony Chazapis | checksum text not null default '',
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165 | 1f2d1b42 | Antony Chazapis | cluster integer not null default 0,
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166 | 1f2d1b42 | Antony Chazapis | foreign key (node)
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167 | 1f2d1b42 | Antony Chazapis | references nodes(node)
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168 | 1f2d1b42 | Antony Chazapis | on update cascade
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169 | 1f2d1b42 | Antony Chazapis | on delete cascade ) """)
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170 | 9e35988c | Antony Chazapis | execute(""" create index if not exists idx_versions_node_mtime
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171 | 9e35988c | Antony Chazapis | on versions(node, mtime) """)
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172 | 25ae8b75 | Antony Chazapis | execute(""" create index if not exists idx_versions_node_uuid
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173 | 25ae8b75 | Antony Chazapis | on versions(uuid) """)
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174 | 2715ade4 | Sofia Papagiannaki | |
175 | 1f2d1b42 | Antony Chazapis | execute(""" create table if not exists attributes
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176 | 1f2d1b42 | Antony Chazapis | ( serial integer,
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177 | 4819d34f | Antony Chazapis | domain text,
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178 | 1f2d1b42 | Antony Chazapis | key text,
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179 | 1f2d1b42 | Antony Chazapis | value text,
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180 | 4819d34f | Antony Chazapis | primary key (serial, domain, key)
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181 | 1f2d1b42 | Antony Chazapis | foreign key (serial)
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182 | 1f2d1b42 | Antony Chazapis | references versions(serial)
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183 | 1f2d1b42 | Antony Chazapis | on update cascade
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184 | 1f2d1b42 | Antony Chazapis | on delete cascade ) """)
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185 | 5576e6dd | Sofia Papagiannaki | execute(""" create index if not exists idx_attributes_domain
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186 | 5576e6dd | Sofia Papagiannaki | on attributes(domain) """)
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187 | 2715ade4 | Sofia Papagiannaki | |
188 | cf53943b | Sofia Papagiannaki | wrapper = self.wrapper
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189 | cf53943b | Sofia Papagiannaki | wrapper.execute() |
190 | cf53943b | Sofia Papagiannaki | try:
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191 | cf53943b | Sofia Papagiannaki | q = "insert or ignore into nodes(node, parent) values (?, ?)"
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192 | cf53943b | Sofia Papagiannaki | execute(q, (ROOTNODE, ROOTNODE)) |
193 | cf53943b | Sofia Papagiannaki | finally:
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194 | cf53943b | Sofia Papagiannaki | wrapper.commit() |
195 | 2715ade4 | Sofia Papagiannaki | |
196 | 44ad5860 | Antony Chazapis | def node_create(self, parent, path): |
197 | 44ad5860 | Antony Chazapis | """Create a new node from the given properties.
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198 | 44ad5860 | Antony Chazapis | Return the node identifier of the new node.
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199 | 44ad5860 | Antony Chazapis | """
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200 | 2715ade4 | Sofia Papagiannaki | |
201 | 44ad5860 | Antony Chazapis | q = ("insert into nodes (parent, path) "
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202 | 44ad5860 | Antony Chazapis | "values (?, ?)")
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203 | 44ad5860 | Antony Chazapis | props = (parent, path) |
204 | 44ad5860 | Antony Chazapis | return self.execute(q, props).lastrowid |
205 | 2715ade4 | Sofia Papagiannaki | |
206 | 985b9b09 | Sofia Papagiannaki | def node_lookup(self, path, **kwargs): |
207 | 44ad5860 | Antony Chazapis | """Lookup the current node of the given path.
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208 | 44ad5860 | Antony Chazapis | Return None if the path is not found.
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209 | 985b9b09 | Sofia Papagiannaki |
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210 | 985b9b09 | Sofia Papagiannaki | kwargs is not used: it is passed for conformance
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211 | 44ad5860 | Antony Chazapis | """
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212 | 2715ade4 | Sofia Papagiannaki | |
213 | c1cdc455 | Antony Chazapis | q = "select node from nodes where path = ?"
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214 | 44ad5860 | Antony Chazapis | self.execute(q, (path,))
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215 | 44ad5860 | Antony Chazapis | r = self.fetchone()
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216 | 44ad5860 | Antony Chazapis | if r is not None: |
217 | 44ad5860 | Antony Chazapis | return r[0] |
218 | 44ad5860 | Antony Chazapis | return None |
219 | 2715ade4 | Sofia Papagiannaki | |
220 | 4d15c94e | Sofia Papagiannaki | def node_lookup_bulk(self, paths): |
221 | 2715ade4 | Sofia Papagiannaki | """Lookup the current nodes for the given paths.
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222 | 4d15c94e | Sofia Papagiannaki | Return () if the path is not found.
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223 | 4d15c94e | Sofia Papagiannaki | """
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224 | 2715ade4 | Sofia Papagiannaki | |
225 | 4d15c94e | Sofia Papagiannaki | placeholders = ','.join('?' for path in paths) |
226 | cf4a7a7b | Sofia Papagiannaki | q = "select node from nodes where path in (%s)" % placeholders
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227 | 4d15c94e | Sofia Papagiannaki | self.execute(q, paths)
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228 | cf4a7a7b | Sofia Papagiannaki | r = self.fetchall()
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229 | cf4a7a7b | Sofia Papagiannaki | if r is not None: |
230 | 2715ade4 | Sofia Papagiannaki | return [row[0] for row in r] |
231 | cf4a7a7b | Sofia Papagiannaki | return None |
232 | 2715ade4 | Sofia Papagiannaki | |
233 | 62f915a1 | Antony Chazapis | def node_get_properties(self, node): |
234 | 62f915a1 | Antony Chazapis | """Return the node's (parent, path).
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235 | 62f915a1 | Antony Chazapis | Return None if the node is not found.
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236 | 62f915a1 | Antony Chazapis | """
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237 | 2715ade4 | Sofia Papagiannaki | |
238 | 62f915a1 | Antony Chazapis | q = "select parent, path from nodes where node = ?"
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239 | c1cdc455 | Antony Chazapis | self.execute(q, (node,))
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240 | 62f915a1 | Antony Chazapis | return self.fetchone() |
241 | 2715ade4 | Sofia Papagiannaki | |
242 | 676edf89 | Antony Chazapis | def node_get_versions(self, node, keys=(), propnames=_propnames): |
243 | 676edf89 | Antony Chazapis | """Return the properties of all versions at node.
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244 | 676edf89 | Antony Chazapis | If keys is empty, return all properties in the order
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245 | 33b4e4a6 | Antony Chazapis | (serial, node, hash, size, type, source, mtime, muser, uuid, checksum, cluster).
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246 | 676edf89 | Antony Chazapis | """
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247 | 2715ade4 | Sofia Papagiannaki | |
248 | 33b4e4a6 | Antony Chazapis | q = ("select serial, node, hash, size, type, source, mtime, muser, uuid, checksum, cluster "
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249 | 676edf89 | Antony Chazapis | "from versions "
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250 | 676edf89 | Antony Chazapis | "where node = ?")
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251 | 60b8a083 | Antony Chazapis | self.execute(q, (node,))
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252 | 676edf89 | Antony Chazapis | r = self.fetchall()
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253 | 676edf89 | Antony Chazapis | if r is None: |
254 | 676edf89 | Antony Chazapis | return r
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255 | 2715ade4 | Sofia Papagiannaki | |
256 | 676edf89 | Antony Chazapis | if not keys: |
257 | 676edf89 | Antony Chazapis | return r
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258 | 676edf89 | Antony Chazapis | return [[p[propnames[k]] for k in keys if k in propnames] for p in r] |
259 | 2715ade4 | Sofia Papagiannaki | |
260 | c915d3bf | Antony Chazapis | def node_count_children(self, node): |
261 | 44ad5860 | Antony Chazapis | """Return node's child count."""
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262 | 2715ade4 | Sofia Papagiannaki | |
263 | c915d3bf | Antony Chazapis | q = "select count(node) from nodes where parent = ? and node != 0"
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264 | 44ad5860 | Antony Chazapis | self.execute(q, (node,))
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265 | 62f915a1 | Antony Chazapis | r = self.fetchone()
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266 | 44ad5860 | Antony Chazapis | if r is None: |
267 | 44ad5860 | Antony Chazapis | return 0 |
268 | 62f915a1 | Antony Chazapis | return r[0] |
269 | 2715ade4 | Sofia Papagiannaki | |
270 | c915d3bf | Antony Chazapis | def node_purge_children(self, parent, before=inf, cluster=0): |
271 | c915d3bf | Antony Chazapis | """Delete all versions with the specified
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272 | c915d3bf | Antony Chazapis | parent and cluster, and return
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273 | 0a92ff85 | Sofia Papagiannaki | the hashes, the size and the serials of versions deleted.
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274 | c915d3bf | Antony Chazapis | Clears out nodes with no remaining versions.
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275 | c915d3bf | Antony Chazapis | """
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276 | 2715ade4 | Sofia Papagiannaki | |
277 | c915d3bf | Antony Chazapis | execute = self.execute
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278 | c915d3bf | Antony Chazapis | q = ("select count(serial), sum(size) from versions "
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279 | c915d3bf | Antony Chazapis | "where node in (select node "
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280 | 2715ade4 | Sofia Papagiannaki | "from nodes "
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281 | 2715ade4 | Sofia Papagiannaki | "where parent = ?) "
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282 | c915d3bf | Antony Chazapis | "and cluster = ? "
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283 | c915d3bf | Antony Chazapis | "and mtime <= ?")
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284 | c915d3bf | Antony Chazapis | args = (parent, cluster, before) |
285 | c915d3bf | Antony Chazapis | execute(q, args) |
286 | c915d3bf | Antony Chazapis | nr, size = self.fetchone()
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287 | c915d3bf | Antony Chazapis | if not nr: |
288 | 442bc80c | Sofia Papagiannaki | return (), 0, () |
289 | 60b8a083 | Antony Chazapis | mtime = time() |
290 | 60b8a083 | Antony Chazapis | self.statistics_update(parent, -nr, -size, mtime, cluster)
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291 | 60b8a083 | Antony Chazapis | self.statistics_update_ancestors(parent, -nr, -size, mtime, cluster)
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292 | 2715ade4 | Sofia Papagiannaki | |
293 | 5576e6dd | Sofia Papagiannaki | q = ("select hash, serial from versions "
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294 | c915d3bf | Antony Chazapis | "where node in (select node "
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295 | 2715ade4 | Sofia Papagiannaki | "from nodes "
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296 | 2715ade4 | Sofia Papagiannaki | "where parent = ?) "
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297 | c915d3bf | Antony Chazapis | "and cluster = ? "
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298 | c915d3bf | Antony Chazapis | "and mtime <= ?")
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299 | c915d3bf | Antony Chazapis | execute(q, args) |
300 | 388ea25f | Sofia Papagiannaki | hashes = [] |
301 | 388ea25f | Sofia Papagiannaki | serials = [] |
302 | 388ea25f | Sofia Papagiannaki | for r in self.fetchall(): |
303 | 388ea25f | Sofia Papagiannaki | hashes += [r[0]]
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304 | 388ea25f | Sofia Papagiannaki | serials += [r[1]]
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305 | 388ea25f | Sofia Papagiannaki | |
306 | c915d3bf | Antony Chazapis | q = ("delete from versions "
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307 | c915d3bf | Antony Chazapis | "where node in (select node "
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308 | 2715ade4 | Sofia Papagiannaki | "from nodes "
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309 | 2715ade4 | Sofia Papagiannaki | "where parent = ?) "
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310 | c915d3bf | Antony Chazapis | "and cluster = ? "
|
311 | c915d3bf | Antony Chazapis | "and mtime <= ?")
|
312 | c915d3bf | Antony Chazapis | execute(q, args) |
313 | 62f915a1 | Antony Chazapis | q = ("delete from nodes "
|
314 | 62f915a1 | Antony Chazapis | "where node in (select node from nodes n "
|
315 | 2715ade4 | Sofia Papagiannaki | "where (select count(serial) "
|
316 | 2715ade4 | Sofia Papagiannaki | "from versions "
|
317 | 2715ade4 | Sofia Papagiannaki | "where node = n.node) = 0 "
|
318 | 2715ade4 | Sofia Papagiannaki | "and parent = ?)")
|
319 | 62f915a1 | Antony Chazapis | execute(q, (parent,)) |
320 | 388ea25f | Sofia Papagiannaki | return hashes, size, serials
|
321 | 2715ade4 | Sofia Papagiannaki | |
322 | c915d3bf | Antony Chazapis | def node_purge(self, node, before=inf, cluster=0): |
323 | c915d3bf | Antony Chazapis | """Delete all versions with the specified
|
324 | c915d3bf | Antony Chazapis | node and cluster, and return
|
325 | 0a92ff85 | Sofia Papagiannaki | the hashes, the size and the serials of versions deleted.
|
326 | c915d3bf | Antony Chazapis | Clears out the node if it has no remaining versions.
|
327 | c915d3bf | Antony Chazapis | """
|
328 | 2715ade4 | Sofia Papagiannaki | |
329 | c915d3bf | Antony Chazapis | execute = self.execute
|
330 | c915d3bf | Antony Chazapis | q = ("select count(serial), sum(size) from versions "
|
331 | c915d3bf | Antony Chazapis | "where node = ? "
|
332 | c915d3bf | Antony Chazapis | "and cluster = ? "
|
333 | c915d3bf | Antony Chazapis | "and mtime <= ?")
|
334 | c915d3bf | Antony Chazapis | args = (node, cluster, before) |
335 | c915d3bf | Antony Chazapis | execute(q, args) |
336 | c915d3bf | Antony Chazapis | nr, size = self.fetchone()
|
337 | c915d3bf | Antony Chazapis | if not nr: |
338 | 442bc80c | Sofia Papagiannaki | return (), 0, () |
339 | 60b8a083 | Antony Chazapis | mtime = time() |
340 | 60b8a083 | Antony Chazapis | self.statistics_update_ancestors(node, -nr, -size, mtime, cluster)
|
341 | 2715ade4 | Sofia Papagiannaki | |
342 | 5576e6dd | Sofia Papagiannaki | q = ("select hash, serial from versions "
|
343 | c915d3bf | Antony Chazapis | "where node = ? "
|
344 | c915d3bf | Antony Chazapis | "and cluster = ? "
|
345 | c915d3bf | Antony Chazapis | "and mtime <= ?")
|
346 | c915d3bf | Antony Chazapis | execute(q, args) |
347 | 388ea25f | Sofia Papagiannaki | hashes = [] |
348 | 388ea25f | Sofia Papagiannaki | serials = [] |
349 | 388ea25f | Sofia Papagiannaki | for r in self.fetchall(): |
350 | 388ea25f | Sofia Papagiannaki | hashes += [r[0]]
|
351 | 388ea25f | Sofia Papagiannaki | serials += [r[1]]
|
352 | 5576e6dd | Sofia Papagiannaki | |
353 | c915d3bf | Antony Chazapis | q = ("delete from versions "
|
354 | c915d3bf | Antony Chazapis | "where node = ? "
|
355 | c915d3bf | Antony Chazapis | "and cluster = ? "
|
356 | c915d3bf | Antony Chazapis | "and mtime <= ?")
|
357 | c915d3bf | Antony Chazapis | execute(q, args) |
358 | 62f915a1 | Antony Chazapis | q = ("delete from nodes "
|
359 | 62f915a1 | Antony Chazapis | "where node in (select node from nodes n "
|
360 | 2715ade4 | Sofia Papagiannaki | "where (select count(serial) "
|
361 | 2715ade4 | Sofia Papagiannaki | "from versions "
|
362 | 2715ade4 | Sofia Papagiannaki | "where node = n.node) = 0 "
|
363 | 2715ade4 | Sofia Papagiannaki | "and node = ?)")
|
364 | 62f915a1 | Antony Chazapis | execute(q, (node,)) |
365 | 388ea25f | Sofia Papagiannaki | return hashes, size, serials
|
366 | 2715ade4 | Sofia Papagiannaki | |
367 | c915d3bf | Antony Chazapis | def node_remove(self, node): |
368 | c915d3bf | Antony Chazapis | """Remove the node specified.
|
369 | c915d3bf | Antony Chazapis | Return false if the node has children or is not found.
|
370 | c915d3bf | Antony Chazapis | """
|
371 | 2715ade4 | Sofia Papagiannaki | |
372 | c1cdc455 | Antony Chazapis | if self.node_count_children(node): |
373 | c915d3bf | Antony Chazapis | return False |
374 | 2715ade4 | Sofia Papagiannaki | |
375 | c915d3bf | Antony Chazapis | mtime = time() |
376 | 62f915a1 | Antony Chazapis | q = ("select count(serial), sum(size), cluster "
|
377 | c1cdc455 | Antony Chazapis | "from versions "
|
378 | c1cdc455 | Antony Chazapis | "where node = ? "
|
379 | c1cdc455 | Antony Chazapis | "group by cluster")
|
380 | c915d3bf | Antony Chazapis | self.execute(q, (node,))
|
381 | c915d3bf | Antony Chazapis | for population, size, cluster in self.fetchall(): |
382 | 2715ade4 | Sofia Papagiannaki | self.statistics_update_ancestors(
|
383 | 2715ade4 | Sofia Papagiannaki | node, -population, -size, mtime, cluster) |
384 | 2715ade4 | Sofia Papagiannaki | |
385 | c915d3bf | Antony Chazapis | q = "delete from nodes where node = ?"
|
386 | c915d3bf | Antony Chazapis | self.execute(q, (node,))
|
387 | c915d3bf | Antony Chazapis | return True |
388 | 2715ade4 | Sofia Papagiannaki | |
389 | d1e7d2b4 | Sofia Papagiannaki | def node_accounts(self, accounts=()): |
390 | ae6199c5 | Sofia Papagiannaki | q = ("select path, node from nodes where node != 0 and parent = 0 ")
|
391 | d1e7d2b4 | Sofia Papagiannaki | args = [] |
392 | d1e7d2b4 | Sofia Papagiannaki | if accounts:
|
393 | d1e7d2b4 | Sofia Papagiannaki | placeholders = ','.join('?' for a in accounts) |
394 | d1e7d2b4 | Sofia Papagiannaki | q += ("and path in (%s)" % placeholders)
|
395 | d1e7d2b4 | Sofia Papagiannaki | args += accounts |
396 | d1e7d2b4 | Sofia Papagiannaki | return self.execute(q, args).fetchall() |
397 | d1e7d2b4 | Sofia Papagiannaki | |
398 | ae6199c5 | Sofia Papagiannaki | def node_account_quotas(self): |
399 | ae6199c5 | Sofia Papagiannaki | q = ("select n.path, p.value from nodes n, policy p "
|
400 | ae6199c5 | Sofia Papagiannaki | "where n.node != 0 and n.parent = 0 "
|
401 | ae6199c5 | Sofia Papagiannaki | "and n.node = p.node and p.key = 'quota'"
|
402 | ae6199c5 | Sofia Papagiannaki | ) |
403 | ae6199c5 | Sofia Papagiannaki | return dict(self.execute(q).fetchall()) |
404 | ae6199c5 | Sofia Papagiannaki | |
405 | d1e7d2b4 | Sofia Papagiannaki | def node_account_usage(self, account_node, cluster): |
406 | d1e7d2b4 | Sofia Papagiannaki | select_children = ("select node from nodes where parent = ?")
|
407 | d1e7d2b4 | Sofia Papagiannaki | select_descedents = ("select node from nodes "
|
408 | d1e7d2b4 | Sofia Papagiannaki | "where parent in (%s) "
|
409 | d1e7d2b4 | Sofia Papagiannaki | "or node in (%s) ") % ((select_children,)*2) |
410 | d1e7d2b4 | Sofia Papagiannaki | args = [account_node]*2
|
411 | d1e7d2b4 | Sofia Papagiannaki | q = ("select sum(v.size) from versions v, nodes n "
|
412 | d1e7d2b4 | Sofia Papagiannaki | "where v.node = n.node "
|
413 | d1e7d2b4 | Sofia Papagiannaki | "and n.node in (%s) "
|
414 | d1e7d2b4 | Sofia Papagiannaki | "and v.cluster = ?") % select_descedents
|
415 | d1e7d2b4 | Sofia Papagiannaki | args += [cluster] |
416 | d1e7d2b4 | Sofia Papagiannaki | |
417 | d1e7d2b4 | Sofia Papagiannaki | self.execute(q, args)
|
418 | d1e7d2b4 | Sofia Papagiannaki | return self.fetchone()[0] |
419 | d1e7d2b4 | Sofia Papagiannaki | |
420 | 5e7485da | Antony Chazapis | def policy_get(self, node): |
421 | 5e7485da | Antony Chazapis | q = "select key, value from policy where node = ?"
|
422 | 5e7485da | Antony Chazapis | self.execute(q, (node,))
|
423 | 5e7485da | Antony Chazapis | return dict(self.fetchall()) |
424 | 2715ade4 | Sofia Papagiannaki | |
425 | 5e7485da | Antony Chazapis | def policy_set(self, node, policy): |
426 | 5e7485da | Antony Chazapis | q = "insert or replace into policy (node, key, value) values (?, ?, ?)"
|
427 | 5e7485da | Antony Chazapis | self.executemany(q, ((node, k, v) for k, v in policy.iteritems())) |
428 | 2715ade4 | Sofia Papagiannaki | |
429 | c1cdc455 | Antony Chazapis | def statistics_get(self, node, cluster=0): |
430 | c1cdc455 | Antony Chazapis | """Return population, total size and last mtime
|
431 | c1cdc455 | Antony Chazapis | for all versions under node that belong to the cluster.
|
432 | c1cdc455 | Antony Chazapis | """
|
433 | 2715ade4 | Sofia Papagiannaki | |
434 | 62f915a1 | Antony Chazapis | q = ("select population, size, mtime from statistics "
|
435 | c1cdc455 | Antony Chazapis | "where node = ? and cluster = ?")
|
436 | c1cdc455 | Antony Chazapis | self.execute(q, (node, cluster))
|
437 | 62f915a1 | Antony Chazapis | return self.fetchone() |
438 | 2715ade4 | Sofia Papagiannaki | |
439 | c1cdc455 | Antony Chazapis | def statistics_update(self, node, population, size, mtime, cluster=0): |
440 | c1cdc455 | Antony Chazapis | """Update the statistics of the given node.
|
441 | c1cdc455 | Antony Chazapis | Statistics keep track the population, total
|
442 | c1cdc455 | Antony Chazapis | size of objects and mtime in the node's namespace.
|
443 | c1cdc455 | Antony Chazapis | May be zero or positive or negative numbers.
|
444 | c1cdc455 | Antony Chazapis | """
|
445 | 2715ade4 | Sofia Papagiannaki | |
446 | 62f915a1 | Antony Chazapis | qs = ("select population, size from statistics "
|
447 | c1cdc455 | Antony Chazapis | "where node = ? and cluster = ?")
|
448 | c1cdc455 | Antony Chazapis | qu = ("insert or replace into statistics (node, population, size, mtime, cluster) "
|
449 | c1cdc455 | Antony Chazapis | "values (?, ?, ?, ?, ?)")
|
450 | c1cdc455 | Antony Chazapis | self.execute(qs, (node, cluster))
|
451 | c1cdc455 | Antony Chazapis | r = self.fetchone()
|
452 | c1cdc455 | Antony Chazapis | if r is None: |
453 | c1cdc455 | Antony Chazapis | prepopulation, presize = (0, 0) |
454 | c1cdc455 | Antony Chazapis | else:
|
455 | c1cdc455 | Antony Chazapis | prepopulation, presize = r |
456 | c1cdc455 | Antony Chazapis | population += prepopulation |
457 | 096a7c3b | Sofia Papagiannaki | population = max(population, 0) |
458 | c1cdc455 | Antony Chazapis | size += presize |
459 | c1cdc455 | Antony Chazapis | self.execute(qu, (node, population, size, mtime, cluster))
|
460 | 2715ade4 | Sofia Papagiannaki | |
461 | c1cdc455 | Antony Chazapis | def statistics_update_ancestors(self, node, population, size, mtime, cluster=0): |
462 | c1cdc455 | Antony Chazapis | """Update the statistics of the given node's parent.
|
463 | c1cdc455 | Antony Chazapis | Then recursively update all parents up to the root.
|
464 | c1cdc455 | Antony Chazapis | Population is not recursive.
|
465 | c1cdc455 | Antony Chazapis | """
|
466 | 2715ade4 | Sofia Papagiannaki | |
467 | c1cdc455 | Antony Chazapis | while True: |
468 | c1cdc455 | Antony Chazapis | if node == 0: |
469 | c1cdc455 | Antony Chazapis | break
|
470 | 62f915a1 | Antony Chazapis | props = self.node_get_properties(node)
|
471 | 62f915a1 | Antony Chazapis | if props is None: |
472 | c1cdc455 | Antony Chazapis | break
|
473 | 62f915a1 | Antony Chazapis | parent, path = props |
474 | 62f915a1 | Antony Chazapis | self.statistics_update(parent, population, size, mtime, cluster)
|
475 | 62f915a1 | Antony Chazapis | node = parent |
476 | 2715ade4 | Sofia Papagiannaki | population = 0 # Population isn't recursive |
477 | 2715ade4 | Sofia Papagiannaki | |
478 | 62f915a1 | Antony Chazapis | def statistics_latest(self, node, before=inf, except_cluster=0): |
479 | 62f915a1 | Antony Chazapis | """Return population, total size and last mtime
|
480 | 62f915a1 | Antony Chazapis | for all latest versions under node that
|
481 | 62f915a1 | Antony Chazapis | do not belong to the cluster.
|
482 | 62f915a1 | Antony Chazapis | """
|
483 | 2715ade4 | Sofia Papagiannaki | |
484 | 676edf89 | Antony Chazapis | execute = self.execute
|
485 | 676edf89 | Antony Chazapis | fetchone = self.fetchone
|
486 | 2715ade4 | Sofia Papagiannaki | |
487 | 62f915a1 | Antony Chazapis | # The node.
|
488 | 62f915a1 | Antony Chazapis | props = self.node_get_properties(node)
|
489 | 62f915a1 | Antony Chazapis | if props is None: |
490 | 62f915a1 | Antony Chazapis | return None |
491 | 62f915a1 | Antony Chazapis | parent, path = props |
492 | 2715ade4 | Sofia Papagiannaki | |
493 | 62f915a1 | Antony Chazapis | # The latest version.
|
494 | 33b4e4a6 | Antony Chazapis | q = ("select serial, node, hash, size, type, source, mtime, muser, uuid, checksum, cluster "
|
495 | 585b75e7 | Sofia Papagiannaki | "from versions v "
|
496 | 585b75e7 | Sofia Papagiannaki | "where serial = %s "
|
497 | 62f915a1 | Antony Chazapis | "and cluster != ?")
|
498 | 2715ade4 | Sofia Papagiannaki | subq, args = self._construct_latest_version_subquery(
|
499 | 2715ade4 | Sofia Papagiannaki | node=node, before=before) |
500 | 585b75e7 | Sofia Papagiannaki | execute(q % subq, args + [except_cluster]) |
501 | 676edf89 | Antony Chazapis | props = fetchone() |
502 | 62f915a1 | Antony Chazapis | if props is None: |
503 | 62f915a1 | Antony Chazapis | return None |
504 | 62f915a1 | Antony Chazapis | mtime = props[MTIME] |
505 | 2715ade4 | Sofia Papagiannaki | |
506 | 62f915a1 | Antony Chazapis | # First level, just under node (get population).
|
507 | 62f915a1 | Antony Chazapis | q = ("select count(serial), sum(size), max(mtime) "
|
508 | 62f915a1 | Antony Chazapis | "from versions v "
|
509 | 585b75e7 | Sofia Papagiannaki | "where serial = %s "
|
510 | 62f915a1 | Antony Chazapis | "and cluster != ? "
|
511 | 62f915a1 | Antony Chazapis | "and node in (select node "
|
512 | 2715ade4 | Sofia Papagiannaki | "from nodes "
|
513 | 2715ade4 | Sofia Papagiannaki | "where parent = ?)")
|
514 | 2715ade4 | Sofia Papagiannaki | subq, args = self._construct_latest_version_subquery(
|
515 | 2715ade4 | Sofia Papagiannaki | node=None, before=before)
|
516 | 585b75e7 | Sofia Papagiannaki | execute(q % subq, args + [except_cluster, node]) |
517 | 62f915a1 | Antony Chazapis | r = fetchone() |
518 | 62f915a1 | Antony Chazapis | if r is None: |
519 | 62f915a1 | Antony Chazapis | return None |
520 | 62f915a1 | Antony Chazapis | count = r[0]
|
521 | 62f915a1 | Antony Chazapis | mtime = max(mtime, r[2]) |
522 | 62f915a1 | Antony Chazapis | if count == 0: |
523 | 62f915a1 | Antony Chazapis | return (0, 0, mtime) |
524 | 2715ade4 | Sofia Papagiannaki | |
525 | 62f915a1 | Antony Chazapis | # All children (get size and mtime).
|
526 | 92da0e5a | Antony Chazapis | # This is why the full path is stored.
|
527 | 62f915a1 | Antony Chazapis | q = ("select count(serial), sum(size), max(mtime) "
|
528 | 62f915a1 | Antony Chazapis | "from versions v "
|
529 | 585b75e7 | Sofia Papagiannaki | "where serial = %s "
|
530 | 62f915a1 | Antony Chazapis | "and cluster != ? "
|
531 | 62f915a1 | Antony Chazapis | "and node in (select node "
|
532 | 2715ade4 | Sofia Papagiannaki | "from nodes "
|
533 | 2715ade4 | Sofia Papagiannaki | "where path like ? escape '\\')")
|
534 | 2715ade4 | Sofia Papagiannaki | subq, args = self._construct_latest_version_subquery(
|
535 | 2715ade4 | Sofia Papagiannaki | node=None, before=before)
|
536 | 2715ade4 | Sofia Papagiannaki | execute( |
537 | 2715ade4 | Sofia Papagiannaki | q % subq, args + [except_cluster, self.escape_like(path) + '%']) |
538 | 62f915a1 | Antony Chazapis | r = fetchone() |
539 | 62f915a1 | Antony Chazapis | if r is None: |
540 | 62f915a1 | Antony Chazapis | return None |
541 | 62f915a1 | Antony Chazapis | size = r[1] - props[SIZE]
|
542 | 62f915a1 | Antony Chazapis | mtime = max(mtime, r[2]) |
543 | 62f915a1 | Antony Chazapis | return (count, size, mtime)
|
544 | 2715ade4 | Sofia Papagiannaki | |
545 | 585b75e7 | Sofia Papagiannaki | def nodes_set_latest_version(self, node, serial): |
546 | 2715ade4 | Sofia Papagiannaki | q = ("update nodes set latest_version = ? where node = ?")
|
547 | 585b75e7 | Sofia Papagiannaki | props = (serial, node) |
548 | 585b75e7 | Sofia Papagiannaki | self.execute(q, props)
|
549 | 2715ade4 | Sofia Papagiannaki | |
550 | 33b4e4a6 | Antony Chazapis | def version_create(self, node, hash, size, type, source, muser, uuid, checksum, cluster=0): |
551 | 44ad5860 | Antony Chazapis | """Create a new version from the given properties.
|
552 | 44ad5860 | Antony Chazapis | Return the (serial, mtime) of the new version.
|
553 | 44ad5860 | Antony Chazapis | """
|
554 | 2715ade4 | Sofia Papagiannaki | |
555 | 33b4e4a6 | Antony Chazapis | q = ("insert into versions (node, hash, size, type, source, mtime, muser, uuid, checksum, cluster) "
|
556 | 33b4e4a6 | Antony Chazapis | "values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)")
|
557 | 44ad5860 | Antony Chazapis | mtime = time() |
558 | 2715ade4 | Sofia Papagiannaki | props = (node, hash, size, type, source, mtime, muser, |
559 | 2715ade4 | Sofia Papagiannaki | uuid, checksum, cluster) |
560 | 44ad5860 | Antony Chazapis | serial = self.execute(q, props).lastrowid
|
561 | c1cdc455 | Antony Chazapis | self.statistics_update_ancestors(node, 1, size, mtime, cluster) |
562 | 2715ade4 | Sofia Papagiannaki | |
563 | 585b75e7 | Sofia Papagiannaki | self.nodes_set_latest_version(node, serial)
|
564 | 2715ade4 | Sofia Papagiannaki | |
565 | 44ad5860 | Antony Chazapis | return serial, mtime
|
566 | 2715ade4 | Sofia Papagiannaki | |
567 | cf4a7a7b | Sofia Papagiannaki | def version_lookup(self, node, before=inf, cluster=0, all_props=True): |
568 | 44ad5860 | Antony Chazapis | """Lookup the current version of the given node.
|
569 | 44ad5860 | Antony Chazapis | Return a list with its properties:
|
570 | 2715ade4 | Sofia Papagiannaki | (serial, node, hash, size, type, source, mtime,
|
571 | 2715ade4 | Sofia Papagiannaki | muser, uuid, checksum, cluster)
|
572 | 44ad5860 | Antony Chazapis | or None if the current version is not found in the given cluster.
|
573 | 44ad5860 | Antony Chazapis | """
|
574 | 2715ade4 | Sofia Papagiannaki | |
575 | cf4a7a7b | Sofia Papagiannaki | q = ("select %s "
|
576 | 585b75e7 | Sofia Papagiannaki | "from versions v "
|
577 | 585b75e7 | Sofia Papagiannaki | "where serial = %s "
|
578 | 44ad5860 | Antony Chazapis | "and cluster = ?")
|
579 | 2715ade4 | Sofia Papagiannaki | subq, args = self._construct_latest_version_subquery(
|
580 | 2715ade4 | Sofia Papagiannaki | node=node, before=before) |
581 | cf4a7a7b | Sofia Papagiannaki | if not all_props: |
582 | 585b75e7 | Sofia Papagiannaki | q = q % ("serial", subq)
|
583 | cf4a7a7b | Sofia Papagiannaki | else:
|
584 | 585b75e7 | Sofia Papagiannaki | q = q % ("serial, node, hash, size, type, source, mtime, muser, uuid, checksum, cluster", subq)
|
585 | 2715ade4 | Sofia Papagiannaki | |
586 | 585b75e7 | Sofia Papagiannaki | self.execute(q, args + [cluster])
|
587 | 44ad5860 | Antony Chazapis | props = self.fetchone()
|
588 | 44ad5860 | Antony Chazapis | if props is not None: |
589 | 44ad5860 | Antony Chazapis | return props
|
590 | 44ad5860 | Antony Chazapis | return None |
591 | 4d15c94e | Sofia Papagiannaki | |
592 | cf4a7a7b | Sofia Papagiannaki | def version_lookup_bulk(self, nodes, before=inf, cluster=0, all_props=True): |
593 | 4d15c94e | Sofia Papagiannaki | """Lookup the current versions of the given nodes.
|
594 | 4d15c94e | Sofia Papagiannaki | Return a list with their properties:
|
595 | 4d15c94e | Sofia Papagiannaki | (serial, node, hash, size, type, source, mtime, muser, uuid, checksum, cluster).
|
596 | 4d15c94e | Sofia Papagiannaki | """
|
597 | 2715ade4 | Sofia Papagiannaki | |
598 | 585b75e7 | Sofia Papagiannaki | if not nodes: |
599 | 2715ade4 | Sofia Papagiannaki | return ()
|
600 | cf4a7a7b | Sofia Papagiannaki | q = ("select %s "
|
601 | 4d15c94e | Sofia Papagiannaki | "from versions "
|
602 | 585b75e7 | Sofia Papagiannaki | "where serial in %s "
|
603 | 9ac201e2 | Sofia Papagiannaki | "and cluster = ? %s")
|
604 | 2715ade4 | Sofia Papagiannaki | subq, args = self._construct_latest_versions_subquery(
|
605 | 2715ade4 | Sofia Papagiannaki | nodes=nodes, before=before) |
606 | cf4a7a7b | Sofia Papagiannaki | if not all_props: |
607 | 585b75e7 | Sofia Papagiannaki | q = q % ("serial", subq, '') |
608 | cf4a7a7b | Sofia Papagiannaki | else:
|
609 | 2715ade4 | Sofia Papagiannaki | q = q % ("serial, node, hash, size, type, source, mtime, muser, uuid, checksum, cluster", subq, 'order by node') |
610 | 2715ade4 | Sofia Papagiannaki | |
611 | 585b75e7 | Sofia Papagiannaki | args += [cluster] |
612 | 4d15c94e | Sofia Papagiannaki | self.execute(q, args)
|
613 | 4d15c94e | Sofia Papagiannaki | return self.fetchall() |
614 | 2715ade4 | Sofia Papagiannaki | |
615 | 1f2d1b42 | Antony Chazapis | def version_get_properties(self, serial, keys=(), propnames=_propnames): |
616 | 1f2d1b42 | Antony Chazapis | """Return a sequence of values for the properties of
|
617 | 1f2d1b42 | Antony Chazapis | the version specified by serial and the keys, in the order given.
|
618 | 1f2d1b42 | Antony Chazapis | If keys is empty, return all properties in the order
|
619 | 33b4e4a6 | Antony Chazapis | (serial, node, hash, size, type, source, mtime, muser, uuid, checksum, cluster).
|
620 | 1f2d1b42 | Antony Chazapis | """
|
621 | 2715ade4 | Sofia Papagiannaki | |
622 | 33b4e4a6 | Antony Chazapis | q = ("select serial, node, hash, size, type, source, mtime, muser, uuid, checksum, cluster "
|
623 | 62f915a1 | Antony Chazapis | "from versions "
|
624 | 1f2d1b42 | Antony Chazapis | "where serial = ?")
|
625 | 1f2d1b42 | Antony Chazapis | self.execute(q, (serial,))
|
626 | 1f2d1b42 | Antony Chazapis | r = self.fetchone()
|
627 | 1f2d1b42 | Antony Chazapis | if r is None: |
628 | 1f2d1b42 | Antony Chazapis | return r
|
629 | 2715ade4 | Sofia Papagiannaki | |
630 | 1f2d1b42 | Antony Chazapis | if not keys: |
631 | 1f2d1b42 | Antony Chazapis | return r
|
632 | 1f2d1b42 | Antony Chazapis | return [r[propnames[k]] for k in keys if k in propnames] |
633 | 2715ade4 | Sofia Papagiannaki | |
634 | 33b4e4a6 | Antony Chazapis | def version_put_property(self, serial, key, value): |
635 | 33b4e4a6 | Antony Chazapis | """Set value for the property of version specified by key."""
|
636 | 2715ade4 | Sofia Papagiannaki | |
637 | 33b4e4a6 | Antony Chazapis | if key not in _propnames: |
638 | 33b4e4a6 | Antony Chazapis | return
|
639 | 33b4e4a6 | Antony Chazapis | q = "update versions set %s = ? where serial = ?" % key
|
640 | 33b4e4a6 | Antony Chazapis | self.execute(q, (value, serial))
|
641 | 2715ade4 | Sofia Papagiannaki | |
642 | 44ad5860 | Antony Chazapis | def version_recluster(self, serial, cluster): |
643 | 44ad5860 | Antony Chazapis | """Move the version into another cluster."""
|
644 | 2715ade4 | Sofia Papagiannaki | |
645 | 62f915a1 | Antony Chazapis | props = self.version_get_properties(serial)
|
646 | 62f915a1 | Antony Chazapis | if not props: |
647 | 62f915a1 | Antony Chazapis | return
|
648 | 44ad5860 | Antony Chazapis | node = props[NODE] |
649 | 44ad5860 | Antony Chazapis | size = props[SIZE] |
650 | 44ad5860 | Antony Chazapis | oldcluster = props[CLUSTER] |
651 | 44ad5860 | Antony Chazapis | if cluster == oldcluster:
|
652 | 44ad5860 | Antony Chazapis | return
|
653 | 2715ade4 | Sofia Papagiannaki | |
654 | 62f915a1 | Antony Chazapis | mtime = time() |
655 | c1cdc455 | Antony Chazapis | self.statistics_update_ancestors(node, -1, -size, mtime, oldcluster) |
656 | c1cdc455 | Antony Chazapis | self.statistics_update_ancestors(node, 1, size, mtime, cluster) |
657 | 2715ade4 | Sofia Papagiannaki | |
658 | 62f915a1 | Antony Chazapis | q = "update versions set cluster = ? where serial = ?"
|
659 | c915d3bf | Antony Chazapis | self.execute(q, (cluster, serial))
|
660 | 2715ade4 | Sofia Papagiannaki | |
661 | 62f915a1 | Antony Chazapis | def version_remove(self, serial): |
662 | 62f915a1 | Antony Chazapis | """Remove the serial specified."""
|
663 | 2715ade4 | Sofia Papagiannaki | |
664 | 5161c672 | Antony Chazapis | props = self.version_get_properties(serial)
|
665 | 62f915a1 | Antony Chazapis | if not props: |
666 | 62f915a1 | Antony Chazapis | return
|
667 | 62f915a1 | Antony Chazapis | node = props[NODE] |
668 | 5161c672 | Antony Chazapis | hash = props[HASH] |
669 | 62f915a1 | Antony Chazapis | size = props[SIZE] |
670 | 62f915a1 | Antony Chazapis | cluster = props[CLUSTER] |
671 | 2715ade4 | Sofia Papagiannaki | |
672 | 62f915a1 | Antony Chazapis | mtime = time() |
673 | 62f915a1 | Antony Chazapis | self.statistics_update_ancestors(node, -1, -size, mtime, cluster) |
674 | 2715ade4 | Sofia Papagiannaki | |
675 | 62f915a1 | Antony Chazapis | q = "delete from versions where serial = ?"
|
676 | 62f915a1 | Antony Chazapis | self.execute(q, (serial,))
|
677 | 2715ade4 | Sofia Papagiannaki | |
678 | 585b75e7 | Sofia Papagiannaki | props = self.version_lookup(node, cluster=cluster, all_props=False) |
679 | 585b75e7 | Sofia Papagiannaki | if props:
|
680 | 2715ade4 | Sofia Papagiannaki | self.nodes_set_latest_version(node, props[0]) |
681 | 813e42e5 | Antony Chazapis | return hash, size |
682 | 2715ade4 | Sofia Papagiannaki | |
683 | 4819d34f | Antony Chazapis | def attribute_get(self, serial, domain, keys=()): |
684 | 44ad5860 | Antony Chazapis | """Return a list of (key, value) pairs of the version specified by serial.
|
685 | 1f2d1b42 | Antony Chazapis | If keys is empty, return all attributes.
|
686 | 1f2d1b42 | Antony Chazapis | Othwerise, return only those specified.
|
687 | 1f2d1b42 | Antony Chazapis | """
|
688 | 2715ade4 | Sofia Papagiannaki | |
689 | 1f2d1b42 | Antony Chazapis | execute = self.execute
|
690 | 1f2d1b42 | Antony Chazapis | if keys:
|
691 | 1f2d1b42 | Antony Chazapis | marks = ','.join('?' for k in keys) |
692 | 1f2d1b42 | Antony Chazapis | q = ("select key, value from attributes "
|
693 | 4819d34f | Antony Chazapis | "where key in (%s) and serial = ? and domain = ?" % (marks,))
|
694 | 4819d34f | Antony Chazapis | execute(q, keys + (serial, domain)) |
695 | 1f2d1b42 | Antony Chazapis | else:
|
696 | 059857e2 | Antony Chazapis | q = "select key, value from attributes where serial = ? and domain = ?"
|
697 | 059857e2 | Antony Chazapis | execute(q, (serial, domain)) |
698 | 1f2d1b42 | Antony Chazapis | return self.fetchall() |
699 | 2715ade4 | Sofia Papagiannaki | |
700 | 4819d34f | Antony Chazapis | def attribute_set(self, serial, domain, items): |
701 | 44ad5860 | Antony Chazapis | """Set the attributes of the version specified by serial.
|
702 | 1f2d1b42 | Antony Chazapis | Receive attributes as an iterable of (key, value) pairs.
|
703 | 1f2d1b42 | Antony Chazapis | """
|
704 | 2715ade4 | Sofia Papagiannaki | |
705 | 4819d34f | Antony Chazapis | q = ("insert or replace into attributes (serial, domain, key, value) "
|
706 | 4819d34f | Antony Chazapis | "values (?, ?, ?, ?)")
|
707 | 4819d34f | Antony Chazapis | self.executemany(q, ((serial, domain, k, v) for k, v in items)) |
708 | 2715ade4 | Sofia Papagiannaki | |
709 | 4819d34f | Antony Chazapis | def attribute_del(self, serial, domain, keys=()): |
710 | 44ad5860 | Antony Chazapis | """Delete attributes of the version specified by serial.
|
711 | 1f2d1b42 | Antony Chazapis | If keys is empty, delete all attributes.
|
712 | 1f2d1b42 | Antony Chazapis | Otherwise delete those specified.
|
713 | 1f2d1b42 | Antony Chazapis | """
|
714 | 2715ade4 | Sofia Papagiannaki | |
715 | 1f2d1b42 | Antony Chazapis | if keys:
|
716 | 4819d34f | Antony Chazapis | q = "delete from attributes where serial = ? and domain = ? and key = ?"
|
717 | 4819d34f | Antony Chazapis | self.executemany(q, ((serial, domain, key) for key in keys)) |
718 | 1f2d1b42 | Antony Chazapis | else:
|
719 | 4819d34f | Antony Chazapis | q = "delete from attributes where serial = ? and domain = ?"
|
720 | 4819d34f | Antony Chazapis | self.execute(q, (serial, domain))
|
721 | 2715ade4 | Sofia Papagiannaki | |
722 | 44ad5860 | Antony Chazapis | def attribute_copy(self, source, dest): |
723 | 1f2d1b42 | Antony Chazapis | q = ("insert or replace into attributes "
|
724 | 4819d34f | Antony Chazapis | "select ?, domain, key, value from attributes "
|
725 | 1f2d1b42 | Antony Chazapis | "where serial = ?")
|
726 | 1f2d1b42 | Antony Chazapis | self.execute(q, (dest, source))
|
727 | 2715ade4 | Sofia Papagiannaki | |
728 | 4819d34f | Antony Chazapis | def _construct_filters(self, domain, filterq): |
729 | 4819d34f | Antony Chazapis | if not domain or not filterq: |
730 | 60b8a083 | Antony Chazapis | return None, None |
731 | 2715ade4 | Sofia Papagiannaki | |
732 | 95d47e1a | Antony Chazapis | subqlist = [] |
733 | 95d47e1a | Antony Chazapis | append = subqlist.append |
734 | 4819d34f | Antony Chazapis | included, excluded, opers = parse_filters(filterq) |
735 | 95d47e1a | Antony Chazapis | args = [] |
736 | 2715ade4 | Sofia Papagiannaki | |
737 | 95d47e1a | Antony Chazapis | if included:
|
738 | c7c0790f | chazapis | subq = "exists (select 1 from attributes where serial = v.serial and domain = ? and "
|
739 | c7c0790f | chazapis | subq += "(" + ' or '.join(('key = ?' for x in included)) + ")" |
740 | c7c0790f | chazapis | subq += ")"
|
741 | c7c0790f | chazapis | args += [domain] |
742 | 95d47e1a | Antony Chazapis | args += included |
743 | 95d47e1a | Antony Chazapis | append(subq) |
744 | 2715ade4 | Sofia Papagiannaki | |
745 | 95d47e1a | Antony Chazapis | if excluded:
|
746 | c7c0790f | chazapis | subq = "not exists (select 1 from attributes where serial = v.serial and domain = ? and "
|
747 | c7c0790f | chazapis | subq += "(" + ' or '.join(('key = ?' for x in excluded)) + ")" |
748 | c7c0790f | chazapis | subq += ")"
|
749 | c7c0790f | chazapis | args += [domain] |
750 | 95d47e1a | Antony Chazapis | args += excluded |
751 | 95d47e1a | Antony Chazapis | append(subq) |
752 | 2715ade4 | Sofia Papagiannaki | |
753 | 95d47e1a | Antony Chazapis | if opers:
|
754 | 95d47e1a | Antony Chazapis | for k, o, v in opers: |
755 | 6b2f11b4 | Antony Chazapis | subq = "exists (select 1 from attributes where serial = v.serial and domain = ? and "
|
756 | 6b2f11b4 | Antony Chazapis | subq += "key = ? and value %s ?" % (o,)
|
757 | 6b2f11b4 | Antony Chazapis | subq += ")"
|
758 | 6b2f11b4 | Antony Chazapis | args += [domain, k, v] |
759 | 6b2f11b4 | Antony Chazapis | append(subq) |
760 | 2715ade4 | Sofia Papagiannaki | |
761 | 95d47e1a | Antony Chazapis | if not subqlist: |
762 | 95d47e1a | Antony Chazapis | return None, None |
763 | 2715ade4 | Sofia Papagiannaki | |
764 | c7c0790f | chazapis | subq = ' and ' + ' and '.join(subqlist) |
765 | 2715ade4 | Sofia Papagiannaki | |
766 | 60b8a083 | Antony Chazapis | return subq, args
|
767 | 2715ade4 | Sofia Papagiannaki | |
768 | 60b8a083 | Antony Chazapis | def _construct_paths(self, pathq): |
769 | 60b8a083 | Antony Chazapis | if not pathq: |
770 | 60b8a083 | Antony Chazapis | return None, None |
771 | 2715ade4 | Sofia Papagiannaki | |
772 | d57eaad4 | Antony Chazapis | subqlist = [] |
773 | d57eaad4 | Antony Chazapis | args = [] |
774 | d57eaad4 | Antony Chazapis | for path, match in pathq: |
775 | d57eaad4 | Antony Chazapis | if match == MATCH_PREFIX:
|
776 | d57eaad4 | Antony Chazapis | subqlist.append("n.path like ? escape '\\'")
|
777 | d57eaad4 | Antony Chazapis | args.append(self.escape_like(path) + '%') |
778 | d57eaad4 | Antony Chazapis | elif match == MATCH_EXACT:
|
779 | d57eaad4 | Antony Chazapis | subqlist.append("n.path = ?")
|
780 | d57eaad4 | Antony Chazapis | args.append(path) |
781 | 2715ade4 | Sofia Papagiannaki | |
782 | d57eaad4 | Antony Chazapis | subq = ' and (' + ' or '.join(subqlist) + ')' |
783 | d57eaad4 | Antony Chazapis | args = tuple(args)
|
784 | 2715ade4 | Sofia Papagiannaki | |
785 | 60b8a083 | Antony Chazapis | return subq, args
|
786 | 2715ade4 | Sofia Papagiannaki | |
787 | 7ff57991 | Antony Chazapis | def _construct_size(self, sizeq): |
788 | 7ff57991 | Antony Chazapis | if not sizeq or len(sizeq) != 2: |
789 | 7ff57991 | Antony Chazapis | return None, None |
790 | 2715ade4 | Sofia Papagiannaki | |
791 | 7ff57991 | Antony Chazapis | subq = ''
|
792 | 7ff57991 | Antony Chazapis | args = [] |
793 | 7ff57991 | Antony Chazapis | if sizeq[0]: |
794 | 7ff57991 | Antony Chazapis | subq += " and v.size >= ?"
|
795 | 7ff57991 | Antony Chazapis | args += [sizeq[0]]
|
796 | 7ff57991 | Antony Chazapis | if sizeq[1]: |
797 | 7ff57991 | Antony Chazapis | subq += " and v.size < ?"
|
798 | 7ff57991 | Antony Chazapis | args += [sizeq[1]]
|
799 | 2715ade4 | Sofia Papagiannaki | |
800 | 7ff57991 | Antony Chazapis | return subq, args
|
801 | 2715ade4 | Sofia Papagiannaki | |
802 | 585b75e7 | Sofia Papagiannaki | def _construct_versions_nodes_latest_version_subquery(self, before=inf): |
803 | 585b75e7 | Sofia Papagiannaki | if before == inf:
|
804 | 585b75e7 | Sofia Papagiannaki | q = ("n.latest_version ")
|
805 | 585b75e7 | Sofia Papagiannaki | args = [] |
806 | 585b75e7 | Sofia Papagiannaki | else:
|
807 | 585b75e7 | Sofia Papagiannaki | q = ("(select max(serial) "
|
808 | 2715ade4 | Sofia Papagiannaki | "from versions "
|
809 | 2715ade4 | Sofia Papagiannaki | "where node = v.node and mtime < ?) ")
|
810 | 585b75e7 | Sofia Papagiannaki | args = [before] |
811 | 585b75e7 | Sofia Papagiannaki | return q, args
|
812 | 2715ade4 | Sofia Papagiannaki | |
813 | 585b75e7 | Sofia Papagiannaki | def _construct_latest_version_subquery(self, node=None, before=inf): |
814 | 585b75e7 | Sofia Papagiannaki | where_cond = "node = v.node"
|
815 | 585b75e7 | Sofia Papagiannaki | args = [] |
816 | 585b75e7 | Sofia Papagiannaki | if node:
|
817 | 585b75e7 | Sofia Papagiannaki | where_cond = "node = ? "
|
818 | 585b75e7 | Sofia Papagiannaki | args = [node] |
819 | 2715ade4 | Sofia Papagiannaki | |
820 | 585b75e7 | Sofia Papagiannaki | if before == inf:
|
821 | 585b75e7 | Sofia Papagiannaki | q = ("(select latest_version "
|
822 | 2715ade4 | Sofia Papagiannaki | "from nodes "
|
823 | 2715ade4 | Sofia Papagiannaki | "where %s) ")
|
824 | 585b75e7 | Sofia Papagiannaki | else:
|
825 | 585b75e7 | Sofia Papagiannaki | q = ("(select max(serial) "
|
826 | 2715ade4 | Sofia Papagiannaki | "from versions "
|
827 | 2715ade4 | Sofia Papagiannaki | "where %s and mtime < ?) ")
|
828 | 585b75e7 | Sofia Papagiannaki | args += [before] |
829 | 585b75e7 | Sofia Papagiannaki | return q % where_cond, args
|
830 | 2715ade4 | Sofia Papagiannaki | |
831 | 585b75e7 | Sofia Papagiannaki | def _construct_latest_versions_subquery(self, nodes=(), before=inf): |
832 | 585b75e7 | Sofia Papagiannaki | where_cond = ""
|
833 | 585b75e7 | Sofia Papagiannaki | args = [] |
834 | 585b75e7 | Sofia Papagiannaki | if nodes:
|
835 | 585b75e7 | Sofia Papagiannaki | where_cond = "node in (%s) " % ','.join('?' for node in nodes) |
836 | 585b75e7 | Sofia Papagiannaki | args = nodes |
837 | 2715ade4 | Sofia Papagiannaki | |
838 | 585b75e7 | Sofia Papagiannaki | if before == inf:
|
839 | 585b75e7 | Sofia Papagiannaki | q = ("(select latest_version "
|
840 | 2715ade4 | Sofia Papagiannaki | "from nodes "
|
841 | 2715ade4 | Sofia Papagiannaki | "where %s ) ")
|
842 | 585b75e7 | Sofia Papagiannaki | else:
|
843 | 585b75e7 | Sofia Papagiannaki | q = ("(select max(serial) "
|
844 | 2715ade4 | Sofia Papagiannaki | "from versions "
|
845 | 2715ade4 | Sofia Papagiannaki | "where %s and mtime < ? group by node) ")
|
846 | 585b75e7 | Sofia Papagiannaki | args += [before] |
847 | 585b75e7 | Sofia Papagiannaki | return q % where_cond, args
|
848 | 2715ade4 | Sofia Papagiannaki | |
849 | 78348987 | Sofia Papagiannaki | def latest_attribute_keys(self, parent, domain, before=inf, except_cluster=0, pathq=None): |
850 | 676edf89 | Antony Chazapis | """Return a list with all keys pairs defined
|
851 | 676edf89 | Antony Chazapis | for all latest versions under parent that
|
852 | 676edf89 | Antony Chazapis | do not belong to the cluster.
|
853 | 676edf89 | Antony Chazapis | """
|
854 | 2715ade4 | Sofia Papagiannaki | |
855 | 78348987 | Sofia Papagiannaki | pathq = pathq or []
|
856 | 78348987 | Sofia Papagiannaki | |
857 | 676edf89 | Antony Chazapis | # TODO: Use another table to store before=inf results.
|
858 | 60b8a083 | Antony Chazapis | q = ("select distinct a.key "
|
859 | 676edf89 | Antony Chazapis | "from attributes a, versions v, nodes n "
|
860 | 585b75e7 | Sofia Papagiannaki | "where v.serial = %s "
|
861 | 676edf89 | Antony Chazapis | "and v.cluster != ? "
|
862 | 676edf89 | Antony Chazapis | "and v.node in (select node "
|
863 | 2715ade4 | Sofia Papagiannaki | "from nodes "
|
864 | 2715ade4 | Sofia Papagiannaki | "where parent = ?) "
|
865 | 676edf89 | Antony Chazapis | "and a.serial = v.serial "
|
866 | 4819d34f | Antony Chazapis | "and a.domain = ? "
|
867 | 676edf89 | Antony Chazapis | "and n.node = v.node")
|
868 | 2715ade4 | Sofia Papagiannaki | subq, subargs = self._construct_latest_version_subquery(
|
869 | 2715ade4 | Sofia Papagiannaki | node=None, before=before)
|
870 | 585b75e7 | Sofia Papagiannaki | args = subargs + [except_cluster, parent, domain] |
871 | 585b75e7 | Sofia Papagiannaki | q = q % subq |
872 | 60b8a083 | Antony Chazapis | subq, subargs = self._construct_paths(pathq)
|
873 | 60b8a083 | Antony Chazapis | if subq is not None: |
874 | 60b8a083 | Antony Chazapis | q += subq |
875 | 60b8a083 | Antony Chazapis | args += subargs |
876 | 676edf89 | Antony Chazapis | self.execute(q, args)
|
877 | 676edf89 | Antony Chazapis | return [r[0] for r in self.fetchall()] |
878 | 2715ade4 | Sofia Papagiannaki | |
879 | 60b8a083 | Antony Chazapis | def latest_version_list(self, parent, prefix='', delimiter=None, |
880 | 60b8a083 | Antony Chazapis | start='', limit=10000, before=inf, |
881 | 371d907a | Antony Chazapis | except_cluster=0, pathq=[], domain=None, |
882 | 371d907a | Antony Chazapis | filterq=[], sizeq=None, all_props=False): |
883 | 60b8a083 | Antony Chazapis | """Return a (list of (path, serial) tuples, list of common prefixes)
|
884 | 60b8a083 | Antony Chazapis | for the current versions of the paths with the given parent,
|
885 | 60b8a083 | Antony Chazapis | matching the following criteria.
|
886 | 2715ade4 | Sofia Papagiannaki |
|
887 | 60b8a083 | Antony Chazapis | The property tuple for a version is returned if all
|
888 | 60b8a083 | Antony Chazapis | of these conditions are true:
|
889 | 2715ade4 | Sofia Papagiannaki |
|
890 | 60b8a083 | Antony Chazapis | a. parent matches
|
891 | 2715ade4 | Sofia Papagiannaki |
|
892 | 60b8a083 | Antony Chazapis | b. path > start
|
893 | 2715ade4 | Sofia Papagiannaki |
|
894 | 60b8a083 | Antony Chazapis | c. path starts with prefix (and paths in pathq)
|
895 | 2715ade4 | Sofia Papagiannaki |
|
896 | 60b8a083 | Antony Chazapis | d. version is the max up to before
|
897 | 2715ade4 | Sofia Papagiannaki |
|
898 | 60b8a083 | Antony Chazapis | e. version is not in cluster
|
899 | 2715ade4 | Sofia Papagiannaki |
|
900 | 60b8a083 | Antony Chazapis | f. the path does not have the delimiter occuring
|
901 | 60b8a083 | Antony Chazapis | after the prefix, or ends with the delimiter
|
902 | 2715ade4 | Sofia Papagiannaki |
|
903 | 60b8a083 | Antony Chazapis | g. serial matches the attribute filter query.
|
904 | 2715ade4 | Sofia Papagiannaki |
|
905 | 60b8a083 | Antony Chazapis | A filter query is a comma-separated list of
|
906 | 60b8a083 | Antony Chazapis | terms in one of these three forms:
|
907 | 2715ade4 | Sofia Papagiannaki |
|
908 | 60b8a083 | Antony Chazapis | key
|
909 | 60b8a083 | Antony Chazapis | an attribute with this key must exist
|
910 | 2715ade4 | Sofia Papagiannaki |
|
911 | 60b8a083 | Antony Chazapis | !key
|
912 | 60b8a083 | Antony Chazapis | an attribute with this key must not exist
|
913 | 2715ade4 | Sofia Papagiannaki |
|
914 | 60b8a083 | Antony Chazapis | key ?op value
|
915 | 60b8a083 | Antony Chazapis | the attribute with this key satisfies the value
|
916 | 1713c946 | Antony Chazapis | where ?op is one of =, != <=, >=, <, >.
|
917 | 2715ade4 | Sofia Papagiannaki |
|
918 | 7ff57991 | Antony Chazapis | h. the size is in the range set by sizeq
|
919 | 2715ade4 | Sofia Papagiannaki |
|
920 | 60b8a083 | Antony Chazapis | The list of common prefixes includes the prefixes
|
921 | 60b8a083 | Antony Chazapis | matching up to the first delimiter after prefix,
|
922 | 60b8a083 | Antony Chazapis | and are reported only once, as "virtual directories".
|
923 | 60b8a083 | Antony Chazapis | The delimiter is included in the prefixes.
|
924 | 2715ade4 | Sofia Papagiannaki |
|
925 | 60b8a083 | Antony Chazapis | If arguments are None, then the corresponding matching rule
|
926 | 60b8a083 | Antony Chazapis | will always match.
|
927 | 2715ade4 | Sofia Papagiannaki |
|
928 | 60b8a083 | Antony Chazapis | Limit applies to the first list of tuples returned.
|
929 | 2715ade4 | Sofia Papagiannaki |
|
930 | 371d907a | Antony Chazapis | If all_props is True, return all properties after path, not just serial.
|
931 | 60b8a083 | Antony Chazapis | """
|
932 | 2715ade4 | Sofia Papagiannaki | |
933 | 60b8a083 | Antony Chazapis | execute = self.execute
|
934 | 2715ade4 | Sofia Papagiannaki | |
935 | 60b8a083 | Antony Chazapis | if not start or start < prefix: |
936 | 60b8a083 | Antony Chazapis | start = strprevling(prefix) |
937 | 60b8a083 | Antony Chazapis | nextling = strnextling(prefix) |
938 | 2715ade4 | Sofia Papagiannaki | |
939 | 371d907a | Antony Chazapis | q = ("select distinct n.path, %s "
|
940 | c7c0790f | chazapis | "from versions v, nodes n "
|
941 | 585b75e7 | Sofia Papagiannaki | "where v.serial = %s "
|
942 | 60b8a083 | Antony Chazapis | "and v.cluster != ? "
|
943 | 60b8a083 | Antony Chazapis | "and v.node in (select node "
|
944 | 2715ade4 | Sofia Papagiannaki | "from nodes "
|
945 | 2715ade4 | Sofia Papagiannaki | "where parent = ?) "
|
946 | 60b8a083 | Antony Chazapis | "and n.node = v.node "
|
947 | 60b8a083 | Antony Chazapis | "and n.path > ? and n.path < ?")
|
948 | 2715ade4 | Sofia Papagiannaki | subq, args = self._construct_versions_nodes_latest_version_subquery(
|
949 | 2715ade4 | Sofia Papagiannaki | before) |
950 | 371d907a | Antony Chazapis | if not all_props: |
951 | 585b75e7 | Sofia Papagiannaki | q = q % ("v.serial", subq)
|
952 | 371d907a | Antony Chazapis | else:
|
953 | 585b75e7 | Sofia Papagiannaki | q = q % ("v.serial, v.node, v.hash, v.size, v.type, v.source, v.mtime, v.muser, v.uuid, v.checksum, v.cluster", subq)
|
954 | 585b75e7 | Sofia Papagiannaki | args += [except_cluster, parent, start, nextling] |
955 | 585b75e7 | Sofia Papagiannaki | start_index = len(args) - 2 |
956 | 2715ade4 | Sofia Papagiannaki | |
957 | 60b8a083 | Antony Chazapis | subq, subargs = self._construct_paths(pathq)
|
958 | 60b8a083 | Antony Chazapis | if subq is not None: |
959 | 60b8a083 | Antony Chazapis | q += subq |
960 | 60b8a083 | Antony Chazapis | args += subargs |
961 | 7ff57991 | Antony Chazapis | subq, subargs = self._construct_size(sizeq)
|
962 | 7ff57991 | Antony Chazapis | if subq is not None: |
963 | 7ff57991 | Antony Chazapis | q += subq |
964 | 7ff57991 | Antony Chazapis | args += subargs |
965 | 4819d34f | Antony Chazapis | subq, subargs = self._construct_filters(domain, filterq)
|
966 | 60b8a083 | Antony Chazapis | if subq is not None: |
967 | 60b8a083 | Antony Chazapis | q += subq |
968 | 60b8a083 | Antony Chazapis | args += subargs |
969 | 60b8a083 | Antony Chazapis | else:
|
970 | 60b8a083 | Antony Chazapis | q = q.replace("attributes a, ", "") |
971 | 60b8a083 | Antony Chazapis | q = q.replace("and a.serial = v.serial ", "") |
972 | 60b8a083 | Antony Chazapis | q += " order by n.path"
|
973 | 2715ade4 | Sofia Papagiannaki | |
974 | 60b8a083 | Antony Chazapis | if not delimiter: |
975 | 60b8a083 | Antony Chazapis | q += " limit ?"
|
976 | 60b8a083 | Antony Chazapis | args.append(limit) |
977 | 60b8a083 | Antony Chazapis | execute(q, args) |
978 | 60b8a083 | Antony Chazapis | return self.fetchall(), () |
979 | 2715ade4 | Sofia Papagiannaki | |
980 | 60b8a083 | Antony Chazapis | pfz = len(prefix)
|
981 | 60b8a083 | Antony Chazapis | dz = len(delimiter)
|
982 | 60b8a083 | Antony Chazapis | count = 0
|
983 | 60b8a083 | Antony Chazapis | fetchone = self.fetchone
|
984 | 60b8a083 | Antony Chazapis | prefixes = [] |
985 | 60b8a083 | Antony Chazapis | pappend = prefixes.append |
986 | 60b8a083 | Antony Chazapis | matches = [] |
987 | 60b8a083 | Antony Chazapis | mappend = matches.append |
988 | 2715ade4 | Sofia Papagiannaki | |
989 | 60b8a083 | Antony Chazapis | execute(q, args) |
990 | 60b8a083 | Antony Chazapis | while True: |
991 | 60b8a083 | Antony Chazapis | props = fetchone() |
992 | 60b8a083 | Antony Chazapis | if props is None: |
993 | 60b8a083 | Antony Chazapis | break
|
994 | 371d907a | Antony Chazapis | path = props[0]
|
995 | 371d907a | Antony Chazapis | serial = props[1]
|
996 | 60b8a083 | Antony Chazapis | idx = path.find(delimiter, pfz) |
997 | 2715ade4 | Sofia Papagiannaki | |
998 | 60b8a083 | Antony Chazapis | if idx < 0: |
999 | 60b8a083 | Antony Chazapis | mappend(props) |
1000 | 60b8a083 | Antony Chazapis | count += 1
|
1001 | 60b8a083 | Antony Chazapis | if count >= limit:
|
1002 | 60b8a083 | Antony Chazapis | break
|
1003 | 60b8a083 | Antony Chazapis | continue
|
1004 | 2715ade4 | Sofia Papagiannaki | |
1005 | 60b8a083 | Antony Chazapis | if idx + dz == len(path): |
1006 | 60b8a083 | Antony Chazapis | mappend(props) |
1007 | 60b8a083 | Antony Chazapis | count += 1
|
1008 | 2715ade4 | Sofia Papagiannaki | continue # Get one more, in case there is a path. |
1009 | 4cc00e08 | Antony Chazapis | pf = path[:idx + dz] |
1010 | 4cc00e08 | Antony Chazapis | pappend(pf) |
1011 | 2715ade4 | Sofia Papagiannaki | if count >= limit:
|
1012 | 60b8a083 | Antony Chazapis | break
|
1013 | 2715ade4 | Sofia Papagiannaki | |
1014 | 2715ade4 | Sofia Papagiannaki | args[start_index] = strnextling(pf) # New start.
|
1015 | 60b8a083 | Antony Chazapis | execute(q, args) |
1016 | 2715ade4 | Sofia Papagiannaki | |
1017 | 60b8a083 | Antony Chazapis | return matches, prefixes
|
1018 | 2715ade4 | Sofia Papagiannaki | |
1019 | 2bbf1544 | Georgios D. Tsoukalas | def latest_uuid(self, uuid, cluster): |
1020 | 2bbf1544 | Georgios D. Tsoukalas | """Return the latest version of the given uuid and cluster.
|
1021 | 2bbf1544 | Georgios D. Tsoukalas |
|
1022 | 2bbf1544 | Georgios D. Tsoukalas | Return a (path, serial) tuple.
|
1023 | 2bbf1544 | Georgios D. Tsoukalas | If cluster is None, all clusters are considered.
|
1024 | 2bbf1544 | Georgios D. Tsoukalas |
|
1025 | 2bbf1544 | Georgios D. Tsoukalas | """
|
1026 | 2bbf1544 | Georgios D. Tsoukalas | if cluster is not None: |
1027 | 2bbf1544 | Georgios D. Tsoukalas | cluster_where = "and cluster = ?"
|
1028 | 2bbf1544 | Georgios D. Tsoukalas | args = (uuid, int(cluster))
|
1029 | 2bbf1544 | Georgios D. Tsoukalas | else:
|
1030 | 2bbf1544 | Georgios D. Tsoukalas | cluster_where = ""
|
1031 | 2bbf1544 | Georgios D. Tsoukalas | args = (uuid,) |
1032 | 2715ade4 | Sofia Papagiannaki | |
1033 | 37bee317 | Antony Chazapis | q = ("select n.path, v.serial "
|
1034 | 37bee317 | Antony Chazapis | "from versions v, nodes n "
|
1035 | 37bee317 | Antony Chazapis | "where v.serial = (select max(serial) "
|
1036 | 2715ade4 | Sofia Papagiannaki | "from versions "
|
1037 | 2bbf1544 | Georgios D. Tsoukalas | "where uuid = ? %s) "
|
1038 | 2bbf1544 | Georgios D. Tsoukalas | "and n.node = v.node") % cluster_where
|
1039 | 2bbf1544 | Georgios D. Tsoukalas | self.execute(q, args)
|
1040 | 37bee317 | Antony Chazapis | return self.fetchone() |
1041 | 5576e6dd | Sofia Papagiannaki | |
1042 | 7736e11a | Sofia Papagiannaki | def domain_object_list(self, domain, paths, cluster=None): |
1043 | 5576e6dd | Sofia Papagiannaki | """Return a list of (path, property list, attribute dictionary)
|
1044 | 5576e6dd | Sofia Papagiannaki | for the objects in the specific domain and cluster.
|
1045 | 5576e6dd | Sofia Papagiannaki | """
|
1046 | 5576e6dd | Sofia Papagiannaki | |
1047 | 5576e6dd | Sofia Papagiannaki | q = ("select n.path, v.serial, v.node, v.hash, "
|
1048 | 5576e6dd | Sofia Papagiannaki | "v.size, v.type, v.source, v.mtime, v.muser, "
|
1049 | 5576e6dd | Sofia Papagiannaki | "v.uuid, v.checksum, v.cluster, a.key, a.value "
|
1050 | 5576e6dd | Sofia Papagiannaki | "from nodes n, versions v, attributes a "
|
1051 | 5576e6dd | Sofia Papagiannaki | "where n.node = v.node and "
|
1052 | 5576e6dd | Sofia Papagiannaki | "n.latest_version = v.serial and "
|
1053 | 5576e6dd | Sofia Papagiannaki | "v.serial = a.serial and "
|
1054 | 7736e11a | Sofia Papagiannaki | "a.domain = ? and "
|
1055 | a5b0519c | Georgios D. Tsoukalas | "n.path in (%s)") % ','.join('?' for _ in paths) |
1056 | 5576e6dd | Sofia Papagiannaki | args = [domain] |
1057 | 7736e11a | Sofia Papagiannaki | map(args.append, paths)
|
1058 | 5576e6dd | Sofia Papagiannaki | if cluster != None: |
1059 | 5576e6dd | Sofia Papagiannaki | q += "and v.cluster = ?"
|
1060 | 5576e6dd | Sofia Papagiannaki | args += [cluster] |
1061 | 5576e6dd | Sofia Papagiannaki | |
1062 | 5576e6dd | Sofia Papagiannaki | self.execute(q, args)
|
1063 | 5576e6dd | Sofia Papagiannaki | rows = self.fetchall()
|
1064 | 5576e6dd | Sofia Papagiannaki | |
1065 | 5576e6dd | Sofia Papagiannaki | group_by = itemgetter(slice(12)) |
1066 | 5576e6dd | Sofia Papagiannaki | rows.sort(key = group_by) |
1067 | 5576e6dd | Sofia Papagiannaki | groups = groupby(rows, group_by) |
1068 | 5576e6dd | Sofia Papagiannaki | return [(k[0], k[1:], dict([i[12:] for i in data])) \ |
1069 | 5576e6dd | Sofia Papagiannaki | for (k, data) in groups] |