root / snf-astakos-app / astakos / im / management / commands / resource-modify.py @ 398a9604
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1 | 720955ff | Giorgos Korfiatis | # Copyright 2013 GRNET S.A. All rights reserved.
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2 | 720955ff | Giorgos Korfiatis | #
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3 | 720955ff | Giorgos Korfiatis | # Redistribution and use in source and binary forms, with or
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4 | 720955ff | Giorgos Korfiatis | # without modification, are permitted provided that the following
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5 | 720955ff | Giorgos Korfiatis | # conditions are met:
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6 | 720955ff | Giorgos Korfiatis | #
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7 | 720955ff | Giorgos Korfiatis | # 1. Redistributions of source code must retain the above
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8 | 720955ff | Giorgos Korfiatis | # copyright notice, this list of conditions and the following
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9 | 720955ff | Giorgos Korfiatis | # disclaimer.
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10 | 720955ff | Giorgos Korfiatis | #
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11 | 720955ff | Giorgos Korfiatis | # 2. Redistributions in binary form must reproduce the above
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12 | 720955ff | Giorgos Korfiatis | # copyright notice, this list of conditions and the following
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13 | 720955ff | Giorgos Korfiatis | # disclaimer in the documentation and/or other materials
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14 | 720955ff | Giorgos Korfiatis | # provided with the distribution.
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15 | 720955ff | Giorgos Korfiatis | #
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16 | 720955ff | Giorgos Korfiatis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | 720955ff | Giorgos Korfiatis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | 720955ff | Giorgos Korfiatis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | 720955ff | Giorgos Korfiatis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | 720955ff | Giorgos Korfiatis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | 720955ff | Giorgos Korfiatis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | 720955ff | Giorgos Korfiatis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | 720955ff | Giorgos Korfiatis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | 720955ff | Giorgos Korfiatis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | 720955ff | Giorgos Korfiatis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | 720955ff | Giorgos Korfiatis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | 720955ff | Giorgos Korfiatis | # POSSIBILITY OF SUCH DAMAGE.
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28 | 720955ff | Giorgos Korfiatis | #
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29 | 720955ff | Giorgos Korfiatis | # The views and conclusions contained in the software and
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30 | 720955ff | Giorgos Korfiatis | # documentation are those of the authors and should not be
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31 | 720955ff | Giorgos Korfiatis | # interpreted as representing official policies, either expressed
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32 | 720955ff | Giorgos Korfiatis | # or implied, of GRNET S.A.
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33 | 720955ff | Giorgos Korfiatis | |
34 | 720955ff | Giorgos Korfiatis | from optparse import make_option |
35 | 720955ff | Giorgos Korfiatis | from django.core.management.base import BaseCommand, CommandError |
36 | 3a527b3a | Giorgos Korfiatis | from django.utils import simplejson as json |
37 | 720955ff | Giorgos Korfiatis | |
38 | 720955ff | Giorgos Korfiatis | from astakos.im.models import Resource |
39 | 720955ff | Giorgos Korfiatis | from astakos.im.resources import update_resource |
40 | 720955ff | Giorgos Korfiatis | |
41 | 720955ff | Giorgos Korfiatis | |
42 | 720955ff | Giorgos Korfiatis | class Command(BaseCommand): |
43 | 720955ff | Giorgos Korfiatis | args = "<resource name>"
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44 | 3a527b3a | Giorgos Korfiatis | help = ("Modify a resource (currently only change the default base quota)."
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45 | 3a527b3a | Giorgos Korfiatis | "\nIf no resource is specified, all resources are considered.")
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46 | 720955ff | Giorgos Korfiatis | |
47 | 720955ff | Giorgos Korfiatis | option_list = BaseCommand.option_list + ( |
48 | 720955ff | Giorgos Korfiatis | make_option('--limit',
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49 | 720955ff | Giorgos Korfiatis | dest='limit',
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50 | 3a527b3a | Giorgos Korfiatis | help="Specify default base quota"),
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51 | 3a527b3a | Giorgos Korfiatis | make_option('--interactive',
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52 | 3a527b3a | Giorgos Korfiatis | action='store_true',
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53 | 3a527b3a | Giorgos Korfiatis | dest='interactive',
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54 | 3a527b3a | Giorgos Korfiatis | default=None,
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55 | 3a527b3a | Giorgos Korfiatis | help="Prompt user to change default base quotas"),
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56 | 3a527b3a | Giorgos Korfiatis | make_option('--from-file',
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57 | 3a527b3a | Giorgos Korfiatis | dest='from_file',
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58 | 3a527b3a | Giorgos Korfiatis | metavar='<limits_file.json>',
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59 | 3a527b3a | Giorgos Korfiatis | help="Read default base quotas from a json file"),
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60 | 720955ff | Giorgos Korfiatis | ) |
61 | 720955ff | Giorgos Korfiatis | |
62 | 720955ff | Giorgos Korfiatis | def handle(self, *args, **options): |
63 | 3a527b3a | Giorgos Korfiatis | resource_name = args[0] if len(args) > 0 else None |
64 | 3a527b3a | Giorgos Korfiatis | |
65 | 3a527b3a | Giorgos Korfiatis | actions = { |
66 | 3a527b3a | Giorgos Korfiatis | 'limit': self.change_limit, |
67 | 3a527b3a | Giorgos Korfiatis | 'interactive': self.change_interactive, |
68 | 3a527b3a | Giorgos Korfiatis | 'from_file': self.change_from_file, |
69 | 3a527b3a | Giorgos Korfiatis | } |
70 | 3a527b3a | Giorgos Korfiatis | |
71 | 3a527b3a | Giorgos Korfiatis | opts = [(key, value) |
72 | 3a527b3a | Giorgos Korfiatis | for (key, value) in options.items() |
73 | 3a527b3a | Giorgos Korfiatis | if key in actions and value is not None] |
74 | 3a527b3a | Giorgos Korfiatis | |
75 | 3a527b3a | Giorgos Korfiatis | if len(opts) != 1: |
76 | 3a527b3a | Giorgos Korfiatis | raise CommandError("Please provide exactly one option.") |
77 | 3a527b3a | Giorgos Korfiatis | |
78 | 3a527b3a | Giorgos Korfiatis | key, value = opts[0]
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79 | 3a527b3a | Giorgos Korfiatis | action = actions[key] |
80 | 3a527b3a | Giorgos Korfiatis | action(resource_name, value) |
81 | 3a527b3a | Giorgos Korfiatis | |
82 | 3a527b3a | Giorgos Korfiatis | def get_resource(self, resource_name): |
83 | 3a527b3a | Giorgos Korfiatis | try:
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84 | 3a527b3a | Giorgos Korfiatis | return Resource.objects.get_for_update(name=resource_name)
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85 | 3a527b3a | Giorgos Korfiatis | except Resource.DoesNotExist:
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86 | 3a527b3a | Giorgos Korfiatis | raise CommandError("Resource %s does not exist." |
87 | 3a527b3a | Giorgos Korfiatis | % resource_name) |
88 | 3a527b3a | Giorgos Korfiatis | |
89 | 3a527b3a | Giorgos Korfiatis | def change_limit(self, resource_name, limit): |
90 | 3a527b3a | Giorgos Korfiatis | if resource_name is None: |
91 | 720955ff | Giorgos Korfiatis | raise CommandError("Please provide a resource name.") |
92 | 720955ff | Giorgos Korfiatis | |
93 | 3a527b3a | Giorgos Korfiatis | resource = self.get_resource(resource_name)
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94 | 3a527b3a | Giorgos Korfiatis | self.change_resource_limit(resource, limit)
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95 | 720955ff | Giorgos Korfiatis | |
96 | 3a527b3a | Giorgos Korfiatis | def change_from_file(self, resource_name, filename): |
97 | 3a527b3a | Giorgos Korfiatis | with open(filename) as file_data: |
98 | 3a527b3a | Giorgos Korfiatis | try:
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99 | 3a527b3a | Giorgos Korfiatis | config = json.load(file_data) |
100 | 3a527b3a | Giorgos Korfiatis | except json.JSONDecodeError:
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101 | 3a527b3a | Giorgos Korfiatis | raise CommandError("Malformed JSON file.") |
102 | 3a527b3a | Giorgos Korfiatis | if not isinstance(config, dict): |
103 | 3a527b3a | Giorgos Korfiatis | raise CommandError("Malformed JSON file.") |
104 | 3a527b3a | Giorgos Korfiatis | self.change_with_conf(resource_name, config)
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105 | 720955ff | Giorgos Korfiatis | |
106 | 3a527b3a | Giorgos Korfiatis | def change_with_conf(self, resource_name, config): |
107 | 3a527b3a | Giorgos Korfiatis | if resource_name is None: |
108 | 3a527b3a | Giorgos Korfiatis | resources = Resource.objects.all().select_for_update() |
109 | 3a527b3a | Giorgos Korfiatis | else:
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110 | 3a527b3a | Giorgos Korfiatis | resources = [self.get_resource(resource_name)]
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111 | 3a527b3a | Giorgos Korfiatis | |
112 | 3a527b3a | Giorgos Korfiatis | for resource in resources: |
113 | 3a527b3a | Giorgos Korfiatis | limit = config.get(resource.name) |
114 | 3a527b3a | Giorgos Korfiatis | if limit is not None: |
115 | 3a527b3a | Giorgos Korfiatis | self.change_resource_limit(resource, limit)
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116 | 3a527b3a | Giorgos Korfiatis | |
117 | 3a527b3a | Giorgos Korfiatis | def change_interactive(self, resource_name, _placeholder): |
118 | 3a527b3a | Giorgos Korfiatis | if resource_name is None: |
119 | 3a527b3a | Giorgos Korfiatis | resources = Resource.objects.all().select_for_update() |
120 | 3a527b3a | Giorgos Korfiatis | else:
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121 | 3a527b3a | Giorgos Korfiatis | resources = [self.get_resource(resource_name)]
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122 | 3a527b3a | Giorgos Korfiatis | |
123 | 3a527b3a | Giorgos Korfiatis | for resource in resources: |
124 | 3a527b3a | Giorgos Korfiatis | self.stdout.write("Resource '%s' (%s)\n" % |
125 | 3a527b3a | Giorgos Korfiatis | (resource.name, resource.desc)) |
126 | 3a527b3a | Giorgos Korfiatis | unit = (" in %s" % resource.unit) if resource.unit else "" |
127 | 3a527b3a | Giorgos Korfiatis | self.stdout.write("Current limit%s: %s\n" |
128 | 3a527b3a | Giorgos Korfiatis | % (unit, resource.uplimit)) |
129 | 3a527b3a | Giorgos Korfiatis | while True: |
130 | 3a527b3a | Giorgos Korfiatis | self.stdout.write("New limit%s (leave blank to keep current): " |
131 | 3a527b3a | Giorgos Korfiatis | % (unit)) |
132 | 3a527b3a | Giorgos Korfiatis | response = raw_input()
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133 | 3a527b3a | Giorgos Korfiatis | if response == "": |
134 | 3a527b3a | Giorgos Korfiatis | break
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135 | 3a527b3a | Giorgos Korfiatis | else:
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136 | 3a527b3a | Giorgos Korfiatis | try:
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137 | 3a527b3a | Giorgos Korfiatis | value = int(response)
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138 | 3a527b3a | Giorgos Korfiatis | except ValueError: |
139 | 3a527b3a | Giorgos Korfiatis | continue
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140 | 3a527b3a | Giorgos Korfiatis | update_resource(resource, value) |
141 | 3a527b3a | Giorgos Korfiatis | break
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142 | 3a527b3a | Giorgos Korfiatis | |
143 | 3a527b3a | Giorgos Korfiatis | def change_resource_limit(self, resource, limit): |
144 | 720955ff | Giorgos Korfiatis | try:
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145 | 720955ff | Giorgos Korfiatis | limit = int(limit)
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146 | 720955ff | Giorgos Korfiatis | except:
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147 | 720955ff | Giorgos Korfiatis | raise CommandError("Limit should be an integer.") |
148 | 3a527b3a | Giorgos Korfiatis | update_resource(resource, limit) |