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annotate mamba/habitats/userlevelmenu.py @ 361:d4062344d8f4

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Level namespaces (for telling that a level is complete, no matter where it came from)
author Stefano Rivera <stefano@rivera.za.net>
date Fri, 16 Sep 2011 23:53:34 +0200
parents c2f7920563e4
children cc8be536a7fc
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1 """Level menu."""
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2
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3 from mamba.habitats.levelmenu import LevelMenu
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4 from mamba.level import Level
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04bb1ffcd054 Activated ctpug level server.
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5 from mamba.constants import LEVEL_SERVER
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7 import urllib2
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10 class UserLevelMenu(LevelMenu):
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d4062344d8f4 Level namespaces (for telling that a level is complete, no matter where it came from)
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12 level_namespace = 'curated'
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13 LEVEL_SERVER_URL = LEVEL_SERVER + "curated/"
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b0ac80c7db04 Cache online levels.
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14 TIMEOUT = 5.0 # in seconds
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15 CACHE = {}
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16
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17 @classmethod
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18 def _url_data(cls, route):
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19 url = "%s%s" % (cls.LEVEL_SERVER_URL, route)
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20 return urllib2.urlopen(url, timeout=cls.TIMEOUT).read()
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21
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22 @classmethod
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23 def _populate_cache(cls):
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24 try:
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25 data = cls._url_data("index")
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26 except:
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27 print "Failed to download online level index."
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28 return
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29 levels = [x.strip() for x in data.splitlines()]
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30
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31 for name in levels:
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32 try:
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33 source = cls._url_data("level/%s" % name)
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34 level = Level(name, cls.level_namespace, source)
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35 except:
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3ec7acdf3065 Fix bug in error printing.
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36 print "Failed to download online level %r" % name
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37 continue
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38 cls.CACHE[level] = level
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39
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40 def list_levels(self):
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41 if not self.CACHE:
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42 self._populate_cache()
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43 return self.CACHE.keys()
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44
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45 def get_level(self, name):
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46 return self.CACHE[name]