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annotate mamba/habitats/userlevelmenu.py @ 431:15771cc126fc

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Always return network levels in a consistent order.
author Simon Cross <hodgestar@gmail.com>
date Sat, 17 Sep 2011 19:12:59 +0200
parents 001c3797a63b
children f4f883418ac2
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1 """Level menu."""
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3 import urllib2
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4
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5 from mamba.habitats.levelmenu import LevelMenu
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6 from mamba.level import Level
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7 from mamba.constants import LEVEL_SERVER
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8 from mamba.data import get_level_list, load_file
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11 class UserLevelApi(object):
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13 def __init__(self, ctype, url=LEVEL_SERVER, timeout=5):
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14 assert ctype in ("curated", "uncurated")
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15 assert url.endswith("/")
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16 self.ctype = ctype
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17 self.level_namespace = ctype
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18 self.url = url
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19 self.timeout = timeout
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20 self.cache = {}
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21
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22 def _url_data(self, route):
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23 url = "%s%s/%s" % (self.url, self.ctype, route)
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24 return urllib2.urlopen(url, timeout=self.timeout).read()
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25
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26 def _populate_level(self, name):
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27 try:
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28 source = self._url_data("level/%s" % name)
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29 level = Level(name, self.level_namespace, source)
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30 except:
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31 print "Failed to download online level %r" % name
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32 return
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33 self.cache[name] = level
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34
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35 def _populate_cache(self):
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36 try:
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37 data = self._url_data("index")
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38 except:
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39 print "Failed to download online level index."
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40 return
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41 levels = [x.strip() for x in data.splitlines()]
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42
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43 for name in levels:
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44 self._populate_level(name)
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46 def list_levels(self):
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47 if not self.cache:
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48 self._populate_cache()
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49 return sorted(self.cache.keys())
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51 def print_levels(self):
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52 title = "%s levels:" % self.ctype.title()
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53 print title
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54 print "=" * len(title)
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55 for name in self.list_levels():
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56 print name
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57 print "=" * len(title)
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58
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59 def get_level(self, name):
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60 if name not in self.cache:
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61 self._populate_level(name)
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62 return self.cache[name]
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65 class NetworkLevelMenu(LevelMenu):
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67 API = UserLevelApi("curated")
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69 @property
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70 def level_namespace(self):
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71 self.API.level_namespace
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72
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73 def list_levels(self):
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74 return self.API.list_levels()
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75
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76 def get_level(self, name):
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77 return self.API.get_level(name)
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80 class UserLevelMenu(LevelMenu):
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81
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82 level_namespace = "user"
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83
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84 def list_levels(self):
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85 return get_level_list('user_levels', is_user_dir=True)
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86
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87 def get_level(self, name):
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88 source = load_file('user_levels/%s.txt' % (name,), is_user_dir=True)
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89 return Level(name, self.level_namespace, source.read())