/b-gtk/fix-viz

To get this branch, use:
bzr branch http://gegoxaren.bato24.eu/bzr/b-gtk/fix-viz

« back to all changes in this revision

Viewing changes to avatarproviders.py

  • Committer: zedtux
  • Date: 2011-03-15 16:50:15 UTC
  • mto: This revision was merged to the branch mainline in revision 723.
  • Revision ID: zedtux@zedroot.org-20110315165015-dc8r4yoqhkmfrye3
Moved AvatarDownloaderWorker class into avatarsbox.py file

Show diffs side-by-side

added added

removed removed

Lines of Context:
14
14
# along with this program; if not, write to the Free Software
15
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16
16
 
 
17
import Queue
 
18
import urllib
 
19
import urllib2
17
20
import hashlib
18
 
import urllib
 
21
import threading
19
22
 
20
23
class AvatarProvider(object):
21
24
    """
36
39
        raise NotImplementedError("You must implement the get_base_url method.")
37
40
 
38
41
 
 
42
class AvatarDownloaderWorker(threading.Thread):
 
43
    """
 
44
    Threaded worker to retrieve avatar from a provider.
 
45
    
 
46
    It create a persitante connection to the provider in order
 
47
    to get avatars quickly through the same socket (urllib3).
 
48
    """
 
49
    
 
50
    def __init__(self, provider_method):
 
51
        """
 
52
        Constructor
 
53
        
 
54
        provider_method: Provider method that return fields
 
55
                         to send with the request.
 
56
        """
 
57
        threading.Thread.__init__(self)
 
58
        self.__stop = threading.Event()
 
59
        self.__queue = Queue.Queue()
 
60
        
 
61
        self.__provider_method = provider_method
 
62
        self.__end_thread = False
 
63
    
 
64
    def stop(self):
 
65
        """ Stop this worker """
 
66
        self.__end_thread = True
 
67
        self.__stop.set()
 
68
    
 
69
    def set_callback_method(self, method):
 
70
        """ Fire the given callback method when treatment is finished """
 
71
        self.__callback_method = method
 
72
    
 
73
    def queue(self, id_field):
 
74
        """
 
75
        Put in Queue the id_field to treat in the thread.
 
76
        This id_field is for example with Gravatar the email address.
 
77
        """
 
78
        self.__queue.put(id_field)
 
79
    
 
80
    def run(self):
 
81
        """ Worker core code. """
 
82
        while not self.__end_thread:
 
83
            id_field = self.__queue.get()
 
84
            # Call provider method to get fields to pass in the request
 
85
            url = self.__provider_method(id_field)
 
86
            # Execute the request
 
87
            response = urllib2.urlopen(url)
 
88
            # Fire the callback method
 
89
            if not self.__callback_method is None:
 
90
                self.__callback_method(response, id_field)
 
91
            self.__queue.task_done()
 
92
 
 
93
 
39
94
class AvatarProviderGravatar(AvatarProvider):
40
95
    """ Gravatar provider """
41
96