def test_find_in_list(self):
hl = [
("content-length", "18031"),
("accept-ranges", "bytes"),
("server", "Apache/2.2.9 (Debian) DAV/2 SVN/1.5.1 mod_ssl/2.2.9 OpenSSL/0.9.8g mod_wsgi/2.5 Python/2.5.2"),
("last-modified", "Fri, 27 Nov 2009 22:03:14 GMT"),
("etag", '"105800d-466f-479617552ec80"'),
("date", "Sat, 28 Nov 2009 02:03:43 GMT"),
("content-type", "text/html"),
]
last_modified = find_in_list(hl, "last-modified", 0, 1)
self.assertEqual(last_modified, "Fri, 27 Nov 2009 22:03:14 GMT")
content_type = find_in_list(hl, "content-type", 0, 1)
self.assertEqual(content_type, "text/html")
notThere = find_in_list(hl, "BADKEY", 0, 1)
self.assertEqual(notThere, None)
def _createList(self, detail=False, offset=0, limit=DEFAULT_PAGE_SIZE,
lastModified=BEGINNING_OF_TIME):
"""
Master function that can perform all possible combinations.
Called by publicly accessible methods to do the actual work.
What this really has to do is set up a ValueListIterator which will
then ask us back for the actual data when it's requested.
http://www.informit.com/articles/article.aspx?p=26148&seqNum=4
This will actually fetch one page of results so, for efficiency, the
iterator will have to be clever enough not to re-fetch on the first
access.
"""
print "_createList: ", detail, offset, limit
# Set flags for parameters we have to act on
conditionalGet = (lastModified != BEGINNING_OF_TIME)
pagedGet = (offset != 0 or limit != DEFAULT_PAGE_SIZE)
uri = self._requestPrefix
if detail:
uri += "/detail"
params = {"offset":offset, "limit":limit}
if conditionalGet:
params['changes-since'] = lastModified
retHeaders = [] # we may need "last-modified"
if conditionalGet:
deltaReturned = False
while not deltaReturned:
try:
ret_obj = self._cloudServersService.GET(uri, params, retHeaders=retHeaders)
deltaReturned = 'cloudServersFault' in ret_obj
except OverLimitFault as olf:
# sleep until retry_after to avoid more OverLimitFaults
self._sleepUntilRetryAfter_(olf)
else:
ret_obj = self._cloudServersService.GET(uri, params, retHeaders=retHeaders)
# print "ret_obj: " + str(ret_obj)
theList = ret_obj[self._responseKey]
# Create the entity list
entityList = self.createEntityListFromResponse(ret_obj, detail)
cslogger.debug(ret_obj)
cslogger.debug(retHeaders)
lastModifiedAsString = None
if not conditionalGet:
# For a non-conditional get, we store the one from the
# returned headers for subsequent conditional gets
lastModifiedAsString = find_in_list(retHeaders, "last-modified")
# Now, make the entity list aware of enough state information to
# perform future operations properly
data = {'conditionalGet': conditionalGet,
'pagedGet': pagedGet,
'lastModified': lastModified }
if lastModifiedAsString is not None:
data['lastModifiedAsString'] = lastModifiedAsString
return entityList