10
10
class UnsupportedOrder(Exception):
11
"""Raised when an Unsupported order is requested."""
14
14
class GrackleClient:
15
"""Class for accessing Grackle web service."""
16
17
def __init__(self, host, port):
20
:param host: The name of the server.
21
:param port: The port providing Grackle service.
19
25
self.netloc = '%s:%d' % (host, port)
21
27
def archive_url(self, archive_id, query):
28
"""Return the URL for an archive
30
:param archive_id: The id of the archive to generate the URL for.
31
:param query: The query to use in the URL, as a dict.
22
33
path = '/archive/%s' % quote(archive_id)
23
34
query_string = urlencode(query)
24
35
return urlunparse(('http', self.netloc, path, '', query_string, ''))
26
37
def _get_connection(self):
27
38
return httplib.HTTPConnection(self.host, self.port)
29
def _verb_archive(self, verb, archive_id, query, body=None):
40
def _method_archive(self, method, archive_id, query, body=None):
41
"""Perform an HTTP method on an archive's URL."""
30
42
url = self.archive_url(archive_id, query)
31
43
connection = self._get_connection()
32
connection.request(verb, url, body)
44
connection.request(method, url, body)
33
45
return connection.getresponse()
35
47
def put_message(self, archive_id, key, file_obj):
36
response = self._verb_archive(
48
"""Put a message into an archive.
50
:param archive_id: The archive to put the message into.
51
:param key: An arbitrary identifier that can later be used to retrieve
53
:param file_obj: The raw text of the message, as a file.
55
response = self._method_archive(
37
56
'POST', archive_id, {'key': key}, file_obj.read())
38
57
data = response.read()
39
58
if response.status == httplib.BAD_REQUEST:
46
65
def get_messages(self, archive_id, message_ids=None, limit=None,
47
66
memo=None, order=None, headers=None,
48
67
max_body_length=None, include_hidden=False):
68
"""Retrieve specified messages.
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:param archive_id: The archive to retrieve messages from.
71
:param message_ids: (optional) Retrieve only messages with these ids.
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:param limit: The maximum number of messages to return. The server
73
may, at its discretion, return fewer.
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:param memo: (optional) Opaque identifier describing the position in
75
the list of messages to return. The combination of a memo and a
76
limit describes a batch of results. If not specified, the start
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:param order: The order to return results in. Supported orders are
79
determined by the server. See test_client.SUPPORTED_ORDERS for an
81
:param headers: The headers to include in the message. Only headers
82
actually present in the message will be provided. If unspecified,
83
most headers will be included.
84
:param max_body_length: The maximum length for a message's body. When
85
multiple messages are nested (as with a thread), this applies to
86
each message's body, not the aggregate length of all messages'
88
:param include_hidden: If true, include messages that have been
89
flagged "hidden" in the results.
50
92
if message_ids is not None:
51
93
parameters['message_ids'] = message_ids
61
103
parameters['max_body_length'] = max_body_length
62
104
parameters['include_hidden'] = include_hidden
63
105
query = {'parameters': simplejson.dumps(parameters)}
64
response = self._verb_archive('GET', archive_id, query)
106
response = self._method_archive('GET', archive_id, query)
65
107
if response.status == httplib.BAD_REQUEST:
66
108
raise UnsupportedOrder
67
109
data = response.read()