diff options
Diffstat (limited to 'sleekxmpp/plugins/xep_0323/sensordata.py')
| -rw-r--r-- | sleekxmpp/plugins/xep_0323/sensordata.py | 453 |
1 files changed, 221 insertions, 232 deletions
diff --git a/sleekxmpp/plugins/xep_0323/sensordata.py b/sleekxmpp/plugins/xep_0323/sensordata.py index 2e2f2470..a3d4cf34 100644 --- a/sleekxmpp/plugins/xep_0323/sensordata.py +++ b/sleekxmpp/plugins/xep_0323/sensordata.py @@ -15,7 +15,6 @@ from threading import Thread, Lock, Timer from sleekxmpp.plugins.xep_0323.timerreset import TimerReset -from sleekxmpp.xmlstream import JID from sleekxmpp.xmlstream.handler import Callback from sleekxmpp.xmlstream.matcher import StanzaPath from sleekxmpp.plugins.base import BasePlugin @@ -29,12 +28,12 @@ log = logging.getLogger(__name__) class XEP_0323(BasePlugin): """ - XEP-0323: IoT Sensor Data + XEP-0323: IoT Sensor Data This XEP provides the underlying architecture, basic operations and data structures for sensor data communication over XMPP networks. It includes - a hardware abstraction model, removing any technical detail implemented + a hardware abstraction model, removing any technical detail implemented in underlying technologies. Also see <http://xmpp.org/extensions/xep-0323.html> @@ -55,10 +54,10 @@ class XEP_0323(BasePlugin): Sensordata Event:Rejected -- Received a reject from sensor for a request Sensordata Event:Cancelled -- Received a cancel confirm from sensor Sensordata Event:Fields -- Received fields from sensor for a request - This may be triggered multiple times since + This may be triggered multiple times since the sensor can split up its response in multiple messages. - Sensordata Event:Failure -- Received a failure indication from sensor + Sensordata Event:Failure -- Received a failure indication from sensor for a request. Typically a comm timeout. Attributes: @@ -69,7 +68,7 @@ class XEP_0323(BasePlugin): relevant to a request's session. This dictionary is used both by the client and sensor side. On client side, seqnr is used as key, while on sensor side, a session_id is used - as key. This ensures that the two will not collide, so + as key. This ensures that the two will not collide, so one instance can be both client and sensor. Sensor side ----------- @@ -89,12 +88,12 @@ class XEP_0323(BasePlugin): Sensor side ----------- - register_node -- Register a sensor as available from this XMPP + register_node -- Register a sensor as available from this XMPP instance. Client side ----------- - request_data -- Initiates a request for data from one or more + request_data -- Initiates a request for data from one or more sensors. Non-blocking, a callback function will be called when data is available. @@ -102,13 +101,12 @@ class XEP_0323(BasePlugin): name = 'xep_0323' description = 'XEP-0323 Internet of Things - Sensor Data' - dependencies = set(['xep_0030']) + dependencies = set(['xep_0030']) stanza = stanza default_config = { 'threaded': True -# 'session_db': None } def plugin_init(self): @@ -155,17 +153,17 @@ class XEP_0323(BasePlugin): self._handle_event_started)) # Server side dicts - self.nodes = {}; - self.sessions = {}; + self.nodes = {} + self.sessions = {} - self.last_seqnr = 0; - self.seqnr_lock = Lock(); + self.last_seqnr = 0 + self.seqnr_lock = Lock() - ## For testning only + ## For testing only self.test_authenticated_from = "" def post_init(self): - """ Init complete. Register our features in Serivce discovery. """ + """ Init complete. Register our features in Service discovery. """ BasePlugin.post_init(self) self.xmpp['xep_0030'].add_feature(Sensordata.namespace) self.xmpp['xep_0030'].set_items(node=Sensordata.namespace, items=tuple()) @@ -182,7 +180,7 @@ class XEP_0323(BasePlugin): def plugin_end(self): """ Stop the XEP-0323 plugin """ - self.sessions.clear(); + self.sessions.clear() self.xmpp.remove_handler('Sensordata Event:Req') self.xmpp.remove_handler('Sensordata Event:Accepted') self.xmpp.remove_handler('Sensordata Event:Rejected') @@ -198,9 +196,9 @@ class XEP_0323(BasePlugin): def register_node(self, nodeId, device, commTimeout, sourceId=None, cacheType=None): """ Register a sensor/device as available for serving of data through this XMPP - instance. + instance. - The device object may by any custom implementation to support + The device object may by any custom implementation to support specific devices, but it must implement the functions: has_field request_fields @@ -212,25 +210,25 @@ class XEP_0323(BasePlugin): commTimeout -- Time in seconds to wait between each callback from device during a data readout. Float. sourceId -- [optional] identifying the data source controlling the device - cacheType -- [optional] narrowing down the search to a specific kind of node + cacheType -- [optional] narrowing down the search to a specific kind of node """ - self.nodes[nodeId] = {"device": device, + self.nodes[nodeId] = {"device": device, "commTimeout": commTimeout, - "sourceId": sourceId, - "cacheType": cacheType}; + "sourceId": sourceId, + "cacheType": cacheType} def _set_authenticated(self, auth=''): """ Internal testing function """ - self.test_authenticated_from = auth; + self.test_authenticated_from = auth def _handle_event_req(self, iq): """ Event handler for reception of an Iq with req - this is a request. - Verifies that + Verifies that - all the requested nodes are available - - at least one of the requested fields is available from at least + - at least one of the requested fields is available from at least one of the nodes If the request passes verification, an accept response is sent, and @@ -238,42 +236,42 @@ class XEP_0323(BasePlugin): If the verification fails, a reject message is sent. """ - seqnr = iq['req']['seqnr']; - error_msg = ''; - req_ok = True; + seqnr = iq['req']['seqnr'] + error_msg = '' + req_ok = True # Authentication if len(self.test_authenticated_from) > 0 and not iq['from'] == self.test_authenticated_from: # Invalid authentication - req_ok = False; - error_msg = "Access denied"; + req_ok = False + error_msg = "Access denied" # Nodes - process_nodes = []; + process_nodes = [] if len(iq['req']['nodes']) > 0: for n in iq['req']['nodes']: if not n['nodeId'] in self.nodes: - req_ok = False; - error_msg = "Invalid nodeId " + n['nodeId']; - process_nodes = [n['nodeId'] for n in iq['req']['nodes']]; + req_ok = False + error_msg = "Invalid nodeId " + n['nodeId'] + process_nodes = [n['nodeId'] for n in iq['req']['nodes']] else: - process_nodes = self.nodes.keys(); + process_nodes = self.nodes.keys() # Fields - if we just find one we are happy, otherwise we reject - process_fields = []; + process_fields = [] if len(iq['req']['fields']) > 0: found = False for f in iq['req']['fields']: for node in self.nodes: if self.nodes[node]["device"].has_field(f['name']): - found = True; - break; + found = True + break if not found: - req_ok = False; - error_msg = "Invalid field " + f['name']; - process_fields = [f['name'] for n in iq['req']['fields']]; + req_ok = False + error_msg = "Invalid field " + f['name'] + process_fields = [f['name'] for n in iq['req']['fields']] - req_flags = iq['req']._get_flags(); + req_flags = iq['req']._get_flags() request_delay_sec = None if 'when' in req_flags: @@ -283,7 +281,7 @@ class XEP_0323(BasePlugin): try: dt = datetime.datetime.strptime(req_flags['when'], "%Y-%m-%dT%H:%M:%S") except ValueError: - req_ok = False; + req_ok = False error_msg = "Invalid datetime in 'when' flag, please use ISO format (i.e. 2013-04-05T15:00:03)." if not dt is None: @@ -292,51 +290,47 @@ class XEP_0323(BasePlugin): dtdiff = dt - dtnow request_delay_sec = dtdiff.seconds + dtdiff.days * 24 * 3600 if request_delay_sec <= 0: - req_ok = False; - error_msg = "Invalid datetime in 'when' flag, cannot set a time in the past. Current time: " + dtnow.isoformat(); + req_ok = False + error_msg = "Invalid datetime in 'when' flag, cannot set a time in the past. Current time: " + dtnow.isoformat() if req_ok: - session = self._new_session(); - self.sessions[session] = {"from": iq['from'], "to": iq['to'], "seqnr": seqnr}; - self.sessions[session]["commTimers"] = {}; - self.sessions[session]["nodeDone"] = {}; + session = self._new_session() + self.sessions[session] = {"from": iq['from'], "to": iq['to'], "seqnr": seqnr} + self.sessions[session]["commTimers"] = {} + self.sessions[session]["nodeDone"] = {} - #print("added session: " + str(self.sessions)) - - iq.reply(); - iq['accepted']['seqnr'] = seqnr; + iq.reply() + iq['accepted']['seqnr'] = seqnr if not request_delay_sec is None: iq['accepted']['queued'] = "true" - iq.send(block=False); + iq.send(block=False) - self.sessions[session]["node_list"] = process_nodes; + self.sessions[session]["node_list"] = process_nodes if not request_delay_sec is None: # Delay request to requested time timer = Timer(request_delay_sec, self._event_delayed_req, args=(session, process_fields, req_flags)) - self.sessions[session]["commTimers"]["delaytimer"] = timer; - timer.start(); + self.sessions[session]["commTimers"]["delaytimer"] = timer + timer.start() return if self.threaded: - #print("starting thread") tr_req = Thread(target=self._threaded_node_request, args=(session, process_fields, req_flags)) tr_req.start() - #print("started thread") else: - self._threaded_node_request(session, process_fields, req_flags); + self._threaded_node_request(session, process_fields, req_flags) else: - iq.reply(); - iq['type'] = 'error'; - iq['rejected']['seqnr'] = seqnr; - iq['rejected']['error'] = error_msg; - iq.send(block=False); + iq.reply() + iq['type'] = 'error' + iq['rejected']['seqnr'] = seqnr + iq['rejected']['error'] = error_msg + iq.send(block=False) def _threaded_node_request(self, session, process_fields, flags): - """ + """ Helper function to handle the device readouts in a separate thread. - + Arguments: session -- The request session id process_fields -- The fields to request from the devices @@ -344,41 +338,39 @@ class XEP_0323(BasePlugin): Formatted as a dictionary like { "flag name": "flag value" ... } """ for node in self.sessions[session]["node_list"]: - self.sessions[session]["nodeDone"][node] = False; + self.sessions[session]["nodeDone"][node] = False for node in self.sessions[session]["node_list"]: - timer = TimerReset(self.nodes[node]['commTimeout'], self._event_comm_timeout, args=(session, node)); - self.sessions[session]["commTimers"][node] = timer; - #print("Starting timer " + str(timer) + ", timeout: " + str(self.nodes[node]['commTimeout'])) - timer.start(); - self.nodes[node]['device'].request_fields(process_fields, flags=flags, session=session, callback=self._device_field_request_callback); + timer = TimerReset(self.nodes[node]['commTimeout'], self._event_comm_timeout, args=(session, node)) + self.sessions[session]["commTimers"][node] = timer + timer.start() + self.nodes[node]['device'].request_fields(process_fields, flags=flags, session=session, callback=self._device_field_request_callback) def _event_comm_timeout(self, session, nodeId): - """ + """ Triggered if any of the readout operations timeout. Sends a failure message back to the client, stops communicating with the failing device. - + Arguments: session -- The request session id nodeId -- The id of the device which timed out """ - msg = self.xmpp.Message(); - msg['from'] = self.sessions[session]['to']; - msg['to'] = self.sessions[session]['from']; - msg['failure']['seqnr'] = self.sessions[session]['seqnr']; - msg['failure']['error']['text'] = "Timeout"; - msg['failure']['error']['nodeId'] = nodeId; - msg['failure']['error']['timestamp'] = datetime.datetime.now().replace(microsecond=0).isoformat(); + msg = self.xmpp.Message() + msg['from'] = self.sessions[session]['to'] + msg['to'] = self.sessions[session]['from'] + msg['failure']['seqnr'] = self.sessions[session]['seqnr'] + msg['failure']['error']['text'] = "Timeout" + msg['failure']['error']['nodeId'] = nodeId + msg['failure']['error']['timestamp'] = datetime.datetime.now().replace(microsecond=0).isoformat() # Drop communication with this device and check if we are done - self.sessions[session]["nodeDone"][nodeId] = True; + self.sessions[session]["nodeDone"][nodeId] = True if (self._all_nodes_done(session)): - msg['failure']['done'] = 'true'; - msg.send(); + msg['failure']['done'] = 'true' + msg.send() # The session is complete, delete it - #print("del session " + session + " due to timeout") - del self.sessions[session]; + del self.sessions[session] def _event_delayed_req(self, session, process_fields, req_flags): """ @@ -390,47 +382,47 @@ class XEP_0323(BasePlugin): flags -- [optional] flags to pass to the devices, e.g. momentary Formatted as a dictionary like { "flag name": "flag value" ... } """ - msg = self.xmpp.Message(); - msg['from'] = self.sessions[session]['to']; - msg['to'] = self.sessions[session]['from']; - msg['started']['seqnr'] = self.sessions[session]['seqnr']; - msg.send(); + msg = self.xmpp.Message() + msg['from'] = self.sessions[session]['to'] + msg['to'] = self.sessions[session]['from'] + msg['started']['seqnr'] = self.sessions[session]['seqnr'] + msg.send() if self.threaded: tr_req = Thread(target=self._threaded_node_request, args=(session, process_fields, req_flags)) tr_req.start() else: - self._threaded_node_request(session, process_fields, req_flags); + self._threaded_node_request(session, process_fields, req_flags) def _all_nodes_done(self, session): - """ - Checks wheter all devices are done replying to the readout. - + """ + Checks whether all devices are done replying to the readout. + Arguments: session -- The request session id """ for n in self.sessions[session]["nodeDone"]: if not self.sessions[session]["nodeDone"][n]: - return False; - return True; + return False + return True def _device_field_request_callback(self, session, nodeId, result, timestamp_block, error_msg=None): - """ + """ Callback function called by the devices when they have any additional data. - Composes a message with the data and sends it back to the client, and resets + Composes a message with the data and sends it back to the client, and resets the timeout timer for the device. - + Arguments: session -- The request session id nodeId -- The device id which initiated the callback result -- The current result status of the readout. Valid values are: "error" - Readout failed. "fields" - Contains readout data. - "done" - Indicates that the readout is complete. May contain + "done" - Indicates that the readout is complete. May contain readout data. - timestamp_block -- [optional] Only applies when result != "error" + timestamp_block -- [optional] Only applies when result != "error" The readout data. Structured as a dictionary: - { + { timestamp: timestamp for this datablock, fields: list of field dictionary (one per readout field). readout field dictionary format: @@ -442,109 +434,107 @@ class XEP_0323(BasePlugin): dataType: The datatype of the field. Only applies to type enum. flags: [optional] data classifier flags for the field, e.g. momentary Formatted as a dictionary like { "flag name": "flag value" ... } - } + } } error_msg -- [optional] Only applies when result == "error". Error details when a request failed. """ if not session in self.sessions: - # This can happend if a session was deleted, like in a cancellation. Just drop the data. + # This can happen if a session was deleted, like in a cancellation. Just drop the data. return if result == "error": - self.sessions[session]["commTimers"][nodeId].cancel(); + self.sessions[session]["commTimers"][nodeId].cancel() - msg = self.xmpp.Message(); - msg['from'] = self.sessions[session]['to']; - msg['to'] = self.sessions[session]['from']; - msg['failure']['seqnr'] = self.sessions[session]['seqnr']; - msg['failure']['error']['text'] = error_msg; - msg['failure']['error']['nodeId'] = nodeId; - msg['failure']['error']['timestamp'] = datetime.datetime.now().replace(microsecond=0).isoformat(); + msg = self.xmpp.Message() + msg['from'] = self.sessions[session]['to'] + msg['to'] = self.sessions[session]['from'] + msg['failure']['seqnr'] = self.sessions[session]['seqnr'] + msg['failure']['error']['text'] = error_msg + msg['failure']['error']['nodeId'] = nodeId + msg['failure']['error']['timestamp'] = datetime.datetime.now().replace(microsecond=0).isoformat() # Drop communication with this device and check if we are done - self.sessions[session]["nodeDone"][nodeId] = True; + self.sessions[session]["nodeDone"][nodeId] = True if (self._all_nodes_done(session)): - msg['failure']['done'] = 'true'; + msg['failure']['done'] = 'true' # The session is complete, delete it - # print("del session " + session + " due to error") - del self.sessions[session]; - msg.send(); + del self.sessions[session] + msg.send() else: - msg = self.xmpp.Message(); - msg['from'] = self.sessions[session]['to']; - msg['to'] = self.sessions[session]['from']; - msg['fields']['seqnr'] = self.sessions[session]['seqnr']; + msg = self.xmpp.Message() + msg['from'] = self.sessions[session]['to'] + msg['to'] = self.sessions[session]['from'] + msg['fields']['seqnr'] = self.sessions[session]['seqnr'] if timestamp_block is not None and len(timestamp_block) > 0: - node = msg['fields'].add_node(nodeId); - ts = node.add_timestamp(timestamp_block["timestamp"]); + node = msg['fields'].add_node(nodeId) + ts = node.add_timestamp(timestamp_block["timestamp"]) for f in timestamp_block["fields"]: - data = ts.add_data( typename=f['type'], - name=f['name'], - value=f['value'], - unit=f['unit'], - dataType=f['dataType'], - flags=f['flags']); + data = ts.add_data( typename=f['type'], + name=f['name'], + value=f['value'], + unit=f['unit'], + dataType=f['dataType'], + flags=f['flags']) if result == "done": - self.sessions[session]["commTimers"][nodeId].cancel(); - self.sessions[session]["nodeDone"][nodeId] = True; - msg['fields']['done'] = 'true'; + self.sessions[session]["commTimers"][nodeId].cancel() + self.sessions[session]["nodeDone"][nodeId] = True if (self._all_nodes_done(session)): # The session is complete, delete it - # print("del session " + session + " due to complete") - del self.sessions[session]; + del self.sessions[session] + msg['fields']['done'] = 'true' else: # Restart comm timer - self.sessions[session]["commTimers"][nodeId].reset(); + self.sessions[session]["commTimers"][nodeId].reset() - msg.send(); + msg.send() def _handle_event_cancel(self, iq): - """ Received Iq with cancel - this is a cancel request. + """ Received Iq with cancel - this is a cancel request. Delete the session and confirm. """ - seqnr = iq['cancel']['seqnr']; + seqnr = iq['cancel']['seqnr'] # Find the session for s in self.sessions: if self.sessions[s]['from'] == iq['from'] and self.sessions[s]['to'] == iq['to'] and self.sessions[s]['seqnr'] == seqnr: # found it. Cancel all timers for n in self.sessions[s]["commTimers"]: - self.sessions[s]["commTimers"][n].cancel(); + self.sessions[s]["commTimers"][n].cancel() # Confirm - iq.reply(); - iq['type'] = 'result'; - iq['cancelled']['seqnr'] = seqnr; - iq.send(block=False); - + iq.reply() + iq['type'] = 'result' + iq['cancelled']['seqnr'] = seqnr + iq.send(block=False) + # Delete session del self.sessions[s] return # Could not find session, send reject - iq.reply(); - iq['type'] = 'error'; - iq['rejected']['seqnr'] = seqnr; - iq['rejected']['error'] = "Cancel request received, no matching request is active."; - iq.send(block=False); + iq.reply() + iq['type'] = 'error' + iq['rejected']['seqnr'] = seqnr + iq['rejected']['error'] = "Cancel request received, no matching request is active." + iq.send(block=False) - # ================================================================= + # ================================================================= # Client side (data retriever) API def request_data(self, from_jid, to_jid, callback, nodeIds=None, fields=None, flags=None): - """ - Called on the client side to initiade a data readout. + """ + Called on the client side to initiate a data readout. Composes a message with the request and sends it to the device(s). Does not block, the callback will be called when data is available. - + Arguments: from_jid -- The jid of the requester to_jid -- The jid of the device(s) - callback -- The callback function to call when data is availble. - + callback -- The callback function to call when data is available. + The callback function must support the following arguments: from_jid -- The jid of the responding device(s) @@ -565,7 +555,7 @@ class XEP_0323(BasePlugin): The timestamp of data in this callback. One callback will only contain data from one timestamp. fields -- [optional] Mandatory when result == "fields". - List of field dictionaries representing the readout data. + List of field dictionaries representing the readout data. Dictionary format: { typename: The field type (numeric, boolean, dateTime, timeSpan, string, enum) @@ -575,11 +565,11 @@ class XEP_0323(BasePlugin): dataType: The datatype of the field. Only applies to type enum. flags: [optional] data classifier flags for the field, e.g. momentary. Formatted as a dictionary like { "flag name": "flag value" ... } - } + } error_msg -- [optional] Mandatory when result == "rejected" or "failure". - Details about why the request is rejected or failed. - "rejected" means that the request is stopped, but note that the + Details about why the request is rejected or failed. + "rejected" means that the request is stopped, but note that the request will continue even after a "failure". "failure" only means that communication was stopped to that specific device, other device(s) (if any) will continue their readout. @@ -593,131 +583,130 @@ class XEP_0323(BasePlugin): session -- Session identifier. Client can use this as a reference to cancel the request. """ - iq = self.xmpp.Iq(); - iq['from'] = from_jid; - iq['to'] = to_jid; - iq['type'] = "get"; - seqnr = self._get_new_seqnr(); - iq['id'] = seqnr; - iq['req']['seqnr'] = seqnr; + iq = self.xmpp.Iq() + iq['from'] = from_jid + iq['to'] = to_jid + iq['type'] = "get" + seqnr = self._get_new_seqnr() + iq['id'] = seqnr + iq['req']['seqnr'] = seqnr if nodeIds is not None: for nodeId in nodeIds: - iq['req'].add_node(nodeId); + iq['req'].add_node(nodeId) if fields is not None: for field in fields: - iq['req'].add_field(field); + iq['req'].add_field(field) - iq['req']._set_flags(flags); + iq['req']._set_flags(flags) - self.sessions[seqnr] = {"from": iq['from'], "to": iq['to'], "seqnr": seqnr, "callback": callback}; - iq.send(block=False); + self.sessions[seqnr] = {"from": iq['from'], "to": iq['to'], "seqnr": seqnr, "callback": callback} + iq.send(block=False) - return seqnr; + return seqnr def cancel_request(self, session): - """ + """ Called on the client side to cancel a request for data readout. Composes a message with the cancellation and sends it to the device(s). - Does not block, the callback will be called when cancellation is + Does not block, the callback will be called when cancellation is confirmed. - + Arguments: session -- The session id of the request to cancel """ seqnr = session - iq = self.xmpp.Iq(); + iq = self.xmpp.Iq() iq['from'] = self.sessions[seqnr]['from'] - iq['to'] = self.sessions[seqnr]['to']; - iq['type'] = "get"; - iq['id'] = seqnr; - iq['cancel']['seqnr'] = seqnr; - iq.send(block=False); + iq['to'] = self.sessions[seqnr]['to'] + iq['type'] = "get" + iq['id'] = seqnr + iq['cancel']['seqnr'] = seqnr + iq.send(block=False) def _get_new_seqnr(self): """ Returns a unique sequence number (unique across threads) """ - self.seqnr_lock.acquire(); - self.last_seqnr = self.last_seqnr + 1; - self.seqnr_lock.release(); - return str(self.last_seqnr); + self.seqnr_lock.acquire() + self.last_seqnr += 1 + self.seqnr_lock.release() + return str(self.last_seqnr) def _handle_event_accepted(self, iq): """ Received Iq with accepted - request was accepted """ - seqnr = iq['accepted']['seqnr']; + seqnr = iq['accepted']['seqnr'] result = "accepted" if iq['accepted']['queued'] == 'true': result = "queued" - callback = self.sessions[seqnr]["callback"]; - callback(from_jid=iq['from'], result=result); + callback = self.sessions[seqnr]["callback"] + callback(from_jid=iq['from'], result=result) def _handle_event_rejected(self, iq): - """ Received Iq with rejected - this is a reject. + """ Received Iq with rejected - this is a reject. Delete the session. """ - seqnr = iq['rejected']['seqnr']; - callback = self.sessions[seqnr]["callback"]; - callback(from_jid=iq['from'], result="rejected", error_msg=iq['rejected']['error']); + seqnr = iq['rejected']['seqnr'] + callback = self.sessions[seqnr]["callback"] + callback(from_jid=iq['from'], result="rejected", error_msg=iq['rejected']['error']) # Session terminated - del self.sessions[seqnr]; + del self.sessions[seqnr] def _handle_event_cancelled(self, iq): - """ - Received Iq with cancelled - this is a cancel confirm. - Delete the session. """ - #print("Got cancelled") - seqnr = iq['cancelled']['seqnr']; - callback = self.sessions[seqnr]["callback"]; - callback(from_jid=iq['from'], result="cancelled"); + Received Iq with cancelled - this is a cancel confirm. + Delete the session. + """ + seqnr = iq['cancelled']['seqnr'] + callback = self.sessions[seqnr]["callback"] + callback(from_jid=iq['from'], result="cancelled") # Session cancelled - del self.sessions[seqnr]; + del self.sessions[seqnr] def _handle_event_fields(self, msg): - """ - Received Msg with fields - this is a data reponse to a request. + """ + Received Msg with fields - this is a data response to a request. If this is the last data block, issue a "done" callback. """ - seqnr = msg['fields']['seqnr']; - callback = self.sessions[seqnr]["callback"]; + seqnr = msg['fields']['seqnr'] + callback = self.sessions[seqnr]["callback"] for node in msg['fields']['nodes']: for ts in node['timestamps']: - fields = []; + fields = [] for d in ts['datas']: - field_block = {}; - field_block["name"] = d['name']; - field_block["typename"] = d._get_typename(); - field_block["value"] = d['value']; + field_block = {} + field_block["name"] = d['name'] + field_block["typename"] = d._get_typename() + field_block["value"] = d['value'] if not d['unit'] == "": field_block["unit"] = d['unit']; if not d['dataType'] == "": field_block["dataType"] = d['dataType']; - flags = d._get_flags(); + flags = d._get_flags() if not len(flags) == 0: - field_block["flags"] = flags; - fields.append(field_block); + field_block["flags"] = flags + fields.append(field_block) + + callback(from_jid=msg['from'], result="fields", nodeId=node['nodeId'], timestamp=ts['value'], fields=fields) - callback(from_jid=msg['from'], result="fields", nodeId=node['nodeId'], timestamp=ts['value'], fields=fields); - if msg['fields']['done'] == "true": - callback(from_jid=msg['from'], result="done"); + callback(from_jid=msg['from'], result="done") # Session done - del self.sessions[seqnr]; + del self.sessions[seqnr] def _handle_event_failure(self, msg): - """ + """ Received Msg with failure - our request failed - Delete the session. + Delete the session. """ - seqnr = msg['failure']['seqnr']; - callback = self.sessions[seqnr]["callback"]; - callback(from_jid=msg['from'], result="failure", nodeId=msg['failure']['error']['nodeId'], timestamp=msg['failure']['error']['timestamp'], error_msg=msg['failure']['error']['text']); + seqnr = msg['failure']['seqnr'] + callback = self.sessions[seqnr]["callback"] + callback(from_jid=msg['from'], result="failure", nodeId=msg['failure']['error']['nodeId'], timestamp=msg['failure']['error']['timestamp'], error_msg=msg['failure']['error']['text']) # Session failed - del self.sessions[seqnr]; + del self.sessions[seqnr] def _handle_event_started(self, msg): - """ - Received Msg with started - our request was queued and is now started. """ - seqnr = msg['started']['seqnr']; - callback = self.sessions[seqnr]["callback"]; - callback(from_jid=msg['from'], result="started"); - + Received Msg with started - our request was queued and is now started. + """ + seqnr = msg['started']['seqnr'] + callback = self.sessions[seqnr]["callback"] + callback(from_jid=msg['from'], result="started") + |