diff options
Diffstat (limited to 'sleekxmpp/plugins/xep_0323/device.py')
| -rw-r--r-- | sleekxmpp/plugins/xep_0323/device.py | 378 |
1 files changed, 189 insertions, 189 deletions
diff --git a/sleekxmpp/plugins/xep_0323/device.py b/sleekxmpp/plugins/xep_0323/device.py index 23bdd153..0bc20327 100644 --- a/sleekxmpp/plugins/xep_0323/device.py +++ b/sleekxmpp/plugins/xep_0323/device.py @@ -12,51 +12,51 @@ import datetime import logging class Device(object): - """ - Example implementation of a device readout object. + """ + Example implementation of a device readout object. Is registered in the XEP_0323.register_node call The device object may be any custom implementation to support specific devices, but it must implement the functions: has_field request_fields - """ - - def __init__(self, nodeId, fields={}): - self.nodeId = nodeId - self.fields = fields # see fields described below - # {'type':'numeric', - # 'name':'myname', - # 'value': 42, - # 'unit':'Z'}]; - self.timestamp_data = {} - self.momentary_data = {} - self.momentary_timestamp = "" - logging.debug("Device object started nodeId %s",nodeId) - - def has_field(self, field): - """ - Returns true if the supplied field name exists in this device. + """ + + def __init__(self, nodeId, fields={}): + self.nodeId = nodeId + self.fields = fields # see fields described below + # {'type':'numeric', + # 'name':'myname', + # 'value': 42, + # 'unit':'Z'}]; + self.timestamp_data = {} + self.momentary_data = {} + self.momentary_timestamp = "" + logging.debug("Device object started nodeId %s",nodeId) + + def has_field(self, field): + """ + Returns true if the supplied field name exists in this device. Arguments: - field -- The field name - """ - if field in self.fields.keys(): - return True; - return False; - - def refresh(self, fields): - """ - override method to do the refresh work - refresh values from hardware or other - """ - pass - - - def request_fields(self, fields, flags, session, callback): - """ - Starts a data readout. Verifies the requested fields, - refreshes the data (if needed) and calls the callback - with requested data. + field -- The field name + """ + if field in self.fields.keys(): + return True; + return False; + + def refresh(self, fields): + """ + override method to do the refresh work + refresh values from hardware or other + """ + pass + + + def request_fields(self, fields, flags, session, callback): + """ + Starts a data readout. Verifies the requested fields, + refreshes the data (if needed) and calls the callback + with requested data. Arguments: @@ -65,153 +65,153 @@ class Device(object): Formatted as a dictionary like { "flag name": "flag value" ... } session -- Session id, only used in the callback as identifier callback -- Callback function to call when data is available. - - The callback function must support the following arguments: + + The callback function must support the following arguments: - session -- Session id, as supplied in the request_fields call - nodeId -- Identifier for this device - result -- The current result status of the readout. Valid values are: + session -- Session id, as supplied in the request_fields call + nodeId -- Identifier for this device + 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 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: - { - type: The field type (numeric, boolean, dateTime, timeSpan, string, enum) - name: The field name - value: The field value - unit: The unit of the field. Only applies to type numeric. - dataType: The datatype of the field. Only applies to type enum. - flags: [optional] data classifier flags for the field, e.g. momentary + { + timestamp: timestamp for this datablock, + fields: list of field dictionary (one per readout field). + readout field dictionary format: + { + type: The field type (numeric, boolean, dateTime, timeSpan, string, enum) + name: The field name + value: The field value + unit: The unit of the field. Only applies to type numeric. + 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_msg -- [optional] Only applies when result == "error". Error details when a request failed. - """ - logging.debug("request_fields called looking for fields %s",fields) - if len(fields) > 0: - # Check availiability - for f in fields: - if f not in self.fields.keys(): - self._send_reject(session, callback) - return False; - else: - # Request all fields - fields = self.fields.keys(); - - - # Refresh data from device - # ... - logging.debug("about to refresh device fields %s",fields) - self.refresh(fields) - - if "momentary" in flags and flags['momentary'] == "true" or \ - "all" in flags and flags['all'] == "true": - ts_block = {}; - timestamp = ""; - - if len(self.momentary_timestamp) > 0: - timestamp = self.momentary_timestamp; - else: - timestamp = self._get_timestamp(); - - field_block = []; - for f in self.momentary_data: - if f in fields: - field_block.append({"name": f, - "type": self.fields[f]["type"], - "unit": self.fields[f]["unit"], - "dataType": self.fields[f]["dataType"], - "value": self.momentary_data[f]["value"], - "flags": self.momentary_data[f]["flags"]}); - ts_block["timestamp"] = timestamp; - ts_block["fields"] = field_block; - - callback(session, result="done", nodeId=self.nodeId, timestamp_block=ts_block); - return - - from_flag = self._datetime_flag_parser(flags, 'from') - to_flag = self._datetime_flag_parser(flags, 'to') - - for ts in sorted(self.timestamp_data.keys()): - tsdt = datetime.datetime.strptime(ts, "%Y-%m-%dT%H:%M:%S") - if not from_flag is None: - if tsdt < from_flag: - #print (str(tsdt) + " < " + str(from_flag)) - continue - if not to_flag is None: - if tsdt > to_flag: - #print (str(tsdt) + " > " + str(to_flag)) - continue - - ts_block = {}; - field_block = []; - - for f in self.timestamp_data[ts]: - if f in fields: - field_block.append({"name": f, - "type": self.fields[f]["type"], - "unit": self.fields[f]["unit"], - "dataType": self.fields[f]["dataType"], - "value": self.timestamp_data[ts][f]["value"], - "flags": self.timestamp_data[ts][f]["flags"]}); - - ts_block["timestamp"] = ts; - ts_block["fields"] = field_block; - callback(session, result="fields", nodeId=self.nodeId, timestamp_block=ts_block); - callback(session, result="done", nodeId=self.nodeId, timestamp_block=None); - - def _datetime_flag_parser(self, flags, flagname): - if not flagname in flags: - return None - - dt = None - try: - dt = datetime.datetime.strptime(flags[flagname], "%Y-%m-%dT%H:%M:%S") - except ValueError: - # Badly formatted datetime, ignore it - pass - return dt - - - def _get_timestamp(self): - """ - Generates a properly formatted timestamp of current time - """ - return datetime.datetime.now().replace(microsecond=0).isoformat() - - def _send_reject(self, session, callback): - """ - Sends a reject to the caller + """ + logging.debug("request_fields called looking for fields %s",fields) + if len(fields) > 0: + # Check availiability + for f in fields: + if f not in self.fields.keys(): + self._send_reject(session, callback) + return False; + else: + # Request all fields + fields = self.fields.keys(); + + + # Refresh data from device + # ... + logging.debug("about to refresh device fields %s",fields) + self.refresh(fields) + + if "momentary" in flags and flags['momentary'] == "true" or \ + "all" in flags and flags['all'] == "true": + ts_block = {}; + timestamp = ""; + + if len(self.momentary_timestamp) > 0: + timestamp = self.momentary_timestamp; + else: + timestamp = self._get_timestamp(); + + field_block = []; + for f in self.momentary_data: + if f in fields: + field_block.append({"name": f, + "type": self.fields[f]["type"], + "unit": self.fields[f]["unit"], + "dataType": self.fields[f]["dataType"], + "value": self.momentary_data[f]["value"], + "flags": self.momentary_data[f]["flags"]}); + ts_block["timestamp"] = timestamp; + ts_block["fields"] = field_block; + + callback(session, result="done", nodeId=self.nodeId, timestamp_block=ts_block); + return + + from_flag = self._datetime_flag_parser(flags, 'from') + to_flag = self._datetime_flag_parser(flags, 'to') + + for ts in sorted(self.timestamp_data.keys()): + tsdt = datetime.datetime.strptime(ts, "%Y-%m-%dT%H:%M:%S") + if not from_flag is None: + if tsdt < from_flag: + #print (str(tsdt) + " < " + str(from_flag)) + continue + if not to_flag is None: + if tsdt > to_flag: + #print (str(tsdt) + " > " + str(to_flag)) + continue + + ts_block = {}; + field_block = []; + + for f in self.timestamp_data[ts]: + if f in fields: + field_block.append({"name": f, + "type": self.fields[f]["type"], + "unit": self.fields[f]["unit"], + "dataType": self.fields[f]["dataType"], + "value": self.timestamp_data[ts][f]["value"], + "flags": self.timestamp_data[ts][f]["flags"]}); + + ts_block["timestamp"] = ts; + ts_block["fields"] = field_block; + callback(session, result="fields", nodeId=self.nodeId, timestamp_block=ts_block); + callback(session, result="done", nodeId=self.nodeId, timestamp_block=None); + + def _datetime_flag_parser(self, flags, flagname): + if not flagname in flags: + return None + + dt = None + try: + dt = datetime.datetime.strptime(flags[flagname], "%Y-%m-%dT%H:%M:%S") + except ValueError: + # Badly formatted datetime, ignore it + pass + return dt + + + def _get_timestamp(self): + """ + Generates a properly formatted timestamp of current time + """ + return datetime.datetime.now().replace(microsecond=0).isoformat() + + def _send_reject(self, session, callback): + """ + Sends a reject to the caller Arguments: session -- Session id, see definition in request_fields function callback -- Callback function, see definition in request_fields function - """ - callback(session, result="error", nodeId=self.nodeId, timestamp_block=None, error_msg="Reject"); + """ + callback(session, result="error", nodeId=self.nodeId, timestamp_block=None, error_msg="Reject"); - def _add_field(self, name, typename, unit=None, dataType=None): - """ - Adds a field to the device + def _add_field(self, name, typename, unit=None, dataType=None): + """ + Adds a field to the device Arguments: name -- Name of the field typename -- Type of the field (numeric, boolean, dateTime, timeSpan, string, enum) unit -- [optional] only applies to "numeric". Unit for the field. dataType -- [optional] only applies to "enum". Datatype for the field. - """ - self.fields[name] = {"type": typename, "unit": unit, "dataType": dataType}; + """ + self.fields[name] = {"type": typename, "unit": unit, "dataType": dataType}; - def _add_field_timestamp_data(self, name, timestamp, value, flags=None): - """ - Adds timestamped data to a field + def _add_field_timestamp_data(self, name, timestamp, value, flags=None): + """ + Adds timestamped data to a field Arguments: name -- Name of the field @@ -219,37 +219,37 @@ class Device(object): value -- Field value at the timestamp flags -- [optional] data classifier flags for the field, e.g. momentary Formatted as a dictionary like { "flag name": "flag value" ... } - """ - if not name in self.fields.keys(): - return False; - if not timestamp in self.timestamp_data: - self.timestamp_data[timestamp] = {}; + """ + if not name in self.fields.keys(): + return False; + if not timestamp in self.timestamp_data: + self.timestamp_data[timestamp] = {}; - self.timestamp_data[timestamp][name] = {"value": value, "flags": flags}; - return True; + self.timestamp_data[timestamp][name] = {"value": value, "flags": flags}; + return True; - def _add_field_momentary_data(self, name, value, flags=None): - """ - Sets momentary data to a field + def _add_field_momentary_data(self, name, value, flags=None): + """ + Sets momentary data to a field Arguments: name -- Name of the field value -- Field value at the timestamp flags -- [optional] data classifier flags for the field, e.g. momentary Formatted as a dictionary like { "flag name": "flag value" ... } - """ - if not self.fields.has_key(name): - return False; - if flags is None: - flags = {}; - - flags["momentary"] = "true" - self.momentary_data[name] = {"value": value, "flags": flags}; - return True; - - def _set_momentary_timestamp(self, timestamp): - """ - This function is only for unit testing to produce predictable results. - """ - self.momentary_timestamp = timestamp; + """ + if name not in self.fields: + return False; + if flags is None: + flags = {}; + + flags["momentary"] = "true" + self.momentary_data[name] = {"value": value, "flags": flags}; + return True; + + def _set_momentary_timestamp(self, timestamp): + """ + This function is only for unit testing to produce predictable results. + """ + self.momentary_timestamp = timestamp; |