From 45689fd8799186fd6be0b308745aef428ab50dcc Mon Sep 17 00:00:00 2001
From: Joachim Lindborg <Joachim.Lindborg@lsys.se>
Date: Fri, 30 Aug 2013 02:29:52 +0200
Subject: First implementation of the xep_0323 and xep_325 used in IoT systems.
 Tests are added for stanza and streams

---
 sleekxmpp/plugins/xep_0325/device.py | 125 +++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 sleekxmpp/plugins/xep_0325/device.py

(limited to 'sleekxmpp/plugins/xep_0325/device.py')

diff --git a/sleekxmpp/plugins/xep_0325/device.py b/sleekxmpp/plugins/xep_0325/device.py
new file mode 100644
index 00000000..1cb99510
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0325/device.py
@@ -0,0 +1,125 @@
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Implementation of xeps for Internet of Things
+    http://wiki.xmpp.org/web/Tech_pages/IoT_systems
+    Copyright (C) 2013 Sustainable Innovation, Joachim.lindborg@sust.se, bjorn.westrom@consoden.se
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+
+import datetime
+
+class Device(object):
+	"""
+	Example implementation of a device control object.
+    
+    The device object may by any custom implementation to support 
+    specific devices, but it must implement the functions:
+          has_control_field
+          set_control_fields
+	"""
+
+	def __init__(self, nodeId):
+		self.nodeId = nodeId;
+		self.control_fields = {};
+
+	def has_control_field(self, field, typename):
+		"""
+		Returns true if the supplied field name exists
+		and the type matches for control in this device.
+
+        Arguments:
+            field      -- The field name		
+            typename   -- The expected type
+		"""
+		if field in self.control_fields and self.control_fields[field]["type"] == typename:
+			return True;
+		return False;
+
+	def set_control_fields(self, fields, session, callback):
+		"""
+		Starts a control setting procedure. Verifies the fields,
+		sets the data and (if needed) and calls the callback.
+
+        Arguments:
+            fields   -- List of control fields in tuple format: 
+                        (name, typename, value)
+            session  -- Session id, only used in the callback as identifier
+            callback -- Callback function to call when control set is complete.
+
+					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:
+                               "error"  - Set fields failed.
+                               "ok"     - All fields were set.
+	            error_field -- [optional] Only applies when result == "error" 
+    	                       The field name that failed 
+    	                       (usually means it is missing)
+        	    error_msg   -- [optional] Only applies when result == "error".
+            	               Error details when a request failed.
+		"""
+
+		if len(fields) > 0:
+			# Check availiability
+			for name, typename, value in fields:
+				if not self.has_control_field(name, typename):
+					self._send_control_reject(session, name, "NotFound", callback)
+					return False;
+
+		for name, typename, value in fields:
+			self._set_field_value(name, value)
+
+		callback(session, result="ok", nodeId=self.nodeId);
+		return True
+
+	def _send_control_reject(self, session, field, message, callback):
+		"""
+		Sends a reject to the caller
+
+        Arguments:
+            session  -- Session id, see definition in 
+                        set_control_fields function
+            callback -- Callback function, see definition in 
+                        set_control_fields function
+		"""
+		callback(session, result="error", nodeId=self.nodeId, error_field=field, error_msg=message);
+
+	def _add_control_field(self, name, typename, value):
+		"""
+		Adds a control field to the device
+
+        Arguments:
+            name     -- Name of the field
+            typename -- Type of the field, one of: 
+                        (boolean, color, string, date, dateTime, 
+                         double, duration, int, long, time)
+            value    -- Field value
+		"""
+		self.control_fields[name] = {"type": typename, "value": value};
+
+	def _set_field_value(self, name, value):
+		"""
+		Set the value of a control field
+
+        Arguments:
+            name     -- Name of the field
+            value    -- New value for the field
+		"""
+		if name in self.control_fields:
+			self.control_fields[name]["value"] = value;
+
+	def _get_field_value(self, name):
+		"""
+		Get the value of a control field. Only used for unit testing.
+
+        Arguments:
+            name     -- Name of the field
+		"""
+		if name in self.control_fields:
+			return self.control_fields[name]["value"];
+		return None;
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