Added dict-like API for attributes. you can now use something like this:

dev.attributes["temperature"] = 20

git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/Python/trunk@1868 b32b6428-25c9-4566-ad07-03861ab6144f

libs/lib/xaal/lib/devices.py

@@ -55,6 +55,25 @@ class Attribute(object):
         return "attr: %s  value: %s" % (self.name, self.value)
 
 
+class Attributes(list):
+    
+    def __getitem__(self,value):
+        if isinstance(value,int):
+            return list.__getitem__(self,value)
+        for k in self:
+            if (value == k.name):
+                return k.value
+        raise KeyError(value)
+    
+    def __setitem__(self,name,value):
+        if isinstance(name,int):
+            return list.__setitem__(self,name,value)
+        for k in self:
+            if (name == k.name):
+                k.value = value
+                return
+        raise KeyError(name)
+                
     
 class Device(object):
 
@@ -77,7 +96,7 @@ class Device(object):
         self.alive_period = config.alive_timer # time in sec between two alive
         self.next_alive = 0
 
-        self.__attributes = []
+        self.__attributes = Attributes()
 
         self.new_attribute('busAddr',config.address)
         self.new_attribute('busPort',config.port)
@@ -148,7 +167,10 @@ class Device(object):
 
     @attributes.setter
     def attributes(self,values):
+        if isinstance(values,Attributes):
             self.__attributes = values
+        else:
+            raise DeviceError("Invalid attributes list, use class Attributes)")
 
     def add_method(self,name,func):
         self.methods.update({name:func})