def reset_node(self, node, default_resources={}):
"""Reset a node: clear the current resource and reinitialize them."""
node.clear_resources()
node.set_resource_value('protocol', self.PROTOCOL)
for resource, value in default_resources.items():
node.set_resource_value(resource, value)
self.send_to_broker(Message.reset_node(node.uid))
self.discover_node(node)
def handle_coap_check(self, address, reset=False):
"""Handle check message received from coap node."""
node = CoapNode(address)
node.check_time = time.time()
if node not in self.nodes:
# This is a totally new node: create uid, initialized cached node
# send 'new' node notification, 'update' notification.
node_uid = str(uuid.uuid4())
self.nodes.update({
node: {
'uid': node_uid,
'data': {
'ip': address,
'protocol': PROTOCOL
}
}
})
self._on_message_cb(Msg.new_node(node_uid))
self._on_message_cb(Msg.update_node(node_uid, "ip", address))
self._on_message_cb(Msg.update_node(node_uid, "protocol",
PROTOCOL))
self.discover_node(node, node_uid)
elif reset:
# The data of the node need to be reset without removing it. This
# is particularly the case after a reboot of the node or a
# firmware update of the node that triggered the reboot.
node_uid = self.nodes[node]['uid']
self.nodes[node]['data'] = {}
self.nodes[node]['data'].update({
'ip': address,
'protocol': PROTOCOL
})
self._on_message_cb(Msg.reset_node(node_uid))
self.discover_node(node, node_uid)
else:
# The node simply sent a check message to notify that it's still
# online.
data = self.nodes.pop(node)
self.nodes.update({node: data})
def test_reset_node():
serialized = Message.reset_node('1234')
assert serialized == Message.serialize({'type': 'reset', 'uid': '1234'})