1 ## Copyright 2002-2004 Andrew Loewenstern, All Rights Reserved
2 # see LICENSE.txt for license information
4 from node import Node, NULL_ID
7 def checkSender(self, dict):
9 senderid = dict['rsp']['id']
11 print ">>>> No peer id in response"
12 raise Exception, "No peer id in response."
14 if self.id != NULL_ID and senderid != self.id:
15 print "Got response from different node than expected."
16 self.table.invalidateNode(self)
20 def errBack(self, err):
25 df = self.conn.sendRequest('ping', {"id":id})
26 df.addErrback(self.errBack)
27 df.addCallback(self.checkSender)
31 df = self.conn.sendRequest('join', {"id":id})
32 df.addErrback(self.errBack)
33 df.addCallback(self.checkSender)
36 def findNode(self, target, id):
37 df = self.conn.sendRequest('find_node', {"target" : target, "id": id})
38 df.addErrback(self.errBack)
39 df.addCallback(self.checkSender)
42 class KNodeRead(KNodeBase):
43 def findValue(self, key, id):
44 df = self.conn.sendRequest('find_value', {"key" : key, "id" : id})
45 df.addErrback(self.errBack)
46 df.addCallback(self.checkSender)
49 class KNodeWrite(KNodeRead):
50 def storeValue(self, key, value, originated, id):
51 df = self.conn.sendRequest('store_value', {"key" : key, "value" : value, "originated" : originated, "id": id})
52 df.addErrback(self.errBack)
53 df.addCallback(self.checkSender)