1 ## Copyright 2002-2004 Andrew Loewenstern, All Rights Reserved
2 # see LICENSE.txt for license information
5 from twisted.internet.defer import Deferred
6 from const import reactor, NULL_ID
13 class KNodeBase(Node):
14 def checkSender(self, dict):
16 senderid = dict['rsp']['id']
18 print ">>>> No peer id in response"
19 raise Exception, "No peer id in response."
21 if self.id != NULL_ID and senderid != self.id:
22 print "Got response from different node than expected."
23 self.table.invalidateNode(self)
27 def errBack(self, err):
32 df = self.conn.sendRequest('ping', {"id":id})
33 df.addErrback(self.errBack)
34 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, id):
51 df = self.conn.sendRequest('store_value', {"key" : key, "value" : value, "id": id})
52 df.addErrback(self.errBack)
53 df.addCallback(self.checkSender)
55 def storeValues(self, key, value, id):
56 df = self.conn.sendRequest('store_values', {"key" : key, "values" : value, "id": id})
57 df.addErrback(self.errBack)
58 df.addCallback(self.checkSender)