1 module("pubsub", package.seeall);
4 local service_mt = { __index = service };
7 return setmetatable({ cb = cb or {}, nodes = {} }, service_mt);
10 function service:add_subscription(node, actor, jid)
11 local node_obj = self.nodes[node];
13 return false, "item-not-found";
15 node_obj.subscribers[jid] = true;
19 function service:remove_subscription(node, actor, jid)
20 local node_obj = self.nodes[node];
22 return false, "item-not-found";
24 if not node_obj.subscribers[jid] then
25 return false, "not-subscribed";
27 node_obj.subscribers[jid] = nil;
31 function service:get_subscription(node, actor, jid)
32 local node_obj = self.nodes[node];
34 return node_obj.subscribers[jid];
38 function service:create(node, actor)
39 if not self.nodes[node] then
40 self.nodes[node] = { name = node, subscribers = {}, config = {}, data = {} };
43 return false, "conflict";
46 function service:publish(node, actor, id, item)
47 local node_obj = self.nodes[node];
49 node_obj = { name = node, subscribers = {}, config = {}, data = {} };
50 self.nodes[node] = node_obj;
52 node_obj.data[id] = item;
53 self.cb.broadcaster(node, node_obj.subscribers, item);
57 function service:retract(node, actor, id, retract)
58 local node_obj = self.nodes[node];
59 if (not node_obj) or (not node_obj.data[id]) then
60 return false, "item-not-found";
62 node_obj.data[id] = nil;
64 self.cb.broadcaster(node, node_obj.subscribers, retract);
69 function service:get(node, actor, id)
70 local node_obj = self.nodes[node];
73 return { node_obj.data[id] };