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module("pubsub", package.seeall);
local service = {};
local service_mt = { __index = service };
function new(cb)
return setmetatable({ cb = cb or {}, nodes = {} }, service_mt);
end
function service:add_subscription(node, actor, jid)
local node_obj = self.nodes[node];
if not node_obj then
return false, "item-not-found";
end
node_obj.subscribers[jid] = true;
return true;
end
function service:remove_subscription(node, actor, jid)
self.nodes[node].subscribers[jid] = nil;
return true;
end
function service:publish(node, actor, id, item)
local node_obj = self.nodes[node];
if not node_obj then
node_obj = { name = node, subscribers = {}, config = {} };
self.nodes[node] = node_obj;
end
node_obj.data = item;
self.cb.broadcaster(node, node_obj.subscribers, item);
return true;
end
return _M;
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