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-rw-r--r--util/pubsub.lua34
1 files changed, 28 insertions, 6 deletions
diff --git a/util/pubsub.lua b/util/pubsub.lua
index 1db917d8..2f42809e 100644
--- a/util/pubsub.lua
+++ b/util/pubsub.lua
@@ -5,13 +5,14 @@ local service = {};
local service_mt = { __index = service };
local default_config = { __index = {
- itemstore = function (config) return cache.new(tonumber(config["pubsub#max_items"])) end;
+ itemstore = function (config, _) return cache.new(config["max_items"]) end;
broadcaster = function () end;
get_affiliation = function () end;
capabilities = {};
} };
local default_node_config = { __index = {
- ["pubsub#max_items"] = "20";
+ ["persist_items"] = false;
+ ["max_items"] = 20;
} };
local function new(config)
@@ -223,7 +224,7 @@ function service:create(node, actor, options)
config = setmetatable(options or {}, {__index=self.node_defaults});
affiliations = {};
};
- self.data[node] = self.config.itemstore(self.nodes[node].config);
+ self.data[node] = self.config.itemstore(self.nodes[node].config, node);
self.events.fire_event("node-created", { node = node, actor = actor });
local ok, err = self:set_affiliation(node, true, actor, "owner");
if not ok then
@@ -244,6 +245,9 @@ function service:delete(node, actor)
return false, "item-not-found";
end
self.nodes[node] = nil;
+ if self.data[node] and self.data[node].clear then
+ self.data[node]:clear();
+ end
self.data[node] = nil;
self.events.fire_event("node-deleted", { node = node, actor = actor });
self.config.broadcaster("delete", node, node_obj.subscribers);
@@ -272,6 +276,7 @@ function service:publish(node, actor, id, item)
if not ok then
return nil, "internal-server-error";
end
+ if type(ok) == "string" then id = ok; end
self.events.fire_event("item-published", { node = node, actor = actor, id = id, item = item });
self.config.broadcaster("items", node, node_obj.subscribers, item, actor);
return true;
@@ -308,7 +313,11 @@ function service:purge(node, actor, notify)
if not node_obj then
return false, "item-not-found";
end
- self.data[node] = self.config.itemstore(self.nodes[node].config);
+ if self.data[node] and self.data[node].clear then
+ self.data[node]:clear()
+ else
+ self.data[node] = self.config.itemstore(self.nodes[node].config, node);
+ end
self.events.fire_event("node-purged", { node = node, actor = actor });
if notify then
self.config.broadcaster("purge", node, node_obj.subscribers);
@@ -327,7 +336,11 @@ function service:get_items(node, actor, id)
return false, "item-not-found";
end
if id then -- Restrict results to a single specific item
- return true, { id, [id] = self.data[node]:get(id) };
+ local with_id = self.data[node]:get(id);
+ if not with_id then
+ return true, { };
+ end
+ return true, { id, [id] = with_id };
else
local data = {}
for key, value in self.data[node]:items() do
@@ -338,6 +351,15 @@ function service:get_items(node, actor, id)
end
end
+function service:get_last_item(node, actor)
+ -- Access checking
+ if not self:may(node, actor, "get_items") then
+ return false, "forbidden";
+ end
+ --
+ return true, self.data[node]:tail();
+end
+
function service:get_nodes(actor)
-- Access checking
if not self:may(nil, actor, "get_nodes") then
@@ -424,7 +446,7 @@ function service:set_node_config(node, actor, new_config)
for k,v in pairs(new_config) do
node_obj.config[k] = v;
end
- local new_data = self.config.itemstore(self.nodes[node].config);
+ local new_data = self.config.itemstore(self.nodes[node].config, node);
for key, value in self.data[node]:items() do
new_data:set(key, value);
end