mod_http_xep227: Add support for import via APIs rather than direct store manipulation
In particular this transitions PEP nodes and data to be imported via mod_pep's
APIs, fixing issues with importing at runtime while PEP data may already be
live in RAM.
Next obvious candidate for this approach is rosters, so clients get immediate
roster pushes and other special handling (such as emitting subscribes to reach
the desired subscription state).
module:set_global()
local function return_args_after_calling(f, ...)
f();
return ...
end
local function time_method(module, store_name, store_type, method_name, method_function)
local opt_use_tags = module:get_option_boolean("measure_storage_tagged_metric", false);
local metric_name, metric_tags;
if opt_use_tags then
metric_name, metric_tags = "storage_operation", ("store_name:%s,store_type:%s,store_operation:%s"):format(store_name, store_type, method_name);
else
metric_name = store_name.."_"..store_type.."_"..method_name;
end
local measure_operation_started = module:measure(metric_name, "times", metric_tags);
return function (...)
module:log("debug", "Measuring storage operation %s (%s)", metric_name, metric_tags or "no tags");
local measure_operation_complete = measure_operation_started();
return return_args_after_calling(measure_operation_complete, method_function(...));
end;
end
local function wrap_store(module, store_name, store_type, store)
local new_store = setmetatable({}, {
__index = function (t, method_name)
local original_method = store[method_name];
if type(original_method) ~= "function" then
if original_method then
rawset(t, method_name, original_method);
end
return original_method;
end
local timed_method = time_method(module, store_name, store_type, method_name, original_method);
rawset(t, method_name, timed_method);
return timed_method;
end;
});
return new_store;
end
local function hook_event(module)
module:hook("store-opened", function(event)
event.store = wrap_store(module, event.store_name, event.store_type or "keyval", event.store);
end);
end
function module.load()
hook_event(module);
end
function module.add_host(module)
hook_event(module);
end