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-- Gemeinschaft 5 module: event manager class
-- (c) AMOOMA GmbH 2012-2013
--
module(...,package.seeall)
EventManager = {}
-- create event manager object
function EventManager.new(self, arg)
arg = arg or {}
object = arg.object or {}
setmetatable(object, self);
self.__index = self;
self.log = arg.log;
self.class = 'eventmanager'
self.database = arg.database;
self.domain = arg.domain;
return object;
end
function EventManager.register(self)
self.consumer = freeswitch.EventConsumer('all');
return (self.consumer ~= nil);
end
function EventManager.load_event_modules(self, modules)
local event_modules = {};
for module_name, index in pairs(modules) do
if tonumber(index) and index > 0 then
event_modules[index] = module_name;
self.log:debug('[event] EVENT_MANAGER - enabled handler module: ', module_name);
else
self.log:debug('[event] EVENT_MANAGER - disabled handler module: ', module_name);
end
end
return event_modules;
end
function EventManager.load_event_handlers(self, event_modules)
event_handlers = {}
for index, event_module_name in ipairs(event_modules) do
package.loaded['event.' .. event_module_name] = nil;
event_module = require('event.' .. event_module_name);
if event_module then
self.log:info('[event] EVENT_MANAGER - loading handler module: ', event_module_name);
handler_class = event_module.handler_class();
if handler_class then
module_event_handlers = handler_class:new{ log = self.log, database = self.database, domain = self.domain }:event_handlers();
if module_event_handlers then
for event_name, event_subclasses in pairs(module_event_handlers) do
if not event_handlers[event_name] then
event_handlers[event_name] = {};
end
for event_subclass, module_event_handler in pairs(event_subclasses) do
if not event_handlers[event_name][event_subclass] then
event_handlers[event_name][event_subclass] = {};
end
table.insert(event_handlers[event_name][event_subclass], { class = handler_class, method = module_event_handler } );
self.log:info('[event] EVENT_MANAGER - module: ', event_module_name, ', handling events: ', event_name, ', subclass:', event_subclass);
end
end
end
end
end
end
return event_handlers;
end
function EventManager.run(self)
require 'common.configuration_table'
self.config = common.configuration_table.get(self.database, 'events');
local event_modules = self:load_event_modules(self.config.modules);
self.log:info('[event] EVENT_MANAGER_START - handler modules: ', #event_modules);
local event_handlers = self:load_event_handlers(event_modules);
if not event_handlers then
self.log:error('[event] EVENT_MANAGER - no handlers specified');
return nil;
end
if not self:register() then
return nil;
end
freeswitch.setGlobalVariable('gs_event_manager', 'true');
while freeswitch.getGlobalVariable('gs_event_manager') == 'true' do
local event = self.consumer:pop(1, 100);
if event then
local event_type = event:getType();
local event_subclass = event:getHeader('Event-Subclass');
if event_handlers[event_type] then
if event_handlers[event_type][event_subclass] and #event_handlers[event_type][event_subclass] > 0 then
for index, event_handler in ipairs(event_handlers[event_type][event_subclass]) do
event_handler.method(event_handler.class, event);
end
end
if event_handlers[event_type][true] and #event_handlers[event_type][true] > 0 then
for index, event_handler in ipairs(event_handlers[event_type][true]) do
event_handler.method(event_handler.class, event);
end
end
end
end
end
self.consumer = nil;
self.log:info('[event] EVENT_MANAGER_EXIT - action: ', freeswitch.getGlobalVariable('gs_event_manager'));
end
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