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lua-ngcp-kamailio/ngcp/redis.lua

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2.0 KiB

--
-- Copyright 2022-2024 SipWise Team <development@sipwise.com>
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This package is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
-- .
-- On Debian systems, the complete text of the GNU General
-- Public License version 3 can be found in "/usr/share/common-licenses/GPL-3".
--
local utils = require 'ngcp.utils'
local redis = require 'redis';
local utable = utils.table
local NGCPRedis = utils.inheritsFrom()
-- luacheck: globals KSR
local KSR = KSR
_ENV = NGCPRedis
local defaults = {
host = 'localhost',
port = 6379,
db = 0
}
-- class NGCPRedis
NGCPRedis.__tostring = function (t)
return string.format("config:%s", utable.tostring(t.config))
end
function NGCPRedis:new(config)
local t = NGCPRedis:create()
t.config = utils.merge_defaults(config, defaults)
return t;
end
function NGCPRedis:test_connection()
if not self.client then return nil end
local ok, _ = pcall(self.client.ping, self.client)
if not ok then
KSR.info(string.format("close redis server[%d]\n",
self.client.network.socket:getfd()))
self.client.network.socket:close()
self.client = nil
end
return ok
end
function NGCPRedis:connect()
self.client = redis.connect(self.config.host, self.config.port)
self.client:select(self.config.db)
KSR.info(string.format("connected to redis server[%d] %s:%s at %s\n",
self.client.network.socket:getfd(),
self.config.host, tostring(self.config.port), tostring(self.config.db)))
return self.client
end
return NGCPRedis