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lua-ngcp-kamailio/ngcp/xavp.lua

136 lines
4.4 KiB

--
-- Copyright 2013 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".
--
require 'ngcp.utils'
-- class NGCPXAvp
NGCPXAvp = {
__class__ = 'NGCPXAvp'
}
NGCPXAvp_MT = {
__index = NGCPXAvp
}
function NGCPXAvp:new(level,group,l)
local t = NGCPXAvp.init(level,group,l)
NGCPXAvp_MT.__call = function(t, key, value)
if not key then
error("key is empty")
end
local id = string.format("$xavp(%s[0]=>%s)", t.name, key)
--print(string.format("id:%s", id))
if not value then
return sr.pv.get(id)
elseif type(value) == "number" then
table.add(t.keys, key)
sr.log("dbg", string.format("seti: [%s]:%d", id, value))
sr.pv.seti(id, value)
elseif type(value) == "string" then
table.add(t.keys, key)
sr.log("dbg", string.format("sets: [%s]:%s", id, value))
sr.pv.sets(id, value)
else
error("value is not a number or string")
end
end
NGCPXAvp_MT.__tostring = function (t)
local l,k,v
local output
l = sr.xavp.get(t.name, 0)
if l then
output = table.tostring(l)
end
sr.log("dbg", string.format("output:%s", output))
return output
end
setmetatable( t, NGCPXAvp_MT )
return t
end
function NGCPXAvp.init(level,group,l)
if level ~= 'caller' and level ~= 'callee' then
error("unknown level. It has to be [caller|callee]")
end
if not l then
l = {}
end
local t = {
group = group,
level = level,
name = level .. '_' .. group,
keys = {}
}
NGCPXAvp._create(t, l)
return t
end
function NGCPXAvp._setvalue(id, vtype, value)
local check = nil
-- sr.log("info", string.format("vtype:[%s]:%d", type(vtype), vtype))
if type(vtype) == "string" then
vtype = tonumber(vtype)
end
if vtype == 0 then
sr.log("dbg",string.format("sr.pv.sets->%s:%s", id, value))
if type(value) == 'number' then
value = tostring(value)
end
sr.pv.sets(id, value)
elseif vtype == 1 then
if type(value) == "string" then
value = tonumber(value)
end
sr.pv.seti(id, value)
else
sr.log("err",string.format("can't set value:%s of type:%d", value, vtype))
end
if value and id then
check = sr.pv.get(id)
if check then
if type(check) == 'table' then
check = table.tostring(check)
end
else
--error(string.format("%s:nil", id))
sr.log("err", string.format("%s:nil", id))
end
end
end
function NGCPXAvp:_create(l)
local i
local name = string.format("$xavp(%s=>dummy)", self.name)
if not sr.pv.get(name) then
NGCPXAvp._setvalue(name, 0, self.level)
sr.log("dbg",string.format("%s created with dummy value:%s", name, self.level))
end
for i=1,#l do
name = string.format("$xavp(%s[0]=>%s)", self.name, l[i].attribute)
table.add(self.keys, l[i].attribute)
NGCPXAvp._setvalue(name, l[i].type, l[i].value)
end
end
function NGCPXAvp:clean()
sr.pv.unset(string.format("$xavp(%s)", self.name))
sr.pv.sets(string.format("$xavp(%s=>dummy)", self.name), self.level)
end
-- class
--EOF