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-- Copyright 2015-2016 Mirantis, Inc.
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
require "string"
local l = require 'lpeg'
l.locale(l)
local patt = require 'os_patterns'
local utils = require 'os_utils'
local msg = {
Timestamp = nil,
Type = 'log',
Hostname = nil,
Payload = nil,
Pid = nil,
Fields = {},
Severity = nil,
}
local sp = patt.sp
local colon = patt.colon
-- mysqld logs are cranky,the date is YYMMMDD, the hours have no leading zero and the "real" severity level is enclosed by square brackets...
local mysql_grammar = l.Ct(l.digit^-6 * sp^1 * l.digit^-2 * colon * l.digit^-2 * colon * l.digit^-2 * sp^1 * l.P"[" * l.Cg(l.R("az", "AZ")^0 / string.upper, "SeverityLabel") * l.P"]" * sp^1 * l.Cg(patt.Message, "Message"))
function process_message ()
local log = read_message("Payload")
local logger = read_message("Logger")
local m = mysql_grammar:match(log)
if not m then return -1 end
msg.Logger = logger
msg.Payload = m.Message
msg.Fields.severity_label = m.SeverityLabel
return utils.safe_inject_message(msg)
end
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