renamed statsd to dogstatsd since we support tags now

Author: mcmoyer

README.md

@@ -15,7 +15,7 @@ use in a location stanza:
 
 ```
 local conf = { host = "127.0.0.1", port = 8125, namespace = "Lua_Stats_App", timeout = 1}
-local statsd_logger = require "ngx_lua_statsd"
+local statsd_logger = require "ngx_lua_datadog"
 local logger, err = statsd_logger:new(conf)
 
 if err then

lib/ngx_lua_datadog.lua

@@ -1,28 +1,27 @@
-local ngx_socket_udp = ngx.socket.udp
 local table_concat = table.concat
 local setmetatable = setmetatable
 
-local statsd_mt = {}
-statsd_mt.__index = statsd_mt
+local dogstatsd_mt = {}
+dogstatsd_mt.__index = dogstatsd_mt
 
-function statsd_mt:new(conf)
-  local sock = ngx_socket_udp()
+function dogstatsd_mt:new(conf)
+  local sock = ngx.socket.udp()
   sock:settimeout(conf.timeout)
   local _, err = sock:setpeername(conf.host, conf.port)
   if err then
     return nil, "failed to connect to "..conf.host..":"..tostring(conf.port)..": "..err
   end
 
-  local statsd = {
+  local dogstatsd = {
     host = conf.host,
     port = conf.port,
     socket = sock,
     namespace = conf.namespace
   }
-  return setmetatable(statsd, statsd_mt)
+  return setmetatable(dogstatsd, dogstatsd_mt)
 end
 
-function statsd_mt:create_statsd_message(stat, delta, kind, sample_rate, tags)
+function dogstatsd_mt:create_dogstatsd_message(stat, delta, kind, sample_rate, tags)
   local rate = ""
   if sample_rate and sample_rate ~= 1 then 
     rate = "|@"..sample_rate 
@@ -47,45 +46,45 @@ function statsd_mt:create_statsd_message(stat, delta, kind, sample_rate, tags)
   return table_concat(message, "")
 end
 
-function statsd_mt:close_socket()
+function dogstatsd_mt:close_socket()
   local ok, err = self.socket:close()
   if not ok then
     ngx.log(ngx.ERR, "failed to close connection from "..self.host..":"..tostring(self.port)..": ", err)
     return
   end
 end
 
-function statsd_mt:send_statsd(stat, delta, kind, sample_rate, tags)
-  local udp_message = self:create_statsd_message(stat, delta, kind, sample_rate, tags)
+function dogstatsd_mt:send_dogstatsd(stat, delta, kind, sample_rate, tags)
+  local udp_message = self:create_dogstatsd_message(stat, delta, kind, sample_rate, tags)
   local ok, err = self.socket:send(udp_message)
   if not ok then
     ngx.log(ngx.ERR, "failed to send data to "..self.host..":"..tostring(self.port)..": ", err)
   end
 end
 
-function statsd_mt:gauge(stat, value, sample_rate, tags)
-  return self:send_statsd(stat, value, "g", sample_rate, tags)
+function dogstatsd_mt:gauge(stat, value, sample_rate, tags)
+  return self:send_dogstatsd(stat, value, "g", sample_rate, tags)
 end
 
-function statsd_mt:counter(stat, value, sample_rate, tags)
-  return self:send_statsd(stat, value, "c", sample_rate, tags)
+function dogstatsd_mt:counter(stat, value, sample_rate, tags)
+  return self:send_dogstatsd(stat, value, "c", sample_rate, tags)
 end
 
-function statsd_mt:timer(stat, ms, tags)
-  return self:send_statsd(stat, ms, "ms", nil, tags)
+function dogstatsd_mt:timer(stat, ms, tags)
+  return self:send_dogstatsd(stat, ms, "ms", nil, tags)
 end
 
-function statsd_mt:histogram(stat, value, tags)
-  return self:send_statsd(stat, value, "h", nil, tags)
+function dogstatsd_mt:histogram(stat, value, tags)
+  return self:send_dogstatsd(stat, value, "h", nil, tags)
 end
 
-function statsd_mt:meter(stat, value, tags)
-  return self:send_statsd(stat, value, "m", nil, tags)
+function dogstatsd_mt:meter(stat, value, tags)
+  return self:send_dogstatsd(stat, value, "m", nil, tags)
 end
 
-function statsd_mt:set(stat, value, tags)
-  return self:send_statsd(stat, value, "s", nil, tags)
+function dogstatsd_mt:set(stat, value, tags)
+  return self:send_dogstatsd(stat, value, "s", nil, tags)
 end
 
-return statsd_mt
+return dogstatsd_mt