Update the lua interface and add setDbFile interface

.gitignore

@@ -3,6 +3,9 @@
 *.o
 *.pyc
 *~
+*.log
+*.la
+*.so
 META-INF/
 
 # Binary Files #
@@ -40,4 +43,4 @@ target
 
 # Nodejs
 /binding/nodejs/tests/unitTests/__snapshots__
-/binding/nodejs/coverage
+/binding/nodejs/coverage

binding/lua/Ip2region.lua

@@ -22,11 +22,11 @@ local _M = {
 };
 
 _G["Ip2region"] = _M;
-function _M:new(obj)
-    obj = obj or {};
-    setmetatable(obj, {__index = self});
-    return obj;
-end
+-- function _M:new(obj)
+--     obj = obj or {};
+--     setmetatable(obj, {__index = self});
+--     return obj;
+-- end
 
 
 
@@ -109,6 +109,16 @@ function get_file_contents(file)
 end
 
 
+--[[
+set the current db file path
+
+@param  dbFile
+]]--
+function _M:setDbFile(dbFile)
+    self.dbFile = dbFile;
+end
+
+
 --[[
 all the db binary string will be loaded into memory
 then search the memory only and this will a lot faster than disk base search

binding/lua/README.md

@@ -27,22 +27,23 @@ ip2region>>
 * 2, 通过如下流程在你的lua程序中使用
 ```lua
 -- 包含模块
-require "Ip2region";
+local ip2region = require "Ip2region";
 
 -- 创建查询对象
--- dbFile表示ip2region.db数据库文件的地址
-local searcher = Ip2region:new({dbFile: "ip2region.db file path"});
+-- 设置ip2region.db的文件地址，dbFile表示ip2region.db数据库文件的地址
+-- 或者通过设置属性，ip2region.dbFile = "ip2region.db file path";
+ip2region:setDbFile("ip2region.db file path");
 local data;
 
 -- 查询，备注请使用“:”调用方法，不要使用“.”
 -- 1，binary查询
-data = searcher:binarySearch("101.233.153.103");
+data = ip2region:binarySearch("101.233.153.103");
 
 -- 2，btree查询
-data = searcher:btreeSearch("101.233.153.103");
+data = ip2region:btreeSearch("101.233.153.103");
 
 -- 3，memory查询
-data = searcher:memorySearch("101.233.153.103");
+data = ip2region:memorySearch("101.233.153.103");
 
 -- 返回结果如下
 print("city_id=", data.city_id, "region=", data.region);

binding/lua/testSearcher.lua

@@ -12,13 +12,15 @@ Usage: lua testSearcher.lua [ip2region db file] [algorithm]
     os.exit();
 end
 
-local Ip2region = require "Ip2region";
+local ip2region = require "Ip2region";
 -- local cjson = require "cjson";
 -- local socket = require "socket";
 
 
 -- check and parse the dbFile and the method algorithm
-local searcher  = Ip2region:new({dbFile = arg[1]});
+-- set the dbFile
+-- ip2region.dbFile = arg[1];
+ip2region:setDbFile(arg[1]);
 local algorithm = "btree";
 if ( arg[2] ~= nil ) then
     local arg_2 = string.lower(arg[2]);
@@ -51,17 +53,17 @@ while ( true ) do
         break;
     elseif ( line == "quit" ) then
         break;
-    elseif ( searcher:ip2long(line) == nil ) then
+    elseif ( ip2region:ip2long(line) == nil ) then
         print("Invalid ip address=", line);
     else
         local data;
         local s_time = os.clock();
         if ( algorithm == "btree" ) then
-            data = searcher:btreeSearch(line);
+            data = ip2region:btreeSearch(line);
         elseif ( algorithm == "binary" ) then
-            data = searcher:binarySearch(line);
+            data = ip2region:binarySearch(line);
         elseif ( algorithm == "memory" ) then
-            data = searcher:memorySearch(line);
+            data = ip2region:memorySearch(line);
         end
 
         local cost_time = (os.clock() - s_time) * 1000; -- to millseconds