update nodejs client

binding/nodejs/ip2region.js

@@ -6,29 +6,59 @@
  * @author dongyado<dongyado@gmail.com>
  * */
 
+
+function Ip2region(db_path)
+{
     var fs   = require('fs');
+    var ipbase = [16777216, 65536, 256, 1]; // for ip2long
     var ip2r = {};
-ip2r.db_file    = null;
+    ip2r.db_file_path   = null;
     ip2r.db_fd          = null;
 
-
-exports.setDbFile = function(path)
-{
-    ip2r.db_file = path;
-    ip2r.db_fd   = fs.open(ip2r.db_file);
+    // db file check
+    if (typeof(db_path) == "undefined" || fs.exists(db_path) ) {
+        throw("[ip2region] db file not exists : " + db_path);
     }
     
-exports.getDbFile = function(path)
-{
-    return ip2r.db_file;
+    ip2r.db_file_path = db_path; 
+
+    try {
+        ip2r.db_fd = fs.openSync(ip2r.db_file_path, 'r');
+    } catch(e) {
+        throw("[ip2region] Can not open ip2region.db file , path : " + ip2r.db_file_path);
     }
 
-exports.binarySearch = function(ip)
+
+    this.binarySearch = function(ip)
     {
-    return ip;
+        var buffer = new Buffer(8);
+        fs.readSync(ip2r.db_fd, buffer, 0, 8, 0);
+        console.log(buffer[0]);
+
+
+
+        return ip2long(ip);
     }
 
-exports.btreeSearch = function(ip) 
+    this.btreeSearch = function(ip) 
     {
-    return ip;
+        return ip2long(ip);
     }
+
+    function ip2long(ip)
+    {
+        var val = 0;
+        ip.split('.').forEach(function(ele, i){
+            val += ipbase[i] * ele;
+        }); 
+
+        return val;
+    }
+
+    function getLong(buffer) 
+    {
+        
+    }
+}
+
+module.exports = Ip2region;

binding/nodejs/test.js

@@ -2,9 +2,7 @@
  * test program
  * */
 
-var ip2r = require('./ip2region');
+var Ip2region = require('./ip2region');
+var ip2region = new Ip2region('../../data/ip2region.db'); 
 
-ip2r.setDbFile('./ip2region.db');
-
-console.log(ip2r.getDbFile());
-console.log(ip2r.binarySearch("12321231"));
+console.log(ip2region.binarySearch("114.114.114.114"));