diff --git a/server/Husky/IRequestHandler.hpp b/server/Husky/IRequestHandler.hpp
deleted file mode 100644
index 6e7522f..0000000
--- a/server/Husky/IRequestHandler.hpp
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef HUSKY_IREQUESTHANDLER_HPP
-#define HUSKY_IREQUESTHANDLER_HPP
-
-#include "HttpReqInfo.hpp"
-
-namespace Husky {
-class IRequestHandler {
- public:
-  virtual ~IRequestHandler() {};
- public:
-  virtual bool do_GET(const HttpReqInfo& httpReq, string& res) const = 0;
-  virtual bool do_POST(const HttpReqInfo& httpReq, string& res) const = 0;
-};
-}
-
-#endif
diff --git a/server/Husky/HttpReqInfo.hpp b/server/husky/HttpReqInfo.hpp
similarity index 89%
rename from server/Husky/HttpReqInfo.hpp
rename to server/husky/HttpReqInfo.hpp
index 4f5a811..2dc8e76 100644
--- a/server/Husky/HttpReqInfo.hpp
+++ b/server/husky/HttpReqInfo.hpp
@@ -3,11 +3,11 @@
 
 #include <iostream>
 #include <string>
-#include "Limonp/Logger.hpp"
-#include "Limonp/StringUtil.hpp"
+#include "limonp/Logger.hpp"
+#include "limonp/StringUtil.hpp"
 
-namespace Husky {
-using namespace Limonp;
+namespace husky {
+using namespace limonp;
 using namespace std;
 
 static const char* const KEY_METHOD = "METHOD";
@@ -62,7 +62,7 @@ class HttpReqInfo {
     _isBodyFinished = false;
     _contentLength = 0;
   }
- public:
+
   bool parseHeader(const string& buffer) {
     return parseHeader(buffer.c_str(), buffer.size());
   }
@@ -77,7 +77,8 @@ class HttpReqInfo {
     }
     string firstline(headerStr, lpos, rpos - lpos);
     trim(firstline);
-    if(!split(firstline, buf, " ") || 3 != buf.size()) {
+    split(firstline, buf, " ");
+    if (3 != buf.size()) {
       LogError("parse header firstline[%s] failed.", firstline.c_str());
       return false;
     }
@@ -141,7 +142,7 @@ class HttpReqInfo {
   bool isBodyFinished() const {
     return _isBodyFinished;
   }
- public:
+
   const string& set(const string& key, const string& value) {
     return _headerMap[key] = value;
   }
@@ -149,8 +150,30 @@ class HttpReqInfo {
     return _find(_headerMap, key, res);
   }
   bool GET(const string& argKey, string& res)const {
-    return _find(_methodGetMap, argKey, res);
+    string tmp;
+    if (!_find(_methodGetMap, argKey, tmp)) {
+      return false;
+    }
+    URLDecode(tmp, res);
+    return true;
   }
+  bool GET(const string& argKey, int& res) const {
+    string tmp;
+    if (!GET(argKey, tmp)) {
+      return false;
+    }
+    res = atoi(tmp.c_str());
+    return true;
+  }
+  bool GET(const string& argKey, size_t& res) const {
+    int tmp = 0;
+    if (!GET(argKey, tmp) || tmp < 0) {
+      return false;
+    }
+    res = tmp;
+    return true;
+  }
+
   //const string& getMethod() const
   //{
   //    return _headerMap.find(KEY_METHOD)->second;
@@ -190,7 +213,7 @@ class HttpReqInfo {
   string _path;
   string _body;
   friend ostream& operator<<(ostream& os, const HttpReqInfo& obj);
- private:
+
   bool _find(const std::unordered_map<string, string>& mp, const string& key, string& res)const {
     std::unordered_map<string, string>::const_iterator it = mp.find(key);
     if(it == mp.end()) {
@@ -199,7 +222,7 @@ class HttpReqInfo {
     res = it->second;
     return true;
   }
- private:
+
   void _parseUri(const string& uri, string& path, std::unordered_map<string, string>& mp) {
     if(uri.empty()) {
       return;
@@ -235,7 +258,7 @@ class HttpReqInfo {
   }
 };
 
-inline std::ostream& operator << (std::ostream& os, const Husky::HttpReqInfo& obj) {
+inline std::ostream& operator << (std::ostream& os, const husky::HttpReqInfo& obj) {
   return os << obj._headerMap << obj._methodGetMap/* << obj._methodPostMap*/ << obj._path << obj._body ;
 }
 
diff --git a/server/husky/IRequestHandler.hpp b/server/husky/IRequestHandler.hpp
new file mode 100644
index 0000000..d5bee48
--- /dev/null
+++ b/server/husky/IRequestHandler.hpp
@@ -0,0 +1,17 @@
+#ifndef HUSKY_IREQUESTHANDLER_HPP
+#define HUSKY_IREQUESTHANDLER_HPP
+
+#include "HttpReqInfo.hpp"
+
+namespace husky {
+class IRequestHandler {
+ public:
+  virtual ~IRequestHandler() {
+  }
+
+  virtual bool doGET(const HttpReqInfo& httpReq, string& res) = 0;
+  virtual bool doPOST(const HttpReqInfo& httpReq, string& res) = 0;
+};
+}
+
+#endif
diff --git a/server/Husky/NetUtils.hpp b/server/husky/NetUtils.hpp
similarity index 88%
rename from server/Husky/NetUtils.hpp
rename to server/husky/NetUtils.hpp
index deec0db..b436cea 100644
--- a/server/Husky/NetUtils.hpp
+++ b/server/husky/NetUtils.hpp
@@ -15,14 +15,14 @@
 #include <unistd.h>
 #include <vector>
 
-#include "Limonp/StdExtension.hpp"
-#include "Limonp/Logger.hpp"
+#include "limonp/StdExtension.hpp"
+#include "limonp/Logger.hpp"
 
-namespace Husky {
+namespace husky {
 static const size_t LISTEN_QUEUE_LEN = 1024;
 
 typedef int SocketFd;
-SocketFd CreateAndListenSocket(int port) {
+inline SocketFd CreateAndListenSocket(int port) {
   SocketFd sock;
   sock = socket(AF_INET, SOCK_STREAM, 0);
   if (sock == -1) {
@@ -50,7 +50,7 @@ SocketFd CreateAndListenSocket(int port) {
 
 const char* const HTTP_FORMAT = "HTTP/1.1 200 OK\r\nConnection: close\r\nServer: HuskyServer/1.0.0\r\nContent-Type: text/json; charset=%s\r\nContent-Length: %d\r\n\r\n%s";
 const char* const CHARSET_UTF8 = "UTF-8";
-} // namespace Husky
+} // namespace husky
 
 
 #endif
diff --git a/server/Husky/ThreadPoolServer.hpp b/server/husky/ThreadPoolServer.hpp
similarity index 74%
rename from server/Husky/ThreadPoolServer.hpp
rename to server/husky/ThreadPoolServer.hpp
index 02a16d2..9d69b25 100644
--- a/server/Husky/ThreadPoolServer.hpp
+++ b/server/husky/ThreadPoolServer.hpp
@@ -4,21 +4,17 @@
 #include "NetUtils.hpp"
 #include "WorkerThread.hpp"
 
-namespace Husky {
-using namespace Limonp;
+namespace husky {
+using namespace limonp;
 
 class ThreadPoolServer {
- private:
-  ThreadPool _pool;
-  const IRequestHandler & _reqHandler;
-  int _host_socket;
  public:
-  ThreadPoolServer(size_t thread_number, size_t queue_max_size, size_t port, const IRequestHandler & handler):
+  ThreadPoolServer(size_t thread_number, size_t queue_max_size, size_t port, IRequestHandler & handler):
     _pool(thread_number, queue_max_size), _reqHandler(handler), _host_socket(-1) {
     _host_socket = CreateAndListenSocket(port);
   }
   ~ThreadPoolServer() {};
- public:
+
   bool start() {
     _pool.start();
     sockaddr_in clientaddr;
@@ -30,10 +26,16 @@ class ThreadPoolServer {
         LogError(strerror(errno));
         break;
       }
-      _pool.add(CreateTask<WorkerThread,int, const IRequestHandler&>(clientSock, _reqHandler));
+      _pool.add(CreateTask<WorkerThread,int, IRequestHandler&>(clientSock, _reqHandler));
     }
     return true;
   }
-};
-}
+
+ private:
+  ThreadPool _pool;
+  IRequestHandler & _reqHandler;
+  int _host_socket;
+}; // class ThreadPoolServer
+} // namespace husky
+
 #endif
diff --git a/server/Husky/WorkerThread.hpp b/server/husky/WorkerThread.hpp
similarity index 86%
rename from server/Husky/WorkerThread.hpp
rename to server/husky/WorkerThread.hpp
index 08937f2..0f8da79 100644
--- a/server/Husky/WorkerThread.hpp
+++ b/server/husky/WorkerThread.hpp
@@ -1,11 +1,11 @@
 #ifndef HUSKY_WORKER_HPP
 #define HUSKY_WORKER_HPP
 
-#include "Limonp/ThreadPool.hpp"
+#include "limonp/ThreadPool.hpp"
 #include "IRequestHandler.hpp"
 #include "NetUtils.hpp"
 
-namespace Husky {
+namespace husky {
 const char* const CLIENT_IP_K = "CLIENT_IP";
 const size_t RECV_BUFFER_SIZE = 16 * 1024;
 
@@ -14,14 +14,11 @@ const struct timeval SOCKET_TIMEOUT = {16, 0};
 
 class WorkerThread: public ITask {
  public:
-  WorkerThread(int sockfs, const IRequestHandler& reqHandler):
+  WorkerThread(int sockfs, IRequestHandler& reqHandler):
     _sockfd(sockfs), _reqHandler(reqHandler) {
   }
   virtual ~WorkerThread() {
   }
- private:
-  int _sockfd;
-  const IRequestHandler& _reqHandler;
 
  public:
   void run() {
@@ -37,12 +34,12 @@ class WorkerThread: public ITask {
         break;
       }
 
-      if(httpReq.isGET() && !_reqHandler.do_GET(httpReq, strRetByHandler)) {
-        LogError("do_GET failed.");
+      if(httpReq.isGET() && !_reqHandler.doGET(httpReq, strRetByHandler)) {
+        LogError("doGET failed.");
         break;
       }
-      if(httpReq.isPOST() && !_reqHandler.do_POST(httpReq, strRetByHandler)) {
-        LogError("do_POST failed.");
+      if(httpReq.isPOST() && !_reqHandler.doPOST(httpReq, strRetByHandler)) {
+        LogError("doPOST failed.");
         break;
       }
       strSnd = string_format(HTTP_FORMAT, CHARSET_UTF8, strRetByHandler.length(), strRetByHandler.c_str());
@@ -101,7 +98,9 @@ class WorkerThread: public ITask {
     }
     return true;
   }
-
+ private:
+  int _sockfd;
+  IRequestHandler& _reqHandler;
 };
 }
 
diff --git a/server/server.cpp b/server/server.cpp
index f56e7c5..2f4fabd 100644
--- a/server/server.cpp
+++ b/server/server.cpp
@@ -3,11 +3,11 @@
 #include <string>
 #include <ctype.h>
 #include <string.h>
-#include "Limonp/Config.hpp"
-#include "Husky/ThreadPoolServer.hpp"
+#include "limonp/Config.hpp"
+#include "husky/ThreadPoolServer.hpp"
 #include "Application.hpp"
 
-using namespace Husky;
+using namespace husky;
 using namespace CppJieba;
 
 class ReqHandler: public IRequestHandler {
@@ -17,7 +17,7 @@ class ReqHandler: public IRequestHandler {
   virtual ~ReqHandler() {
   }
 
-  virtual bool do_GET(const HttpReqInfo& httpReq, string& strSnd) const {
+  virtual bool doGET(const HttpReqInfo& httpReq, string& strSnd) {
     string sentence, method, format;
     string tmp;
     vector<string> words;
@@ -30,7 +30,7 @@ class ReqHandler: public IRequestHandler {
     return true;
   }
 
-  virtual bool do_POST(const HttpReqInfo& httpReq, string& strSnd) const {
+  virtual bool doPOST(const HttpReqInfo& httpReq, string& strSnd) {
     vector<string> words;
     run(httpReq.getBody(), "MIX", "simple", strSnd);
     return true;
diff --git a/src/DictTrie.hpp b/src/DictTrie.hpp
index 9d925f8..231aa2a 100644
--- a/src/DictTrie.hpp
+++ b/src/DictTrie.hpp
@@ -8,13 +8,13 @@
 #include <stdint.h>
 #include <cmath>
 #include <limits>
-#include "Limonp/StringUtil.hpp"
-#include "Limonp/Logger.hpp"
+#include "limonp/StringUtil.hpp"
+#include "limonp/Logger.hpp"
 #include "TransCode.hpp"
 #include "Trie.hpp"
 
 namespace CppJieba {
-using namespace Limonp;
+using namespace limonp;
 const double MIN_DOUBLE = -3.14e+100;
 const double MAX_DOUBLE = 3.14e+100;
 const size_t DICT_COLUMN_NUM = 3;
diff --git a/src/FullSegment.hpp b/src/FullSegment.hpp
index 351198b..a8edb40 100644
--- a/src/FullSegment.hpp
+++ b/src/FullSegment.hpp
@@ -4,7 +4,7 @@
 #include <algorithm>
 #include <set>
 #include <cassert>
-#include "Limonp/Logger.hpp"
+#include "limonp/Logger.hpp"
 #include "DictTrie.hpp"
 #include "ISegment.hpp"
 #include "SegmentBase.hpp"
diff --git a/src/HMMModel.hpp b/src/HMMModel.hpp
index a79e720..71cfe2f 100644
--- a/src/HMMModel.hpp
+++ b/src/HMMModel.hpp
@@ -1,11 +1,11 @@
 #ifndef CPPJIEBA_HMMMODEL_H
 #define CPPJIEBA_HMMMODEL_H
 
-#include "Limonp/StringUtil.hpp"
+#include "limonp/StringUtil.hpp"
 
 namespace CppJieba {
 
-using namespace Limonp;
+using namespace limonp;
 typedef unordered_map<uint16_t, double> EmitProbMap;
 
 struct HMMModel {
diff --git a/src/KeywordExtractor.hpp b/src/KeywordExtractor.hpp
index 11fcea8..34c0096 100644
--- a/src/KeywordExtractor.hpp
+++ b/src/KeywordExtractor.hpp
@@ -6,7 +6,7 @@
 #include <set>
 
 namespace CppJieba {
-using namespace Limonp;
+using namespace limonp;
 
 /*utf8*/
 class KeywordExtractor {
@@ -96,7 +96,8 @@ class KeywordExtractor {
         LogError("line[%d] empty. skipped.", lineno);
         continue;
       }
-      if(!split(line, buf, " ") || buf.size() != 2) {
+      split(line, buf, " ");
+      if (buf.size() != 2) {
         LogError("line %d [%s] illegal. skipped.", lineno, line.c_str());
         continue;
       }
diff --git a/src/MPSegment.hpp b/src/MPSegment.hpp
index 1298d67..c0fd036 100644
--- a/src/MPSegment.hpp
+++ b/src/MPSegment.hpp
@@ -4,7 +4,7 @@
 #include <algorithm>
 #include <set>
 #include <cassert>
-#include "Limonp/Logger.hpp"
+#include "limonp/Logger.hpp"
 #include "DictTrie.hpp"
 #include "ISegment.hpp"
 #include "SegmentBase.hpp"
diff --git a/src/MixSegment.hpp b/src/MixSegment.hpp
index c9d0880..3c91899 100644
--- a/src/MixSegment.hpp
+++ b/src/MixSegment.hpp
@@ -4,7 +4,7 @@
 #include <cassert>
 #include "MPSegment.hpp"
 #include "HMMSegment.hpp"
-#include "Limonp/StringUtil.hpp"
+#include "limonp/StringUtil.hpp"
 
 namespace CppJieba {
 class MixSegment: public SegmentBase {
diff --git a/src/PosTagger.hpp b/src/PosTagger.hpp
index 2bb9e76..39b4709 100644
--- a/src/PosTagger.hpp
+++ b/src/PosTagger.hpp
@@ -2,11 +2,11 @@
 #define CPPJIEBA_POS_TAGGING_H
 
 #include "MixSegment.hpp"
-#include "Limonp/StringUtil.hpp"
+#include "limonp/StringUtil.hpp"
 #include "DictTrie.hpp"
 
 namespace CppJieba {
-using namespace Limonp;
+using namespace limonp;
 
 static const char* const POS_M = "m";
 static const char* const POS_ENG = "eng";
diff --git a/src/QuerySegment.hpp b/src/QuerySegment.hpp
index fb95d1d..9bb2801 100644
--- a/src/QuerySegment.hpp
+++ b/src/QuerySegment.hpp
@@ -4,7 +4,7 @@
 #include <algorithm>
 #include <set>
 #include <cassert>
-#include "Limonp/Logger.hpp"
+#include "limonp/Logger.hpp"
 #include "DictTrie.hpp"
 #include "ISegment.hpp"
 #include "SegmentBase.hpp"
diff --git a/src/SegmentBase.hpp b/src/SegmentBase.hpp
index 4989771..531e0dd 100644
--- a/src/SegmentBase.hpp
+++ b/src/SegmentBase.hpp
@@ -2,15 +2,15 @@
 #define CPPJIEBA_SEGMENTBASE_H
 
 #include "TransCode.hpp"
-#include "Limonp/Logger.hpp"
-#include "Limonp/NonCopyable.hpp"
-#include "Limonp/HandyMacro.hpp"
+#include "limonp/Logger.hpp"
+#include "limonp/NonCopyable.hpp"
+#include "limonp/HandyMacro.hpp"
 #include "ISegment.hpp"
 #include <cassert>
 
 
 namespace CppJieba {
-using namespace Limonp;
+using namespace limonp;
 
 //const char* const SPECIAL_CHARS = " \t\n";
 #ifndef CPPJIEBA_GBK
diff --git a/src/TransCode.hpp b/src/TransCode.hpp
index d7fa162..52e5ac7 100644
--- a/src/TransCode.hpp
+++ b/src/TransCode.hpp
@@ -6,15 +6,15 @@
 #define CPPJIEBA_TRANSCODE_H
 
 
-#include "Limonp/StringUtil.hpp"
-#include "Limonp/LocalVector.hpp"
+#include "limonp/StringUtil.hpp"
+#include "limonp/LocalVector.hpp"
 
 namespace CppJieba {
 
-using namespace Limonp;
+using namespace limonp;
 
 typedef uint16_t Rune;
-typedef Limonp::LocalVector<Rune> Unicode;
+typedef limonp::LocalVector<Rune> Unicode;
 
 namespace TransCode {
 inline bool decode(const string& str, Unicode& res) {
diff --git a/src/Trie.hpp b/src/Trie.hpp
index ac2659c..80f330a 100644
--- a/src/Trie.hpp
+++ b/src/Trie.hpp
@@ -1,7 +1,7 @@
 #ifndef CPPJIEBA_TRIE_HPP
 #define CPPJIEBA_TRIE_HPP
 
-#include "Limonp/StdExtension.hpp"
+#include "limonp/StdExtension.hpp"
 #include <vector>
 #include <queue>
 
diff --git a/src/Limonp/ArgvContext.hpp b/src/limonp/ArgvContext.hpp
similarity index 98%
rename from src/Limonp/ArgvContext.hpp
rename to src/limonp/ArgvContext.hpp
index 0db265b..1ba1311 100644
--- a/src/Limonp/ArgvContext.hpp
+++ b/src/limonp/ArgvContext.hpp
@@ -10,7 +10,7 @@
 #include <sstream>
 #include "StringUtil.hpp"
 
-namespace Limonp {
+namespace limonp {
 using namespace std;
 class ArgvContext {
  public :
diff --git a/src/Limonp/BlockingQueue.hpp b/src/limonp/BlockingQueue.hpp
similarity index 99%
rename from src/Limonp/BlockingQueue.hpp
rename to src/limonp/BlockingQueue.hpp
index 1806bd1..5b94a19 100644
--- a/src/Limonp/BlockingQueue.hpp
+++ b/src/limonp/BlockingQueue.hpp
@@ -9,7 +9,7 @@ https://github.com/chenshuo/muduo/blob/master/muduo/base/BlockingQueue.h
 #include "BoundedQueue.hpp"
 #include "Condition.hpp"
 
-namespace Limonp {
+namespace limonp {
 template<class T>
 class BlockingQueue: NonCopyable {
  public:
diff --git a/src/Limonp/BoundedQueue.hpp b/src/limonp/BoundedQueue.hpp
similarity index 98%
rename from src/Limonp/BoundedQueue.hpp
rename to src/limonp/BoundedQueue.hpp
index 3f9eef4..ba32c27 100644
--- a/src/Limonp/BoundedQueue.hpp
+++ b/src/limonp/BoundedQueue.hpp
@@ -5,7 +5,7 @@
 #include <fstream>
 #include <cassert>
 
-namespace Limonp {
+namespace limonp {
 using namespace std;
 template<class T>
 class BoundedQueue {
diff --git a/src/Limonp/CastFloat.hpp b/src/limonp/CastFloat.hpp
similarity index 99%
rename from src/Limonp/CastFloat.hpp
rename to src/limonp/CastFloat.hpp
index 9af0069..73426bc 100644
--- a/src/Limonp/CastFloat.hpp
+++ b/src/limonp/CastFloat.hpp
@@ -1,7 +1,7 @@
 #ifndef LIMONP_CAST_FUNCTS_H
 #define LIMONP_CAST_FUNCTS_H
 
-namespace Limonp {
+namespace limonp {
 namespace CastFloat {
 //logical and or
 static const int sign_32 = 0xC0000000;
diff --git a/src/Limonp/Colors.hpp b/src/limonp/Colors.hpp
similarity index 93%
rename from src/Limonp/Colors.hpp
rename to src/limonp/Colors.hpp
index 591037c..d9bf14a 100644
--- a/src/Limonp/Colors.hpp
+++ b/src/limonp/Colors.hpp
@@ -4,7 +4,7 @@
 #include <string>
 #include <stdarg.h>
 
-namespace Limonp {
+namespace limonp {
 using std::string;
 
 enum COLOR {
@@ -31,6 +31,6 @@ static void ColorPrint(const string& str, enum COLOR color = GREEN) {
 }
 #endif
 
-} // namespace Limonp
+} // namespace limonp
 
 #endif
diff --git a/src/Limonp/Condition.hpp b/src/limonp/Condition.hpp
similarity index 97%
rename from src/Limonp/Condition.hpp
rename to src/limonp/Condition.hpp
index 9687e37..7a7bfbd 100644
--- a/src/Limonp/Condition.hpp
+++ b/src/limonp/Condition.hpp
@@ -7,7 +7,7 @@
 
 #include "MutexLock.hpp"
 
-namespace Limonp {
+namespace limonp {
 class Condition : NonCopyable {
  public:
   explicit Condition(MutexLock& mutex)
diff --git a/src/Limonp/Config.hpp b/src/limonp/Config.hpp
similarity index 96%
rename from src/Limonp/Config.hpp
rename to src/limonp/Config.hpp
index c9e2088..ebdafcd 100644
--- a/src/Limonp/Config.hpp
+++ b/src/limonp/Config.hpp
@@ -12,7 +12,7 @@
 #include <assert.h>
 #include "StringUtil.hpp"
 
-namespace Limonp {
+namespace limonp {
 using namespace std;
 class Config {
  public:
@@ -37,7 +37,8 @@ class Config {
         continue;
       }
       vecBuf.clear();
-      if(!split(line, vecBuf, "=") || 2 != vecBuf.size()) {
+      split(line, vecBuf, "=");
+      if(2 != vecBuf.size()) {
         fprintf(stderr, "line[%s] illegal.\n", line.c_str());
         assert(false);
         continue;
diff --git a/src/Limonp/HandyMacro.hpp b/src/limonp/HandyMacro.hpp
similarity index 95%
rename from src/Limonp/HandyMacro.hpp
rename to src/limonp/HandyMacro.hpp
index 0f9102c..e461b3d 100644
--- a/src/Limonp/HandyMacro.hpp
+++ b/src/limonp/HandyMacro.hpp
@@ -7,7 +7,7 @@
 #define LIMONP_CHECK(exp) \
     if(!(exp)){fprintf(stderr, "File:%s, Line:%d Exp:[" #exp "] is true, abort.\n", __FILE__, __LINE__); abort();}
 
-#define print(x) cout<< #x": " << x <<endl
+#define print(x) cout << x << endl
 /*
 #define XX_GET_SET(varType, varName, funName)\
 private: varType varName;\
diff --git a/src/Limonp/InitOnOff.hpp b/src/limonp/InitOnOff.hpp
similarity index 95%
rename from src/Limonp/InitOnOff.hpp
rename to src/limonp/InitOnOff.hpp
index c420155..35627fd 100644
--- a/src/Limonp/InitOnOff.hpp
+++ b/src/limonp/InitOnOff.hpp
@@ -1,7 +1,7 @@
 #ifndef LIMONP_INITONOFF_H
 #define LIMONP_INITONOFF_H
 
-namespace Limonp {
+namespace limonp {
 class InitOnOff {
  public:
   InitOnOff():isInited_(false) {};
diff --git a/src/Limonp/LocalVector.hpp b/src/limonp/LocalVector.hpp
similarity index 99%
rename from src/Limonp/LocalVector.hpp
rename to src/limonp/LocalVector.hpp
index 93baf1f..a7b9d01 100644
--- a/src/Limonp/LocalVector.hpp
+++ b/src/limonp/LocalVector.hpp
@@ -6,7 +6,7 @@
 #include <assert.h>
 #include <string.h>
 
-namespace Limonp {
+namespace limonp {
 using namespace std;
 /*
  * LocalVector<T> : T must be primitive type (char , int, size_t), if T is struct or class, LocalVector<T> may be dangerous..
diff --git a/src/Limonp/Logger.hpp b/src/limonp/Logger.hpp
similarity index 70%
rename from src/Limonp/Logger.hpp
rename to src/limonp/Logger.hpp
index d46cb9a..cf79a06 100644
--- a/src/Limonp/Logger.hpp
+++ b/src/limonp/Logger.hpp
@@ -16,15 +16,13 @@
 #include <time.h>
 #include <cassert>
 
-#define FILE_BASENAME strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILE__
+#define LogDebug(fmt, ...) limonp::Logger::LoggingF(limonp::LL_DEBUG, __FILE__, __LINE__, fmt, ## __VA_ARGS__)
+#define LogInfo(fmt, ...) limonp::Logger::LoggingF(limonp::LL_INFO, __FILE__, __LINE__, fmt, ## __VA_ARGS__)
+#define LogWarn(fmt, ...) limonp::Logger::LoggingF(limonp::LL_WARN, __FILE__, __LINE__, fmt, ## __VA_ARGS__)
+#define LogError(fmt, ...) limonp::Logger::LoggingF(limonp::LL_ERROR, __FILE__, __LINE__, fmt, ## __VA_ARGS__)
+#define LogFatal(fmt, ...) {limonp::Logger::LoggingF(limonp::LL_FATAL, __FILE__, __LINE__, fmt, ## __VA_ARGS__); abort();}
 
-#define LogDebug(fmt, ...) Limonp::Logger::LoggingF(Limonp::LL_DEBUG, FILE_BASENAME, __LINE__, fmt, ## __VA_ARGS__)
-#define LogInfo(fmt, ...) Limonp::Logger::LoggingF(Limonp::LL_INFO, FILE_BASENAME, __LINE__, fmt, ## __VA_ARGS__)
-#define LogWarn(fmt, ...) Limonp::Logger::LoggingF(Limonp::LL_WARN, FILE_BASENAME, __LINE__, fmt, ## __VA_ARGS__)
-#define LogError(fmt, ...) Limonp::Logger::LoggingF(Limonp::LL_ERROR, FILE_BASENAME, __LINE__, fmt, ## __VA_ARGS__)
-#define LogFatal(fmt, ...) {Limonp::Logger::LoggingF(Limonp::LL_FATAL, FILE_BASENAME, __LINE__, fmt, ## __VA_ARGS__); abort();}
-
-namespace Limonp {
+namespace limonp {
 using namespace std;
 enum {LL_DEBUG = 0, LL_INFO = 1, LL_WARN = 2, LL_ERROR = 3, LL_FATAL = 4, LEVEL_ARRAY_SIZE = 5, CSTR_BUFFER_SIZE = 32};
 static const char * LOG_LEVEL_ARRAY[LEVEL_ARRAY_SIZE]= {"DEBUG","INFO","WARN","ERROR","FATAL"};
diff --git a/src/Limonp/Md5.hpp b/src/limonp/Md5.hpp
similarity index 96%
rename from src/Limonp/Md5.hpp
rename to src/limonp/Md5.hpp
index 2b82bbd..d30f3b5 100644
--- a/src/Limonp/Md5.hpp
+++ b/src/limonp/Md5.hpp
@@ -31,7 +31,7 @@
 #include <cstring>
 #include <iostream>
 
-namespace Limonp {
+namespace limonp {
 
 //#pragma region MD5 defines
 // Constants for MD5Transform routine.
diff --git a/src/Limonp/MutexLock.hpp b/src/limonp/MutexLock.hpp
similarity index 97%
rename from src/Limonp/MutexLock.hpp
rename to src/limonp/MutexLock.hpp
index 5f9ecbd..cdcce18 100644
--- a/src/Limonp/MutexLock.hpp
+++ b/src/limonp/MutexLock.hpp
@@ -5,7 +5,7 @@
 #include "NonCopyable.hpp"
 #include "HandyMacro.hpp"
 
-namespace Limonp {
+namespace limonp {
 class MutexLock: NonCopyable {
  private:
   pthread_mutex_t mutex_;
diff --git a/src/Limonp/MysqlClient.hpp b/src/limonp/MysqlClient.hpp
similarity index 94%
rename from src/Limonp/MysqlClient.hpp
rename to src/limonp/MysqlClient.hpp
index 7395fa9..ecf3076 100644
--- a/src/Limonp/MysqlClient.hpp
+++ b/src/limonp/MysqlClient.hpp
@@ -7,8 +7,9 @@
 #include <string>
 #include "Logger.hpp"
 #include "InitOnOff.hpp"
+#include "StringUtil.hpp"
 
-namespace Limonp {
+namespace limonp {
 using namespace std;
 class MysqlClient: public InitOnOff {
  public:
@@ -67,10 +68,8 @@ class MysqlClient: public InitOnOff {
   }
   size_t insert(const string& tableName, const string& keys, const vector<string>& vals) {
     size_t retn = 0;
-    string sql;
     for(size_t i = 0; i < vals.size(); i ++) {
-      sql.clear();
-      string_format(sql, "insert into %s (%s) values %s", tableName.c_str(), keys.c_str(), vals[i].c_str());
+      string sql = string_format("insert into %s (%s) values %s", tableName.c_str(), keys.c_str(), vals[i].c_str());
       retn += executeSql(sql.c_str());
     }
     return retn;
diff --git a/src/Limonp/NonCopyable.hpp b/src/limonp/NonCopyable.hpp
similarity index 94%
rename from src/Limonp/NonCopyable.hpp
rename to src/limonp/NonCopyable.hpp
index c47e66b..1e58027 100644
--- a/src/Limonp/NonCopyable.hpp
+++ b/src/limonp/NonCopyable.hpp
@@ -6,7 +6,7 @@
 #include <iostream>
 #include <string>
 
-namespace Limonp {
+namespace limonp {
 class NonCopyable {
  protected:
   NonCopyable() {};
diff --git a/src/Limonp/StdExtension.hpp b/src/limonp/StdExtension.hpp
similarity index 100%
rename from src/Limonp/StdExtension.hpp
rename to src/limonp/StdExtension.hpp
diff --git a/src/Limonp/StringUtil.hpp b/src/limonp/StringUtil.hpp
similarity index 87%
rename from src/Limonp/StringUtil.hpp
rename to src/limonp/StringUtil.hpp
index 0efab05..e57482c 100644
--- a/src/Limonp/StringUtil.hpp
+++ b/src/limonp/StringUtil.hpp
@@ -23,7 +23,7 @@
 #include <algorithm>
 #include "StdExtension.hpp"
 
-namespace Limonp {
+namespace limonp {
 using namespace std;
 inline string string_format(const char* fmt, ...) {
   int size = 256;
@@ -68,39 +68,6 @@ string join(T begin, T end, const string& connector) {
   return res;
 }
 
-
-
-inline bool split(const string& src, vector<string>& res, const string& pattern, size_t offset = 0, size_t len = string::npos) {
-  if(src.empty()) {
-    return false;
-  }
-  res.clear();
-
-  size_t start = 0;
-  size_t end = 0;
-  size_t cnt = 0;
-  while(start < src.size() && res.size() < len) {
-    end = src.find_first_of(pattern, start);
-    if(string::npos == end) {
-      if(cnt >= offset) {
-        res.push_back(src.substr(start));
-      }
-      return true;
-    }
-    //if(end == src.size() - 1)
-    //{
-    //    res.push_back("");
-    //    return true;
-    //}
-    if(cnt >= offset) {
-      res.push_back(src.substr(start, end - start));
-    }
-    cnt ++;
-    start = end + 1;
-  }
-  return true;
-}
-
 inline string& upper(string& str) {
   transform(str.begin(), str.end(), str.begin(), (int (*)(int))toupper);
   return str;
@@ -111,34 +78,56 @@ inline string& lower(string& str) {
   return str;
 }
 
-inline std::string &ltrim(std::string &s) {
+inline std::string& ltrim(std::string &s) {
   s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
   return s;
 }
 
-inline std::string &rtrim(std::string &s) {
+inline std::string& rtrim(std::string &s) {
   s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
   return s;
 }
 
-inline std::string &trim(std::string &s) {
+inline std::string& trim(std::string &s) {
   return ltrim(rtrim(s));
 }
 
-inline std::string & ltrim(std::string & s, char x) {
+inline std::string& ltrim(std::string & s, char x) {
   s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::bind2nd(std::equal_to<char>(), x))));
   return s;
 }
 
-inline std::string & rtrim(std::string & s, char x) {
+inline std::string& rtrim(std::string & s, char x) {
   s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::bind2nd(std::equal_to<char>(), x))).base(), s.end());
   return s;
 }
 
-inline std::string &trim(std::string &s, char x) {
+inline std::string& trim(std::string &s, char x) {
   return ltrim(rtrim(s, x), x);
 }
 
+inline void split(const string& src, vector<string>& res, const string& pattern, size_t maxsplit = string::npos) {
+  res.clear();
+  size_t start = 0;
+  size_t end = 0;
+  string sub;
+  while(start < src.size()) {
+    end = src.find_first_of(pattern, start);
+    if(string::npos == end || res.size() >= maxsplit) {
+      sub = src.substr(start);
+      trim(sub);
+      res.push_back(sub);
+      return;
+    }
+    sub = src.substr(start, end - start);
+    trim(sub);
+    res.push_back(sub);
+    start = end + 1;
+  }
+  return;
+}
+
+
 inline bool startsWith(const string& str, const string& prefix) {
   if(prefix.length() > str.length()) {
     return false;
diff --git a/src/Limonp/Thread.hpp b/src/limonp/Thread.hpp
similarity index 97%
rename from src/Limonp/Thread.hpp
rename to src/limonp/Thread.hpp
index 563ec60..44d1758 100644
--- a/src/Limonp/Thread.hpp
+++ b/src/limonp/Thread.hpp
@@ -4,7 +4,7 @@
 #include "HandyMacro.hpp"
 #include "NonCopyable.hpp"
 
-namespace Limonp {
+namespace limonp {
 class IThread: NonCopyable {
  private:
   pthread_t thread_;
diff --git a/src/Limonp/ThreadPool.hpp b/src/limonp/ThreadPool.hpp
similarity index 81%
rename from src/Limonp/ThreadPool.hpp
rename to src/limonp/ThreadPool.hpp
index cc68516..db71e58 100644
--- a/src/Limonp/ThreadPool.hpp
+++ b/src/limonp/ThreadPool.hpp
@@ -4,13 +4,17 @@
 #include "Thread.hpp"
 #include "BlockingQueue.hpp"
 
-namespace Limonp {
+namespace limonp {
 class ITask {
  public:
   virtual void run() = 0;
   virtual ~ITask() {}
 };
 
+template <class TaskType>
+ITask* CreateTask() {
+  return new TaskType();
+}
 template <class TaskType, class ArgType>
 ITask* CreateTask(ArgType arg) {
   return new TaskType(arg);
@@ -43,7 +47,17 @@ class ThreadPool: NonCopyable {
         if(task == NULL) {
           break;
         }
-        task->run();
+        try {
+          task->run();
+        } catch(std::exception& e) {
+          cerr << "file:" << __FILE__ 
+               << ", line:" << __LINE__ 
+               << ", " << e.what() << endl;
+        } catch(...) {
+          cerr << "file:" << __FILE__ 
+               << ", line:" << __LINE__ 
+               << ", unknown exception." << endl;
+        }
         delete task;
       }
     }
diff --git a/test/load_test.cpp b/test/load_test.cpp
index f6f9116..f7b3619 100644
--- a/test/load_test.cpp
+++ b/test/load_test.cpp
@@ -5,7 +5,7 @@
 #include "../src/HMMSegment.hpp"
 #include "../src/MixSegment.hpp"
 #include "../src/KeywordExtractor.hpp"
-#include "../src/Limonp/Colors.hpp"
+#include "../src/limonp/Colors.hpp"
 
 using namespace CppJieba;