lemmatization proof of concept

.gitignore

@@ -15,6 +15,7 @@ db/pgbouncer.pid
 db/pgbouncer.ini
 upstart/concordia-server.conf
 upstart/pgbouncer.conf
+upstart/lemmagen.conf
 cat/host.cfg
 mgiza-aligner/mgiza/mgizapp/CMakeCache.txt
 mgiza-aligner/mgiza/mgizapp/CMakeFiles/

CMakeLists.txt

@@ -27,6 +27,7 @@ configure_file (
   )
 
 set(COMPILED_BINARIES_PATH "${concordia-server_SOURCE_DIR}/build/concordia-server")
+set(LEMMAGEN_BINARIES_PATH "${concordia-server_SOURCE_DIR}/LemmaGenSockets/LemmaGenSockets/bin/Debug")
 set(SCRIPTS_PATH "${concordia-server_SOURCE_DIR}/scripts")
 configure_file (
   "${concordia-server_SOURCE_DIR}/scripts/cmake_stubs/start.sh.in"
@@ -55,6 +56,12 @@ configure_file (
   "${concordia-server_SOURCE_DIR}/upstart/pgbouncer.conf"
   )
 
+configure_file (
+  "${concordia-server_SOURCE_DIR}/upstart/cmake_stubs/lemmagen.conf.in"
+  "${concordia-server_SOURCE_DIR}/upstart/lemmagen.conf"
+  )
+
+
 configure_file (
   "${concordia-server_SOURCE_DIR}/db/pgbouncer.ini.in"
   "${concordia-server_SOURCE_DIR}/db/pgbouncer.ini"
@@ -214,8 +221,3 @@ if(EXISTS ${UTF8CASE_LIB})
 endif(EXISTS ${UTF8CASE_LIB})
 
 add_subdirectory(concordia-server)
-
-  
-
-
-

LemmaGenSockets/LemmaGenSockets.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 14
+VisualStudioVersion = 14.0.25420.1
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "LemmaGenSockets", "LemmaGenSockets\LemmaGenSockets.csproj", "{3098BC55-2CC9-4612-9F79-8C812B3BE539}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{3098BC55-2CC9-4612-9F79-8C812B3BE539}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3098BC55-2CC9-4612-9F79-8C812B3BE539}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3098BC55-2CC9-4612-9F79-8C812B3BE539}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3098BC55-2CC9-4612-9F79-8C812B3BE539}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

LemmaGenSockets/LemmaGenSockets/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
+    </startup>
+</configuration>

LemmaGenSockets/LemmaGenSockets/LemmaGenSockets.csproj

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{3098BC55-2CC9-4612-9F79-8C812B3BE539}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>LemmaGenSockets</RootNamespace>
+    <AssemblyName>LemmaGenSockets</AssemblyName>
+    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="LemmaSharp">
+      <HintPath>..\LemmaGen\LemmaSharp.dll</HintPath>
+    </Reference>
+    <Reference Include="LemmaSharpPrebuilt">
+      <HintPath>..\LemmaGen\LemmaSharpPrebuilt.dll</HintPath>
+    </Reference>
+    <Reference Include="LemmaSharpPrebuiltCompact">
+      <HintPath>..\LemmaGen\LemmaSharpPrebuiltCompact.dll</HintPath>
+    </Reference>
+    <Reference Include="Lzma#">
+      <HintPath>..\LemmaGen\Lzma#.dll</HintPath>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="LemmatizerListener.cs" />
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

LemmaGenSockets/LemmaGenSockets/LemmatizerListener.cs

@@ -0,0 +1,130 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Net;
+using System.Net.Sockets;
+using System.Threading.Tasks;
+using LemmaSharp;
+
+namespace LemmaGenSockets
+{
+    class LemmatizerListener
+    {
+        private Dictionary<String, ILemmatizer> lemmatizersDict = new Dictionary<string, ILemmatizer>();
+
+        private char[] wordInnerSeparator = { '-' };
+        
+
+        private void initializeLemmatizers()
+        {
+            lemmatizersDict.Add("pl", new LemmatizerPrebuiltCompact(LemmaSharp.LanguagePrebuilt.Polish));
+            lemmatizersDict.Add("en", new LemmatizerPrebuiltCompact(LemmaSharp.LanguagePrebuilt.English));
+        }
+
+        public LemmatizerListener()
+        {
+            initializeLemmatizers();
+        }
+
+        private string lemmatizeSentence(string languageCode, string sentence)
+        {
+            string[] tokens = sentence.Split(null);
+
+            string result = "";
+            foreach (string token in tokens)
+            {
+                result += lemmatizeWord(languageCode, token) + " ";
+            }
+
+            return result.Trim();
+        }
+
+        private string lemmatizeWord(string languageCode, string word)
+        {
+            string[] parts = word.Split(wordInnerSeparator);
+            if (parts.Length == 2)
+            {
+                string firstPart = parts[0];
+                if (!parts[0].EndsWith("o"))
+                {
+                    firstPart = lemmatizersDict[languageCode].Lemmatize(firstPart);
+                }
+                string secondPart = lemmatizersDict[languageCode].Lemmatize(parts[1]);
+                return firstPart + "-" + secondPart;
+            }
+            else
+            {
+                return lemmatizersDict[languageCode].Lemmatize(word);
+            }
+        }
+
+        public void DoListening()
+        {
+            // Data buffer for incoming data.  
+            byte[] bytes = new Byte[1024];
+
+            string data;
+
+            // Establish the local endpoint for the socket.  
+            IPAddress ipAddress = IPAddress.Parse("127.0.0.1");
+            IPEndPoint localEndPoint = new IPEndPoint(ipAddress, 11000);
+
+            // Create a TCP/IP socket.  
+            Socket listener = new Socket(AddressFamily.InterNetwork,
+                SocketType.Stream, ProtocolType.Tcp);
+
+            // Bind the socket to the local endpoint and   
+            // listen for incoming connections.  
+            try
+            {
+                listener.Bind(localEndPoint);
+                listener.Listen(10);
+
+                // Start listening for connections.  
+                while (true)
+                {
+                    // Program is suspended while waiting for an incoming connection.  
+                    Socket handler = listener.Accept();
+                    data = null;
+
+                    // An incoming connection needs to be processed.  
+                    while (true)
+                    {
+                        bytes = new byte[1024];
+                        int bytesRec = handler.Receive(bytes);
+                        data += Encoding.UTF8.GetString(bytes, 0, bytesRec);
+                        if (data.IndexOf("@#@") > -1)
+                        {
+                            break;
+                        }
+                    }
+
+                    data = data.Substring(0, data.IndexOf("@#@"));
+
+                    string languageCode = data.Substring(0, 2);
+                    string sentence = data.Substring(2);
+
+
+                    // Show the data on the console.  
+                    // Console.WriteLine("Sentence received : "+ sentence + ", language code : "+languageCode);
+
+                    // Send lemmatized data back to client.  
+                    byte[] msg = Encoding.UTF8.GetBytes(lemmatizeSentence(languageCode, sentence) + "@#@");
+
+                    handler.Send(msg);
+                    handler.Shutdown(SocketShutdown.Both);
+                    handler.Close();
+                }
+
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine(e.ToString());
+            }
+
+        }
+
+
+    }
+}

LemmaGenSockets/LemmaGenSockets/Program.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Net;
+using System.Net.Sockets;
+using System.Threading.Tasks;
+using LemmaSharp;
+
+namespace LemmaGenSockets
+{
+    class Program
+    {
+
+        // Incoming data from the client.  
+        public static string data = null;
+
+
+
+        static void Main(string[] args)
+        {
+            LemmatizerListener listener = new LemmatizerListener();
+            listener.DoListening();
+        }
+    }
+}

LemmaGenSockets/LemmaGenSockets/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("LemmaGenSockets")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("LemmaGenSockets")]
+[assembly: AssemblyCopyright("Copyright ©  2017")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("3098bc55-2cc9-4612-9f79-8c812b3be539")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

LemmaGenSockets/LemmaGenSockets/bin/Debug/LemmaGenSockets.exe.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
+    </startup>
+</configuration>

LemmaGenSockets/LemmaGenSockets/bin/Debug/LemmaGenSockets.vshost.exe.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
+    </startup>
+</configuration>

LemmaGenSockets/LemmaGenSockets/bin/Debug/LemmaGenSockets.vshost.exe.manifest

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <assemblyIdentity version="1.0.0.0" name="MyApplication.app"/>
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
+    <security>
+      <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3">
+        <requestedExecutionLevel level="asInvoker" uiAccess="false"/>
+      </requestedPrivileges>
+    </security>
+  </trustInfo>
+</assembly>

LemmaGenSockets/LemmaGenSockets/obj/Debug/LemmaGenSockets.csproj.FileListAbsolute.txt

@@ -0,0 +1,10 @@
+j:\documents\visual studio 2015\Projects\LemmaGenSockets\LemmaGenSockets\bin\Debug\LemmaGenSockets.exe.config
+j:\Documents\Visual Studio 2015\Projects\LemmaGenSockets\LemmaGenSockets\bin\Debug\LemmaGenSockets.exe
+j:\Documents\Visual Studio 2015\Projects\LemmaGenSockets\LemmaGenSockets\bin\Debug\LemmaGenSockets.pdb
+j:\Documents\Visual Studio 2015\Projects\LemmaGenSockets\LemmaGenSockets\bin\Debug\LemmaSharp.dll
+j:\Documents\Visual Studio 2015\Projects\LemmaGenSockets\LemmaGenSockets\bin\Debug\LemmaSharpPrebuilt.dll
+j:\Documents\Visual Studio 2015\Projects\LemmaGenSockets\LemmaGenSockets\bin\Debug\LemmaSharpPrebuiltCompact.dll
+j:\Documents\Visual Studio 2015\Projects\LemmaGenSockets\LemmaGenSockets\bin\Debug\Lzma#.dll
+j:\Documents\Visual Studio 2015\Projects\LemmaGenSockets\LemmaGenSockets\obj\Debug\LemmaGenSockets.csprojResolveAssemblyReference.cache
+j:\Documents\Visual Studio 2015\Projects\LemmaGenSockets\LemmaGenSockets\obj\Debug\LemmaGenSockets.exe
+j:\Documents\Visual Studio 2015\Projects\LemmaGenSockets\LemmaGenSockets\obj\Debug\LemmaGenSockets.pdb

concordia-server/CMakeLists.txt

@@ -1,19 +1,6 @@
-add_executable(concordia_server_process
-                  concordia_server_process.cpp
-                  concordia_server.cpp
-                  index_controller.cpp
-                  searcher_controller.cpp
-                  json_generator.cpp
-                  unit_dao.cpp
-                  db_connection.cpp
-                  query_param.cpp
-                  string_param.cpp
-                  int_param.cpp
-                  logger.cpp
-                  int_array_param.cpp
-                  simple_search_result.cpp
-                  complete_concordia_search_result.cpp
-                  tm_dao.cpp
-              )
-target_link_libraries(concordia_server_process fcgi fcgi++ pq concordia config++ log4cpp ${Boost_LIBRARIES} divsufsort utf8case icuuc)
+file(GLOB main_sources "*.cpp")
 
+add_executable(concordia_server_process
+                  ${main_sources}
+               )
+target_link_libraries(concordia_server_process fcgi fcgi++ pq concordia config++ log4cpp ${Boost_LIBRARIES} divsufsort utf8case icuuc)

concordia-server/concordia_server.cpp

@@ -11,6 +11,7 @@
 #include "json_generator.hpp"
 #include "config.hpp"
 #include "logger.hpp"
+#include "socket_lemmatizer.hpp"
 #include "rapidjson/rapidjson.h"
 #include <boost/foreach.hpp>
 #include <boost/ptr_container/ptr_map.hpp>
@@ -93,6 +94,15 @@ std::string ConcordiaServer::handleRequest(std::string & requestString) {
                     }
                 }
                 _indexController->addAlignedSentences(jsonWriter, sourceSentences, targetSentences, tmId);
+            } else if (operation == "lemmatize") {
+                std::string sentence = _getStringParameter(d, "sentence");
+                std::string languageCode = _getStringParameter(d, "languageCode");
+                SocketLemmatizer lemmatizer;
+                std::string lemmatizedSentence = lemmatizer.lemmatizeSentence(languageCode, sentence);
+                jsonWriter.StartObject();
+                jsonWriter.String("lemmatizedSentence");
+                jsonWriter.String(lemmatizedSentence.c_str());
+                jsonWriter.EndObject();
             } else if (operation == REFRESH_INDEX_OP) {
                 int tmId = _getIntParameter(d, TM_ID_PARAM);
                 _indexController->refreshIndexFromRAM(jsonWriter, tmId);

concordia-server/db_connection.hpp

@@ -1,5 +1,5 @@
-#ifndef DB_MANAGER_HDR
-#define DB_MANAGER_HDR
+#ifndef DB_CONNECTION_HDR
+#define DB_CONNECTION_HDR
 
 #include <libpq-fe.h>
 #include <string>

concordia-server/socket_lemmatizer.cpp

@@ -0,0 +1,90 @@
+#include "socket_lemmatizer.hpp"
+
+SocketLemmatizer::SocketLemmatizer() throw(ConcordiaException) :
+                    _sock(-1) {
+    _connect("127.0.0.1" , 11000);
+}
+
+SocketLemmatizer::~SocketLemmatizer() {
+}
+
+/**
+    Connect to a host on a certain port number
+*/
+bool SocketLemmatizer::_connect(std::string address , int port)
+{
+    //create socket if it is not already created
+    if(_sock == -1) {
+        //Create socket
+        _sock = socket(AF_INET , SOCK_STREAM , 0);
+        if (_sock == -1) {
+            throw ConcordiaException("Could not create socket for the lemmatizer.");
+        }
+    }
+
+    //setup address structure
+    if(inet_addr(address.c_str()) == -1) {
+        struct hostent *he;
+        struct in_addr **addr_list;
+
+        //resolve the hostname, its not an ip address
+        if ( (he = gethostbyname( address.c_str() ) ) == NULL) {
+            //gethostbyname failed
+            throw ConcordiaException("gethostbyname: Failed to resolve hostname");
+        }
+
+        //Cast the h_addr_list to in_addr , since h_addr_list also has the ip address in long format only
+        addr_list = (struct in_addr **) he->h_addr_list;
+
+        for(int i = 0; addr_list[i] != NULL; i++) {
+            _server.sin_addr = *addr_list[i];
+            break;
+        }
+    } else { //plain ip address
+        _server.sin_addr.s_addr = inet_addr(address.c_str());
+    }
+
+    _server.sin_family = AF_INET;
+    _server.sin_port = htons(port);
+
+    //Connect to remote server
+    if (connect(_sock , (struct sockaddr *) & _server , sizeof(_server)) < 0) {
+        throw ConcordiaException("connect failed. Error");
+    }
+
+    return true;
+}
+
+/**
+    Send data to the connected host
+*/
+bool SocketLemmatizer::_send_data(std::string data)
+{
+    //Send some data
+    if(send(_sock , data.c_str() , strlen(data.c_str() ) , 0) < 0)  {
+        throw ConcordiaException("Send failed");
+    }
+    return true;
+}
+
+/**
+    Receive data from the connected host
+*/
+std::string SocketLemmatizer::_receive(int size=512)
+{
+    char buffer[size];
+    std::string reply;
+
+    //Receive a reply from the server
+    if(recv(_sock , buffer , sizeof(buffer) , 0) < 0) {
+        throw ConcordiaException("Receive failed");
+    }
+    reply = buffer;
+    return reply;
+}
+
+std::string SocketLemmatizer::lemmatizeSentence(std::string languageCode, std::string sentence) {
+    _send_data(languageCode+sentence+"@#@");
+    std::string reply = _receive(512);
+    return reply.substr(0,reply.find("@#@"));
+}

concordia-server/socket_lemmatizer.hpp

@@ -0,0 +1,35 @@
+#ifndef SOCKET_LEMMATIZER_HDR
+#define SOCKET_LEMMATIZER_HDR
+
+#include <string>
+#include<sys/socket.h>    //socket
+#include<arpa/inet.h> //inet_addr
+#include<netdb.h> //hostent
+
+#include <concordia/concordia_exception.hpp>
+
+
+class SocketLemmatizer {
+public:
+    /*! Constructor.
+    */
+    SocketLemmatizer() throw(ConcordiaException);
+    /*! Destructor.
+    */
+    virtual ~SocketLemmatizer();
+
+    std::string lemmatizeSentence(std::string languageCode, std::string sentence);
+private:
+    bool _connect(std::string, int);
+
+    bool _send_data(std::string data);
+
+    std::string _receive(int);
+
+    int _sock;
+
+    struct sockaddr_in _server;
+
+};
+
+#endif

tests/lemmatizeSentence.py

@@ -0,0 +1,29 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+import unittest
+import json
+import urllib2
+import sys
+import time
+import host
+
+data = {
+    'operation': 'lemmatize',
+    'languageCode':sys.argv[1],
+    'sentence':sys.argv[2]
+}
+
+address = 'http://'+host.concordia_host
+if len(host.concordia_port) > 0:
+    address += ':'+host.concordia_port
+
+start = time.time()
+req = urllib2.Request(address)
+req.add_header('Content-Type', 'application/json')
+response = json.loads(urllib2.urlopen(req, json.dumps(data)).read())
+end = time.time()
+
+print "Execution time: %.4f seconds." % (end-start)
+print "Result: "
+print response

upstart/README.txt

@@ -1,4 +1,4 @@
-In order to configure Concordia as upstart job, copy the 2 .conf files into your /etc/init and run:
+In order to configure Concordia as upstart job, copy the 3 .conf files into your /etc/init and run:
 
 sudo initctl reload-configuration
 

upstart/cmake_stubs/lemmagen.conf.in

@@ -0,0 +1,23 @@
+# lemmagen
+#
+# This service runs the LemmaGen lemmatizer
+# via mono. The process starts listening on the port 11000
+
+description LemmaGen
+
+# When to start the service
+start on started concordia-server
+
+# When to stop the service
+stop on runlevel [016]
+
+# Automatically restart process if crashed
+respawn
+
+# Essentially lets upstart know the process will detach itself to the background
+expect fork
+
+# Start the process
+script
+    exec mono @LEMMAGEN_BINARIES_PATH@/LemmaGenSockets.exe &
+end script