Servlet : upload and converter a ppt to pdf

[amine berrabah]

Hellow,
To upload and convert a ppt to pdf i use this servlet

package servlet; 

import java.io.File; 
import java.io.IOException; 
import java.net.ConnectException; 
import java.util.Hashtable; 
import java.util.Iterator; 
import java.util.List; 

import javax.naming.Context; 
import javax.naming.InitialContext; 
import javax.naming.NamingException; 
import javax.servlet.ServletException; 
import javax.servlet.http.HttpServlet; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 

import org.apache.commons.fileupload.DiskFileUpload; 
import org.apache.commons.fileupload.FileItem; 
import org.apache.commons.fileupload.FileUpload; 
import org.apache.commons.fileupload.FileUploadException; 
import org.springframework.scripting.support.RefreshableScriptTargetSource; 

import session.BeanSessionFichierRemote; 

import com.artofsolving.jodconverter.DocumentConverter; 
import com.artofsolving.jodconverter.openoffice.connection.OpenOfficeConnection; 
import com.artofsolving.jodconverter.openoffice.connection.SocketOpenOfficeConnection; 
import com.artofsolving.jodconverter.openoffice.converter.OpenOfficeDocumentConverter; 

import entity.Fichier; 
import entity.User; 

/** 
* Servlet implementation class ajout 
*/ 
public class ajout extends HttpServlet { 
private static final long serialVersionUID = 1L; 

/** 
* @see HttpServlet#HttpServlet() 
*/ 
public ajout() { 
super(); 

} 

/** 
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse 
* response) 
*/ 
protected void doGet(HttpServletRequest request, 
HttpServletResponse response) throws ServletException, IOException { 

doPost(request, response); 
} 

/** 
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse 
* response) 
*/ 
protected void doPost(HttpServletRequest request, 
HttpServletResponse response) throws ServletException, IOException { 

String nom = null, login = null ,chemin=null; 

// upload image 
boolean isMultipart = FileUpload.isMultipartContent(request); 
if (!isMultipart) { 
request.setAttribute("msg", "Request was not multipart!"); 
request.getRequestDispatcher("msg.jsp").forward(request, response); 
return; 
} 

DiskFileUpload upload = new DiskFileUpload(); 
List items = null; 
try { 
items = upload.parseRequest(request); 
} catch (FileUploadException e) { 
// TODO Auto-generated catch block 
e.printStackTrace(); 
} 
Iterator itr = items.iterator(); 

while (itr.hasNext()) { 
FileItem item = (FileItem) itr.next(); 
if (item.isFormField()) { 
String fieldName = item.getFieldName(); 
if (fieldName.equals("nom")) 
nom = item.getString(); 

if (fieldName.equals("login")) 
login = item.getString(); 

} 

else { 

File fullFile = new File(item.getName()); 
String ch=System.getenv("user.home"+"/projet_pad/MyProj/Library/"); 
File savedFile = new File("C:\\Users\\Administrateur\\projet_pad\\webs\\WebContent\\PptFile", fullFile.getName()); 
chemin = fullFile.getName(); 
try { 
item.write(savedFile); 
} catch (Exception e) { 
// TODO Auto-generated catch block 
e.printStackTrace(); 
} 
} 
} 
/*****************************************************************************************************************/ 

/*****************************************************************************************************************/ 
//**********************Ajout dans la base de donnée*************************************************************// 
Hashtable<String, String> h = new Hashtable<String, String>(); 
h.put("java.naming.factory.initial", 
"org.objectweb.carol.jndi.spi.MultiOrbInitialContextFactory"); 
h.put("java.naming.provider.url", "rmi://localhost:1099"); 
h.put("java.naming.factory.url.pkgs", "org.objectweb.jonas.naming"); 
Context ctx; 
try { 
ctx = new InitialContext(h); 
String JNDI_NAME = "session.BeanSessionFichier" + "_" 
+ BeanSessionFichierRemote.class.getName() + "@Remote"; 
BeanSessionFichierRemote ref = (BeanSessionFichierRemote) ctx 
.lookup(JNDI_NAME); 

System.out.println(login+chemin+nom); 
User u=new User(); 
u.setLogin(login); 

Fichier f=new Fichier(); 
f.setChemin(chemin); 
f.setNom(nom); 
f.setUser(u); 

ref.AddFichier(f); 
response.sendRedirect("/webs/GetFichierUser?login="+login+""); 


} catch (NamingException e) { 
System.out.println(e.getMessage()); 
e.printStackTrace(); 
} 
//******************************************************************************************************// 

System.out.println("le nom de slide est :" + chemin); 
// String newm = nom.substring(nom.lastIndexOf(".")); 

String newname = chemin.substring(0, chemin.length() - 4); 

// String nom = "cours"; 

System.out.println("le nouveau nom apré l'exctarction est :" + newname); 

// partie convetion au pdf 


File inputFile = new File("C:\\Users\\Administrateur\\projet_pad\\webs\\WebContent\\PptFile\\"+newname+".ppt"); 
System.out.println("Jointure de ppt en cours ..."); 

File outputFile = new File("C:\\Users\\Administrateur\\projet_pad\\webs\\WebContent\\PdfFile\\"+newname+".pdf"); 
System.out.println("Creation de pdf en cours ..."); 

// connect to an OpenOffice.org instance running on port 8100 
OpenOfficeConnection connection = new SocketOpenOfficeConnection(8100); 
System.out.println("Connexion avec OOo (localhost:8100) en cours ..."); 

try { 
connection.connect(); // 170 
System.out.println("Connexion éffectuée ... "); 
} catch (ConnectException e) { 
// TODO Auto-generated catch block 
System.out.println(e.getMessage()); 
e.printStackTrace(); 
} catch (InterruptedException e) { 
// TODO Auto-generated catch block 
System.out.println(e.getMessage()); 
e.printStackTrace(); 
} 

// convert 
DocumentConverter converter = new OpenOfficeDocumentConverter(connection); 
converter.convert(inputFile, outputFile); 
System.out.println("Convertion en cours ..."); 

// close the connection 
connection.disconnect(); 
System.out.println("Deconnexion en cours ..."); 



} 

} 

i got this errors :

com.artofsolving.jodconverter.openoffice.connection.OpenOfficeException: connection failed: socket,host=localhost,port=8100,tcpNoDelay=1
com.artofsolving.jodconverter.openoffice.connection.AbstractOpenOfficeConnection.connect(AbstractOpenOfficeConnection.java:81)
servlet.ajout.doPost(ajout.java:170)
javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

i run the OOe on localhost and 8100,
i have add the jobconverter jars to the buikdpath
i dont know what is the matter !!!

[Deepak Bala]

What process runs and binds to port 8100 ? That seems to be missing. On a side note...

1. The servlet is a controller. It is doing more than what it should in your use case. A business object POJO is more suited to do the heavy lifting.
2. Class names must be in CamelCase.
3. A package named servlet does not sufficiently describe the intent of the classes under it.
4. Avoid using absolute paths / OS specific paths like (c:\)
5. After logging an exception with e.printStackTrace();, what does the user get to see on the browser ? Think about that.
6. I have many more but I am afraid they may side track your original question.

[amine berrabah]

Deepak Bala wrote:What process runs and binds to port 8100 ? That seems to be missing. On a side note...

1. The servlet is a controller. It is doing more than what it should in your use case. A business object POJO is more suited to do the heavy lifting.
2. Class names must be in CamelCase.
3. A package named servlet does not sufficiently describe the intent of the classes under it.
4. Avoid using absolute paths / OS specific paths like (c:\)
5. After logging an exception with e.printStackTrace();, what does the user get to see on the browser ? Think about that.
6. I have many more but I am afraid they may side track your original question.

hi,
i have run the open office service on localhost and 8100 by this bat :

@echo off


rem Init start parameters
set OOO_APP="C:\Program Files (x86)\OpenOffice.org 3\program\soffice.exe"
set OOO_PARAM=-headless -norestore
set OOO_SOCKET="-accept=socket,host=localhost,port=8100,tcpNoDelay=1;urp;StarOffice.ServiceManager"- nofirststartwizard

rem Start OpenOffice.org
echo start "OpenOffice.org" %OOO_APP% %OOO_PARAM% %OOO_SOCKET% >>oo.log
start "OpenOffice.org" %OOO_APP% %OOO_PARAM% %OOO_SOCKET%

and i have used this class java to converte and it's work

package finale;

import java.io.File;
import java.net.ConnectException;

import com.artofsolving.jodconverter.DocumentConverter;
import com.artofsolving.jodconverter.openoffice.connection.*;
import com.artofsolving.jodconverter.openoffice.converter.OpenOfficeDocumentConverter;

public class PptConvert{

public static void main(String[] args) {

String newname = "ra";


File inputFile = new File("C:\\file-ppt\\"+newname+".ppt");
System.out.println("Jointure de ppt en cours ...");

File outputFile = new File("C:\\file-essai\\"+newname+".pdf");
System.out.println("Creation de pdf en cours ...");

OpenOfficeConnection connection = new SocketOpenOfficeConnection(8100);
System.out.println("Connexion avec OOo (localhost:8100) en cours ...");

try {
connection.connect();
System.out.println("Connexion éffectuée ... ");
} catch (ConnectException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}


DocumentConverter converter = new OpenOfficeDocumentConverter(connection);
converter.convert(inputFile, outputFile);
System.out.println("Convertion en cours ...");


connection.disconnect();
System.out.println("Deconnexion en cours ...");
}
}

so i dont see the exactely the error for the connection !

[Deepak Bala]

There is no valid explanation why the call would not work from a servlet. May be the open office server was simply down ?