unable to delete file?

From: <glassfish_at_javadesktop.org>
Date: Tue, 01 Jul 2008 17:43:07 PDT

i have a servlet that is getting a file via multipart/form-data and using com.oreilly.servlet.MultipartRequest to process. I get the file from the MultipartRequest copy it to another directory and then I want to delete the temp directory. NO GO. here is my code any help? (I have tried uploadedFile.delete(), I have tried new File(absfilepath).delete) 
 
I am not getting an error but File.delete returns false.
 
package com.zykis.www.Servlet;
 
import com.oreilly.servlet.MultipartRequest; 
import java.awt.Image; 
import java.io.*; 
import java.net.*; 
 
import java.util.Enumeration; 
import java.util.Properties; 
import javax.servlet.*; 
import javax.servlet.http.*; 
import javax.swing.ImageIcon; 
 
 
public class UploadServlet extends HttpServlet { 
 
 private String tempPath; 
 private final int defaultMax = 20; 
 
 public void init( ) { 
 tempPath = getServletContext( ).getRealPath("/") + "temp"; 
 } 

 protected void processRequest(HttpServletRequest request, HttpServletResponse response) 
 throws ServletException, IOException { 
 
 try{ 
 MultipartRequest mpr = new MultipartRequest(
 request,tempPath,defaultMax * 1024 * 1024); 
 Enumeration fileEnum = mpr.getFileNames(); 
 String fileIndex = (String) fileEnum.nextElement(); 
 File uploadedFile = mpr.getFile(fileIndex); 
 
 response.setContentType("text/html"); 
 java.io.PrintWriter out = response.getWriter( ); 
 out.println("<html>"); 
 out.println("<head>"); 
 out.println("<title>Servlet upload</title>"); 
 out.println("</head>"); 
 out.println("<body>"); 
 
 String dealerID = ""; 
 String templateID = ""; 
 String imageID = ""; 
 boolean validRequest = true; 
 
 if(mpr.getParameter("dealerID").compareToIgnoreCase("") != 0) 
 { dealerID = mpr.getParameter("dealerID"); } 
 else{ validRequest = false; } 
 
 if(validRequest && mpr.getParameter("templateID").compareToIgnoreCase("") != 0) 
 { templateID = mpr.getParameter("templateID"); } 
 else{ validRequest = false; } 
 
 if(validRequest && mpr.getParameter("imageID").compareToIgnoreCase("") != 0)
 { imageID = mpr.getParameter("imageID"); } 
 else{ validRequest = false; } 
 
 if(uploadedFile == null) 
 { validRequest = false; } 
 
 if(validRequest) 
 { 
 // create and load properties 
 Properties props = new Properties(); 
 String fpath = request.getRealPath( "dealer" + dealerID +
 "/template" + templateID + "/upload.properties"); 
 FileInputStream in = new FileInputStream(fpath); 
 props.load(in); 
 in.close(); 
 
 boolean validFile = true; 
 String fileName = uploadedFile.getAbsolutePath(); 
 long fileSize = uploadedFile.length(); 
 String maxSize = props.getProperty("maxFileSize"); 
 String validWidthString = props.getProperty("img" + imageID + "_w"); 
 String validHeightString = props.getProperty("img" + imageID + "_h"); 
 
 int dot = fileName.indexOf("."); 
 String fileExt = fileName.substring(dot+1); 
 
 //check file size 
 if(fileSize > Long.valueOf(maxSize)) 
 { out.print("file is too big, max file size is " + maxSize); 
 validFile = false; 
 } 
 //check file type 
 if(validFile && props.getProperty(fileExt) == null) 
 { out.print(fileExt + " is an invalid file extension"); 
 validFile = false; 
 } 
 //check width and height 
 Image img = new ImageIcon(fileName).getImage(); 
 int imgWidth = img.getWidth(null); 
 int imgHeight = img.getHeight(null); 
 
 if(Integer.valueOf(validWidthString) == 0) 
 { //DO NOTHING there is no restriction. 
 } 
 else if(imgWidth != Integer.valueOf(validWidthString)) 
 { out.print(" width must equal " + validWidthString); 
 validFile = false; 
 } 
 
 if(Integer.valueOf(validHeightString) == 0) 
 { //DO NOTHING there is no restriction. 
 } 
 if(imgHeight != Integer.valueOf(validHeightString)) 
 { out.print(" height must equal " + validHeightString); 
 validFile = false; 
 } 
 
 if(!validFile) 
 { uploadedFile.delete(); } 
 else 
 { 
 String newPath = getServletContext( ).getRealPath("dealer" 
 + dealerID + "/template" + templateID 
 + "/image" + imageID + "/" + uploadedFile.getName()); 
 
 File renamedFile = new File(newPath); 
 copyFile(uploadedFile, renamedFile); 
 } 
 //if not for specific template then add to dealers gallery 
 }else if(dealerID != null){ 
 
 String fileName = uploadedFile.getAbsolutePath(); 
 
 Image img = new ImageIcon(fileName).getImage(); 
 int imgWidth = img.getWidth(null); 
 int imgHeight = img.getHeight(null); 
 
 File imgDir = new File(getServletContext().getRealPath("dealer" 
 + dealerID +"/Gallery/" + imgWidth + "x" + imgHeight)); 
 
 if(!imgDir.exists()) 
 { imgDir.mkdirs(); } 
 
 File newFile = new File(imgDir, uploadedFile.getName()); 
 copyFile(uploadedFile, newFile); 
 
 out.println(newFile.getAbsolutePath()); 
 out.println("file uploaded : " + uploadedFile.getAbsolutePath()); 
 }else{ 
 out.println("invalid request"); 
 } 
 
 mpr.getFile(fileIndex).delete(); 
 
 out.println("</body>"); 
 out.println("</html>"); 
 
 }catch(Exception e) 
 { java.io.PrintWriter out = response.getWriter( ); 
 out.println("<html>"); 
 out.println("<head>"); 
 out.println("<title>Servlet upload</title>"); 
 out.println("</head>"); 
 out.println("<body>"); 
 out.print("Sorry there seems to be a problem with your upload " + e.getMessage()); 
 out.println("</body>"); 
 out.println("</html>"); 
 } 
 } 
 
 private void copyFile(File oldFile, File newFile)throws Exception { 
 FileInputStream fis = new FileInputStream(oldFile); 
 FileOutputStream fos = new FileOutputStream(newFile); 
 byte[] buf = new byte[1024]; 
 int i = 0; 
 while((i=fis.read(buf))!=-1) { 
 fos.write(buf, 0, i); 
 } 
 fis.close(); 
 fos.close(); 
 } 
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