i have an Issue with deleting and renaming more than one files in a directory using servlet.While running the below code sometimes some files are deleating some others are not.following is the servlet code iam using.
public class SendRedirect extends HttpServlet {
RootSipResourceApp app =new RootSipResourceApp();
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html; charset=UTF-8"); if (strSaveFile != null)
app.updateRootFile(strDirectorypath, strappID, appNames);
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/index.jsp");
dispatcher.forward(request, response);
}
}
RootSipResource.java file
public void updateRootFile(String directorypath, String appID, String[] appName) throws IOException {
FileInputStream fins=null;
try {
File[] listOfFiles = fileLists(directorypath);
for (int i = 0; i < listOfFiles.length; i++) {
synchronized(listOfFiles) {
if (listOfFiles[i].isFile()) {
rootFiles = listOfFiles[i].getName();
if (rootFiles.endsWith(".properties") || rootFiles.endsWith(".PROPERTIES")) {
fins = new FileInputStream(directorypath + rootFiles);
properties.load(new InputStreamReader(fins, Charset.forName("UTF-8")));
String getAppName = properties.getProperty("root.label." + appID);
String propertyStr = "root.label." + appID;
String toUtf =new String(appName[i].getBytes("iso-8859-1"), "UTF-8") ;
saveFile(fins, getAppName, directorypath + rootFiles, propertyStr,toUtf);
}
}
}
}
} catch (Exception e) {
System.out.println("Exception Inside updateRootFile():: " + e);
}
}
public void saveFile(FileInputStream fIns, String oldAppName, String filePath, String propertyStr, String appName)
throws IOException {
FileInputStream finStream =null;
try {
String oldChar = propertyStr + "=" + oldAppName;
String newChar = propertyStr + "=" + appName;
String strLine;
File rootFile = new File(filePath);
File copyFile = new File("D:\\root\\root_created.properties");
finStream = new FileInputStream(rootFile);
BufferedReader br = new BufferedReader(new InputStreamReader(finStream, "UTF-8"));
OutputStreamWriter outStream = new OutputStreamWriter(new FileOutputStream(copyFile), "UTF-8");
while ((strLine = br.readLine()) != null) {
strLine = strLine.replace(oldChar, newChar);
outStream.write(strLine);
outStream.write("\r\n");
}
outStream.flush();
outStream.close();
br.close();
fIns.close();
finStream.close();
rootFile.delete();
copyFile.renameTo(rootFile);
} catch (IOException e) {
System.out.println(" Excpetion in save file--*******************---" + e);
}
}
I used synchorinized keyword inside updateRootFile() method..But still it is not working..
