🚀 go-pugleaf

I have a swing application that I want to periodically poll a folder,
determine if files have been saved to the folder, open the files, apply
specific formatting, and save files as new files.

I have read information about both the Swing Timer object and the
java.util.Timer and have chosen the java.util.Timer because I don't need
this polling process to interact with the UI.

Problem:  The Timer object fires on a periodic basis, calling an object that
extends TimerTask - this works fine.  The run method of the object that
extends TimerTask reads a text file that contains a list of files to poll
for, and loops through the list to determine if the files are present in the
designated folder.  If a file is present, logic formats the file, and uses a
FileOutputStream to save the file.  The problem is  after looping through
and formatting a list of ten files (3kb each), the only file that is
actually saved is the last file in the list.  I have event tried adding the
FileOutputStream.flush() method to hopefully force file save - this didn't
work.  When I step through the code in the debugger, all ten files are
saved.  What am I doing wrong?

***Here's the controlling code...  placed in the JBuilder application object

/**
   * timerInit
   * Parameters : None
   * Returns    : None
   */
  private void timerInit(Integer time) {
    Timer t =           new Timer(true);
    int delay = 30000;
    t.schedule(new Test(), delay, delay);
    try {
      Thread.currentThread().sleep(12000);
    } catch (java.lang.InterruptedException e) {}
  }


***Here's the remaining code...

public class Test extends TimerTask {
  private StringBuffer file;

  public Test() {}

  public void run() {
    String path;
    Vector vectFiles =  new Vector();
    Properties prop =   new Properties();
    try{
      // Get properties file
      prop.load(new FileInputStream("bbpositions"));
      // Get a list of files
      vectFiles = getFiles();
      // Loop thru all elements in vector
      for(int i = 0; i<vectFiles.size(); i++) {
        String row[] = (String[])vectFiles.elementAt(i);
        path = prop.getProperty("SSBPath") + "\\" + row[6];
        // Test each file to determine if in directory
        if(new File(path).exists()) {
          // Call createFile
          createFile(row);
        }
      }
    } catch (Exception e) {
      cancel();
    }
  }
  /**
   * getFiles
   * Parameters : None
   * Returns:
   *   vectFiles  :  Vector containing list of files to upload.
   */
  public Vector getFiles() {
    Vector vectFiles = new Vector();
    try {
      BufferedReader in = new BufferedReader(
        new FileReader(".\\bbpositions_portfolios.txt"));
      int rowNbr = 0;
      String temp;
      while((temp = in.readLine()) != null) {
        StringTokenizer tok = new StringTokenizer(temp, "\",", false);
        String row[] =  new String[8];
        row[0] =        tok.nextToken();  // id
        row[1] =        tok.nextToken();  // portfolio id
        row[2] =        tok.nextToken();  // action
        row[3] =        tok.nextToken();  // portfolio name
        row[4] =        tok.nextToken();  // currency
        row[5] =        tok.nextToken();  // filing date
        row[6] =        tok.nextToken();  // file name
        vectFiles.addElement(row);
      }
      in.close();
    } catch (FileNotFoundException e1) {
    } catch (IOException e2) {
    }
    return vectFiles;
  }
  /**
   * createFile
   * Parameters:  None
   * Returns: None
   */
  public synchronized void createFile(String[] row) {
    Properties prop =           new Properties();
    try{
      prop.load(new FileInputStream("bbpositions"));
      file = new StringBuffer();
      file.append("SYSTEM=" + prop.getProperty("System") + "\r\n");
      file.append("USERNUMBER=" + prop.getProperty("UserNumber") + "\r\n");
      file.append("LOGIN=" + prop.getProperty("Login") + "\r\n");
      file.append("CLIENT_ID=" + prop.getProperty("ClientID") + "\r\n");
      file.append("PORTFOLIO_ID=" + row[1] + "\r\n");
      file.append("ACTION=" + row[2] + "\r\n");
      file.append("PORTFOLIO_NAME=" + row[3] + "\r\n");
      file.append("PORTFOLIO_CURRENCY=" + row[4] + "\r\n");
      file.append("FILING_DATE=" + row[5] + "\r\n");
      file.append("DELIMITER=" + prop.getProperty("Delimiter") + "\r\n");
      file.append("FIELDS=" + "ID_TYPE ID DUM SIZE COST\r\n");
      file.append("START_OF_DATA\r\n");

      // procedure for rows here

      file.append("END_OF_DATA\r\n");
      file.append("END_OF_FILE\r\n");
      writeFile(file.toString());
    } catch (java.io.FileNotFoundException ex1) {
    } catch (java.io.IOException ex2) {
    }
  }
  /**
   * writeFile
   * Parameters:
   *   file    :  Name to use for file
   * Returns: None
   */
  private void writeFile(String file) {
    String name = ".\\P" + getDate() + ".csv";
    if(!file.equals(null) && !file.equals("")) {
      try {
        FileOutputStream fs = new FileOutputStream(name);
        fs.write(file.getBytes());
        fs.flush();
        fs.close();
        (new File(name)).deleteOnExit();
      } catch (IOException e) {}
    }
  }
  /**
   * getDate
   * Paramters : None
   * Returns   : java.util.Date
   */
  private String getDate() {
    SimpleDateFormat dateFmt =  new SimpleDateFormat("yyyyMMdd'_'hhmmss");
    java.util.Calendar cldr =  Calendar.getInstance();
    return dateFmt.format(cldr.getTime());
  }
}