So far I have found that Swing UI thread should be used to send data to my JTextArea. I tried that and it didnt work.
Im assumming that Swing is too slow to process that output which id not being sent very fast at all. -----Original Message----- From: Gregory, Carlton [mailto:[EMAIL PROTECTED] Sent: Monday, January 12, 2004 1:47 PM To: '[EMAIL PROTECTED]' Subject: Swing Event Handler The class below RunCommand is Observable the class after that is my Observer. The Observer does not display the data until the below class finishes executing not before. Is there a bug with the event handler using Observable? Any other ideas? import java.io.*; import java.util.*; public class RunCommand extends Observable { static String drvltr = null; static String logon = null; static String action = null; private static String v = null; public RunCommand(String drive,String auth, String dbaction, Observer ob) { drvltr = drive; logon = auth +"@samsdb.gee as sysdba"; action = dbaction; addObserver(ob); } public void run() { String s; boolean finished = false; while (!finished) { try { if (action.equals("down")) { String[] cmd = {drvltr + ":\\oracle\\ora81\\bin\\sqlplus.exe", logon,"@C:\\temp\\downdb.sql"}; Process p = Runtime.getRuntime().exec(cmd); BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream())); BufferedReader stdError = new BufferedReader(new InputStreamReader(p.getErrorStream())); // read the output from the command System.out.println("Here is the standard output of the command:\n"); while ((s = stdInput.readLine()) != null) { setChanged(); notifyObservers(s); System.out.println(s); } // read any errors from the attempted command System.out.println("Here is the standard error of the command (if any):\n"); while ((s = stdError.readLine()) != null) { setChanged(); notifyObservers(s); System.out.println(s); } finished = true; } if (action.equals("up")) { String[] cmd = {drvltr + ":\\oracle\\ora81\\bin\\sqlplus.exe", logon,"@C:\\temp\\strtdb.sql"}; Process p = Runtime.getRuntime().exec(cmd); BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream())); BufferedReader stdError = new BufferedReader(new InputStreamReader(p.getErrorStream())); // read the output from the command System.out.println("Here is the standard output of the command:\n"); while ((s = stdInput.readLine()) != null) { setChanged(); notifyObservers(s); System.out.println(s); } // read any errors from the attempted command System.out.println("Here is the standard error of the command (if any):\n"); while ((s = stdError.readLine()) != null) { setChanged(); notifyObservers(s); System.out.println(s); } finished = true; // run shutdown command } // end if } //end try catch (IOException e) { System.out.println("exception happened - here's what I know: "); e.printStackTrace(); finished = true; } //end catch finished = true; } // end while } //end run } // end class The observer class is an inner class of a class that builds ther frame , panels, ect.,defined as: class JInstallerTextArea extends JTextArea implements Observer { public JInstallerTextArea() { setRows(5); setColumns(20); } public void update(Observable o, Object str) { append(str.toString()); append("\n"); } } _______________________________________________ Swing mailing list [EMAIL PROTECTED] http://eos.dk/mailman/listinfo/swing _______________________________________________ Swing mailing list [EMAIL PROTECTED] http://eos.dk/mailman/listinfo/swing
