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Im getting "The method openFileDialog(null, null) is undefined for the type FileOpenService" error wen trying to run the code bellow.:
package com.hrtrust.ps.scanner;
// add javaws.jar to the classpath during compilation
import javax.jnlp.FileOpenService;
import javax.jnlp.FileSaveService;
import javax.jnlp.FileContents;
import javax.jnlp.ServiceManager;
import javax.jnlp.UnavailableServiceException;
import java.io.*;
import javax.jnlp.ExtendedService;
public class FileHandler {
static private FileOpenService fos = null;
static private FileSaveService fss = null;
static private FileContents fc = null;
static private ExtendedService exs = null;
// retrieves a reference to the JNLP services
private static synchronized void initialize() {
if (fss != null) { return; }
try { fos = (FileOpenService) ServiceManager.lookup("javax.jnlp.FileOpenService"); fss = (FileSaveService) ServiceManager.lookup("javax.jnlp.FileSaveService"); exs = (ExtendedService) ServiceManager.lookup("javax.jnlp.ExtendedService"); }
catch (UnavailableServiceException e) { fos = null; fss = null; exs = null; }
}
public static FileContents getDLL(File dllFile) {
initialize();
try { fc = exs.openFile(dllFile); }
catch (IOException ioe) { ioe.printStackTrace(System.out); return null; }
return fc;
}
// displays open file dialog and reads selected file using FileOpenService
public static String open() {
initialize();
try { fc = fos.openFileDialog(null, null); return readFromFile(fc); } catch (IOException ioe) { ioe.printStackTrace(System.out); return null; }
}
// displays saveFileDialog and saves file using FileSaveService
public static void save(String txt) {
initialize();
try {
// Show save dialog if no name is already given
if (fc == null) { fc = fss.saveFileDialog(null, null, new ByteArrayInputStream(txt.getBytes()), null); // file saved, done return; }
// use this only when filename is known
if (fc != null) { writeToFile(txt, fc); }
} catch (IOException ioe) { ioe.printStackTrace(System.out); }
}
// displays saveAsFileDialog and saves file using FileSaveService
public static void saveAs(String txt) {
initialize();
try {
if (fc == null) { // If not already saved. Save-as is like save save(txt); } else { fc = fss.saveAsFileDialog(null, null, fc); save(txt); }
} catch (IOException ioe) { ioe.printStackTrace(System.out); }
}
private static void writeToFile(String txt, FileContents fc) throws IOException {
int sizeNeeded = txt.length() * 2;
if (sizeNeeded > fc.getMaxLength()) { fc.setMaxLength(sizeNeeded); }
BufferedWriter os = new BufferedWriter(new OutputStreamWriter(fc.getOutputStream(true)));
os.write(txt);
os.close();
}
private static String readFromFile(FileContents fc) throws IOException {
if (fc == null) { return null; }
BufferedReader br = new BufferedReader(new InputStreamReader(fc.getInputStream()));
StringBuffer sb = new StringBuffer((int) fc.getLength());
String line = br.readLine();
while (line != null) { sb.append(line); sb.append("\n"); line = br.readLine(); }
br.close();
return sb.toString();
}
}
NB. fc = fos.openFileDialog(null, null); is the line that gives an error. (FileOpenService)....FileSaveService and FileContents works just fine.
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