コード例 #1
0
ファイル: PermissionTest.java プロジェクト: wangwg2/javalearn
 /**
  * Tries to insert words into the text area. Displays a dialog if the attempt fails.
  *
  * @param words the words to insert
  */
 public void insertWords(String words) {
   try {
     textArea.append(words + "\n");
   } catch (SecurityException ex) {
     JOptionPane.showMessageDialog(this, "I am sorry, but I cannot do that.");
     ex.printStackTrace();
   }
 }
コード例 #2
0
  /** Enqueues the Runnable object, and executes it on a processor thread. */
  public void dispatch(Runnable runner, boolean isLIFO) {
    isLIFO = false;
    synchronized (queue) {
      if (threadCount < maxThreadCount) {
        if (isLIFO) {
          queue.addFirst(runner);
        } else {
          queue.addLast(runner);
        }

        Thread processor =
            new Thread(this + " Processor") {

              public void run() {
                processEvents();
              }
            };
        threadCount++;

        // The processor thread must not be a daemon,
        // or else the Java VM might stop before
        // all runnables have been processed.
        try {
          processor.setDaemon(false);
        } catch (SecurityException e) {
          e.printStackTrace();
        }
        try {
          processor.setPriority(priority);
        } catch (SecurityException e) {
          e.printStackTrace();
        }

        processor.start();
        return;

      } else if (blockingPolicy == ENQUEUE_WHEN_BLOCKED) {
        if (isLIFO) {
          queue.addFirst(runner);
        } else {
          queue.addLast(runner);
        }

        return;
      }
    }

    // implicit: if (threadCount >= maxThreadCount && blockingPolicy == RUN_WHEN_BLOCKED)
    runner.run();
  }
コード例 #3
0
ファイル: MidiModel.java プロジェクト: jimomulloy/tonemap
 public boolean saveMidiFile(File file) {
   try {
     int[] fileTypes = MidiSystem.getMidiFileTypes(sequence);
     if (fileTypes.length == 0) {
       System.out.println("Can't save sequence");
       return false;
     } else {
       if (MidiSystem.write(sequence, fileTypes[0], file) == -1) {
         throw new IOException("Problems writing to file");
       }
       return true;
     }
   } catch (SecurityException ex) {
     ex.printStackTrace();
     return false;
   } catch (Exception ex) {
     ex.printStackTrace();
     return false;
   }
 }
コード例 #4
0
ファイル: MoveFileAction.java プロジェクト: kifetew/SWAT
  public void actionPerformed(ActionEvent event) {
    int selected = editor.getSelectedRow();
    if (selected == -1) return;
    FileListEntry flEntry = editor.getTableModel().getEntry(selected);
    // Check if the current file exists:
    String ln = flEntry.getLink();
    boolean httpLink = ln.toLowerCase().startsWith("http");
    if (httpLink) {
      // TODO: notify that this operation cannot be done on remote links

    }

    // Get an absolute path representation:
    String dir = frame.basePanel().metaData().getFileDirectory(GUIGlobals.FILE_FIELD);
    if ((dir == null) || (dir.trim().length() == 0) || !(new File(dir)).exists()) {
      JOptionPane.showMessageDialog(
          frame,
          Globals.lang("File_directory_is_not_set_or_does_not_exist!"),
          Globals.lang("Move/Rename file"),
          JOptionPane.ERROR_MESSAGE);
      return;
    }
    File file = new File(ln);
    if (!file.isAbsolute()) {
      file = Util.expandFilename(ln, new String[] {dir});
    }
    if ((file != null) && file.exists()) {
      // Ok, we found the file. Now get a new name:
      String extension = null;
      if (flEntry.getType() != null) extension = "." + flEntry.getType().getExtension();

      File newFile = null;
      boolean repeat = true;
      while (repeat) {
        repeat = false;
        String chosenFile;
        if (toFileDir) {
          String suggName = eEditor.getEntry().getCiteKey() + extension;
          CheckBoxMessage cbm =
              new CheckBoxMessage(
                  Globals.lang("Move file to file directory?"),
                  Globals.lang("Rename to '%0'", suggName),
                  Globals.prefs.getBoolean("renameOnMoveFileToFileDir"));
          int answer;
          // Only ask about renaming file if the file doesn't have the proper name already:
          if (!suggName.equals(file.getName()))
            answer =
                JOptionPane.showConfirmDialog(
                    frame, cbm, Globals.lang("Move/Rename file"), JOptionPane.YES_NO_OPTION);
          else
            answer =
                JOptionPane.showConfirmDialog(
                    frame,
                    Globals.lang("Move file to file directory?"),
                    Globals.lang("Move/Rename file"),
                    JOptionPane.YES_NO_OPTION);
          if (answer != JOptionPane.YES_OPTION) return;
          Globals.prefs.putBoolean("renameOnMoveFileToFileDir", cbm.isSelected());
          StringBuilder sb = new StringBuilder(dir);
          if (!dir.endsWith(File.separator)) sb.append(File.separator);
          if (cbm.isSelected()) {
            // Rename:
            sb.append(suggName);
          } else {
            // Do not rename:
            sb.append(file.getName());
          }
          chosenFile = sb.toString();
        } else {
          chosenFile =
              FileDialogs.getNewFile(frame, file, extension, JFileChooser.SAVE_DIALOG, false);
        }
        if (chosenFile == null) {
          return; // cancelled
        }
        newFile = new File(chosenFile);
        // Check if the file already exists:
        if (newFile.exists()
            && (JOptionPane.showConfirmDialog(
                    frame,
                    "'" + newFile.getName() + "' " + Globals.lang("exists. Overwrite file?"),
                    Globals.lang("Move/Rename file"),
                    JOptionPane.OK_CANCEL_OPTION)
                != JOptionPane.OK_OPTION)) {
          if (!toFileDir) repeat = true;
          else return;
        }
      }

      if (!newFile.equals(file)) {
        try {
          boolean success = file.renameTo(newFile);
          if (!success) {
            success = Util.copyFile(file, newFile, true);
          }
          if (success) {
            // Remove the original file:
            file.delete();
            // Relativise path, if possible.
            String canPath = (new File(dir)).getCanonicalPath();
            if (newFile.getCanonicalPath().startsWith(canPath)) {
              if ((newFile.getCanonicalPath().length() > canPath.length())
                  && (newFile.getCanonicalPath().charAt(canPath.length()) == File.separatorChar))
                flEntry.setLink(newFile.getCanonicalPath().substring(1 + canPath.length()));
              else flEntry.setLink(newFile.getCanonicalPath().substring(canPath.length()));

            } else flEntry.setLink(newFile.getCanonicalPath());
            eEditor.updateField(editor);
            JOptionPane.showMessageDialog(
                frame,
                Globals.lang("File moved"),
                Globals.lang("Move/Rename file"),
                JOptionPane.INFORMATION_MESSAGE);
          } else {
            JOptionPane.showMessageDialog(
                frame,
                Globals.lang("Move file failed"),
                Globals.lang("Move/Rename file"),
                JOptionPane.ERROR_MESSAGE);
          }

        } catch (SecurityException ex) {
          ex.printStackTrace();
          JOptionPane.showMessageDialog(
              frame,
              Globals.lang("Could not move file") + ": " + ex.getMessage(),
              Globals.lang("Move/Rename file"),
              JOptionPane.ERROR_MESSAGE);
        } catch (IOException ex) {
          ex.printStackTrace();
          JOptionPane.showMessageDialog(
              frame,
              Globals.lang("Could not move file") + ": " + ex.getMessage(),
              Globals.lang("Move/Rename file"),
              JOptionPane.ERROR_MESSAGE);
        }
      }
    } else {

      // File doesn't exist, so we can't move it.
      JOptionPane.showMessageDialog(
          frame,
          Globals.lang("Could not find file '%0'.", flEntry.getLink()),
          Globals.lang("File not found"),
          JOptionPane.ERROR_MESSAGE);
    }
  }