Examples with HeadlessException java.awt.HeadlessException used on opensource projects

Example 6 with HeadlessException

use of java.awt.HeadlessException in project jmeter by apache.

the class JMeterUtils method reportErrorToUser.

/**
     * Report an error through a dialog box in GUI mode 
     * or in logs and stdout in Non GUI mode
     *
     * @param errorMsg - the error message.
     * @param titleMsg - title string
     * @param exception Exception
     */
public static void reportErrorToUser(String errorMsg, String titleMsg, Exception exception) {
    if (errorMsg == null) {
        errorMsg = "Unknown error - see log file";
        log.warn("Unknown error", new Throwable("errorMsg == null"));
    }
    GuiPackage instance = GuiPackage.getInstance();
    if (instance == null) {
        if (exception != null) {
            log.error(errorMsg, exception);
        } else {
            log.error(errorMsg);
        }
        // NOSONAR intentional
        System.out.println(errorMsg);
        // Done
        return;
    }
    try {
        JOptionPane.showMessageDialog(instance.getMainFrame(), errorMsg, titleMsg, JOptionPane.ERROR_MESSAGE);
    } catch (HeadlessException e) {
        log.warn("reportErrorToUser(\"" + errorMsg + "\") caused", e);
    }
}

Example 7 with HeadlessException

use of java.awt.HeadlessException in project JMRI by JMRI.

the class RosterEntry method writeFile.

/**
     * Write the contents of this RosterEntry to a file.
     * <p>
     * Information on the contents is passed through the parameters,
     * as the actual XML creation is done in the LocoFile class.
     *
     * @param cvModel       CV contents to include in file
     * @param iCvModel      indexed CV contents to include in file
     * @param variableModel Variable contents to include in file
     *
     */
public void writeFile(CvTableModel cvModel, IndexedCvTableModel iCvModel, VariableTableModel variableModel) {
    LocoFile df = new LocoFile();
    // do I/O
    FileUtil.createDirectory(LocoFile.getFileLocation());
    try {
        String fullFilename = LocoFile.getFileLocation() + getFileName();
        File f = new File(fullFilename);
        // do backup
        df.makeBackupFile(LocoFile.getFileLocation() + getFileName());
        // changed 
        changeDateUpdated();
        // and finally write the file
        df.writeFile(f, cvModel, iCvModel, variableModel, this);
    } catch (Exception e) {
        log.error("error during locomotive file output", e);
        try {
            JOptionPane.showMessageDialog(null, ResourceBundle.getBundle("jmri.jmrit.roster.JmritRosterBundle").getString("ErrorSavingText") + "\n" + e.getMessage(), ResourceBundle.getBundle("jmri.jmrit.roster.JmritRosterBundle").getString("ErrorSavingTitle"), JOptionPane.ERROR_MESSAGE);
        } catch (HeadlessException he) {
        // silently ignore inability to display dialog
        }
    }
}

Example 8 with HeadlessException

use of java.awt.HeadlessException in project JMRI by JMRI.

the class NameCheckAction method actionPerformed.

@SuppressWarnings("unchecked")
@Override
public void actionPerformed(ActionEvent e) {
    if (fci == null) {
        fci = jmri.jmrit.XmlFile.userFileChooser("XML files", "xml");
    }
    // request the filename from an open dialog
    fci.rescanCurrentDirectory();
    int retVal = fci.showOpenDialog(_who);
    // handle selection or cancel
    if (retVal == JFileChooser.APPROVE_OPTION) {
        File file = fci.getSelectedFile();
        if (log.isDebugEnabled()) {
            log.debug("located file " + file + " for XML processing");
        }
        // handle the file (later should be outside this thread?)
        try {
            Element root = readFile(file);
            if (log.isDebugEnabled()) {
                log.debug("parsing complete");
            }
            // check to see if there's a decoder element
            if (root.getChild("decoder") == null) {
                log.warn("Does not appear to be a decoder file");
                return;
            }
            Iterator<Element> iter = root.getChild("decoder").getChild("variables").getDescendants(new ElementFilter("variable"));
            jmri.jmrit.symbolicprog.NameFile nfile = jmri.jmrit.symbolicprog.NameFile.instance();
            String warnings = "";
            while (iter.hasNext()) {
                Element varElement = iter.next();
                // for each variable, see if can find in names file
                Attribute labelAttr = varElement.getAttribute("label");
                String label = null;
                if (labelAttr != null) {
                    label = labelAttr.getValue();
                }
                Attribute itemAttr = varElement.getAttribute("item");
                String item = null;
                if (itemAttr != null) {
                    item = itemAttr.getValue();
                }
                if (log.isDebugEnabled()) {
                    log.debug("Variable called \"" + ((label != null) ? label : "<none>") + "\" \"" + ((item != null) ? item : "<none>"));
                }
                if (!(label == null ? false : nfile.checkName(label)) && !(item == null ? false : nfile.checkName(item))) {
                    log.warn("Variable not found: label=\"" + ((label != null) ? label : "<none>") + "\" item=\"" + ((item != null) ? label : "<none>") + "\"");
                    warnings += "Variable not found: label=\"" + ((label != null) ? label : "<none>") + "\" item=\"" + ((item != null) ? item : "<none>") + "\"\n";
                }
            }
            if (!warnings.equals("")) {
                JOptionPane.showMessageDialog(_who, warnings);
            } else {
                JOptionPane.showMessageDialog(_who, "No mismatched items found");
            }
        } catch (HeadlessException | IOException | JDOMException ex) {
            JOptionPane.showMessageDialog(_who, "Error parsing decoder file: " + ex);
        }
    } else {
        log.debug("XmlFileCheckAction cancelled in open dialog");
    }
}

Example 9 with HeadlessException

use of java.awt.HeadlessException in project JMRI by JMRI.

the class EcosLocoAddressManager method checkLocoList.

/* This is used after an event update form the ecos informing us of a change in the 
     * loco list, we have to determine if it is an addition or delete.
     * We should only ever do either a remove or an add in one go, if we are adding the loco
     * to the roster otherwise this causes a problem with the roster list.
     */
void checkLocoList(String[] ecoslines) {
    log.info("Checking loco list");
    String loco;
    for (int i = 0; i < ecoslines.length; i++) {
        loco = ecoslines[i];
        loco = loco.replaceAll("[\\n\\r]", "");
        if (getByEcosObject(loco) == null) {
            log.debug("We are to add loco " + loco + " to the Ecos Loco List");
            EcosMessage mout = new EcosMessage("get(" + loco + ", addr, name, protocol)");
            tc.sendEcosMessage(mout, this);
        }
    }
    String[] jmrilist = getEcosObjectArray();
    boolean nomatch = true;
    for (int i = 0; i < jmrilist.length; i++) {
        nomatch = true;
        for (int k = 0; k < ecoslines.length; k++) {
            loco = ecoslines[k];
            loco = loco.replaceAll("[\\n\\r]", "");
            if (loco.equals(jmrilist[i])) {
                nomatch = false;
                break;
            }
        }
        if (nomatch) {
            //System.out.println("We do not have a match, therefore this should be deleted from the Ecos loco Manager " + jmrilist[i]);
            log.debug("Loco not found so need to remove from register");
            if (getByEcosObject(jmrilist[i]).getRosterId() != null) {
                final String rosterid = getByEcosObject(jmrilist[i]).getRosterId();
                final Roster _roster = Roster.getDefault();
                final RosterEntry re = _roster.entryFromTitle(rosterid);
                re.deleteAttribute(p.getRosterAttribute());
                re.writeFile(null, null, null);
                Roster.getDefault().writeRoster();
                if (p.getRemoveLocoFromJMRI() == EcosPreferences.YES) {
                    _roster.removeEntry(re);
                    Roster.getDefault().writeRoster();
                } else if (p.getRemoveLocoFromJMRI() == EcosPreferences.ASK) {
                    try {
                        final JDialog dialog = new JDialog();
                        dialog.setTitle("Remove Roster Entry From JMRI?");
                        dialog.setLocation(300, 200);
                        dialog.setDefaultCloseOperation(javax.swing.JFrame.DISPOSE_ON_CLOSE);
                        JPanel container = new JPanel();
                        container.setLayout(new BoxLayout(container, BoxLayout.Y_AXIS));
                        container.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
                        JLabel question = new JLabel(rosterid + " has been removed from the Ecos do you want to remove it from JMRI?");
                        question.setAlignmentX(Component.CENTER_ALIGNMENT);
                        container.add(question);
                        final JCheckBox remember = new JCheckBox("Remember this setting for next time?");
                        remember.setFont(remember.getFont().deriveFont(10f));
                        remember.setAlignmentX(Component.CENTER_ALIGNMENT);
                        //user preferences do not have the save option, but once complete the following line can be removed
                        //Need to get the method to save connection configuration.
                        remember.setVisible(true);
                        JButton yesButton = new JButton("Yes");
                        JButton noButton = new JButton("No");
                        JPanel button = new JPanel();
                        button.setAlignmentX(Component.CENTER_ALIGNMENT);
                        button.add(yesButton);
                        button.add(noButton);
                        container.add(button);
                        noButton.addActionListener(new ActionListener() {

                            @Override
                            public void actionPerformed(ActionEvent e) {
                                if (remember.isSelected()) {
                                    p.setRemoveLocoFromJMRI(EcosPreferences.ASK);
                                }
                                dialog.dispose();
                            }
                        });
                        yesButton.addActionListener(new ActionListener() {

                            @Override
                            public void actionPerformed(ActionEvent e) {
                                if (remember.isSelected()) {
                                    p.setRemoveLocoFromJMRI(EcosPreferences.YES);
                                }
                                setLocoToRoster();
                                _roster.removeEntry(re);
                                Roster.getDefault().writeRoster();
                                dialog.dispose();
                            }
                        });
                        container.add(remember);
                        container.setAlignmentX(Component.CENTER_ALIGNMENT);
                        container.setAlignmentY(Component.CENTER_ALIGNMENT);
                        dialog.getContentPane().add(container);
                        dialog.pack();
                        dialog.setModal(true);
                        dialog.setVisible(true);
                    } catch (HeadlessException he) {
                    // silently ignore inability to display dialog
                    }
                }
            }
            //Even if we do not delete the loco from the roster, we need to remove it from the ecos list.
            deregister(getByEcosObject(jmrilist[i]));
        }
    }
}

Example 10 with HeadlessException

use of java.awt.HeadlessException in project jdk8u_jdk by JetBrains.

the class Desktop method getDesktop.

/**
     * Returns the <code>Desktop</code> instance of the current
     * browser context.  On some platforms the Desktop API may not be
     * supported; use the {@link #isDesktopSupported} method to
     * determine if the current desktop is supported.
     * @return the Desktop instance of the current browser context
     * @throws HeadlessException if {@link
     * GraphicsEnvironment#isHeadless()} returns {@code true}
     * @throws UnsupportedOperationException if this class is not
     * supported on the current platform
     * @see #isDesktopSupported()
     * @see java.awt.GraphicsEnvironment#isHeadless
     */
public static synchronized Desktop getDesktop() {
    if (GraphicsEnvironment.isHeadless())
        throw new HeadlessException();
    if (!Desktop.isDesktopSupported()) {
        throw new UnsupportedOperationException("Desktop API is not " + "supported on the current platform");
    }
    sun.awt.AppContext context = sun.awt.AppContext.getAppContext();
    Desktop desktop = (Desktop) context.get(Desktop.class);
    if (desktop == null) {
        desktop = new Desktop();
        context.put(Desktop.class, desktop);
    }
    return desktop;
}