Examples with ChangeScanner org.jabref.collab.ChangeScanner used on opensource projects

Example 1 with ChangeScanner

use of org.jabref.collab.ChangeScanner in project jabref by JabRef.

the class BasePanel method fileUpdated.

@Override
public void fileUpdated() {
    if (saving) {
        // If not, we'll handle it on the next polling.
        return;
    }
    updatedExternally = true;
    final ChangeScanner scanner = new ChangeScanner(frame, BasePanel.this, getBibDatabaseContext().getDatabaseFile().orElse(null));
    // Test: running scan automatically in background
    if ((getBibDatabaseContext().getDatabaseFile().isPresent()) && !FileBasedLock.waitForFileLock(getBibDatabaseContext().getDatabaseFile().get().toPath())) {
        // The file is locked even after the maximum wait. Do nothing.
        LOGGER.error("File updated externally, but change scan failed because the file is locked.");
        // Perturb the stored timestamp so successive checks are made:
        Globals.getFileUpdateMonitor().perturbTimestamp(getFileMonitorHandle());
        return;
    }
    JabRefExecutorService.INSTANCE.executeInterruptableTaskAndWait(scanner);
    // Adding the sidepane component is Swing work, so we must do this in the Swing
    // thread:
    Runnable t = () -> {
        // Check if there is already a notification about external
        // changes:
        boolean hasAlready = sidePaneManager.hasComponent(FileUpdatePanel.class);
        if (hasAlready) {
            sidePaneManager.hideComponent(FileUpdatePanel.class);
            sidePaneManager.unregisterComponent(FileUpdatePanel.class);
        }
        FileUpdatePanel pan = new FileUpdatePanel(BasePanel.this, sidePaneManager, getBibDatabaseContext().getDatabaseFile().orElse(null), scanner);
        sidePaneManager.register(pan);
        sidePaneManager.show(FileUpdatePanel.class);
    };
    if (scanner.changesFound()) {
        SwingUtilities.invokeLater(t);
    } else {
        setUpdatedExternally(false);
    }
}

Example 2 with ChangeScanner

use of org.jabref.collab.ChangeScanner in project jabref by JabRef.

the class SaveDatabaseAction method checkExternalModification.

/**
     * Check whether or not the external database has been modified. If so need to alert the user to accept external updates prior to
     * saving the database. This is necessary to avoid overwriting other users work when using a multiuser database file.
     *
     * @return true if the external database file has been modified and the user must choose to accept the changes and false if no modifications
     * were found or there is no requested protection for the database file.
     */
private boolean checkExternalModification() {
    // Check for external modifications:
    if (panel.isUpdatedExternally() || Globals.getFileUpdateMonitor().hasBeenModified(panel.getFileMonitorHandle())) {
        String[] opts = new String[] { Localization.lang("Review changes"), Localization.lang("Save"), Localization.lang("Cancel") };
        int answer = JOptionPane.showOptionDialog(panel.frame(), Localization.lang("File has been updated externally. " + "What do you want to do?"), Localization.lang("File updated externally"), JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE, null, opts, opts[0]);
        if (answer == JOptionPane.CANCEL_OPTION) {
            canceled = true;
            return true;
        } else if (answer == JOptionPane.YES_OPTION) {
            canceled = true;
            JabRefExecutorService.INSTANCE.execute(() -> {
                if (!FileBasedLock.waitForFileLock(panel.getBibDatabaseContext().getDatabaseFile().get().toPath())) {
                    // TODO: GUI handling of the situation when the externally modified file keeps being locked.
                    LOGGER.error("File locked, this will be trouble.");
                }
                ChangeScanner scanner = new ChangeScanner(panel.frame(), panel, panel.getBibDatabaseContext().getDatabaseFile().get());
                JabRefExecutorService.INSTANCE.executeInterruptableTaskAndWait(scanner);
                if (scanner.changesFound()) {
                    scanner.displayResult(resolved -> {
                        if (resolved) {
                            panel.setUpdatedExternally(false);
                            SwingUtilities.invokeLater(() -> panel.getSidePaneManager().hide(FileUpdatePanel.class));
                        } else {
                            canceled = true;
                        }
                    });
                }
            });
            return true;
        } else {
            // User indicated to store anyway.
            if (panel.getBibDatabaseContext().getMetaData().isProtected()) {
                JOptionPane.showMessageDialog(frame, Localization.lang("Library is protected. Cannot save until external changes have been reviewed."), Localization.lang("Protected library"), JOptionPane.ERROR_MESSAGE);
                canceled = true;
            } else {
                panel.setUpdatedExternally(false);
                panel.getSidePaneManager().hide(FileUpdatePanel.class);
            }
        }
    }
    // Return false as either no external database file modifications have been found or overwrite is requested any way
    return false;
}