/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
 * or http://forgerock.org/license/CDDLv1.0.html.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at legal-notices/CDDLv1_0.txt.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information:
 *      Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 *
 *
 *      Copyright 2008-2010 Sun Microsystems, Inc.
 *      Portions Copyright 2013-2015 ForgeRock AS.
 */
package org.opends.guitools.controlpanel.ui;

import static org.opends.guitools.controlpanel.ui.ControlCenterMainPane.*;
import static org.opends.messages.AdminToolMessages.*;

import java.awt.CardLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Comparator;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.SortedSet;
import java.util.TreeSet;

import javax.naming.NamingEnumeration;
import javax.naming.directory.SearchControls;
import javax.naming.directory.SearchResult;
import javax.swing.Box;
import javax.swing.ComboBoxModel;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JEditorPane;
import javax.swing.JLabel;
import javax.swing.JMenuBar;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.border.Border;

import org.forgerock.i18n.LocalizableMessage;
import org.forgerock.i18n.LocalizableMessageBuilder;
import org.forgerock.i18n.LocalizableMessageDescriptor;
import org.forgerock.i18n.slf4j.LocalizedLogger;
import org.forgerock.opendj.ldap.schema.ObjectClassType;
import org.opends.admin.ads.util.ConnectionUtils;
import org.opends.guitools.controlpanel.browser.BrowserController;
import org.opends.guitools.controlpanel.browser.IconPool;
import org.opends.guitools.controlpanel.datamodel.AbstractIndexDescriptor;
import org.opends.guitools.controlpanel.datamodel.BackendDescriptor;
import org.opends.guitools.controlpanel.datamodel.BaseDNDescriptor;
import org.opends.guitools.controlpanel.datamodel.CategorizedComboBoxElement;
import org.opends.guitools.controlpanel.datamodel.ControlPanelInfo;
import org.opends.guitools.controlpanel.datamodel.CustomSearchResult;
import org.opends.guitools.controlpanel.datamodel.MonitoringAttributes;
import org.opends.guitools.controlpanel.datamodel.ScheduleType;
import org.opends.guitools.controlpanel.datamodel.ServerDescriptor;
import org.opends.guitools.controlpanel.datamodel.SortableListModel;
import org.opends.guitools.controlpanel.event.ConfigChangeListener;
import org.opends.guitools.controlpanel.event.ConfigurationChangeEvent;
import org.opends.guitools.controlpanel.event.ConfigurationElementCreatedListener;
import org.opends.guitools.controlpanel.task.RebuildIndexTask;
import org.opends.guitools.controlpanel.task.RestartServerTask;
import org.opends.guitools.controlpanel.task.StartServerTask;
import org.opends.guitools.controlpanel.task.StopServerTask;
import org.opends.guitools.controlpanel.task.Task;
import org.opends.guitools.controlpanel.ui.components.AddRemovePanel;
import org.opends.guitools.controlpanel.util.BackgroundTask;
import org.opends.guitools.controlpanel.util.LowerCaseComparator;
import org.opends.guitools.controlpanel.util.Utilities;
import org.opends.quicksetup.ui.CustomHTMLEditorKit;
import org.opends.server.schema.SchemaConstants;
import org.opends.server.types.ObjectClass;
import org.opends.server.types.OpenDsException;
import org.opends.server.util.ServerConstants;
import org.opends.server.util.StaticUtils;

/**
 * An abstract class that contains a number of methods that are shared by all
 * the inheriting classes. In general a StatusGenericPanel is contained in a
 * GenericDialog and specifies the kind of buttons that this dialog has. The
 * StatusGenericPanel is also notified when the dialog is displayed (through the
 * toBeDisplayed method)
 */
public abstract class StatusGenericPanel extends JPanel implements ConfigChangeListener
{
  private static final long serialVersionUID = -9123358652232556732L;

  /**
   * The string to be used as combo separator.
   */
  public static final String COMBO_SEPARATOR = "----------";

  /**
   * The not applicable message.
   */
  protected static final LocalizableMessage NOT_APPLICABLE = INFO_NOT_APPLICABLE_LABEL.get();

  private static final LocalizableMessage AUTHENTICATE = INFO_AUTHENTICATE_BUTTON_LABEL.get();
  private static final LocalizableMessage START = INFO_START_BUTTON_LABEL.get();

  private ControlPanelInfo info;

  private final boolean enableClose = true;
  private boolean enableCancel = true;
  private boolean enableOK = true;

  private boolean disposeOnClose;

  private final JPanel cardPanel;
  private final JPanel mainPanel;
  private final JEditorPane message;

  private final CardLayout cardLayout;

  private static final String MAIN_PANEL = "mainPanel";
  private static final String MESSAGE_PANEL = "messagePanel";

  private static final LocalizedLogger logger = LocalizedLogger.getLoggerForThisClass();

  /** The error pane. */
  protected JEditorPane errorPane;

  /** The last displayed message in the error pane. */
  private String lastDisplayedError;

  private final List<ConfigurationElementCreatedListener> confListeners = new ArrayList<>();

  private boolean sizeSet;
  private boolean focusSet;

  private static final DateFormat taskDateFormat = new SimpleDateFormat("yyyyMMddHHmmss");

  /**
   * Returns the title that will be used as title of the dialog.
   *
   * @return the title that will be used as title of the dialog.
   */
  public abstract LocalizableMessage getTitle();

  /**
   * Returns the buttons that the dialog where this panel is contained should
   * display.
   *
   * @return the buttons that the dialog where this panel is contained should
   *         display.
   */
  public GenericDialog.ButtonType getButtonType()
  {
    return GenericDialog.ButtonType.OK_CANCEL;
  }

  /**
   * Returns the component that should get the focus when the dialog that
   * contains this panel is displayed.
   *
   * @return the component that should get the focus.
   */
  public abstract Component getPreferredFocusComponent();

  /**
   * Returns <CODE>true</CODE> if this panel requires some bordering (in general
   * an EmptyBorder with some insets) and <CODE>false</CODE> otherwise.
   *
   * @return <CODE>true</CODE> if this panel requires some bordering (in general
   *         an EmptyBorder with some insets) and <CODE>false</CODE> otherwise.
   */
  public boolean requiresBorder()
  {
    return true;
  }

  /**
   * Returns the menu bar that the panel might have. Returns <CODE>null</CODE>
   * if the panel has no menu bar associated.
   *
   * @return the menu bar that the panel might have.
   */
  public JMenuBar getMenuBar()
  {
    return null;
  }

  /**
   * This method is called to indicate that the configuration changes should be
   * called in the background. In the case of panels which require some time to
   * be updated with the new configuration this method returns <CODE>true</CODE>
   * and the operation will be performed in the background while a message of
   * type 'Loading...' is displayed on the panel.
   *
   * @return <CODE>true</CODE> if changes should be loaded in the background and
   *         <CODE>false</CODE> otherwise.
   */
  public boolean callConfigurationChangedInBackground()
  {
    return false;
  }

  /**
   * The panel is notified that the dialog is going to be visible or invisible.
   *
   * @param visible
   *          whether is going to be visible or not.
   */
  public void toBeDisplayed(final boolean visible)
  {
  }

  /**
   * Tells whether this panel should be contained in a scroll pane or not.
   *
   * @return <CODE>true</CODE> if this panel should be contained in a scroll
   *         pane and <CODE>false</CODE> otherwise.
   */
  public boolean requiresScroll()
  {
    return true;
  }

  /**
   * Constructor.
   */
  protected StatusGenericPanel()
  {
    super(new GridBagLayout());
    setBackground(ColorAndFontConstants.background);

    cardLayout = new CardLayout();
    cardPanel = new JPanel(cardLayout);
    cardPanel.setOpaque(false);

    mainPanel = new JPanel(new GridBagLayout());
    mainPanel.setOpaque(false);

    message = Utilities.makeHtmlPane("", ColorAndFontConstants.progressFont);

    GridBagConstraints gbc = new GridBagConstraints();
    gbc.gridx = 0;
    gbc.gridy = 0;
    gbc.fill = GridBagConstraints.BOTH;
    gbc.weightx = 1.0;
    gbc.weighty = 1.0;
    super.add(cardPanel, gbc);

    cardPanel.add(mainPanel, MAIN_PANEL);

    JPanel messagePanel = new JPanel(new GridBagLayout());
    messagePanel.setOpaque(false);
    gbc.fill = GridBagConstraints.NONE;
    gbc.anchor = GridBagConstraints.CENTER;
    messagePanel.add(message, gbc);
    cardPanel.add(messagePanel, MESSAGE_PANEL);

    cardLayout.show(cardPanel, MAIN_PANEL);
  }

  /**
   * The components are not added directly to the panel but to the main panel.
   * This is done to be able to display a message that takes the whole panel (of
   * type 'Loading...') when we are doing long operations.
   *
   * @param comp
   *          the Component to be added.
   * @param constraints
   *          the constraints.
   */
  @Override
  public void add(final Component comp, final Object constraints)
  {
    mainPanel.add(comp, constraints);
  }

  /**
   * Adds a bottom glue to the main panel with the provided constraints.
   *
   * @param gbc
   *          the constraints.
   */
  protected void addBottomGlue(final GridBagConstraints gbc)
  {
    GridBagConstraints gbc2 = (GridBagConstraints) gbc.clone();
    gbc2.insets = new Insets(0, 0, 0, 0);
    gbc2.gridy++;
    gbc2.gridwidth = GridBagConstraints.REMAINDER;
    gbc2.weighty = 1.0;
    gbc2.fill = GridBagConstraints.VERTICAL;
    add(Box.createVerticalGlue(), gbc2);
    gbc.gridy++;
  }

  /**
   * Returns a label with text 'Required Field' and an icon (used as legend in
   * some panels).
   *
   * @return a label with text 'Required Field' and an icon (used as legend in
   *         some panels).
   */
  protected JLabel createRequiredLabel()
  {
    JLabel requiredLabel = Utilities.createInlineHelpLabel(INFO_CTRL_PANEL_INDICATES_REQUIRED_FIELD_LABEL.get());
    requiredLabel.setIcon(Utilities.createImageIcon(IconPool.IMAGE_PATH + "/required.gif"));

    return requiredLabel;
  }

  /**
   * Creates and adds an error pane. Is up to the caller to set the proper
   * gridheight, gridwidth, gridx and gridy on the provided GridBagConstraints.
   *
   * @param baseGbc
   *          the GridBagConstraints to be used.
   */
  protected void addErrorPane(final GridBagConstraints baseGbc)
  {
    addErrorPane(this, baseGbc);
  }

  /**
   * Adds an error pane to the provided container. Is up to the caller to set
   * the proper gridheight, gridwidth, gridx and gridy on the provided
   * GridBagConstraints.
   *
   * @param baseGbc
   *          the GridBagConstraints to be used.
   * @param p
   *          the container.
   */
  protected void addErrorPane(final Container p, final GridBagConstraints baseGbc)
  {
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.gridx = baseGbc.gridx;
    gbc.gridy = baseGbc.gridy;
    gbc.gridwidth = baseGbc.gridwidth;
    gbc.gridheight = baseGbc.gridheight;
    gbc.weightx = 1.0;
    gbc.fill = GridBagConstraints.BOTH;
    if (requiresBorder())
    {
      gbc.insets = new Insets(0, 0, 10, 0);
    }
    else
    {
      gbc.insets = new Insets(20, 20, 0, 20);
    }
    createErrorPane();
    p.add(errorPane, gbc);
  }

  /**
   * Creates the error pane.
   */
  protected void createErrorPane()
  {
    errorPane = Utilities.makeHtmlPane("", ColorAndFontConstants.progressFont);
    errorPane.setOpaque(false);
    errorPane.setEditable(false);
    errorPane.setVisible(false);
    CustomHTMLEditorKit htmlEditor = new CustomHTMLEditorKit();
    htmlEditor.addActionListener(new ActionListener()
    {
      @Override
      public void actionPerformed(final ActionEvent ev)
      {
        if (AUTHENTICATE.toString().equals(ev.getActionCommand()))
        {
          authenticate();
        }
        else if (START.toString().equals(ev.getActionCommand()))
        {
          startServer();
        }
      }
    });
    errorPane.setEditorKit(htmlEditor);
  }

  /**
   * Commodity method used to add lines, where each line contains a label, a
   * component and an inline help label.
   *
   * @param labels
   *          the labels.
   * @param comps
   *          the components.
   * @param inlineHelp
   *          the inline help labels.
   * @param panel
   *          the panel where we will add the lines.
   * @param gbc
   *          the grid bag constraints.
   */
  protected void add(final JLabel[] labels, final Component[] comps, final JLabel[] inlineHelp, final Container panel,
      final GridBagConstraints gbc)
  {
    int i = 0;
    for (Component comp : comps)
    {
      gbc.insets.left = 0;
      gbc.weightx = 0.0;
      gbc.gridx = 0;
      if (labels[i] != null)
      {
        panel.add(labels[i], gbc);
      }
      gbc.insets.left = 10;
      gbc.weightx = 1.0;
      gbc.gridx = 1;
      panel.add(comp, gbc);
      if (inlineHelp[i] != null)
      {
        gbc.insets.top = 3;
        gbc.gridy++;
        panel.add(inlineHelp[i], gbc);
      }
      gbc.insets.top = 10;
      gbc.gridy++;
      i++;
    }
  }

  /**
   * Enables the OK button in the parent dialog.
   *
   * @param enable
   *          whether to enable or disable the button.
   */
  protected void setEnabledOK(final boolean enable)
  {
    Window w = Utilities.getParentDialog(this);
    if (w instanceof GenericDialog)
    {
      ((GenericDialog) w).setEnabledOK(enable);
    }
    else if (w instanceof GenericFrame)
    {
      ((GenericFrame) w).setEnabledOK(enable);
    }
    enableOK = enable;
  }

  /**
   * Enables the Cancel button in the parent dialog.
   *
   * @param enable
   *          whether to enable or disable the button.
   */
  protected void setEnabledCancel(final boolean enable)
  {
    Window w = Utilities.getParentDialog(this);
    if (w instanceof GenericDialog)
    {
      ((GenericDialog) w).setEnabledCancel(enable);
    }
    else if (w instanceof GenericFrame)
    {
      ((GenericFrame) w).setEnabledCancel(enable);
    }
    enableCancel = enable;
  }

  /**
   * Updates the font type and color of the component to be invalid and primary.
   *
   * @param comp
   *          the component to update.
   */
  protected void setPrimaryInvalid(final JComponent comp)
  {
    comp.setFont(ColorAndFontConstants.primaryInvalidFont);
    comp.setForeground(ColorAndFontConstants.invalidFontColor);
  }

  /**
   * Updates the font type and color of the component to be valid and primary.
   *
   * @param comp
   *          the component to update.
   */
  protected void setPrimaryValid(final JComponent comp)
  {
    comp.setForeground(ColorAndFontConstants.validFontColor);
    comp.setFont(ColorAndFontConstants.primaryFont);
  }

  /**
   * Updates the font type and color of the component to be invalid and
   * secondary.
   *
   * @param comp
   *          the component to update.
   */
  protected void setSecondaryInvalid(final JComponent comp)
  {
    comp.setForeground(ColorAndFontConstants.invalidFontColor);
    comp.setFont(ColorAndFontConstants.invalidFont);
  }

  /**
   * Updates the font type and color of the component to be valid and secondary.
   *
   * @param comp
   *          the component to update.
   */
  protected void setSecondaryValid(final JComponent comp)
  {
    comp.setForeground(ColorAndFontConstants.validFontColor);
    comp.setFont(ColorAndFontConstants.defaultFont);
  }

  /**
   * Packs the parent dialog.
   */
  protected void packParentDialog()
  {
    Window dlg = Utilities.getParentDialog(this);
    if (dlg != null)
    {
      invalidate();
      dlg.invalidate();
      dlg.pack();
      if (!SwingUtilities.isEventDispatchThread())
      {
        Thread.dumpStack();
      }
    }
  }

  /**
   * Notification that the ok button has been clicked, the panel is in charge of
   * doing whatever is required (close the dialog, launch a task, etc.).
   */
  public abstract void okClicked();

  /**
   * Adds a configuration element created listener.
   *
   * @param listener
   *          the listener.
   */
  public void addConfigurationElementCreatedListener(final ConfigurationElementCreatedListener listener)
  {
    getConfigurationElementCreatedListeners().add(listener);
  }

  /**
   * Removes a configuration element created listener.
   *
   * @param listener
   *          the listener.
   */
  public void removeConfigurationElementCreatedListener(final ConfigurationElementCreatedListener listener)
  {
    getConfigurationElementCreatedListeners().remove(listener);
  }

  /**
   * Returns the list of configuration listeners.
   *
   * @return the list of configuration listeners.
   */
  protected List<ConfigurationElementCreatedListener> getConfigurationElementCreatedListeners()
  {
    return confListeners;
  }

  /**
   * Notification that cancel was clicked, the panel is in charge of doing
   * whatever is required (close the dialog, etc.).
   */
  public void cancelClicked()
  {
    // Default implementation
    Utilities.getParentDialog(this).setVisible(false);
    if (isDisposeOnClose())
    {
      Utilities.getParentDialog(this).dispose();
    }
  }

  /**
   * Whether the dialog should be disposed when the user closes it.
   *
   * @return <CODE>true</CODE> if the dialog should be disposed when the user
   *         closes it or <CODE>true</CODE> otherwise.
   */
  public boolean isDisposeOnClose()
  {
    return disposeOnClose;
  }

  /**
   * Sets whether the dialog should be disposed when the user closes it or not.
   *
   * @param disposeOnClose
   *          <CODE>true</CODE> if the dialog should be disposed when the user
   *          closes it or <CODE>true</CODE> otherwise.
   */
  public void setDisposeOnClose(final boolean disposeOnClose)
  {
    this.disposeOnClose = disposeOnClose;
  }

  /**
   * Notification that close was clicked, the panel is in charge of doing
   * whatever is required (close the dialog, etc.).
   */
  public void closeClicked()
  {
    // Default implementation
    Utilities.getParentDialog(this).setVisible(false);
    if (isDisposeOnClose())
    {
      Utilities.getParentDialog(this).dispose();
    }
  }

  /**
   * Displays a dialog with the provided list of error messages.
   *
   * @param errors
   *          the error messages.
   */
  protected void displayErrorDialog(final Collection<LocalizableMessage> errors)
  {
    Utilities.displayErrorDialog(Utilities.getParentDialog(this), errors);
  }

  /**
   * Displays a confirmation message.
   *
   * @param title
   *          the title/summary of the message.
   * @param msg
   *          the description of the confirmation.
   * @return <CODE>true</CODE> if the user confirms and <CODE>false</CODE>
   *         otherwise.
   */
  protected boolean displayConfirmationDialog(final LocalizableMessage title, final LocalizableMessage msg)
  {
    return Utilities.displayConfirmationDialog(Utilities.getParentDialog(this), title, msg);
  }

  /**
   * If the index must be rebuilt, asks the user for confirmation. If the user
   * confirms launches a task that will rebuild the indexes. The progress will
   * be displayed in the provided progress dialog.
   *
   * @param index
   *          the index.
   * @param progressDialog
   *          the progress dialog.
   */
  protected void rebuildIndexIfNecessary(final AbstractIndexDescriptor index, final ProgressDialog progressDialog)
  {
    progressDialog.setTaskIsOver(false);
    boolean rebuildIndexes;
    String backendName = index.getBackend().getBackendID();
    LocalizableMessage summary = INFO_CTRL_PANEL_INDEX_REBUILD_REQUIRED_SUMMARY.get();
    if (!isServerRunning())
    {
      rebuildIndexes = Utilities.displayConfirmationDialog( progressDialog, summary,
          INFO_CTRL_PANEL_INDEX_REBUILD_REQUIRED_OFFLINE_DETAILS.get(index.getName(), backendName));
    }
    else if (isLocal())
    {
      rebuildIndexes = Utilities.displayConfirmationDialog(progressDialog, summary,
          INFO_CTRL_PANEL_INDEX_REBUILD_REQUIRED_ONLINE_DETAILS.get(index.getName(), backendName, backendName));
    }
    else
    {
      Utilities.displayWarningDialog(progressDialog, summary,
          INFO_CTRL_PANEL_INDEX_REBUILD_REQUIRED_REMOTE_DETAILS.get(index.getName(), backendName));
      rebuildIndexes = false;
    }
    if (rebuildIndexes)
    {
      SortedSet<AbstractIndexDescriptor> indexes = new TreeSet<>();
      indexes.add(index);
      SortedSet<String> baseDNs = new TreeSet<>();
      for (BaseDNDescriptor b : index.getBackend().getBaseDns())
      {
        baseDNs.add(Utilities.unescapeUtf8(b.getDn().toString()));
      }

      RebuildIndexTask newTask = new RebuildIndexTask(getInfo(), progressDialog, baseDNs, indexes);
      List<LocalizableMessage> errors = new ArrayList<>();
      for (Task task : getInfo().getTasks())
      {
        task.canLaunch(newTask, errors);
      }
      if (errors.isEmpty())
      {
        progressDialog.appendProgressHtml("<br><br>");
        launchOperation(newTask, INFO_CTRL_PANEL_REBUILDING_INDEXES_SUMMARY.get(backendName),
            INFO_CTRL_PANEL_REBUILDING_INDEXES_SUCCESSFUL_SUMMARY.get(),
            INFO_CTRL_PANEL_REBUILDING_INDEXES_SUCCESSFUL_DETAILS.get(),
            ERR_CTRL_PANEL_REBUILDING_INDEXES_ERROR_SUMMARY.get(), null,
            ERR_CTRL_PANEL_REBUILDING_INDEXES_ERROR_DETAILS, progressDialog, false);
        if (progressDialog.isModal())
        {
          progressDialog.toFront();
        }
        progressDialog.setVisible(true);
        if (!progressDialog.isModal())
        {
          progressDialog.toFront();
        }
      }
      if (!errors.isEmpty())
      {
        displayErrorDialog(errors);
      }
    }
    else
    {
      progressDialog.setTaskIsOver(true);
      if (progressDialog.isVisible())
      {
        progressDialog.toFront();
      }
    }
  }

  /**
   * A class used to avoid the possibility a certain type of objects in a combo
   * box. This is used for instance in the combo box that contains base DNs
   * where the base DNs are separated in backends, so the combo box displays
   * both the backends (~ categories) and base DNs (~ values) and we do not
   * allow to select the backends (~ categories).
   */
  protected class IgnoreItemListener implements ItemListener
  {
    private Object selectedItem;
    private final JComboBox combo;

    /**
     * Constructor.
     *
     * @param combo
     *          the combo box.
     */
    public IgnoreItemListener(final JComboBox combo)
    {
      this.combo = combo;
      selectedItem = combo.getSelectedItem();
      if (isCategory(selectedItem))
      {
        selectedItem = null;
      }
    }

    @Override
    public void itemStateChanged(final ItemEvent ev)
    {
      Object o = combo.getSelectedItem();
      if (isCategory(o))
      {
        if (selectedItem == null)
        {
          selectedItem = firstNonCategoryItem(combo.getModel());
        }
        if (selectedItem != null)
        {
          combo.setSelectedItem(selectedItem);
        }
      }
      else if (COMBO_SEPARATOR.equals(o))
      {
        combo.setSelectedItem(selectedItem);
      }
      else
      {
        selectedItem = o;
      }
    }

    private Object firstNonCategoryItem(ComboBoxModel model)
    {
      for (int i = 0; i < model.getSize(); i++)
      {
        Object item = model.getElementAt(i);
        if (item instanceof CategorizedComboBoxElement && !isCategory(item))
        {
          return item;
        }
      }
      return null;
    }
  }

  /**
   * Returns the HTML required to render an Authenticate button in HTML.
   *
   * @return the HTML required to render an Authenticate button in HTML.
   */
  protected String getAuthenticateHTML()
  {
    return "<INPUT type=\"submit\" value=\"" + AUTHENTICATE + "\"></INPUT>";
  }

  /**
   * Returns the HTML required to render an Start button in HTML.
   *
   * @return the HTML required to render an Start button in HTML.
   */
  protected String getStartServerHTML()
  {
    return "<INPUT type=\"submit\" value=\"" + START + "\"></INPUT>";
  }

  /**
   * Updates the error panel and enables/disables the OK button depending on the
   * status of the server.
   *
   * @param desc
   *          the Server Descriptor.
   * @param details
   *          the message to be displayed if authentication has not been
   *          provided and the server is running.
   */
  protected void updateErrorPaneAndOKButtonIfAuthRequired(
      final ServerDescriptor desc, final LocalizableMessage details)
  {
    if (authenticationRequired(desc))
    {
      LocalizableMessageBuilder mb = new LocalizableMessageBuilder();
      mb.append(details);
      mb.append("<br><br>").append(getAuthenticateHTML());
      LocalizableMessage title = INFO_CTRL_PANEL_AUTHENTICATION_REQUIRED_SUMMARY.get();
      updateErrorPane(
          errorPane, title, ColorAndFontConstants.errorTitleFont, mb.toMessage(), ColorAndFontConstants.defaultFont);
      SwingUtilities.invokeLater(new Runnable()
      {
        @Override
        public void run()
        {
          errorPane.setVisible(true);
          packParentDialog();
          setEnabledOK(false);
        }
      });
    }
    else
    {
      SwingUtilities.invokeLater(new Runnable()
      {
        @Override
        public void run()
        {
          errorPane.setVisible(false);
          checkOKButtonEnable();
        }
      });
    }
  }

  /**
   * Returns <CODE>true</CODE> if the server is running and the user did not
   * provide authentication and <CODE>false</CODE> otherwise.
   *
   * @param desc
   *          the server descriptor.
   * @return <CODE>true</CODE> if the server is running and the user did not
   *         provide authentication and <CODE>false</CODE> otherwise.
   */
  protected boolean authenticationRequired(final ServerDescriptor desc)
  {
    ServerDescriptor.ServerStatus status = desc.getStatus();
    return (status == ServerDescriptor.ServerStatus.STARTED && !desc.isAuthenticated())
        || status == ServerDescriptor.ServerStatus.NOT_CONNECTED_TO_REMOTE;
  }

  /**
   * Updates the error panel depending on the status of the server.
   *
   * @param desc
   *          the Server Descriptor.
   * @param details
   *          the message to be displayed if authentication has not been
   *          provided and the server is running.
   */
  protected void updateErrorPaneIfAuthRequired(final ServerDescriptor desc, final LocalizableMessage details)
  {
    if (authenticationRequired(desc))
    {
      LocalizableMessage title = INFO_CTRL_PANEL_AUTHENTICATION_REQUIRED_SUMMARY.get();
      LocalizableMessageBuilder mb = new LocalizableMessageBuilder();
      mb.append(details);
      mb.append("<br><br>").append(getAuthenticateHTML());
      updateErrorPane(errorPane, title, ColorAndFontConstants.errorTitleFont, mb.toMessage(),
          ColorAndFontConstants.defaultFont);
      SwingUtilities.invokeLater(new Runnable()
      {
        @Override
        public void run()
        {
          errorPane.setVisible(true);
          packParentDialog();
        }
      });
    }
    else
    {
      SwingUtilities.invokeLater(new Runnable()
      {
        @Override
        public void run()
        {
          errorPane.setVisible(false);
        }
      });
    }
  }

  /**
   * Updates the error panel depending on the status of the server. This method
   * will display an error message in the error pane if the server is not
   * running and another message if the server is running but authentication has
   * not been provided.
   *
   * @param desc
   *          the Server Descriptor.
   * @param detailsServerNotRunning
   *          the message to be displayed if the server is not running.
   * @param authRequired
   *          the message to be displayed if authentication has not been
   *          provided and the server is running.
   */
  protected void updateErrorPaneIfServerRunningAndAuthRequired(final ServerDescriptor desc,
      final LocalizableMessage detailsServerNotRunning, final LocalizableMessage authRequired)
  {
    ServerDescriptor.ServerStatus status = desc.getStatus();
    if (status != ServerDescriptor.ServerStatus.STARTED
        && status != ServerDescriptor.ServerStatus.NOT_CONNECTED_TO_REMOTE)
    {
      LocalizableMessage title = INFO_CTRL_PANEL_SERVER_NOT_RUNNING_SUMMARY.get();
      LocalizableMessageBuilder mb = new LocalizableMessageBuilder();
      mb.append(detailsServerNotRunning);
      mb.append("<br><br>").append(getStartServerHTML());
      updateErrorPane(
          errorPane, title, ColorAndFontConstants.errorTitleFont, mb.toMessage(), ColorAndFontConstants.defaultFont);
      SwingUtilities.invokeLater(new Runnable()
      {
        /** {@inheritDoc} */
        @Override
        public void run()
        {
          errorPane.setVisible(true);
          packParentDialog();
        }
      });
    }
    else if (authenticationRequired(desc))
    {
      LocalizableMessage title = INFO_CTRL_PANEL_AUTHENTICATION_REQUIRED_SUMMARY.get();
      LocalizableMessageBuilder mb = new LocalizableMessageBuilder();
      mb.append(authRequired);
      mb.append("<br><br>").append(getAuthenticateHTML());
      updateErrorPane(
          errorPane, title, ColorAndFontConstants.errorTitleFont, mb.toMessage(), ColorAndFontConstants.defaultFont);
      SwingUtilities.invokeLater(new Runnable()
      {
        @Override
        public void run()
        {
          errorPane.setVisible(true);
          packParentDialog();
        }
      });
    }
    else
    {
      SwingUtilities.invokeLater(new Runnable()
      {
        @Override
        public void run()
        {
          errorPane.setVisible(false);
        }
      });
    }
  }

  /**
   * Updates the enabling/disabling of the OK button. The code assumes that the
   * error pane has already been updated.
   */
  protected void checkOKButtonEnable()
  {
    setEnabledOK(!errorPane.isVisible());
  }

  /**
   * Returns <CODE>true</CODE> if the provided object is a category object in a
   * combo box.
   *
   * @param o
   *          the item in the combo box.
   * @return <CODE>true</CODE> if the provided object is a category object in a
   *         combo box.
   */
  protected boolean isCategory(final Object o)
  {
    if (o instanceof CategorizedComboBoxElement)
    {
      CategorizedComboBoxElement desc = (CategorizedComboBoxElement) o;
      return desc.getType() == CategorizedComboBoxElement.Type.CATEGORY;
    }
    return false;
  }

  /**
   * Returns the control panel info object.
   *
   * @return the control panel info object.
   */
  public ControlPanelInfo getInfo()
  {
    return info;
  }

  /**
   * Sets the control panel info object.
   *
   * @param info
   *          the control panel info object.
   */
  public void setInfo(final ControlPanelInfo info)
  {
    if (!info.equals(this.info))
    {
      if (this.info != null)
      {
        this.info.removeConfigChangeListener(this);
      }
      this.info = info;
      this.info.addConfigChangeListener(this);
      if (SwingUtilities.isEventDispatchThread() && callConfigurationChangedInBackground())
      {
        final Color savedBackground = getBackground();
        setBackground(ColorAndFontConstants.background);
        if (!sizeSet)
        {
          setPreferredSize(mainPanel.getPreferredSize());
          sizeSet = true;
        }
        // Do it outside the event thread if the panel requires it.
        BackgroundTask<Void> worker = new BackgroundTask<Void>()
        {
          @Override
          public Void processBackgroundTask() throws Throwable
          {
            StaticUtils.sleep(1000);
            configurationChanged(new ConfigurationChangeEvent(StatusGenericPanel.this.info,
                StatusGenericPanel.this.info.getServerDescriptor()));
            return null;
          }

          @Override
          public void backgroundTaskCompleted(final Void returnValue, final Throwable t)
          {
            setBackground(savedBackground);
            displayMainPanel();
            if (!focusSet)
            {
              focusSet = true;
              Component comp = getPreferredFocusComponent();
              if (comp != null)
              {
                comp.requestFocusInWindow();
              }
            }
          }
        };
        displayMessage(INFO_CTRL_PANEL_LOADING_PANEL_SUMMARY.get());
        worker.startBackgroundTask();
      }
      else if (info.getServerDescriptor() != null)
      {
        configurationChanged(new ConfigurationChangeEvent(this.info, this.info.getServerDescriptor()));
      }
    }
  }

  /** Displays the main panel. */
  protected void displayMainPanel()
  {
    cardLayout.show(cardPanel, MAIN_PANEL);
  }

  /**
   * Displays a message and hides the main panel.
   *
   * @param msg
   *          the message to be displayed.
   */
  protected void displayMessage(final LocalizableMessage msg)
  {
    message.setText(Utilities.applyFont(msg.toString(), ColorAndFontConstants.defaultFont));
    cardLayout.show(cardPanel, MESSAGE_PANEL);
    message.requestFocusInWindow();
  }

  /**
   * Displays an error message and hides the main panel.
   *
   * @param title
   *          the title of the message to be displayed.
   * @param msg
   *          the message to be displayed.
   */
  protected void displayErrorMessage(final LocalizableMessage title, final LocalizableMessage msg)
  {
    updateErrorPane(message, title, ColorAndFontConstants.errorTitleFont, msg, ColorAndFontConstants.defaultFont);
    cardLayout.show(cardPanel, MESSAGE_PANEL);
    message.requestFocusInWindow();
  }

  /**
   * Updates the contents of an editor pane using the error format.
   *
   * @param pane
   *          the editor pane to be updated.
   * @param title
   *          the title.
   * @param titleFont
   *          the font to be used for the title.
   * @param details
   *          the details message.
   * @param detailsFont
   *          the font to be used for the details.
   */
  protected void updateErrorPane(final JEditorPane pane, final LocalizableMessage title, final Font titleFont,
      final LocalizableMessage details, final Font detailsFont)
  {
    updatePane(pane, title, titleFont, details, detailsFont, PanelType.ERROR);
  }

  /**
   * Updates the contents of an editor pane using the confirmation format.
   *
   * @param pane
   *          the editor pane to be updated.
   * @param title
   *          the title.
   * @param titleFont
   *          the font to be used for the title.
   * @param details
   *          the details message.
   * @param detailsFont
   *          the font to be used for the details.
   */
  protected void updateConfirmationPane(final JEditorPane pane, final LocalizableMessage title, final Font titleFont,
      final LocalizableMessage details, final Font detailsFont)
  {
    updatePane(pane, title, titleFont, details, detailsFont, PanelType.CONFIRMATION);
  }

  /** The different types of error panels that are handled. */
  private enum PanelType
  {
    /** The message in the panel is an error. */
    ERROR,
    /** The message in the panel is a confirmation. */
    CONFIRMATION,
    /** The message in the panel is an information message. */
    INFORMATION,
    /** The message in the panel is a warning message. */
    WARNING
  }

  /**
   * Updates the contents of an editor pane using the provided format.
   *
   * @param pane
   *          the editor pane to be updated.
   * @param title
   *          the title.
   * @param titleFont
   *          the font to be used for the title.
   * @param details
   *          the details message.
   * @param detailsFont
   *          the font to be used for the details.
   * @param type
   *          the type of panel.
   */
  private void updatePane(final JEditorPane pane, final LocalizableMessage title, final Font titleFont,
      final LocalizableMessage details, final Font detailsFont, final PanelType type)
  {
    String text = getText(type, title, titleFont, details, detailsFont);
    if (!text.equals(lastDisplayedError))
    {
      LocalizableMessage wrappedTitle = Utilities.wrapHTML(title, 80);
      LocalizableMessage wrappedDetails = Utilities.wrapHTML(details, 90);

      JEditorPane wrappedPane = Utilities.makeHtmlPane(null, pane.getFont());
      String wrappedText;
      switch (type)
      {
      case ERROR:
        wrappedText = Utilities.getFormattedError(wrappedTitle, titleFont, wrappedDetails, detailsFont);
        break;
      default:
        wrappedText = Utilities.getFormattedSuccess(wrappedTitle, titleFont, wrappedDetails, detailsFont);
        break;
      }
      wrappedPane.setText(wrappedText);
      Dimension d = wrappedPane.getPreferredSize();

      pane.setText(text);
      pane.setPreferredSize(d);

      lastDisplayedError = text;
    }
    final Window window = Utilities.getParentDialog(StatusGenericPanel.this);
    if (window != null)
    {
      SwingUtilities.invokeLater(new Runnable()
      {
        @Override
        public void run()
        {
          pane.invalidate();
          window.validate();
        }
      });
    }
  }

  private String getText(
      PanelType type, LocalizableMessage title, Font titleFont, LocalizableMessage details, Font detailsFont)
  {
    switch (type)
    {
    case ERROR:
      return Utilities.getFormattedError(title, titleFont, details, detailsFont);
    case CONFIRMATION:
      return Utilities.getFormattedConfirmation(title, titleFont, details, detailsFont);
    case WARNING:
      return Utilities.getFormattedWarning(title, titleFont, details, detailsFont);
    default:
      return Utilities.getFormattedSuccess(title, titleFont, details, detailsFont);
    }
  }

  /**
   * Commodity method used to update the elements of a combo box that contains
   * the different user backends. If no backends are found the combo box will be
   * made invisible and a label will be made visible. This method does not
   * update the label's text nor creates any layout.
   *
   * @param combo
   *          the combo to be updated.
   * @param lNoBackendsFound
   *          the label that must be shown if no user backends are found.
   * @param desc
   *          the server descriptor that contains the configuration.
   */
  protected void updateSimpleBackendComboBoxModel(final JComboBox combo, final JLabel lNoBackendsFound,
      final ServerDescriptor desc)
  {
    final SortedSet<String> newElements = new TreeSet<>(new LowerCaseComparator());
    for (BackendDescriptor backend : desc.getBackends())
    {
      if (!backend.isConfigBackend())
      {
        newElements.add(backend.getBackendID());
      }
    }
    DefaultComboBoxModel model = (DefaultComboBoxModel) combo.getModel();
    updateComboBoxModel(newElements, model);
    SwingUtilities.invokeLater(new Runnable()
    {
      @Override
      public void run()
      {
        boolean noElems = newElements.isEmpty();
        combo.setVisible(!noElems);
        lNoBackendsFound.setVisible(noElems);
      }
    });
  }

  /**
   * Method that says if a backend must be displayed. Only non-config backends
   * are displayed.
   *
   * @param backend
   *          the backend.
   * @return <CODE>true</CODE> if the backend must be displayed and
   *         <CODE>false</CODE> otherwise.
   */
  protected boolean displayBackend(final BackendDescriptor backend)
  {
    return !backend.isConfigBackend();
  }

  /**
   * Commodity method to update a combo box model with the backends of a server.
   *
   * @param model
   *          the combo box model to be updated.
   * @param desc
   *          the server descriptor containing the configuration.
   */
  protected void updateBaseDNComboBoxModel(final DefaultComboBoxModel model, final ServerDescriptor desc)
  {
    Set<CategorizedComboBoxElement> newElements = new LinkedHashSet<>();
    SortedSet<String> backendIDs = new TreeSet<>(new LowerCaseComparator());
    Map<String, SortedSet<String>> hmBaseDNs = new HashMap<>();

    for (BackendDescriptor backend : desc.getBackends())
    {
      if (displayBackend(backend))
      {
        String backendID = backend.getBackendID();
        backendIDs.add(backendID);
        SortedSet<String> baseDNs = new TreeSet<>(new LowerCaseComparator());
        for (BaseDNDescriptor baseDN : backend.getBaseDns())
        {
          try
          {
            baseDNs.add(Utilities.unescapeUtf8(baseDN.getDn().toString()));
          }
          catch (Throwable t)
          {
            throw new RuntimeException("Unexpected error: " + t, t);
          }
        }
        hmBaseDNs.put(backendID, baseDNs);
      }
    }

    for (String backendID : backendIDs)
    {
      newElements.add(new CategorizedComboBoxElement(backendID, CategorizedComboBoxElement.Type.CATEGORY));
      SortedSet<String> baseDNs = hmBaseDNs.get(backendID);
      for (String baseDN : baseDNs)
      {
        newElements.add(new CategorizedComboBoxElement(baseDN, CategorizedComboBoxElement.Type.REGULAR));
      }
    }
    updateComboBoxModel(newElements, model);
  }

  /**
   * Updates a combo box model with a number of items.
   *
   * @param newElements
   *          the new items for the combo box model.
   * @param model
   *          the combo box model to be updated.
   */
  protected void updateComboBoxModel(final Collection<?> newElements, final DefaultComboBoxModel model)
  {
    updateComboBoxModel(newElements, model, null);
  }

  /**
   * Updates a combo box model with a number of items. The method assumes that
   * is called outside the event thread.
   *
   * @param newElements
   *          the new items for the combo box model.
   * @param model
   *          the combo box model to be updated.
   * @param comparator
   *          the object that will be used to compare the objects in the model.
   *          If <CODE>null</CODE>, the equals method will be used.
   */
  private void updateComboBoxModel(final Collection<?> newElements, final DefaultComboBoxModel model,
      final Comparator<Object> comparator)
  {
    SwingUtilities.invokeLater(new Runnable()
    {
      @Override
      public void run()
      {
        Utilities.updateComboBoxModel(newElements, model, comparator);
      }
    });
  }

  /**
   * Updates a map, so that the keys are the base DN where the indexes are
   * defined and the values are a sorted set of indexes.
   *
   * @param desc
   *          the server descriptor containing the index configuration.
   * @param hmIndexes
   *          the map to be updated.
   */
  protected void updateIndexMap(
      final ServerDescriptor desc, final Map<String, SortedSet<AbstractIndexDescriptor>> hmIndexes)
  {
    synchronized (hmIndexes)
    {
      Set<String> dns = new HashSet<>();
      for (BackendDescriptor backend : desc.getBackends())
      {
        if (backend.getType() == BackendDescriptor.Type.PLUGGABLE)
        {
          for (BaseDNDescriptor baseDN : backend.getBaseDns())
          {
            String dn;
            try
            {
              dn = Utilities.unescapeUtf8(baseDN.getDn().toString());
            }
            catch (Throwable t)
            {
              throw new RuntimeException("Unexpected error: " + t, t);
            }
            dns.add(dn);
            SortedSet<AbstractIndexDescriptor> indexes = new TreeSet<AbstractIndexDescriptor>(backend.getIndexes());
            indexes.addAll(backend.getVLVIndexes());
            SortedSet<AbstractIndexDescriptor> currentIndexes = hmIndexes.get(dn);
            if (currentIndexes != null)
            {
              if (!currentIndexes.equals(indexes))
              {
                hmIndexes.put(dn, indexes);
              }
            }
            else
            {
              hmIndexes.put(dn, indexes);
            }
          }
        }
      }
      for (String dn : new HashSet<String>(hmIndexes.keySet()))
      {
        if (!dns.contains(dn))
        {
          hmIndexes.remove(dn);
        }
      }
    }
  }

  /**
   * Updates and addremove panel with the contents of the provided item. The
   * selected item represents a base DN.
   *
   * @param hmIndexes
   *          the map that contains the indexes definitions as values and the
   *          base DNs as keys.
   * @param selectedItem
   *          the selected item.
   * @param addRemove
   *          the add remove panel to be updated.
   */
  protected void comboBoxSelected(final Map<String, SortedSet<AbstractIndexDescriptor>> hmIndexes,
      final CategorizedComboBoxElement selectedItem, final AddRemovePanel<AbstractIndexDescriptor> addRemove)
  {
    synchronized (hmIndexes)
    {
      String selectedDn = null;
      if (selectedItem != null)
      {
        selectedDn = (String) selectedItem.getValue();
      }
      if (selectedDn != null)
      {
        SortedSet<AbstractIndexDescriptor> indexes = hmIndexes.get(selectedDn);
        if (indexes != null)
        {
          boolean availableChanged = false;
          boolean selectedChanged = false;
          SortableListModel<AbstractIndexDescriptor> availableListModel = addRemove.getAvailableListModel();
          SortableListModel<AbstractIndexDescriptor> selectedListModel = addRemove.getSelectedListModel();
          SortedSet<AbstractIndexDescriptor> availableIndexes = availableListModel.getData();
          SortedSet<AbstractIndexDescriptor> selectedIndexes = selectedListModel.getData();
          availableChanged = availableIndexes.retainAll(indexes);
          selectedChanged = selectedIndexes.retainAll(indexes);

          for (AbstractIndexDescriptor index : indexes)
          {
            if (!availableIndexes.contains(index) && !selectedIndexes.contains(index))
            {
              availableIndexes.add(index);
              availableChanged = true;
            }
          }
          if (availableChanged)
          {
            availableListModel.clear();
            availableListModel.addAll(availableIndexes);
            availableListModel.fireContentsChanged(availableListModel, 0, availableListModel.getSize());
          }
          if (selectedChanged)
          {
            selectedListModel.clear();
            selectedListModel.addAll(selectedIndexes);
            selectedListModel.fireContentsChanged(selectedListModel, 0, selectedListModel.getSize());
          }
        }
      }
    }
  }

  /**
   * Returns <CODE>true</CODE> if the cancel button is enabled and
   * <CODE>false</CODE> otherwise.
   *
   * @return <CODE>true</CODE> if the cancel button is enabled and
   *         <CODE>false</CODE> otherwise.
   */
  public boolean isEnableCancel()
  {
    return enableCancel;
  }

  /**
   * Returns <CODE>true</CODE> if the close button is enabled and
   * <CODE>false</CODE> otherwise.
   *
   * @return <CODE>true</CODE> if the close button is enabled and
   *         <CODE>false</CODE> otherwise.
   */
  public boolean isEnableClose()
  {
    return enableClose;
  }

  /**
   * Returns <CODE>true</CODE> if the ok button is enabled and
   * <CODE>false</CODE> otherwise.
   *
   * @return <CODE>true</CODE> if the ok button is enabled and
   *         <CODE>false</CODE> otherwise.
   */
  public boolean isEnableOK()
  {
    return enableOK;
  }

  /**
   * Returns <CODE>true</CODE> if the server is running and <CODE>false</CODE>
   * otherwise.
   *
   * @return <CODE>true</CODE> if the server is running and <CODE>false</CODE>
   *         otherwise.
   */
  protected boolean isServerRunning()
  {
    return getInfo().getServerDescriptor().getStatus() == ServerDescriptor.ServerStatus.STARTED;
  }

  /**
   * Returns <CODE>true</CODE> if the managed server is the local installation
   * (where the control panel is installed) <CODE>false</CODE> otherwise.
   *
   * @return <CODE>true</CODE> if the managed server is the local installation
   *         (where the control panel is installed) <CODE>false</CODE>
   *         otherwise.
   */
  protected boolean isLocal()
  {
    return getInfo().getServerDescriptor().isLocal();
  }

  /**
   * Launch an task.
   *
   * @param task
   *          the task to be launched.
   * @param initialSummary
   *          the initial summary to be displayed in the progress dialog.
   * @param successSummary
   *          the success summary to be displayed in the progress dialog if the
   *          task is successful.
   * @param successDetail
   *          the success details to be displayed in the progress dialog if the
   *          task is successful.
   * @param errorSummary
   *          the error summary to be displayed in the progress dialog if the
   *          task ended with error.
   * @param errorDetail
   *          error details to be displayed in the progress dialog if the task
   *          ended with error.
   * @param errorDetailCode
   *          error detail message to be displayed in the progress dialog if the
   *          task ended with error and we have an exit error code (for instance
   *          if the error occurred when launching a script we will have an
   *          error code).
   * @param dialog
   *          the progress dialog.
   */
  protected void launchOperation(final Task task, final LocalizableMessage initialSummary,
      final LocalizableMessage successSummary, final LocalizableMessage successDetail,
      final LocalizableMessage errorSummary, final LocalizableMessage errorDetail,
      final LocalizableMessageDescriptor.Arg1<Number> errorDetailCode, final ProgressDialog dialog)
  {
    launchOperation(task, initialSummary, successSummary, successDetail, errorSummary, errorDetail, errorDetailCode,
        dialog, true);
  }

  /**
   * Launch an task.
   *
   * @param task
   *          the task to be launched.
   * @param initialSummary
   *          the initial summary to be displayed in the progress dialog.
   * @param successSummary
   *          the success summary to be displayed in the progress dialog if the
   *          task is successful.
   * @param successDetail
   *          the success details to be displayed in the progress dialog if the
   *          task is successful.
   * @param errorSummary
   *          the error summary to be displayed in the progress dialog if the
   *          task ended with error.
   * @param errorDetail
   *          error details to be displayed in the progress dialog if the task
   *          ended with error.
   * @param errorDetailCode
   *          error detail message to be displayed in the progress dialog if the
   *          task ended with error and we have an exit error code (for instance
   *          if the error occurred when launching a script we will have an
   *          error code).
   * @param dialog
   *          the progress dialog.
   * @param resetLogs
   *          whether the contents of the progress dialog should be reset or
   *          not.
   */
  private void launchOperation(final Task task, final LocalizableMessage initialSummary,
      final LocalizableMessage successSummary, final LocalizableMessage successDetail,
      final LocalizableMessage errorSummary, final LocalizableMessage errorDetail,
      final LocalizableMessageDescriptor.Arg1<Number> errorDetailCode, final ProgressDialog dialog,
      final boolean resetLogs)
  {
    launchOperation(task, initialSummary, successSummary, successDetail, errorSummary, errorDetail, errorDetailCode,
        dialog, resetLogs, getInfo());
  }

  /**
   * Launch an task.
   *
   * @param task
   *          the task to be launched.
   * @param initialSummary
   *          the initial summary to be displayed in the progress dialog.
   * @param successSummary
   *          the success summary to be displayed in the progress dialog if the
   *          task is successful.
   * @param successDetail
   *          the success details to be displayed in the progress dialog if the
   *          task is successful.
   * @param errorSummary
   *          the error summary to be displayed in the progress dialog if the
   *          task ended with error.
   * @param errorDetail
   *          error details to be displayed in the progress dialog if the task
   *          ended with error.
   * @param errorDetailCode
   *          error detail message to be displayed in the progress dialog if the
   *          task ended with error and we have an exit error code (for instance
   *          if the error occurred when launching a script we will have an
   *          error code).
   * @param dialog
   *          the progress dialog.
   * @param resetLogs
   *          whether the contents of the progress dialog should be reset or
   *          not.
   * @param info
   *          the ControlPanelInfo.
   */
  public static void launchOperation(final Task task, final LocalizableMessage initialSummary,
      final LocalizableMessage successSummary, final LocalizableMessage successDetail,
      final LocalizableMessage errorSummary, final LocalizableMessage errorDetail,
      final LocalizableMessageDescriptor.Arg1<Number> errorDetailCode, final ProgressDialog dialog,
      final boolean resetLogs, final ControlPanelInfo info)
  {
    dialog.setTaskIsOver(false);
    dialog.getProgressBar().setIndeterminate(true);
    dialog.addPrintStreamListeners(task.getOutPrintStream(), task.getErrorPrintStream());
    if (resetLogs)
    {
      dialog.resetProgressLogs();
    }
    String cmdLine = task.getCommandLineToDisplay();
    if (cmdLine != null)
    {
      dialog.appendProgressHtml(Utilities.applyFont(INFO_CTRL_PANEL_EQUIVALENT_COMMAND_LINE.get() + "<br><b>" + cmdLine
          + "</b><br><br>", ColorAndFontConstants.progressFont));
    }
    dialog.setEnabledClose(false);
    dialog.setSummary(LocalizableMessage.raw(Utilities.applyFont(initialSummary.toString(),
        ColorAndFontConstants.defaultFont)));
    dialog.getProgressBar().setVisible(true);
    BackgroundTask<Task> worker = new BackgroundTask<Task>()
    {
      @Override
      public Task processBackgroundTask() throws Throwable
      {
        task.runTask();
        if (task.regenerateDescriptor())
        {
          info.regenerateDescriptor();
        }
        return task;
      }

      @Override
      public void backgroundTaskCompleted(final Task returnValue, Throwable t)
      {
        String summaryMsg;
        if (task.getState() == Task.State.FINISHED_SUCCESSFULLY)
        {
          summaryMsg =
              Utilities.getFormattedSuccess(successSummary, ColorAndFontConstants.errorTitleFont, successDetail,
                  ColorAndFontConstants.defaultFont);
        }
        else
        {
          if (t == null)
          {
            t = task.getLastException();
          }

          if (t != null)
          {
            logger.warn(LocalizableMessage.raw("Error occurred running task: " + t, t));
            if (task.getReturnCode() != null && errorDetailCode != null)
            {
              String sThrowable;
              if (t instanceof OpenDsException)
              {
                sThrowable = ((OpenDsException) t).getMessageObject().toString();
              }
              else if (t.getMessage() != null)
              {
                sThrowable = t.getMessage();
              }
              else
              {
                sThrowable = t.toString();
              }
              LocalizableMessageBuilder mb = new LocalizableMessageBuilder();
              mb.append(errorDetailCode.get(task.getReturnCode()));
              mb.append("  ").append(INFO_CTRL_PANEL_DETAILS_THROWABLE.get(sThrowable));
              summaryMsg =
                  Utilities.getFormattedError(errorSummary, ColorAndFontConstants.errorTitleFont, mb.toMessage(),
                      ColorAndFontConstants.defaultFont);
            }
            else if (errorDetail != null)
            {
              LocalizableMessageBuilder mb = new LocalizableMessageBuilder();
              mb.append(errorDetail);
              mb.append(INFO_CTRL_PANEL_DETAILS_THROWABLE.get(t));
              summaryMsg =
                  Utilities.getFormattedError(errorSummary, ColorAndFontConstants.errorTitleFont, mb.toMessage(),
                      ColorAndFontConstants.defaultFont);
            }
            else
            {
              summaryMsg = null;
            }
          }
          else if (task.getReturnCode() != null && errorDetailCode != null)
          {
            summaryMsg =
                Utilities.getFormattedError(errorSummary, ColorAndFontConstants.errorTitleFont, errorDetailCode
                    .get(task.getReturnCode()), ColorAndFontConstants.defaultFont);
          }
          else if (errorDetail != null)
          {
            summaryMsg =
                Utilities.getFormattedError(errorSummary, ColorAndFontConstants.errorTitleFont, errorDetail,
                    ColorAndFontConstants.defaultFont);
          }
          else
          {
            summaryMsg = null;
          }
        }
        if (summaryMsg != null)
        {
          dialog.setSummary(LocalizableMessage.raw(summaryMsg));
        }
        dialog.setEnabledClose(true);
        dialog.getProgressBar().setVisible(false);
        if (task.getState() == Task.State.FINISHED_SUCCESSFULLY)
        {
          dialog.setTaskIsOver(true);
        }
        task.postOperation();
      }
    };
    info.registerTask(task);
    worker.startBackgroundTask();
  }

  /**
   * Checks that the provided string value is a valid integer and if it is not
   * updates a list of error messages with an error.
   *
   * @param errors
   *          the list of error messages to be updated.
   * @param stringValue
   *          the string value to analyze.
   * @param minValue
   *          the minimum integer value accepted.
   * @param maxValue
   *          the maximum integer value accepted.
   * @param errMsg
   *          the error message to use to update the error list if the provided
   *          value is not valid.
   * @return {@code true} if the provided string value is a valid integer and if
   *         it is not updates a list of error messages with an error.
   */
  protected boolean checkIntValue(final Collection<LocalizableMessage> errors, final String stringValue,
      final int minValue, final int maxValue, final LocalizableMessage errMsg)
  {
    try
    {
      int n = Integer.parseInt(stringValue);
      if (minValue <= n && n <= maxValue)
      {
        return true;
      }
    }
    catch (NumberFormatException ignored)
    {
    }

    errors.add(errMsg);
    return false;
  }

  /**
   * Starts the server. This method will launch a task and open a progress
   * dialog that will start the server. This method must be called from the
   * event thread.
   */
  protected void startServer()
  {
    Set<LocalizableMessage> errors = new LinkedHashSet<>();
    ProgressDialog progressDialog = new ProgressDialog(Utilities.createFrame(), Utilities.getParentDialog(this),
            INFO_CTRL_PANEL_START_SERVER_PROGRESS_DLG_TITLE.get(), getInfo());
    StartServerTask newTask = new StartServerTask(getInfo(), progressDialog);
    for (Task task : getInfo().getTasks())
    {
      task.canLaunch(newTask, errors);
    }
    if (errors.isEmpty())
    {
      launchOperation(newTask,
          INFO_CTRL_PANEL_STARTING_SERVER_SUMMARY.get(),
          INFO_CTRL_PANEL_STARTING_SERVER_SUCCESSFUL_SUMMARY.get(),
          INFO_CTRL_PANEL_STARTING_SERVER_SUCCESSFUL_DETAILS.get(),
          ERR_CTRL_PANEL_STARTING_SERVER_ERROR_SUMMARY.get(), null,
          ERR_CTRL_PANEL_STARTING_SERVER_ERROR_DETAILS, progressDialog);
      progressDialog.setVisible(true);
    }
    else
    {
      displayErrorDialog(errors);
    }
  }

  /**
   * Stops the server. This method will launch a task and open a progress dialog
   * that will stop the server. This method must be called from the event
   * thread.
   */
  protected void stopServer()
  {
    Set<LocalizableMessage> errors = new LinkedHashSet<>();
    ProgressDialog progressDialog = new ProgressDialog(Utilities.createFrame(), Utilities.getParentDialog(this),
            INFO_CTRL_PANEL_STOP_SERVER_PROGRESS_DLG_TITLE.get(), getInfo());
    StopServerTask newTask = new StopServerTask(getInfo(), progressDialog);
    for (Task task : getInfo().getTasks())
    {
      task.canLaunch(newTask, errors);
    }
    boolean confirmed = true;
    if (errors.isEmpty())
    {
      confirmed = displayConfirmationDialog(INFO_CTRL_PANEL_CONFIRMATION_REQUIRED_SUMMARY.get(),
                                            INFO_CTRL_PANEL_CONFIRM_STOP_SERVER_DETAILS.get());
    }
    if (errors.isEmpty() && confirmed)
    {
      launchOperation(newTask,
          INFO_CTRL_PANEL_STOPPING_SERVER_SUMMARY.get(),
          INFO_CTRL_PANEL_STOPPING_SERVER_SUCCESSFUL_SUMMARY.get(),
          INFO_CTRL_PANEL_STOPPING_SERVER_SUCCESSFUL_DETAILS.get(),
          ERR_CTRL_PANEL_STOPPING_SERVER_ERROR_SUMMARY.get(), null,
          ERR_CTRL_PANEL_STOPPING_SERVER_ERROR_DETAILS, progressDialog);
      progressDialog.setVisible(true);
    }
    if (!errors.isEmpty())
    {
      displayErrorDialog(errors);
    }
  }

  /**
   * Restarts the server. This method will launch a task and open a progress
   * dialog that will restart the server. This method must be called from the
   * event thread.
   */
  protected void restartServer()
  {
    Set<LocalizableMessage> errors = new LinkedHashSet<>();
    ProgressDialog progressDialog = new ProgressDialog(Utilities.createFrame(), Utilities.getParentDialog(this),
            INFO_CTRL_PANEL_RESTART_SERVER_PROGRESS_DLG_TITLE.get(), getInfo());
    RestartServerTask newTask = new RestartServerTask(getInfo(), progressDialog);
    for (Task task : getInfo().getTasks())
    {
      task.canLaunch(newTask, errors);
    }
    boolean confirmed = true;
    if (errors.isEmpty())
    {
      confirmed = displayConfirmationDialog(INFO_CTRL_PANEL_CONFIRMATION_REQUIRED_SUMMARY.get(),
                                            INFO_CTRL_PANEL_CONFIRM_RESTART_SERVER_DETAILS.get());
    }
    if (errors.isEmpty() && confirmed)
    {
      launchOperation(newTask,
          INFO_CTRL_PANEL_STOPPING_SERVER_SUMMARY.get(),
          INFO_CTRL_PANEL_RESTARTING_SERVER_SUCCESSFUL_SUMMARY.get(),
          INFO_CTRL_PANEL_RESTARTING_SERVER_SUCCESSFUL_DETAILS.get(),
          ERR_CTRL_PANEL_RESTARTING_SERVER_ERROR_SUMMARY.get(), null,
          ERR_CTRL_PANEL_RESTARTING_SERVER_ERROR_DETAILS, progressDialog);
      progressDialog.setVisible(true);
    }
    if (!errors.isEmpty())
    {
      displayErrorDialog(errors);
    }
  }

  /**
   * Displays a dialog asking for authentication. This method must be called
   * from the event thread.
   */
  private void authenticate()
  {
    if (!getLoginDialog().isVisible())
    {
      getLoginDialog().setVisible(true);
    }
    getLoginDialog().toFront();
  }

  /**
   * Returns the login dialog that is displayed when the method authenticate is
   * called.
   *
   * @return the login dialog that is displayed when the method authenticate is
   *         called.
   */
  protected GenericDialog getLoginDialog()
  {
    GenericDialog dialog = isLocal() ? getLocalServerLoginDialog(getInfo()) : getLocalOrRemoteDialog(getInfo());
    Utilities.centerGoldenMean(dialog, Utilities.getFrame(this));
    dialog.setModal(true);
    return dialog;
  }

  /**
   * Tells whether an entry exists or not. Actually it tells if we could find a
   * given entry or not.
   *
   * @param dn
   *          the DN of the entry to look for.
   * @return <CODE>true</CODE> if the entry with the provided DN could be found
   *         and <CODE>false</CODE> otherwise.
   */
  protected boolean entryExists(final String dn)
  {
    boolean entryExists = false;
    try
    {
      SearchControls ctls = new SearchControls();
      ctls.setSearchScope(SearchControls.OBJECT_SCOPE);
      ctls.setReturningAttributes(new String[] { SchemaConstants.NO_ATTRIBUTES });
      String filter = BrowserController.ALL_OBJECTS_FILTER;
      NamingEnumeration<SearchResult> result =
          getInfo().getDirContext().search(Utilities.getJNDIName(dn), filter, ctls);

      try
      {
        while (result.hasMore())
        {
          SearchResult sr = result.next();
          entryExists = sr != null;
        }
      }
      finally
      {
        result.close();
      }
    }
    catch (Throwable t)
    {
    }
    return entryExists;
  }

  /**
   * Tells whether a given entry exists and contains one of the specified object
   * classes.
   *
   * @param dn
   *          the DN of the entry.
   * @param objectClasses
   *          the object classes to check.
   * @return <CODE>true</CODE> if the entry exists and contains one of the
   *         specified object classes and <CODE>false</CODE> otherwise.
   */
  protected boolean hasObjectClass(final String dn, final String... objectClasses)
  {
    try
    {
      SearchControls ctls = new SearchControls();
      ctls.setSearchScope(SearchControls.OBJECT_SCOPE);
      ctls.setReturningAttributes(new String[] { ServerConstants.OBJECTCLASS_ATTRIBUTE_TYPE_NAME });
      String filter = BrowserController.ALL_OBJECTS_FILTER;
      NamingEnumeration<SearchResult> result =
          getInfo().getDirContext().search(Utilities.getJNDIName(dn), filter, ctls);

      try
      {
        while (result.hasMore())
        {
          SearchResult sr = result.next();
          Set<String> values = ConnectionUtils.getValues(sr, ServerConstants.OBJECTCLASS_ATTRIBUTE_TYPE_NAME);
          if (values != null)
          {
            for (String s : values)
            {
              for (String objectClass : objectClasses)
              {
                if (s.equalsIgnoreCase(objectClass))
                {
                  return true;
                }
              }
            }
          }
        }
      }
      finally
      {
        result.close();
      }
    }
    catch (Throwable t)
    {
    }
    return false;
  }

  /**
   * Returns the border to be used in the right panel of the dialog with a tree
   * on the left (for instance the schema browser, entry browser and index
   * browser).
   *
   * @return the border to be used in the right panel.
   */
  protected Border getRightPanelBorder()
  {
    return ColorAndFontConstants.textAreaBorder;
  }

  /**
   * Returns the monitoring value in a String form to be displayed to the user.
   *
   * @param attr
   *          the attribute to analyze.
   * @param monitoringEntry
   *          the monitoring entry.
   * @return the monitoring value in a String form to be displayed to the user.
   */
  public static String getMonitoringValue(final MonitoringAttributes attr, final CustomSearchResult monitoringEntry)
  {
    return Utilities.getMonitoringValue(attr, monitoringEntry);
  }

  /**
   * Updates the monitoring information writing it to a list of labels.
   *
   * @param monitoringAttrs
   *          the monitoring operations whose information we want to update.
   * @param monitoringLabels
   *          the monitoring labels to be updated.
   * @param monitoringEntry
   *          the monitoring entry containing the information to be displayed.
   */
  protected void updateMonitoringInfo(final List<MonitoringAttributes> monitoringAttrs,
      final List<JLabel> monitoringLabels, final CustomSearchResult monitoringEntry)
  {
    for (int i = 0; i < monitoringAttrs.size(); i++)
    {
      String value = getMonitoringValue(monitoringAttrs.get(i), monitoringEntry);
      JLabel l = monitoringLabels.get(i);
      l.setText(value);
    }
  }

  /**
   * Returns the label to be used in panels (with ':') based on the definition
   * of the monitoring attribute.
   *
   * @param attr
   *          the monitoring attribute.
   * @return the label to be used in panels (with ':') based on the definition
   *         of the monitoring attribute.
   */
  protected static LocalizableMessage getLabel(final MonitoringAttributes attr)
  {
    return INFO_CTRL_PANEL_OPERATION_NAME_AS_LABEL.get(attr.getMessage());
  }

  /**
   * Returns the command-line arguments associated with the provided schedule.
   *
   * @param schedule
   *          the schedule.
   * @return the command-line arguments associated with the provided schedule.
   */
  protected List<String> getScheduleArgs(final ScheduleType schedule)
  {
    List<String> args = new ArrayList<>(2);
    switch (schedule.getType())
    {
    case LAUNCH_LATER:
      args.add("--start");
      args.add(getStartTimeForTask(schedule.getLaunchLaterDate()));
      break;
    case LAUNCH_PERIODICALLY:
      args.add("--recurringTask");
      args.add(schedule.getCronValue());
      break;
    }
    return args;
  }

  /**
   * Checks whether the server is running or not and depending on the schedule
   * updates the list of errors with the errors found.
   *
   * @param schedule
   *          the schedule.
   * @param errors
   *          the list of errors.
   * @param label
   *          the label to be marked as invalid if errors where encountered.
   */
  protected void addScheduleErrors(final ScheduleType schedule, final Collection<LocalizableMessage> errors,
      final JLabel label)
  {
    if (!isServerRunning())
    {
      ScheduleType.Type type = schedule.getType();
      if (type == ScheduleType.Type.LAUNCH_LATER)
      {
        errors.add(ERR_CTRL_PANEL_LAUNCH_LATER_REQUIRES_SERVER_RUNNING.get());
        setPrimaryInvalid(label);
      }
      else if (type == ScheduleType.Type.LAUNCH_PERIODICALLY)
      {
        errors.add(ERR_CTRL_PANEL_LAUNCH_SCHEDULE_REQUIRES_SERVER_RUNNING.get());
        setPrimaryInvalid(label);
      }
    }
  }

  private String getStartTimeForTask(final Date date)
  {
    return taskDateFormat.format(date);
  }

  /**
   * Checks whether the provided superior object classes are compatible with the
   * provided object class type. If not, the method updates the provided list of
   * error messages with a message describing the incompatibility.
   *
   * @param objectClassSuperiors
   *          the superior object classes.
   * @param objectClassType
   *          the object class type.
   * @param errors
   *          the list of error messages.
   */
  protected void checkCompatibleSuperiors(final Set<ObjectClass> objectClassSuperiors,
      final ObjectClassType objectClassType, final List<LocalizableMessage> errors)
  {
    SortedSet<String> notCompatibleClasses = new TreeSet<>(new LowerCaseComparator());
    for (ObjectClass oc : objectClassSuperiors)
    {
      if (oc.getObjectClassType() == ObjectClassType.ABSTRACT)
      {
        // Nothing to do.
      }
      else if (oc.getObjectClassType() != objectClassType)
      {
        notCompatibleClasses.add(oc.getNameOrOID());
      }
    }
    if (!notCompatibleClasses.isEmpty())
    {
      String arg = Utilities.getStringFromCollection(notCompatibleClasses, ", ");
      if (objectClassType == ObjectClassType.STRUCTURAL)
      {
        errors.add(ERR_CTRL_PANEL_INCOMPATIBLE_SUPERIORS_WITH_STRUCTURAL.get(arg));
      }
      else if (objectClassType == ObjectClassType.AUXILIARY)
      {
        errors.add(ERR_CTRL_PANEL_INCOMPATIBLE_SUPERIORS_WITH_AUXILIARY.get(arg));
      }
      else if (objectClassType == ObjectClassType.ABSTRACT)
      {
        errors.add(ERR_CTRL_PANEL_INCOMPATIBLE_SUPERIORS_WITH_ABSTRACT.get(arg));
      }
    }
  }
}
