aliaspanel.java

这是一个用java和xml编写的流媒体服务器管理软件

/*
 * ====================================================================
 * The Vovida Software License, Version 1.0
 * 
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in
 * the documentation and/or other materials provided with the
 * distribution.
 * 
 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 * and "Vovida Open Communication Application Library (VOCAL)" must
 * not be used to endorse or promote products derived from this
 * software without prior written permission. For written
 * permission, please contact [e-mail].
 * 
 * 4. Products derived from this software may not be called "VOCAL", nor
 * may "VOCAL" appear in their name, without prior written
 * permission of Vovida Networks, Inc.
 * 
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL VOVIDA
 * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
 * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 * 
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
 * <http://www.vovida.org/>.
 * 
 */


/**
 * The component of the user interface which displays aliases. <p>
 * This contains a table with a single column of aliases and a popup menu and
 * assoicated listenera and acctions which may be used to add or remove items
 * in the table.
 */
package vocal.userEditor;


import vocal.comm.VPPNoSuchFileException;

import javax.swing.*;
import javax.swing.border.TitledBorder;
import javax.swing.table.DefaultTableModel;

import java.util.StringTokenizer;
import java.util.Vector;


import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.InputEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;



public class AliasPanel extends JPanel implements DataEditor
{
  private JTable aliasList;
  private DefaultTableModel model;
  private JScrollPane scroller;
  private JPopupMenu menu;
  private PServerInterface psInterface;
  private Vector previousData = new Vector();


  public AliasPanel(PServerInterface con)
  {
    psInterface = con;

    model = new DefaultTableModel(new String[]
    {
      ""
    }, 0);
    aliasList = new JTable(model);

    aliasList.setPreferredScrollableViewportSize(new Dimension(this.getWidth(), 
            50));

    scroller = new JScrollPane(aliasList);

    scroller.setToolTipText("right-click to edit list of your secondary phone numbers");

    setBorder(new TitledBorder("Aliases"));

    this.setLayout(new BorderLayout());
    add(scroller, BorderLayout.CENTER);

    createPopupMenu();
  }

  public void setMode(int newMode)
  {

    // nothing to do so far
  }


  public boolean setData(int id, String data)
  {
    switch (id)
    {

      case UserTableModel.ALIASES:
      {
        StringTokenizer tokenizer = new StringTokenizer(data, ";", false);
        String alias;

        while (tokenizer.hasMoreTokens())
        {
          alias = tokenizer.nextToken();

          model.addRow(new String[]
          {
            alias
          });
        }

        previousData = new Vector();

        for (int i = 0; i < model.getDataVector().size(); i++)
        {
          previousData.addElement(((Vector) model.getDataVector().elementAt(i)).elementAt(0));
        }

        return true;
      }
    }

    return false;
  }

  public String getData(int id)
  {
    switch (id)
    {

      case UserTableModel.ALIASES:
      {

        // if the user did not hit enter in the cell after they typed the alias
        // in, whatever they type in will not be saved unless this method is
        // called.
        if (aliasList.isEditing())
        {
          aliasList.getCellEditor().stopCellEditing();
        }

        Vector newData = new Vector();

        for (int i = 0; i < model.getRowCount(); i++)
        {
          Object newAlias = model.getValueAt(i, 0);

          // don't allow the same alias to be added twice
          // &&
          // don't allow a blank line to be an alias
          if ((!newData.contains(newAlias)) && (!newAlias.equals("")))
          {
            newData.add(model.getValueAt(i, 0));
          }
        }

        // find aliases which have been removed (those that are in the old list
        // but not in the new list)
        for (int i = 0; i < previousData.size(); i++)
        {

          // the alias is on the old list but not the new one -> it has been
          // removed
          if (!newData.contains(previousData.elementAt(i)))
          {
            String alias = (String) previousData.elementAt(i);

            try
            {
              psInterface.deleteAliasFile(alias);
            }
            catch (VPPNoSuchFileException ex)
            {

              // if this, happens there is something pretty odd going on
              ex.printStackTrace();
              JOptionPane.showMessageDialog(AliasPanel.this.getTopLevelAncestor(), 
                      "Could not remove the alias " + alias 
                      + " because it does not exist. \n\n Yeah, I know that's really odd.");
            }
          }
        }

        String aliases = "";

        /**
         * for (int row=0; row<model.getRowCount(); row++)
         * {
         * //if the user put a blank line in the table, don't add this as an
         * //alias
         * if (!model.getValueAt(row,0).equals(""))
         * {
         * aliases += model.getValueAt(row,0) + ";";
         * }
         * }
         */
        for (int i = 0; i < newData.size(); i++)
        {
          aliases += newData.elementAt(i).toString() + ";";
        }

        return aliases;
      }         // end case ALIASES
    }           // end switch

    return null;
  }


  private void createPopupMenu()
  {
    menu = new JPopupMenu();

    AbstractAction action = new AbstractAction("Add")
    {
      public void actionPerformed(ActionEvent e)
      {
        model.insertRow(0, new String[]
        {
          ""
        });
        aliasList.setEditingRow(0);
        model.fireTableDataChanged();
      }

    };

    menu.add(action);

    action = new AbstractAction("Remove")
    {
      public void actionPerformed(ActionEvent e)
      {
        while (aliasList.getSelectedRowCount() > 0)
        {
          int row = aliasList.getSelectedRow();
          String alias = (String) model.getValueAt(row, 0);

          model.removeRow(row);
          aliasList.getSelectionModel().removeIndexInterval(row, row);
        }

        model.fireTableDataChanged();
      }

    };

    menu.add(action);

    class AliasTableListener extends MouseAdapter
    {
      public void mouseReleased(MouseEvent e)
      {
        if ((e.getModifiers() & InputEvent.BUTTON3_MASK) 
            == InputEvent.BUTTON3_MASK)
        {
          AliasPanel.this.menu.show(AliasPanel.this, e.getX(), e.getY());
        }
      }

    }

    AliasTableListener listener = new AliasTableListener();

    aliasList.addMouseListener(listener);
    scroller.addMouseListener(listener);
  }


  public void clear()
  {
    if (aliasList.isEditing())
    {
      aliasList.getCellEditor().cancelCellEditing();
    }

    if (model.getRowCount() > 0)
    {
      int num = model.getRowCount();

      for (int i = 0; i < num; i++)
      {
        model.removeRow(0);
      }
    }
  }


  public boolean isDataValid()
  {
    return true;        // no validating fields avaliable for this component yet
  }

}