policyscreen.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/>.
 * 
 */

/**
 * Title:        <p>
 * Description:  <p>
 * Copyright:    Copyright (c) <p>
 * Company:      <p>
 * @author
 * @version 1.0
 */
package vocal.ui;

import java.awt.*;
import javax.swing.*;
import java.awt.event.ActionEvent;
import vocal.data.PDPData;
import vocal.data.InvalidRequestException;
import vocal.data.ConfigTree;


/**
 * $RCSfile: PolicyScreen.java,v $
 * 
 * @author $Author: bsamson $, $Date: 2001/05/18 23:17:07 $
 * @version $Revision: 1.16 $
 */
public class PolicyScreen extends FormPanelScreen
{
  JPanel jPanel1 = new JPanel();
  JScrollPane jScrollPane1 = new JScrollPane();
  JPanel jPanel2 = new JPanel();
  LabelFieldPanel labelFieldPanel1 = new LabelFieldPanel();
  JLabel hostNameLabel = new JLabel();
  HostNameField hostNameTextField = new HostNameField("Host Name");
  JLabel portLabel = new JLabel();
  WholeNumberField portTextField = new WholeNumberField("Port");
  BorderLayout borderLayout2 = new BorderLayout();
  BorderLayout borderLayout1 = new BorderLayout();
  ConfigTree configTree1;
  PDPData dataManager;
  ConfigureServers mainScreen;

  JPanel jPanel3 = new JPanel();
  FlowLayout flowLayout1 = new FlowLayout();
  JPanel jPanel4 = new JPanel();
  BorderLayout borderLayout4 = new BorderLayout();
  FlowLayout flowLayout2 = new FlowLayout();
  Box box1;
  JPanel jPanel5 = new JPanel();
  JLabel serverNameLabel = new JLabel();
  JLabel maxThreadsLabel = new JLabel();
  WholeNumberField maxThreadsField = new WholeNumberField("Max Threads");
  JLabel keepAliveTimerLabel = new JLabel();
  WholeNumberField keepAliveTimerField = 
    new WholeNumberField("Keep Alive Time");
  JLabel responseTimeLabel = new JLabel();
  WholeNumberField responseTimeField = new WholeNumberField("Response Time");
  private JLabel groupDescriptionLabel = new JLabel();
  private JLabel groupLabel = new JLabel();
  private FlowLayout flowLayout3 = new FlowLayout();

  /**
   * 
   * @param screen
   */
  public PolicyScreen(ConfigureServers screen)
  {
    mainScreen = screen;

    try
    {
      jbInit();
    }
    catch (Exception e)
    {
      e.printStackTrace();
    }
  }


  /**
   * 
   * @throws Exception
   */
  private void jbInit() throws Exception
  {

    box1 = Box.createVerticalBox();

    this.setLayout(borderLayout2);
    jPanel1.setLayout(borderLayout1);
    labelFieldPanel1.setPreferredSize(new Dimension(300, 200));
    labelFieldPanel1.setHorizontalGap(30);
    labelFieldPanel1.setVerticalGap(20);
    hostNameLabel.setForeground(Color.black);
    hostNameLabel.setText("Host Name:");
    portLabel.setForeground(Color.black);
    portLabel.setText("Port:");
    jPanel2.setLayout(borderLayout4);
    jPanel3.setLayout(flowLayout1);
    jPanel4.setBorder(BorderFactory.createEmptyBorder(20, 0, 0, 0));
    jPanel4.setLayout(flowLayout2);
    flowLayout1.setVgap(0);
    hostNameTextField.setToolTipText("IP address of this Policy server");
    portTextField.setToolTipText("port number of this Policy server");
    serverNameLabel.setForeground(Color.black);
    serverNameLabel.setHorizontalAlignment(SwingConstants.CENTER);
    serverNameLabel.setText("Policy Server ");
    maxThreadsLabel.setForeground(Color.black);
    maxThreadsLabel.setText("Max Threads:");
    keepAliveTimerLabel.setForeground(Color.black);
    keepAliveTimerLabel.setText("Keep Alive Time (s):");
    responseTimeLabel.setForeground(Color.black);
    responseTimeLabel.setText("Response Time (ms):");
    groupDescriptionLabel.setForeground(Color.black);
    groupDescriptionLabel.setText("Group:");
    groupLabel.setForeground(Color.black);
    groupLabel.setText("Unknown");
    jPanel5.setLayout(flowLayout3);
    flowLayout2.setVgap(20);
    maxThreadsField.setToolTipText("maximum number of connections permitted");
    keepAliveTimerField.setToolTipText("amount of time to maintain the TCP/IP connection");
    responseTimeField.setToolTipText("time for PEP client to wait for a response from PDP");
    this.add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jScrollPane1, BorderLayout.CENTER);
    jScrollPane1.getViewport().add(jPanel2, null);
    jPanel2.add(jPanel3, BorderLayout.CENTER);
    jPanel3.add(labelFieldPanel1, null);
    labelFieldPanel1.add(groupDescriptionLabel, null);
    labelFieldPanel1.add(groupLabel, null);
    labelFieldPanel1.add(hostNameLabel, null);
    labelFieldPanel1.add(hostNameTextField, null);
    labelFieldPanel1.add(portLabel, null);
    labelFieldPanel1.add(portTextField, null);
    labelFieldPanel1.add(maxThreadsLabel, null);
    labelFieldPanel1.add(maxThreadsField, null);
    labelFieldPanel1.add(keepAliveTimerLabel, null);
    labelFieldPanel1.add(keepAliveTimerField, null);
    labelFieldPanel1.add(responseTimeLabel, null);
    labelFieldPanel1.add(responseTimeField, null);
    jPanel2.add(jPanel4, BorderLayout.NORTH);
    jPanel4.add(box1, null);
    box1.add(jPanel5, null);
    jPanel5.add(serverNameLabel, null);

    configTree1 = mainScreen.getConfigTree();

  }


  /**
   */
  public void displayData()
  {
    if (dataManager != null)
    {
      try
      {
        groupLabel.setText(dataManager.getGroupData());
        hostNameTextField.setText(dataManager.getHostData());
        portTextField.setText(dataManager.getPortData());
        keepAliveTimerField.setText(dataManager.getKeepAliveTimerData());
        maxThreadsField.setText(dataManager.getMaxThreadsData());
        responseTimeField.setText(dataManager.getResponseTimeData());

        toValidate.clear();
        toValidate.add(hostNameTextField);
        toValidate.add(portTextField);
        toValidate.add(maxThreadsField);
        toValidate.add(keepAliveTimerField);
        toValidate.add(responseTimeField);

      }
      catch (InvalidRequestException e)
      {
        e.printStackTrace();
      }
    }
  }

  /**
   */
  public void getData()
    throws InvalidRequestException
  {
    if (dataManager != null)
    {
        dataManager.setHostData(hostNameTextField.getText());
        dataManager.setKeepAliveTimerData(keepAliveTimerField.getText());
        dataManager.setMaxThreadsData(maxThreadsField.getText());
        dataManager.setResponseTimeData(responseTimeField.getText());
    }
  }

  /**
   */
  public void activate()
  {
    dataManager = configTree1.getPDPData();

    displayData();

    // changing host and port changes the filename
    hostNameTextField.setEnabled(false);
    portTextField.setEnabled(false);
  }

  /**
   */
  public void activateNew()
  {
    dataManager = configTree1.getNewPDPData();

    hostNameTextField.setEnabled(true);
    portTextField.setEnabled(true);
    displayData();
  }

  // Action Listener

  /**
   * 
   * @param ev
   */
  public void actionPerformed(ActionEvent ev)
  {

    if (ev.getSource() == mainScreen.getOkButton())
    {

      if (!checkValidated())
      {
        return;
      }

      try
      {
        getData();
      }
      catch(InvalidRequestException e)
      {
        return;
      }

      if (dataManager != null)
      {
        try
        {
          System.out.println("saving data");

          dataManager.saveData();
        }
        catch (InvalidRequestException e) {}
      }

      dataManager = configTree1.getPDPData();

      mainScreen.enableTree();
    }

  }


  public int confirmDelete()
  {
    return JOptionPane.showConfirmDialog(this, 
            new String("Are you sure you want to delete this Policy Server?"), 
            "Delete Policy Server Screen", JOptionPane.YES_NO_OPTION, 
            JOptionPane.WARNING_MESSAGE);
  }

}