taskedit.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/>.
 * 
 */


package vocal.userEditor;

import vocal.util.Task;
import vocal.util.Logger;
import vocal.comm.VPPException;

import java.util.Vector;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.awt.Component;
import javax.swing.SwingUtilities;
import javax.swing.JOptionPane;
import org.xml.sax.SAXException;


public class TaskEdit extends EditorTask
{
  public TaskEdit(Editor editor)
  {
    super(editor);
  }


  public void doWork()
  {
    if (editor.getUserPanel() == null)
    {
      return;
    }

    int[] rows = editor.getTable().getSelectedRows();

    if (rows.length == 0)
    {

      // if there are no selected users, there is nothing to edit
      return;
    }

    editor.getUserPanel().setMode(UserPanel.EDIT_EXISTING_MODE);

    // does nothing for a selected alias because that has lenght > 1 (the
    // isAlias field is ture, and the master user and index are set)
    loadUsers(rows);

    // if single row is selected, get the data for that user and load it into
    // the user panel. Otherwise, the panel should be blank.
    if (rows.length == 1)
    {

      // find out if the selected row contains an alias name or the actual
      // master user
      Vector user = editor.getData().getUserAt(rows[0]);

      if (user.elementAt(UserTableModel.IS_ALIAS).equals("true"))
      {

        // find out the master name this alias belongs to
        String masterName = 
          (String) user.elementAt(UserTableModel.MASTER_NAME);

        // find out the index of the master user for this alias
        String masterIndexStr = 
          (String) user.elementAt(UserTableModel.MASTER_INDEX);
        int masterIndex;

        if (masterIndexStr == null)
        {
          masterIndex = editor.getData().findMasterIndex(masterName);

          try
          {
            editor.getData().setValueAt(masterIndex + "", rows[0], 
                    UserTableModel.MASTER_INDEX);
          }
          catch (SAXException ex)
          {
            ex.printStackTrace();
            JOptionPane.showMessageDialog(editor.getTopLevelAncestor(), 
                    "Could not update the master index for user " 
                    + masterName + " and alias " 
                    + user.elementAt(UserTableModel.USER_NAME) 
                    + " because: \n\n" + ex);
          }
          catch (IOException ex)
          {
            ex.printStackTrace();
            JOptionPane.showMessageDialog(editor.getTopLevelAncestor(), 
                    "Could not update the master index for user " 
                    + masterName + " and alias " 
                    + user.elementAt(UserTableModel.USER_NAME) 
                    + " because: \n\n" + ex);
          }
          catch (VPPException ex)
          {
            ex.printStackTrace();
            JOptionPane.showMessageDialog(editor.getTopLevelAncestor(), 
                    "Could not update the master index for user " 
                    + masterName + " and alias " 
                    + user.elementAt(UserTableModel.USER_NAME) 
                    + " because: \n\n" + ex);
          }
        }
        else
        {
          masterIndex = Integer.parseInt(masterIndexStr);
        }

        // get the user data for the master user
        user = editor.getData().getUserAt(masterIndex);

        // if the user has not been loaded yet, do it
        if (user.size() <= 1)
        {
          try
          {
            user = editor.getData().loadUserAt(masterIndex);
          }
          catch (IOException ex)
          {
            ex.printStackTrace();
            JOptionPane.showMessageDialog(editor.getTopLevelAncestor(), 
                    "Could not load user data for user " + masterName 
                    + " because: \n\n" + ex);
          }
          catch (SAXException ex)
          {
            ex.printStackTrace();
            JOptionPane.showMessageDialog(editor.getTopLevelAncestor(), 
                    "Could not load user data for user " + masterName 
                    + " because: \n\n" + ex);
          }
          catch (VPPException ex)
          {
            ex.printStackTrace();
            JOptionPane.showMessageDialog(editor.getTopLevelAncestor(), 
                    "Could not load user data for user " + masterName 
                    + " because: \n\n" + ex);
          }
        }
      }

      editor.getUserPanel().setUserData(user);

      // Once the data has been loaded, go through all the features and check if
      // each one has a feature server configured. If not, turn off the feature
      // and disable the gui for it.
      Component[] components = editor.getUserPanel().getComponents();

      for (int i = 0; i < components.length; i++)
      {
        if (Feature.class.isInstance(components[i]))
        {
          Feature feature = (Feature) components[i];

          feature.checkFeatureServer();
        }
      }

      // if more than one user was selected previously, the alias panel may
      // have been removed. Call these methods to make shure all the
      // appropriate panels are visible for the single user as selected by
      // the check boxes
      editor.getUserPanel().setShowAdmin(editor.isShowAdminColumnsSelected());
      editor.getUserPanel().setShowUser(editor.isShowUserColumnsSelected());
    }
    else
    {

      // don't want to show the panel which allows to edit aliases when more
      // than one user is selected because the same alias cannot be created
      // for more than one uesr so editing aliases on multiple users at once
      // does not make sense
      editor.getUserPanel().removeAliasPanel();
    }

    try
    {
      SwingUtilities.invokeAndWait(new Runnable()
      {
        public void run()
        {
          editor.showUserEditorDialog();
        }

      });
    }
    catch (InvocationTargetException e)
    {
      e.printStackTrace();
      JOptionPane.showMessageDialog(editor.getTopLevelAncestor(), 
              "Could not edit user because:\n\n" + e);
    }
    catch (InterruptedException e)
    {
      e.printStackTrace();
      JOptionPane.showMessageDialog(editor.getTopLevelAncestor(), 
              "Could not edit user because:\n\n" + e);
    }

    if (editor.getUserPanel().getLastButtonClicked() == UserPanel.BUTTON_OK)
    {
      Vector newData = editor.getUserPanel().getUserData();
      int[] users = editor.getTable().getSelectedRows();

      // for each user
      for (int i = 0; i < users.length; i++)
      {
        String userName = (String) editor.getData().getValueAt(users[i], 
                UserTableModel.USER_NAME);

        // change the data in the userTableModel
        for (int dataId = 0; dataId <= UserTableModel.MAX_COLUMN_ID; dataId++)
        {
          String dataElement = (String) newData.elementAt(dataId);

          if (dataElement != null)
          {
            try
            {

              // if we are editing an alias
              if (editor.getData().getValueAt(users[i], 
                      UserTableModel.IS_ALIAS).equals("true"))
              {
                String masterIndexStr = 
                  (String) editor.getData().getValueAt(users[i], 
                        UserTableModel.MASTER_INDEX);

                userName = (String) editor.getData().getValueAt(users[i], 
                        UserTableModel.MASTER_NAME);

                int index;

                if (masterIndexStr == null)
                {
                  index = editor.getData().findMasterIndex(userName);

                  editor.getData().setValueAt(index + "", users[i], 
                          UserTableModel.MASTER_INDEX);
                }
                else
                {
                  index = 
                    Integer.parseInt((String) editor.getData().getValueAt(users[i], 
                          UserTableModel.MASTER_INDEX));
                }

                users[i] = index;
              }

              editor.getData().setValueAt(dataElement, users[i], dataId);
            }
            catch (Exception ex)
            {
              ex.printStackTrace();
              JOptionPane.showMessageDialog(editor, 
                      "Could not set value for user " + userName 
                      + " because " + ex);
            }
          }
        }

        editor.getData().fireTableDataChanged();

        if (i % 10 == 0)
        {
          Logger.swingLog("Writing back user # " + i + " - " + userName);
        }

        // if an alias was removed (and it was higher in the table than the
        // user being edited) then the row for this user may have changed (if
        // aliases were visible in the table)
        users[i] = editor.getData().findMasterIndex(userName);


        // write back the data to the pserver
        try
        {
          editor.getData().writeBackUserAt(users[i], true, true);
        }
        catch (Exception ex)
        {
          ex.printStackTrace();
          JOptionPane.showMessageDialog(editor, 
                  "Could not write back data for user " 
                  + editor.getData().getValueAt(users[i], UserTableModel.USER_NAME) 
                  + " because " + ex);
        }
      }

      // now that we no longer care about what row the edited user was at, sort
      // the data in the table based on user name. This is done so that if any
      // aliases were added, then end up in the correct place
      editor.getData().sortByUserName();
      editor.getData().fireTableDataChanged();

      Logger.swingLog("Done writing back users");
    }   // end if ok clicked

    // if ok or cancel were clicked, make sure the editor is cleared
    editor.getUserPanel().clear();
  }

}