admintablemodel.java

SIP（Session Initiation Protocol）是由IETF定义

/*
 * ====================================================================
 * 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
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 * 
 * 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].
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 * 4. Products derived from this software may not be called "VOCAL", nor
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 * 
 * 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
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package vocal.pw;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import javax.swing.table.AbstractTableModel;
import java.util.Vector;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import java.io.IOException;
import java.io.StringReader;

import org.xml.sax.SAXException;


public class AdminTableModel extends AbstractTableModel
{
  private Vector data;

  public static final int LOGIN_ID = 0;
  public static final int ADMIN_ACCESS = 1;
  public static final int TECH_ACCESS = 2;
  public static final int PASSWORD = 3;

  public static final int MAX_ID = PASSWORD;
    
  private DocumentBuilder parser;

  private static final String[] columnNames = new String[]
  {
    "Login id", "Admin access", "Tech access"
  };


  public AdminTableModel()
  {
    data = new Vector();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    try
    {
      parser = dbf.newDocumentBuilder();
    }
    catch (ParserConfigurationException e)
    {
      e.printStackTrace();
    }
  }


  /**
   * Takes a string xml representation of an administrator account and coverts
   * to a vector. Calls the <code>convertAdminToVector (Document)</code> method
   * to perform the conversion.<p>
   * @see Vector convertAdminToVector (Document) convertAdminToVector
   */
  public Vector convertAdminToVector(String xml) 
    throws IOException, SAXException
  {
    Document dom = parser.parse(new InputSource(new StringReader(xml)));

    return convertAdminToVector(dom);
  }


  /**
   * Takes a dom representation of an administrator account xml file and
   * converts the contents into a vector. <p>
   * The elements in the vector are LOGIN_ID, ADMIN_ACCESS, TECH_ACCESS, and
   * PASSWORD as defined by the identifiers in this file. The values are gotten
   * by searching the dom.
   * @param the account dom
   * @return the account vector
   */
  public Vector convertAdminToVector(Document admin)
  {

    // Create a blank vector with enought elements in it to hold all the data
    Vector adminVector = new Vector(MAX_ID);

    for (int i = 0; i <= MAX_ID; i++)
    {
      adminVector.addElement("Not loaded from xml");
    }

    // copy the data from the dom to the vector

    // get the administrator's name/login id
    NodeList ids = admin.getElementsByTagName("name");

    if (ids != null)
    {
      if (ids.getLength() > 0)
      {
        String id = ids.item(0).getFirstChild().getNodeValue();

        adminVector.setElementAt(id, this.LOGIN_ID);
      }
      else
      {
        System.out.println("---ERROR--- parsing admin xml file: no name element");
      }
    }
    else
    {
      System.out.println("---ERROR--- parsing admin xml file: name element is null");
    }

    // get the password
    NodeList pws = admin.getElementsByTagName("password");

    if (pws != null)
    {
      if (pws.getLength() > 0)
      {
        String pw = pws.item(0).getFirstChild().getNodeValue();

        adminVector.setElementAt(pw, this.PASSWORD);
      }
      else
      {
        System.out.println("---ERROR--- parsing admin xml file: no password element");
      }
    }
    else
    {
      System.out.println("---ERROR--- parsing admin xml file: password element is null");
    }

    // get the access levels
    NodeList accessLevels = admin.getElementsByTagName("accessLevel");

    if (accessLevels != null)
    {
      if (accessLevels.getLength() > 0)
      {
        for (int i = 0; i < accessLevels.getLength(); i++)
        {
          String levelName = 
            ((Element) accessLevels.item(i)).getAttribute("type");
          String enabled = 
            ((Element) accessLevels.item(i)).getAttribute("enabled");

          if (levelName.equals("administrator"))
          {
            adminVector.setElementAt(enabled, this.ADMIN_ACCESS);
          }
          else if (levelName.equals("technician"))
          {
            adminVector.setElementAt(enabled, this.TECH_ACCESS);
          }
        }
      }
      else
      {
        System.out.println("---ERROR--- parsing admin xml file: no accessLevel element");
      }
    }
    else
    {
      System.out.println("---ERROR--- parsing admin xml file: accessLevel element is null");
    }

    return adminVector;
  }

  public void addAdmin(Vector admin)
  {
    data.addElement(admin);
  }


  public Object getValueAt(int row, int column)
  {
    Vector admin = (Vector) data.elementAt(row);
    String value = (String) admin.elementAt(column);

    if (value.equalsIgnoreCase("true") || value.equalsIgnoreCase("false"))
    {
      Boolean boolValue = Boolean.valueOf(value);

      return boolValue;
    }

    return admin.elementAt(column);
  }

  public Class getColumnClass(int columnIndex)
  {
    if (data.size() == 0)
    {
      return Object.class;
    }

    Vector admin = (Vector) data.elementAt(0);
    Object dataElement = admin.elementAt(columnIndex);

    if (dataElement.equals("true") || dataElement.equals("false"))
    {
      return Boolean.class;
    }
    else
    {
      return dataElement.getClass();
    }
  }

  public int getRowCount()
  {
    return data.size();
  }

  public int getColumnCount()
  {
    return columnNames.length;
  }

  public String getColumnName(int index)
  {
    return columnNames[index];
  }

  public String deleteAdminAt(int row)
  {
    Vector admin = (Vector) data.elementAt(row);
    String name = (String) admin.elementAt(LOGIN_ID);

    data.remove(row);

    return name;
  }

  public void setValueAt(Object aValue, int rowIndex, int columnIndex)
  {
    Vector admin = (Vector) data.elementAt(rowIndex);

    admin.setElementAt(aValue, columnIndex);
  }

}