wmltextvalidator.java

WAP ide 代码

package wapide;

/**
 * Used to validate text to see if it conforms to wml standards.
 * Currently, items checked for include the following:
 *    " : quotation marks.
 *    ' : apostrophes.
 *    < : less than sign
 *    > : greater than sign
 *    = : not supported by all attributes
 */
 /**
 * Copyright:    Copyright (c) 2003
 * @author Mark Busman
 * @version 1.0
 *
 * For License and contact information see WAPIDE.java
 */

import javax.swing.*;
import java.awt.*;
import java.lang.*;
import java.util.*;

public class WMLTextValidator {

  /**
   * Constructor - creates a new WMLTextValidator Object.
   */
  public WMLTextValidator() {

  }

  /**
   * Constructor - creates a new WMLTextValidator Object and checks
   * the text for restricted phrases and characters.  Will display a
   * pop-up message if a restricted character or phrase is found.
   * @param String text - the text to search in.
   * @param Component component - the component being checked, can be null.
   */
  public WMLTextValidator(String text, Component c) {

    boolean found = false;
    String[] check = {"<", ">", "\"", "'", "="};
    for (int x = 0; x < 5; x++) {
      if ((!found) && (text.indexOf(check[x]) > -1))
        found = true;
    }

    if (found) {
      displayWarning(c);
    }
  }

  /**
   * Checks to see if the text contains any characters that are considered
   * restricted by WML rules, such as quotation marks(").
   * @param String text - the text to search in.
   */
  public boolean checkText(String text) {
    boolean found = false;
    try {
      String[] check = {"<", ">", "\"", "'", "="};
      for (int x = 0; x < 5; x++) {
        if ((!found) && (text.indexOf(check[x]) > -1))
          found = true;
      }
    }
    catch (NullPointerException nullerr) {}
    return found;
  }

  /**
   * Checks to see if the text contains any characters that are considered
   * restricted by WML rules, such as quotation marks(").
   * @param String text - the text to search in.
   * @param String[] items - custom items to check.
   */
  public boolean checkText(String text, String[] items) {
    boolean found = false;
    try {
      String[] check = items;
      for (int x = 0; x < 5; x++) {
        if ((!found) && (text.indexOf(check[x]) > -1))
          found = true;
      }
    }
    catch (NullPointerException nullerr) {}
    return found;
  }

  /**
   * Displays a dialog with a default warning message.
   * The message reads as follows:
   * "One or more field(s) have one or more reserved character(s),
   * be sure the following characters are not used:
   *   <, >, ", ', and = (not supported by all attributes)
   * See the WAP Developer's Manual for further information."
   * @param Component component - the Component requesting the display of the dialog, can be null.
   */
  public void displayWarning(Component c) {
    String title = "Warning: Illegal use of reserved characters";
      int messageType = JOptionPane.WARNING_MESSAGE;
      int optionType = JOptionPane.DEFAULT_OPTION;
      String message = "One or more fields have one or more reserved character(s),\n";
      message = message + "be sure the following characters are not used:\n";
      message = message + "  <, >, \", ', = (not supported by all attributes)";
      message = message + "\n\nSee the WAP Developer's Manual for further information.";
      JOptionPane pane = new JOptionPane(message, messageType, optionType);
      JDialog dlg = pane.createDialog(c, title);
      dlg.show();
  }

  /**
   * Displays a warning dialog with a custom message.
   * @param Component component - the Component requesting the display of the dialog, can be null.
   * @param String message - the warning message to display in the dialog.
   */
  public void displayWarning(Component c, String message) {
    String title = "Warning: Illegal use of reserved characters";
      int messageType = JOptionPane.WARNING_MESSAGE;
      int optionType = JOptionPane.DEFAULT_OPTION;
      JOptionPane pane = new JOptionPane(message, messageType, optionType);
      JDialog dlg = pane.createDialog(c, title);
      dlg.show();
  }

  //public static void main(String[] args) {
  //  WMLTextValidator WMLTextValidator1 = new WMLTextValidator("test of try", null);
  //}
}