operatorcombobox.java

一个完整的XACML工程,学习XACML技术的好例子!

/*
* Copyright (c) 2006, University of Kent
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without 
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this 
* list of conditions and the following disclaimer.
* 
* 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. 
*
* 1. Neither the name of the University of Kent nor the names of its 
* contributors may be used to endorse or promote products derived from this 
* software without specific prior written permission. 
*
* 2. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS  
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
* PURPOSE ARE DISCLAIMED. 
*
* 3. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
* LIABLE FOR ANY DIRECT, 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.
*
* 4. YOU AGREE THAT THE EXCLUSIONS IN PARAGRAPHS 2 AND 3 ABOVE ARE REASONABLE
* IN THE CIRCUMSTANCES.  IN PARTICULAR, YOU ACKNOWLEDGE (1) THAT THIS
* SOFTWARE HAS BEEN MADE AVAILABLE TO YOU FREE OF CHARGE, (2) THAT THIS
* SOFTWARE IS NOT "PRODUCT" QUALITY, BUT HAS BEEN PRODUCED BY A RESEARCH
* GROUP WHO DESIRE TO MAKE THIS SOFTWARE FREELY AVAILABLE TO PEOPLE WHO WISH
* TO USE IT, AND (3) THAT BECAUSE THIS SOFTWARE IS NOT OF "PRODUCT" QUALITY
* IT IS INEVITABLE THAT THERE WILL BE BUGS AND ERRORS, AND POSSIBLY MORE
* SERIOUS FAULTS, IN THIS SOFTWARE.
*
* 5. This license is governed, except to the extent that local laws
* necessarily apply, by the laws of England and Wales.
*/

/*
 * OperatorComboBox.java - 19/06/06
 */
package issrg.editor2.ifcondition;

import issrg.utils.xml.XMLEditor;
import java.util.Comparator;
import java.util.Hashtable;
import java.util.ResourceBundle;
import java.util.Vector;
import javax.swing.JComboBox;

/**
 * Class that creates a drop down list with the operators that concern
 * the given Variable Type. 
 *
 * @author Christian Azzopardi
 */
public class OperatorComboBox extends JComboBox implements Comparator
{  
    ResourceBundle rbl = ResourceBundle.getBundle("issrg/editor2/PEIFConditions_i18n");
    
    /** 
     * Creates a new instance of OperatorComboBox.
     *
     * @param xmlED         The XMLEditor to verify that it is not null.         
     * @param type          The Variable type that is used as the key to the
     *                      following hashtable.
     * @param varTypeLinks  A hashtable that contains the variable type as its 
     *                      keys, and a corresponding vector containing the 
     *                      possible operations that can be done on the particular
     *                      variable type.
     */
    public OperatorComboBox(XMLEditor xmlED, String type, Hashtable varTypeLinks) 
    {
        if (xmlED.DOM == null) return;     
        
        if (type == null)
        {
            return;
        }
        //String
        else if (type.intern().equalsIgnoreCase(rbl.getString("type3")))
        {
            Vector tmpItems = (Vector)varTypeLinks.get(type);
            for (int y = 0; y < tmpItems.size(); y++)
            {
                String tmpString[] = ((String[])tmpItems.get(y));
                this.addItem(tmpString[0]);
            }
        }
        //Integer
        else if (type.intern().equalsIgnoreCase(rbl.getString("type4")))
        {
            Vector tmpItems = (Vector)varTypeLinks.get(type);
            for (int y = 0; y < tmpItems.size(); y++)
            {
                String tmpString[] = ((String[])tmpItems.get(y));
                this.addItem(tmpString[0]);
            }
        }   
        //Time Of Day
        else if (type.intern().equalsIgnoreCase(rbl.getString("type1")))
        {
            Vector tmpItems = (Vector)varTypeLinks.get(type);
            for (int y = 0; y < tmpItems.size(); y++)
            {
                String tmpString[] = ((String[])tmpItems.get(y));
                this.addItem(tmpString[0]);
            }
        }   
        //Time Duration
        else if (type.intern().equalsIgnoreCase(rbl.getString("type9")))
        {
            Vector tmpItems = (Vector)varTypeLinks.get(type);
            for (int y = 0; y < tmpItems.size(); y++)
            {
                String tmpString[] = ((String[])tmpItems.get(y));
                this.addItem(tmpString[0]);
            }
        }   
        //Date
        else if (type.intern().equalsIgnoreCase(rbl.getString("type2")))
        {
            Vector tmpItems = (Vector)varTypeLinks.get(type);
            for (int y = 0; y < tmpItems.size(); y++)
            {
                String tmpString[] = ((String[])tmpItems.get(y));
                this.addItem(tmpString[0]);
            }
        }   
        //Boolean
        else if (type.intern().equalsIgnoreCase(rbl.getString("type6")))
        {
            Vector tmpItems = (Vector)varTypeLinks.get(type);
            for (int y = 0; y < tmpItems.size(); y++)
            {
                String tmpString[] = ((String[])tmpItems.get(y));
                this.addItem(tmpString[0]);
            }
        }   
        //Real
        else if (type.intern().equalsIgnoreCase(rbl.getString("type5")))
        {
            Vector tmpItems = (Vector)varTypeLinks.get(type);
            for (int y = 0; y < tmpItems.size(); y++)
            {
                String tmpString[] = ((String[])tmpItems.get(y));
                this.addItem(tmpString[0]);
            }
        }   
        //Date/Time
        else if (type.intern().equalsIgnoreCase(rbl.getString("type7")))
        {
            Vector tmpItems = (Vector)varTypeLinks.get(type);
            for (int y = 0; y < tmpItems.size(); y++)
            {
                String tmpString[] = ((String[])tmpItems.get(y));
                this.addItem(tmpString[0]);
            }
        }   
        setFocusable(false);
    }
    
    /**
     * Interface method, to compare strings ignoring the case..
     * Not Used yet, but may be used to sort the list in alphabetical order.
     */
    public int compare(Object o1, Object o2)
    {
        return ((String)o1).compareToIgnoreCase(((String)o2));
    }        
}