ldapanddisksavingutility.java

一个完整的XACML工程,学习XACML技术的好例子!

/*
* Copyright (c) 2000-2005, University of Salford
* 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. 
*
* Neither the name of the University of Salford nor the names of its 
* contributors may be used to endorse or promote products derived from this 
* software without specific prior written permission. 
*
* 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. 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 
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
* POSSIBILITY OF SUCH DAMAGE.
*/

package issrg.pa.extensions;

import issrg.pa.extensions.LDAPSavingUtility;
import issrg.pa.DiskSavingUtility;
import issrg.pa.SavingUtility;

/**
 * This class does nothing, but displays a choice to save/load ACs to disk or
 * to LDAP. This allows you to load an AC from disk and save it to the LDAP, and
 * vice versa.
 *
 * @author A.Otenko
 * @version 1.0
 */

public class LDAPandDiskSavingUtility extends issrg.pa.SavingUtility{

  /**
   * This is a link to a DiskSavingUtility.
   */
  protected DiskSavingUtility disk=new DiskSavingUtility();

  /**
   * This is a link to an LDAPSavingUtility.
   */
  protected LDAPSavingUtility ldap=new LDAPSavingUtility();

  protected issrg.pa.SavingUtility [] utilList = new issrg.pa.SavingUtility[]{disk, ldap};

  public LDAPandDiskSavingUtility() {
  }

  public void save(java.awt.Frame frame, byte [] ac, java.util.Map Environment) throws issrg.pa.ACCreationException{
    SavingUtility s = pick(utilList, frame, Environment);

    if (s!=null) s.save(frame, ac, Environment);
  }

  public issrg.ac.AttributeCertificate load(java.awt.Frame frame, java.util.Map Environment) throws issrg.pa.ACCreationException{
    SavingUtility s = pick(utilList, frame, Environment);

    if (s!=null) return s.load(frame, Environment);

    return null;
  }

  protected issrg.pa.SavingUtility pick(issrg.pa.SavingUtility [] utils,
                          java.awt.Frame frame, java.util.Map Environment){
    Object [] ops = new Object[utils.length];
    for (int i=0; i<ops.length; i++){
      ops[i]=utils[i].getClass().getName();
    }


    int i=javax.swing.JOptionPane.showOptionDialog(frame, "Choose what you want to operate on:",
            "Choose", javax.swing.JOptionPane.DEFAULT_OPTION, javax.swing.JOptionPane.INFORMATION_MESSAGE,
            null, ops, null);

    if (i<0 || i>=utils.length){
      return null;
    }

    return utils[i];
  }
}