entrylocator.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.
*/
package issrg.pba.repository;

import issrg.utils.repository.Entry;
import issrg.utils.repository.TokenLocator;


/**
 * This class is the default implementation of the TokenLocator. The get* 
 * methods simply return the corresponding values passed to the constructor.
 */
public class EntryLocator implements TokenLocator {
  protected Entry e;
  protected java.security.Principal p;
  protected TokenLocator a;
  protected issrg.utils.repository.AttributeRepository ar;

  /**
   * This constructor builds a EntryLocator using the given Entry, Principal
   * of the TokenLocator, the repository in which this token locator makes sense,
   * and the alternative locator.
   *
   * @param entry - the Entry that this token locator refers to; used for Domain 
   *    matching
   * @param locator - the Principal that helps find the tokens in the provided
   *    repository
   * @param rep - the AttributeRepository from which the Authorization Tokens 
   *    can
   *    be retrieved; can be null to imply that the tokens are available from
   *    a default location
   * @param alternative - the alternative TokenLocator, where additional 
   *    Authorization 
   *    Tokens can be found; can be null
   */
  public EntryLocator(Entry entry, java.security.Principal locator, issrg.utils.repository.AttributeRepository rep, TokenLocator alternative){
    e=entry;
    p=locator;
    a=alternative;
    ar=rep;
  }

  public Entry getEntry(){
    return e;
  }

  public java.security.Principal getLocator(){
    return p;
  }

  public issrg.utils.repository.AttributeRepository getRepository(){
    return ar;
  }

  public TokenLocator getAlternativeLocator(){
    return a;
  }
}