ptbclock.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.
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* contributors may be used to endorse or promote products derived from this 
* software without specific prior written permission. 
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* 2. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS  
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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*/
package issrg.test.ptb;

import issrg.pba.rbac.Clock;

import java.text.ParseException;

/**
 * This class is the adapted implementation of the Clock interface for the Permis Test Bench. It
 * has a method to specify a particular date to be returned. In this way, we are able to
 * change the date used to perform the decisions.
 */

public class PTBClock extends Clock {
    private java.util.Date lastTime = null;

    public PTBClock() {
        lastTime = new java.util.Date();
    }

    public java.util.Date getTime() {
        return (lastTime == null) ? latch() : lastTime;
    }

    public java.util.Date latch() {
        return lastTime;
    }

    public boolean setTime(String s) {
        try {
            java.util.Date date1;
            date1 = new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(s);
            lastTime = date1;
            return true;
        } catch (ParseException e) {
            e.printStackTrace();
            return false;
        }
    }

}