/*
 * @(#)SampleAction.java	1.4 00/01/11
 *
 * Copyright 2000-01 Sun Microsystems, Inc. All rights reserved.
 * Copyright 2000-01 Sun Microsystems, Inc. Tous droits reserves.
 */

package sample;

import java.io.File;
import java.security.PrivilegedAction;

/**
 * <p> This is a Sample PrivilegedAction implementation, designed to be
 * used with the Sample application.
 *
 * @version 1.4, 01/11/00
 */
public class SampleAction implements PrivilegedAction {

    /**
     * <p> This Sample PrivilegedAction performs the following operations:
     * <ul>
     * <li> Access the System property, <i>java.home</i>
     * <li> Access the System property, <i>user.home</i>
     * <li> Access the file, <i>foo.txt</i>
     * </ul>
     *
     * @return <code>null</code> in all cases.
     *
     * @exception SecurityException if the caller does not have permission
     *		to perform the operations listed above.
     */
    public Object run() {
	System.out.println("\nYour java.home property: "
			    +System.getProperty("java.home"));

	System.out.println("\nYour user.home property: "
			    +System.getProperty("user.home"));

	File f = new File("foo.txt");
	System.out.print("\nfoo.txt does ");
	if (!f.exists())
	    System.out.print("not ");
	System.out.println("exist in the current working directory.");
	return null;
    }
}