Java.util.PropertyPermission.implies() 方法

package com.codingdict;

import java.util.PropertyPermission;

public class PropertyPermissionDemo {
   private static PropertyPermission permission;

   public static void main(String[] args) {

      // Create property permission object
      permission = new PropertyPermission("java.*", "read,write");

      // Check permissions
      checkFileReadPermission("java.home");
      checkFileWritePermission("java.home");
   }

   private static void checkFileReadPermission(String path) {

      // Check permission on read action
      if(permission.implies(new PropertyPermission(path, "read"))) {
         System.out.println("Has permissions on "+path+" for read");
      }
   }

   private static void checkFileWritePermission(String path) {

      // Check permission on read action
      if(permission.implies(new PropertyPermission(path, "write"))) {
         System.out.println("Has permissions on "+path+" for write");
      }
   }
}