AbstractSecureCollectionsTest.java

/*
 * Copyright (C) 2010 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.exoplatform.commons.utils.secure;

import junit.framework.TestCase;

import java.net.URL;
import java.security.AccessControlContext;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import java.security.CodeSource;
import java.security.Permission;
import java.security.Permissions;
import java.security.PrivilegedExceptionAction;
import java.security.ProtectionDomain;

/**
 * @author <a href="mailto:nikolazius@gmail.com">Nikolay Zamosenchuk</a>
 * @version $Id$
 */

public abstract class AbstractSecureCollectionsTest extends TestCase
{
   // permission for testing purposes
   public static final Permission MODIFY_PERMISSION = new RuntimePermission("modifyPermisssion");

   /**
    * Run privileged action with given privileges.
    */
   protected <T> T doActionWithPermissions(PrivilegedExceptionAction<T> action, Permission... permissions)
      throws PrivilegedActionException
   {
      Permissions allPermissions = new Permissions();
      for (Permission permission : permissions)
      {
         if (permission != null)
         {
            allPermissions.add(permission);
         }
      }
      ProtectionDomain[] protectionDomains =
         new ProtectionDomain[]{new ProtectionDomain(new CodeSource(getCodeSource(),
            (java.security.cert.Certificate[])null), allPermissions)};
      return AccessController.doPrivileged(action, new AccessControlContext(protectionDomains));
   }

   protected URL getCodeSource()
   {
      return getClass().getProtectionDomain().getCodeSource().getLocation();
   }
}