/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* 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.jboss.test.jacc.test.portal;
import org.jboss.logging.Logger;
import java.io.Serializable;
import java.security.Permission;
import java.security.PermissionCollection;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.Vector;
/**
* A permission collection to cache portal object permissions.
* <p>The <code>PermissionCollection</code> is used by the JACC Policy to cache permissions for a given PolicyContext.</p>
*
* @author <a href="mailto:mholzner@novell.com">Martin Holzner</a>
* @version $Revision: 81036 $
*/
public final class InstancePermissionCollection extends PermissionCollection implements Serializable
{
private static Logger log = Logger.getLogger(InstancePermissionCollection.class);
private final Vector permissions;
private boolean trace;
public InstancePermissionCollection()
{
trace = log.isTraceEnabled();
if (trace)
{
log.trace("creating portal object permission collection...");
}
permissions = new Vector();
}
public void add(Permission permission)
{
if (trace)
{
log.trace("adding " + permission);
}
if (!(permission instanceof InstancePermission))
{
throw new IllegalArgumentException();
}
permissions.add(permission);
}
public boolean implies(Permission permission)
{
if (trace)
{
log.trace("implies ? " + permission);
}
if (!(permission instanceof InstancePermission))
{
return false;
}
Iterator permIterator = permissions.iterator();
while (permIterator.hasNext())
{
InstancePermission p = (InstancePermission)permIterator.next();
if (p.implies(permission))
{
return true;
}
}
return false;
}
public Enumeration elements()
{
return permissions.elements();
}
}