DefaultRoleValidator.java

/*
 * 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.picketlink.identity.federation.web.roles;

import java.security.Principal;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.StringTokenizer;

import org.apache.log4j.Logger;
import org.picketlink.identity.federation.web.interfaces.IRoleValidator;

/**
 * @author Anil.Saldhana@redhat.com
 * @since Aug 21, 2009
 */
public class DefaultRoleValidator implements IRoleValidator {
    private static Logger log = Logger.getLogger(DefaultRoleValidator.class);
    private boolean trace = log.isTraceEnabled();

    private Set<String> roleNames = new HashSet<String>();

    public void intialize(Map<String, String> options) {
        String csv = options.get("ROLES");
        if (csv == null) {
            if (trace)
                log.trace("There is no ROLES config");
        } else {
            // Get the comma separated role names
            StringTokenizer st = new StringTokenizer(csv, ",");
            while (st != null && st.hasMoreTokens()) {
                roleNames.add(st.nextToken());
            }
        }
    }

    public boolean userInRole(Principal userPrincipal, List<String> roles) {
        for (String roleName : roles) {
            if (roleNames.contains(roleName))
                return true;
        }
        return false;
    }
}