/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 */
package org.apache.qpid.server.security.auth.sasl;

import javax.security.auth.Subject;
import java.security.Principal;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

public class TestPrincipalUtils
{

    /**
     * Creates a test subject, with exactly one UsernamePrincipal and zero or more GroupPrincipals.
     */
    public static Subject createTestSubject(final String username, final String... groups)
    {
        final Set<Principal> principals = new HashSet<Principal>(1 + groups.length);
        principals.add(new UsernamePrincipal(username));
        for (String group : groups)
        {
            principals.add(new GroupPrincipal(group));
        }
        
        final Subject subject = new Subject(true, principals, Collections.EMPTY_SET, Collections.EMPTY_SET);
        return subject;
    }

}
