/*
 *
 * Copyright (c) 2006 The Apache Software Foundation
 *
 * Licensed 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.plain;

import javax.security.auth.callback.CallbackHandler;
import javax.security.sasl.Sasl;
import javax.security.sasl.SaslException;
import javax.security.sasl.SaslServer;
import javax.security.sasl.SaslServerFactory;
import java.util.Map;

public class PlainSaslServerFactory implements SaslServerFactory
{    
    public SaslServer createSaslServer(String mechanism, String protocol, String serverName, Map props,
                                       CallbackHandler cbh) throws SaslException
    {
        if (PlainSaslServer.MECHANISM.equals(mechanism))
        {
            return new PlainSaslServer(cbh);
        }
        else
        {
            return null;
        }
    }

    public String[] getMechanismNames(Map props)
    {
        if (props.containsKey(Sasl.POLICY_NOPLAINTEXT) ||
            props.containsKey(Sasl.POLICY_NODICTIONARY) ||
            props.containsKey(Sasl.POLICY_NOACTIVE))
        {
            // returned array must be non null according to interface documentation
            return new String[0];
        }
        else
        {
            return new String[]{PlainSaslServer.MECHANISM};
        }
    }
}
