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/*
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 * Licensed to the Apache Software Foundation (ASF) under one
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 * or more contributor license agreements.  See the NOTICE file
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 * distributed with this work for additional information
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 * regarding copyright ownership.  The ASF licenses this file
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 * to you under the Apache License, Version 2.0 (the
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 * "License"); you may not use this file except in compliance
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 * with the License.  You may obtain a copy of the License at
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 *
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 *   http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing,
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 * software distributed under the License is distributed on an
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 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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 * KIND, either express or implied.  See the License for the
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 * specific language governing permissions and limitations
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 * under the License.
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 */
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package org.apache.sshd.common;
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import java.io.IOException;
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import java.util.List;
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public interface ServiceFactory {
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    /**
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     * Name of this factory
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     * @return
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     */
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    String getName();
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    Service create(Session session) throws IOException;
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    /**
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     * Utility class to help using NamedFactories
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     */
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    public static class Utils {
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        /**
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         * Create an instance of the specified name by looking up the needed factory
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         * in the list.
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         *
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         * @param factories list of available factories
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         * @param name the factory name to use
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         * @return a newly created object or <code>null</code> if the factory is not in the list
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         */
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        public static Service create(List<ServiceFactory> factories, String name, Session session) throws IOException {
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            if (factories != null) {
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                for (ServiceFactory f : factories) {
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                    if (f.getName().equals(name)) {
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                        return f.create(session);
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                    }
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                }
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            }
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            return null;
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        }
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    }
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}