text: /*
   * 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.sshd.common;
  
  import java.io.IOException;
  import java.util.Collection;
  
  import org.apache.sshd.common.session.Session;
  
  public interface ServiceFactory extends NamedResource {
      Service create(Session session) throws IOException;
  
      /**
       * Create an instance of the specified name by looking up the needed factory in the list (case <U>insensitive</U>.
       *
       * @param  factories   list of available factories
       * @param  name        the factory name to use
       * @param  session     the referenced {@link Session}
       * @return             a newly created object or {@code null} if the factory is not in the list
       * @throws IOException if session creation failed
       * @see                ServiceFactory#create(Session)
       */
      static Service create(Collection<? extends ServiceFactory> factories, String name, Session session) throws IOException {
          ServiceFactory factory = NamedResource.findByName(name, String.CASE_INSENSITIVE_ORDER, factories);
          if (factory == null) {
              return null;
          } else {
              return factory.create(session);
          }
      }
  }
  