content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.extensions;
  
  import alluxio.conf.AlluxioConfiguration;
  
  /**
   * A factory class for creating instance of {@link T} based on configuration {@link S}.
   * @param <T> The type of instance to be created
   * @param <S> the type of configuration to be used when creating the extension
   */
  public interface ExtensionFactory<T, S extends AlluxioConfiguration> {
    /**
     * Creates a new extension for the given path. An {@link IllegalArgumentException} is
     * thrown if this factory does not support extension for the given path or if the configuration
     * provided is insufficient to create an extension.
     *
     * @param path file path with scheme for which the extension will be created
     * @param conf configuration object for the extension
     * @return the new extension
     */
    T create(String path, S conf);
  
    /**
     * Gets whether this factory supports the given path and thus whether calling the
     * {@link #create(String, S)} can succeed for this path.
     *
     * @param path file path with scheme for which the extension will be created
     * @param conf configuration object for the extension
     * @return true if the path is supported, false otherwise
     */
    boolean supportsPath(String path, S conf);
  }
  