001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018package org.apache.commons.net.ftp.parser;
019import org.apache.commons.net.ftp.FTPClientConfig;
020import org.apache.commons.net.ftp.FTPFileEntryParser;
021
022/**
023 * The interface describes a factory for creating FTPFileEntryParsers.
024 * @since 1.2
025 */
026public interface FTPFileEntryParserFactory
027{
028    /**
029     * Implementation should be a method that decodes the
030     * supplied key and creates an object implementing the
031     * interface FTPFileEntryParser.
032     *
033     * @param key    A string that somehow identifies an
034     *               FTPFileEntryParser to be created.
035     *
036     * @return the FTPFileEntryParser created.
037     * @exception ParserInitializationException
038     *                   Thrown on any exception in instantiation
039     */
040    public FTPFileEntryParser createFileEntryParser(String key)
041        throws ParserInitializationException;
042
043    /**
044     *<p>
045     * Implementation should be a method that extracts
046     * a key from the supplied {@link  FTPClientConfig FTPClientConfig}
047     * parameter and creates an object implementing the
048     * interface FTPFileEntryParser and uses the supplied configuration
049     * to configure it.
050     * </p><p>
051     * Note that this method will generally not be called in scenarios
052     * that call for autodetection of parser type but rather, for situations
053     * where the user knows that the server uses a non-default configuration
054     * and knows what that configuration is.
055     * </p>
056     *
057     * @param config  A {@link  FTPClientConfig FTPClientConfig}
058     * used to configure the parser created
059     *
060     * @return the @link  FTPFileEntryParser FTPFileEntryParser} so created.
061     * @exception ParserInitializationException
062     *                   Thrown on any exception in instantiation
063     * @since 1.4
064     */
065    public FTPFileEntryParser createFileEntryParser(FTPClientConfig config)
066        throws ParserInitializationException;
067
068}