001// ***************************************************************************************************************************
002// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.  See the NOTICE file *
003// * distributed with this work for additional information regarding copyright ownership.  The ASF licenses this file        *
004// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance            *
005// * with the License.  You may obtain a copy of the License at                                                              *
006// *                                                                                                                         *
007// *  http://www.apache.org/licenses/LICENSE-2.0                                                                             *
008// *                                                                                                                         *
009// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an  *
010// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the        *
011// * specific language governing permissions and limitations under the License.                                              *
012// ***************************************************************************************************************************
013package org.apache.juneau.httppart;
014
015import org.apache.juneau.parser.*;
016
017/**
018 * An implementation of {@link HttpPartParser} that takes in the strings and tries to convert them to POJOs using constructors and static create methods.
019 *
020 * <p>
021 * The class being created must be one of the following in order to convert it from a string:
022 *
023 * <ul>
024 *    <li>
025 *       An <jk>enum</jk>.
026 *    <li>
027 *       Have a public constructor with a single <c>String</c> parameter.
028 *    <li>
029 *       Have one of the following public static methods that takes in a single <c>String</c> parameter:
030 *       <ul>
031 *          <li><c>fromString</c>
032 *          <li><c>fromValue</c>
033 *          <li><c>valueOf</c>
034 *          <li><c>parse</c>
035 *          <li><c>parseString</c>
036 *          <li><c>forName</c>
037 *          <li><c>forString</c>
038 *    </ul>
039 * </ul>
040 */
041public class SimplePartParser extends BaseHttpPartParser {
042
043   //-------------------------------------------------------------------------------------------------------------------
044   // Predefined instances
045   //-------------------------------------------------------------------------------------------------------------------
046
047   /** Reusable instance of {@link SimplePartParser}, all default settings. */
048   public static final SimplePartParser DEFAULT = new SimplePartParser();
049
050   /** Reusable instance of {@link SimplePartParser}, all default settings. */
051   public static final SimplePartParserSession DEFAULT_SESSION = DEFAULT.createPartSession(null);
052
053
054   //-------------------------------------------------------------------------------------------------------------------
055   // Instance
056   //-------------------------------------------------------------------------------------------------------------------
057
058   @Override
059   public SimplePartParserSession createPartSession(ParserSessionArgs args) {
060      return new SimplePartParserSession();
061   }
062}