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.csv; 014 015import java.util.*; 016import java.util.concurrent.*; 017 018import org.apache.juneau.*; 019import org.apache.juneau.annotation.*; 020import org.apache.juneau.collections.*; 021import org.apache.juneau.parser.*; 022 023/** 024 * TODO - Work in progress. CSV parser. 025 */ 026@ConfigurableContext 027public class CsvParser extends ReaderParser implements CsvMetaProvider, CsvCommon { 028 029 //------------------------------------------------------------------------------------------------------------------- 030 // Configurable properties 031 //------------------------------------------------------------------------------------------------------------------- 032 033 static final String PREFIX = "CsvParser"; 034 035 //------------------------------------------------------------------------------------------------------------------- 036 // Predefined instances 037 //------------------------------------------------------------------------------------------------------------------- 038 039 /** Default parser, all default settings.*/ 040 public static final CsvParser DEFAULT = new CsvParser(PropertyStore.DEFAULT); 041 042 043 //------------------------------------------------------------------------------------------------------------------- 044 // Instance 045 //------------------------------------------------------------------------------------------------------------------- 046 047 private final Map<ClassMeta<?>,CsvClassMeta> csvClassMetas = new ConcurrentHashMap<>(); 048 private final Map<BeanPropertyMeta,CsvBeanPropertyMeta> csvBeanPropertyMetas = new ConcurrentHashMap<>(); 049 050 /** 051 * Constructor. 052 * 053 * @param ps The property store containing all the settings for this object. 054 */ 055 public CsvParser(PropertyStore ps) { 056 super(ps, "text/csv"); 057 } 058 059 @Override /* Context */ 060 public CsvParserBuilder builder() { 061 return new CsvParserBuilder(getPropertyStore()); 062 } 063 064 /** 065 * Instantiates a new clean-slate {@link CsvParserBuilder} object. 066 * 067 * <p> 068 * Note that this method creates a builder initialized to all default settings, whereas {@link #builder()} copies 069 * the settings of the object called on. 070 * 071 * @return A new {@link CsvParserBuilder} object. 072 */ 073 public static CsvParserBuilder create() { 074 return new CsvParserBuilder(); 075 } 076 077 @Override /* Parser */ 078 public CsvParserSession createSession() { 079 return createSession(createDefaultSessionArgs()); 080 } 081 082 @Override /* Parser */ 083 public CsvParserSession createSession(ParserSessionArgs args) { 084 return new CsvParserSession(this, args); 085 } 086 087 //----------------------------------------------------------------------------------------------------------------- 088 // Extended metadata 089 //----------------------------------------------------------------------------------------------------------------- 090 091 @Override /* CsvMetaProvider */ 092 public CsvClassMeta getCsvClassMeta(ClassMeta<?> cm) { 093 CsvClassMeta m = csvClassMetas.get(cm); 094 if (m == null) { 095 m = new CsvClassMeta(cm, this); 096 csvClassMetas.put(cm, m); 097 } 098 return m; 099 } 100 101 @Override /* CsvMetaProvider */ 102 public CsvBeanPropertyMeta getCsvBeanPropertyMeta(BeanPropertyMeta bpm) { 103 if (bpm == null) 104 return CsvBeanPropertyMeta.DEFAULT; 105 CsvBeanPropertyMeta m = csvBeanPropertyMetas.get(bpm); 106 if (m == null) { 107 m = new CsvBeanPropertyMeta(bpm.getDelegateFor(), this); 108 csvBeanPropertyMetas.put(bpm, m); 109 } 110 return m; 111 } 112 113 //----------------------------------------------------------------------------------------------------------------- 114 // Other methods 115 //----------------------------------------------------------------------------------------------------------------- 116 117 @Override /* Context */ 118 public OMap toMap() { 119 return super.toMap() 120 .a("CsvParser", new DefaultFilteringOMap()); 121 } 122}