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 * https://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.beanutils.converters; 019 020import java.util.List; 021 022import org.apache.commons.beanutils.ConversionException; 023 024/** 025 * <p>Standard {@link org.apache.commons.beanutils.Converter} implementation that converts an incoming 026 * String into a primitive array of char. On a conversion failure, returns 027 * a specified default value or throws a {@link ConversionException} depending 028 * on how this instance is constructed.</p> 029 * 030 * @since 1.4 031 * @deprecated Replaced by the new {@link ArrayConverter} implementation 032 */ 033 034@Deprecated 035public final class CharacterArrayConverter extends AbstractArrayConverter { 036 037 /** 038 * <p>Model object for type comparisons.</p> 039 */ 040 private static final char[] MODEL = {}; 041 042 /** 043 * Create a {@link org.apache.commons.beanutils.Converter} that will throw 044 * a {@link ConversionException} if a conversion error occurs. 045 */ 046 public CharacterArrayConverter() { 047 048 this.defaultValue = null; 049 this.useDefault = false; 050 051 } 052 053 /** 054 * Create a {@link org.apache.commons.beanutils.Converter} that will return 055 * the specified default value if a conversion error occurs. 056 * 057 * @param defaultValue The default value to be returned 058 */ 059 public CharacterArrayConverter(final Object defaultValue) { 060 061 this.defaultValue = defaultValue; 062 this.useDefault = true; 063 064 } 065 066 /** 067 * Convert the specified input object into an output object of the 068 * specified type. 069 * 070 * @param type Data type to which this value should be converted 071 * @param value The input value to be converted 072 * @return the converted value 073 * @throws ConversionException if conversion cannot be performed 074 * successfully 075 */ 076 @Override 077 public Object convert(final Class type, final Object value) { 078 079 // Deal with a null value 080 if (value == null) { 081 if (useDefault) { 082 return defaultValue; 083 } 084 throw new ConversionException("No value specified"); 085 } 086 087 // Deal with the no-conversion-needed case 088 if (MODEL.getClass() == value.getClass()) { 089 return value; 090 } 091 092 // Deal with input value as a String array 093 if (strings.getClass() == value.getClass()) { 094 try { 095 final String[] values = (String[]) value; 096 final char[] results = new char[values.length]; 097 for (int i = 0; i < values.length; i++) { 098 results[i] = values[i].charAt(0); 099 } 100 return results; 101 } catch (final Exception e) { 102 if (useDefault) { 103 return defaultValue; 104 } 105 throw new ConversionException(value.toString(), e); 106 } 107 } 108 109 // Parse the input value as a String into elements 110 // and convert to the appropriate type 111 try { 112 final List<String> list = parseElements(value.toString()); 113 final char[] results = new char[list.size()]; 114 for (int i = 0; i < results.length; i++) { 115 results[i] = list.get(i).charAt(0); 116 } 117 return results; 118 } catch (final Exception e) { 119 if (useDefault) { 120 return defaultValue; 121 } 122 throw new ConversionException(value.toString(), e); 123 } 124 125 } 126 127}