| 1 | /* | |
| 2 | * Copyright 2004 the original author or authors. | |
| 3 | * | |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 5 | * you may not use this file except in compliance with the License. | |
| 6 | * You may obtain a copy of the License at | |
| 7 | * | |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 9 | * | |
| 10 | * Unless required by applicable law or agreed to in writing, software | |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 13 | * See the License for the specific language governing permissions and | |
| 14 | * limitations under the License. | |
| 15 | */ | |
| 16 | package com.ancientprogramming.fixedformat4j.annotation; | |
| 17 | ||
| 18 | import com.ancientprogramming.fixedformat4j.format.FormatInstructions; | |
| 19 | import org.apache.commons.lang3.StringUtils; | |
| 20 | ||
| 21 | /** | |
| 22 | * Sign defines where to place a sign defining a positive or negative number. | |
| 23 | * Is to be used in formatters operating numbers. | |
| 24 | * | |
| 25 | * @author Jacob von Eyben - <a href="https://eybenconsult.com">https://eybenconsult.com</a> | |
| 26 | * @since 1.1.0 | |
| 27 | */ | |
| 28 | public enum Sign { | |
| 29 | ||
| 30 | /** | |
| 31 | * Doesn't do anything with signs. | |
| 32 | * This just delegate to the {@link Align} defined in {@link FormatInstructions}. | |
| 33 | */ | |
| 34 | NOSIGN { | |
| 35 | /** {@inheritDoc} */ | |
| 36 | public String apply(String value, FormatInstructions instructions) { | |
| 37 |
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return instructions.getAlignment().apply(value, instructions.getLength(), instructions.getPaddingChar()); |
| 38 | } | |
| 39 | ||
| 40 | /** {@inheritDoc} */ | |
| 41 | public String remove(String value, FormatInstructions instructions) { | |
| 42 | String result = instructions.getAlignment().remove(value, instructions.getPaddingChar()); | |
| 43 |
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if (StringUtils.isEmpty(result)) { |
| 44 | result = "0"; | |
| 45 | } | |
| 46 |
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return result; |
| 47 | ||
| 48 | } | |
| 49 | }, | |
| 50 | ||
| 51 | /** | |
| 52 | * Prepend the sign to the string | |
| 53 | */ | |
| 54 | PREPEND { | |
| 55 | /** {@inheritDoc} */ | |
| 56 | public String apply(String value, FormatInstructions instructions) { | |
| 57 | String sign = StringUtils.substring(value, 0, 1); | |
| 58 |
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if ("-".equals(sign)) { |
| 59 | value = StringUtils.substring(value, 1); | |
| 60 | } else { | |
| 61 | sign = "+"; | |
| 62 | } | |
| 63 | String result = instructions.getAlignment().apply(value, instructions.getLength(), instructions.getPaddingChar()); | |
| 64 |
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return sign + StringUtils.substring(result, 1); |
| 65 | } | |
| 66 | ||
| 67 | /** {@inheritDoc} */ | |
| 68 | public String remove(String value, FormatInstructions instructions) { | |
| 69 | String sign = StringUtils.substring(value, 0, 1); | |
| 70 | String valueWithoutSign = StringUtils.substring(value, 1); | |
| 71 | String result = instructions.getAlignment().remove(valueWithoutSign, instructions.getPaddingChar()); | |
| 72 |
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if (removeSign(instructions, sign, result)) { |
| 73 | sign = ""; | |
| 74 | } | |
| 75 | ||
| 76 |
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if (StringUtils.isEmpty(result)) { |
| 77 | result = "0"; | |
| 78 | } | |
| 79 |
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return sign + result; |
| 80 | } | |
| 81 | }, | |
| 82 | ||
| 83 | /** | |
| 84 | * Append the sign to the string | |
| 85 | */ | |
| 86 | APPEND { | |
| 87 | /** {@inheritDoc} */ | |
| 88 | public String apply(String value, FormatInstructions instructions) { | |
| 89 | String sign = StringUtils.substring(value, 0, 1); | |
| 90 |
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1. apply : negated conditional → KILLED |
if ("-".equals(sign)) { |
| 91 | value = StringUtils.substring(value, 1); | |
| 92 | } else { | |
| 93 | sign = "+"; | |
| 94 | } | |
| 95 | String result = instructions.getAlignment().apply(value, instructions.getLength(), instructions.getPaddingChar()); | |
| 96 |
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1. apply : replaced return value with "" for com/ancientprogramming/fixedformat4j/annotation/Sign$3::apply → KILLED |
return StringUtils.substring(result, 1) + sign; |
| 97 | ||
| 98 | } | |
| 99 | /** {@inheritDoc} */ | |
| 100 | public String remove(String value, FormatInstructions instructions) { | |
| 101 |
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1. remove : Replaced integer subtraction with addition → KILLED |
String sign = StringUtils.substring(value, value.length()-1); |
| 102 |
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1. remove : Replaced integer subtraction with addition → KILLED |
String valueWithoutSign = StringUtils.substring(value, 0, value.length()-1); |
| 103 | String result = instructions.getAlignment().remove(valueWithoutSign, instructions.getPaddingChar()); | |
| 104 |
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if (removeSign(instructions, sign, result)) { |
| 105 | sign = ""; | |
| 106 | } | |
| 107 |
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if (StringUtils.isEmpty(result)) { |
| 108 | result = "0"; | |
| 109 | } | |
| 110 |
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return sign + result; |
| 111 | } | |
| 112 | }; | |
| 113 | ||
| 114 | /** | |
| 115 | *remove sign in three cases: | |
| 116 | * 1. positive sign | |
| 117 | * 2. the unsigned value is empty (can happen if paddingchar is 0 and the value is zero) | |
| 118 | * 3. the unsigned value is 0 (can happen if paddingchar isn't 0 and the value is zero) | |
| 119 | * @param instructions | |
| 120 | * @param sign | |
| 121 | * @param valueWithoutSign | |
| 122 | * @return | |
| 123 | */ | |
| 124 | private static boolean removeSign(FormatInstructions instructions, String sign, String valueWithoutSign) { | |
| 125 |
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1. removeSign : replaced boolean return with true for com/ancientprogramming/fixedformat4j/annotation/Sign::removeSign → KILLED 2. removeSign : negated conditional → KILLED |
return instructions.getFixedFormatNumberData().getPositiveSign().equals(sign.charAt(0)) || |
| 126 |
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StringUtils.isEmpty(valueWithoutSign) || |
| 127 |
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"0".equals(valueWithoutSign); |
| 128 | } | |
| 129 | ||
| 130 | ||
| 131 | /** | |
| 132 | * Applies the sign to {@code value} according to this strategy, padding the result to the | |
| 133 | * length specified in {@code instructions}. | |
| 134 | * | |
| 135 | * @param value the raw numeric string (may include a leading {@code -}) | |
| 136 | * @param instructions the formatting instructions for the field | |
| 137 | * @return the sign-formatted string padded to the required length | |
| 138 | */ | |
| 139 | public abstract String apply(String value, FormatInstructions instructions); | |
| 140 | ||
| 141 | /** | |
| 142 | * Strips the sign character from {@code value} and returns the bare numeric string. | |
| 143 | * | |
| 144 | * @param value the field value as read from the fixed-width record | |
| 145 | * @param instructions the formatting instructions for the field | |
| 146 | * @return the numeric string with the sign and padding removed | |
| 147 | */ | |
| 148 | public abstract String remove(String value, FormatInstructions instructions); | |
| 149 | } | |
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