1 /* 2 * Copyright 2007 Kasper B. Graversen 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 org.supercsv.cellprocessor; 17 18 import org.supercsv.cellprocessor.ift.BoolCellProcessor; 19 import org.supercsv.cellprocessor.ift.StringCellProcessor; 20 import org.supercsv.exception.SuperCsvCellProcessorException; 21 import org.supercsv.util.CsvContext; 22 23 /** 24 * Converts a Boolean into a formatted string. If you want to convert from a String to a Boolean, use the 25 * {@link ParseBool} processor. 26 * 27 * @since 1.50 28 * @author Dominique De Vito 29 */ 30 public class FmtBool extends CellProcessorAdaptor implements BoolCellProcessor { 31 32 private final String trueValue; 33 private final String falseValue; 34 35 /** 36 * Constructs a new <tt>FmtBool</tt> processor, which converts a Boolean into a formatted string. 37 * 38 * @param trueValue 39 * the String to use if the value is true 40 * @param falseValue 41 * the String to use if the value is false 42 */ 43 public FmtBool(final String trueValue, final String falseValue) { 44 super(); 45 this.trueValue = trueValue; 46 this.falseValue = falseValue; 47 } 48 49 /** 50 * Constructs a new <tt>FmtBool</tt> processor, which converts a Boolean into a formatted string, then calls the 51 * next processor in the chain. 52 * 53 * @param trueValue 54 * the String to use if the value is true 55 * @param falseValue 56 * the String to use if the value is false 57 * @param next 58 * the next processor in the chain 59 * @throws NullPointerException 60 * if next is null 61 */ 62 public FmtBool(final String trueValue, final String falseValue, final StringCellProcessor next) { 63 super(next); 64 this.trueValue = trueValue; 65 this.falseValue = falseValue; 66 } 67 68 /** 69 * {@inheritDoc} 70 * 71 * @throws SuperCsvCellProcessorException 72 * if value is null or is not a Boolean 73 */ 74 public Object execute(final Object value, final CsvContext context) { 75 validateInputNotNull(value, context); 76 77 if( !(value instanceof Boolean) ) { 78 throw new SuperCsvCellProcessorException(Boolean.class, value, context, this); 79 } 80 81 final String result = ((Boolean) value).booleanValue() ? trueValue : falseValue; 82 return next.execute(result, context); 83 } 84 }