001package org.hl7.fhir.r4.model; 002 003/* 004 Copyright (c) 2011+, HL7, Inc. 005 All rights reserved. 006 007 Redistribution and use in source and binary forms, with or without modification, 008 are permitted provided that the following conditions are met: 009 010 * Redistributions of source code must retain the above copyright notice, this 011 list of conditions and the following disclaimer. 012 * Redistributions in binary form must reproduce the above copyright notice, 013 this list of conditions and the following disclaimer in the documentation 014 and/or other materials provided with the distribution. 015 * Neither the name of HL7 nor the names of its contributors may be used to 016 endorse or promote products derived from this software without specific 017 prior written permission. 018 019 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 020 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 021 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 022 IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 023 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 024 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 025 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 026 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 027 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 028 POSSIBILITY OF SUCH DAMAGE. 029 030 */ 031 032import java.math.BigDecimal; 033import java.math.MathContext; 034import java.math.RoundingMode; 035 036import org.hl7.fhir.instance.model.api.IBaseDecimalDatatype; 037 038import ca.uhn.fhir.model.api.annotation.DatatypeDef; 039 040/** 041 * Primitive type "decimal" in FHIR: A rational number 042 */ 043@DatatypeDef(name = "decimal") 044public class DecimalType extends PrimitiveType<BigDecimal> implements Comparable<DecimalType>, IBaseDecimalDatatype { 045 046 private static final long serialVersionUID = 3L; 047 048 /** 049 * Constructor 050 */ 051 public DecimalType() { 052 super(); 053 } 054 055 /** 056 * Constructor 057 */ 058 public DecimalType(BigDecimal theValue) { 059 setValue(theValue); 060 } 061 062 /** 063 * Constructor 064 */ 065 public DecimalType(double theValue) { 066 // Use the valueOf here because the constructor gives wacky precision 067 // changes due to the floating point conversion 068 setValue(BigDecimal.valueOf(theValue)); 069 } 070 071 /** 072 * Constructor 073 */ 074 public DecimalType(long theValue) { 075 setValue(theValue); 076 } 077 078 /** 079 * Constructor 080 */ 081 public DecimalType(String theValue) { 082 setValueAsString(theValue); 083 } 084 085 @Override 086 public int compareTo(DecimalType theObj) { 087 if (getValue() == null && theObj.getValue() == null) { 088 return 0; 089 } 090 if (getValue() != null && theObj.getValue() == null) { 091 return 1; 092 } 093 if (getValue() == null && theObj.getValue() != null) { 094 return -1; 095 } 096 return getValue().compareTo(theObj.getValue()); 097 } 098 099 @Override 100 protected String encode(BigDecimal theValue) { 101 return getValue().toString(); 102 } 103 104 /** 105 * Gets the value as an integer, using {@link BigDecimal#intValue()} 106 */ 107 public int getValueAsInteger() { 108 return getValue().intValue(); 109 } 110 111 public Number getValueAsNumber() { 112 return getValue(); 113 } 114 115 @Override 116 protected BigDecimal parse(String theValue) { 117 return new BigDecimal(theValue); 118 } 119 120 /** 121 * Rounds the value to the given prevision 122 * 123 * @see MathContext#getPrecision() 124 */ 125 public void round(int thePrecision) { 126 if (getValue() != null) { 127 BigDecimal newValue = getValue().round(new MathContext(thePrecision)); 128 setValue(newValue); 129 } 130 } 131 132 /** 133 * Rounds the value to the given prevision 134 * 135 * @see MathContext#getPrecision() 136 * @see MathContext#getRoundingMode() 137 */ 138 public void round(int thePrecision, RoundingMode theRoundingMode) { 139 if (getValue() != null) { 140 BigDecimal newValue = getValue().round(new MathContext(thePrecision, theRoundingMode)); 141 setValue(newValue); 142 } 143 } 144 145 /** 146 * Sets a new value using an integer 147 */ 148 public void setValueAsInteger(int theValue) { 149 setValue(BigDecimal.valueOf(theValue)); 150 } 151 152 public void setValueAsString(String theString) { 153 setValue(new BigDecimal(theString)); 154 setRepresentation(theString); 155 } 156 157 /** 158 * Sets a new value using a long 159 */ 160 public void setValue(long theValue) { 161 setValue(BigDecimal.valueOf(theValue)); 162 } 163 164 /** 165 * Sets a new value using a double 166 */ 167 public void setValue(double theValue) { 168 setValue(BigDecimal.valueOf(theValue)); 169 } 170 171 @Override 172 public DecimalType copy() { 173 DecimalType ret = new DecimalType(getValue()); 174 copyValues(ret); 175 return ret; 176 } 177 178 public String fhirType() { 179 return "decimal"; 180 } 181 182 /** 183 * A parser can provide a literal representation for the decimal value that 184 * preserves the presented form. 185 * 186 * All sorts of bad things can happen if this method is used to set the string 187 * representation to anything other than what was parsed into the actual value. 188 * Don't do that 189 * 190 * @param value 191 * @return 192 */ 193 public DecimalType setRepresentation(String value) { 194 forceStringValue(value); 195 return this; 196 } 197}