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1
55
56 package org.apache.commons.el;
57
58 import javax.servlet.jsp.el.ELException  ;
59 import java.math.BigDecimal ;
60
61
68
69 public class DivideOperator
70 extends BinaryOperator
71 {
72
76 public static final DivideOperator SINGLETON =
77 new DivideOperator ();
78
79
84 public DivideOperator ()
85 {
86 }
87
88
95 public String getOperatorSymbol ()
96 {
97 return "/";
98 }
99
100
105 public Object apply (Object pLeft,
106 Object pRight,
107 Logger pLogger)
108 throws ELException
109 {
110 if (pLeft == null &&
111 pRight == null) {
112 if (pLogger.isLoggingWarning ()) {
113 pLogger.logWarning
114 (Constants.ARITH_OP_NULL,
115 getOperatorSymbol ());
116 }
117 return PrimitiveObjects.getInteger (0);
118 }
119
120 if (Coercions.isBigDecimal(pLeft) ||
121 Coercions.isBigInteger(pLeft) ||
122 Coercions.isBigDecimal(pRight) ||
123 Coercions.isBigInteger(pRight)) {
124
125 BigDecimal left = (BigDecimal )
126 Coercions.coerceToPrimitiveNumber(pLeft, BigDecimal .class, pLogger);
127 BigDecimal right = (BigDecimal )
128 Coercions.coerceToPrimitiveNumber(pRight, BigDecimal .class, pLogger);
129
130 try {
131 return left.divide(right, BigDecimal.ROUND_HALF_UP);
132 } catch (Exception exc) {
133 if (pLogger.isLoggingError()) {
134 pLogger.logError
135 (Constants.ARITH_ERROR,
136 getOperatorSymbol(),
137 "" + left,
138 "" + right);
139 }
140 return PrimitiveObjects.getInteger(0);
141 }
142 } else {
143
144 double left =
145 Coercions.coerceToPrimitiveNumber(pLeft, Double .class, pLogger).
146 doubleValue();
147 double right =
148 Coercions.coerceToPrimitiveNumber(pRight, Double .class, pLogger).
149 doubleValue();
150
151 try {
152 return PrimitiveObjects.getDouble(left / right);
153 } catch (Exception exc) {
154 if (pLogger.isLoggingError()) {
155 pLogger.logError
156 (Constants.ARITH_ERROR,
157 getOperatorSymbol(),
158 "" + left,
159 "" + right);
160 }
161 return PrimitiveObjects.getInteger(0);
162 }
163 }
164 }
165
166 }
168 |
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