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17 package org.apache.commons.jexl.parser;
18
19 import org.apache.commons.jexl.JexlContext;
20 import org.apache.commons.jexl.util.Coercion;
21
22 /***
23 * %
24 *
25 * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
26 * @version $Id: ASTModNode.java,v 1.4 2004/02/28 13:45:20 yoavs Exp $
27 */
28 public class ASTModNode extends SimpleNode
29 {
30 public ASTModNode(int id)
31 {
32 super(id);
33 }
34
35 public ASTModNode(Parser p, int id)
36 {
37 super(p, id);
38 }
39
40
41 /*** Accept the visitor. **/
42 public Object jjtAccept(ParserVisitor visitor, Object data)
43 {
44 return visitor.visit(this, data);
45 }
46
47 public Object value(JexlContext jc)
48 throws Exception
49 {
50 Object left = ((SimpleNode) jjtGetChild(0)).value(jc);
51 Object right = ((SimpleNode) jjtGetChild(1)).value(jc);
52
53
54
55
56 if (left == null && right == null)
57 return new Integer(0);
58
59
60
61
62
63 if ( left instanceof Float || left instanceof Double
64 || right instanceof Float || right instanceof Double
65 || ( left instanceof String
66 && ( ((String) left).indexOf(".") != -1 ||
67 ((String) left).indexOf("e") != -1 ||
68 ((String) left).indexOf("E") != -1 )
69 )
70 || ( right instanceof String
71 && ( ((String) right).indexOf(".") != -1 ||
72 ((String) right).indexOf("e") != -1 ||
73 ((String) right).indexOf("E") != -1 )
74 )
75 )
76 {
77 Double l = Coercion.coerceDouble(left);
78 Double r = Coercion.coerceDouble(right);
79
80
81
82
83 if (r.doubleValue() == 0.0)
84 return new Double(0.0);
85
86 return new Double(l.doubleValue() % r.doubleValue());
87 }
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93 Long l = Coercion.coerceLong(left);
94 Long r = Coercion.coerceLong(right);
95
96
97
98
99 if (r.longValue() == 0)
100 return new Long(0);
101
102 return new Long(l.longValue() % r.longValue());
103 }
104
105 }