| %line | %branch | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| org.apache.commons.jexl.parser.ASTAddNode |
|
|
| 1 | /* |
|
| 2 | * Copyright 2002-2006 The Apache Software Foundation. |
|
| 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 | ||
| 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 | * Addition : either integer addition or string concatenation. |
|
| 24 | * |
|
| 25 | * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a> |
|
| 26 | * @version $Id: ASTAddNode.java 398180 2006-04-29 15:40:35Z dion $ |
|
| 27 | */ |
|
| 28 | public class ASTAddNode extends SimpleNode { |
|
| 29 | /** |
|
| 30 | * Create the node given an id. |
|
| 31 | * |
|
| 32 | * @param id node id. |
|
| 33 | */ |
|
| 34 | public ASTAddNode(int id) { |
|
| 35 | 0 | super(id); |
| 36 | 0 | } |
| 37 | ||
| 38 | /** |
|
| 39 | * Create a node with the given parser and id. |
|
| 40 | * |
|
| 41 | * @param p a parser. |
|
| 42 | * @param id node id. |
|
| 43 | */ |
|
| 44 | public ASTAddNode(Parser p, int id) { |
|
| 45 | 32 | super(p, id); |
| 46 | 32 | } |
| 47 | ||
| 48 | ||
| 49 | /** |
|
| 50 | * {@inheritDoc} |
|
| 51 | */ |
|
| 52 | public Object jjtAccept(ParserVisitor visitor, Object data) { |
|
| 53 | 0 | return visitor.visit(this, data); |
| 54 | } |
|
| 55 | ||
| 56 | /** |
|
| 57 | * {@inheritDoc} |
|
| 58 | */ |
|
| 59 | public Object value(JexlContext context) throws Exception { |
|
| 60 | 51 | Object left = ((SimpleNode) jjtGetChild(0)).value(context); |
| 61 | 51 | Object right = ((SimpleNode) jjtGetChild(1)).value(context); |
| 62 | ||
| 63 | /* |
|
| 64 | * the spec says 'and' |
|
| 65 | */ |
|
| 66 | 51 | if (left == null && right == class="keyword">null) { |
| 67 | 1 | return new Long(0); |
| 68 | } |
|
| 69 | ||
| 70 | /* |
|
| 71 | * if anything is float, double or string with ( "." | "E" | "e") |
|
| 72 | * coerce all to doubles and do it |
|
| 73 | */ |
|
| 74 | 50 | if (left instanceof Float || left instanceof Double |
| 75 | || right instanceof Float || right instanceof Double |
|
| 76 | || (left instanceof String |
|
| 77 | && (((String) left).indexOf(".") != -1 |
|
| 78 | || ((String) left).indexOf("e") != -1 |
|
| 79 | || ((String) left).indexOf("E") != -1) |
|
| 80 | ) |
|
| 81 | || (right instanceof String |
|
| 82 | && (((String) right).indexOf(".") != -1 |
|
| 83 | || ((String) right).indexOf("e") != -1 |
|
| 84 | || ((String) right).indexOf("E") != -1) |
|
| 85 | ) |
|
| 86 | ) { |
|
| 87 | ||
| 88 | /* |
|
| 89 | * in the event that either is null and not both, then just make the |
|
| 90 | * null a 0 |
|
| 91 | */ |
|
| 92 | ||
| 93 | try { |
|
| 94 | 5 | Double l = Coercion.coerceDouble(left); |
| 95 | 0 | Double r = Coercion.coerceDouble(right); |
| 96 | 0 | return new Double(l.doubleValue() + r.doubleValue()); |
| 97 | } catch (java.lang.NumberFormatException nfe) { |
|
| 98 | /* |
|
| 99 | * Well, use strings! |
|
| 100 | */ |
|
| 101 | 5 | return left.toString().concat(right.toString()); |
| 102 | } |
|
| 103 | } |
|
| 104 | ||
| 105 | /* |
|
| 106 | * attempt to use Longs |
|
| 107 | */ |
|
| 108 | try { |
|
| 109 | 45 | Long l = Coercion.coerceLong(left); |
| 110 | 43 | Long r = Coercion.coerceLong(right); |
| 111 | 43 | return new Long(l.longValue() + r.longValue()); |
| 112 | } catch (java.lang.NumberFormatException nfe) { |
|
| 113 | /* |
|
| 114 | * Well, use strings! |
|
| 115 | */ |
|
| 116 | 2 | return left.toString().concat(right.toString()); |
| 117 | } |
|
| 118 | } |
|
| 119 | } |
| This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |