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org.apache.commons.jexl.parser.ASTGTNode |
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1 | /* |
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2 | * Copyright 2002-2006 The Apache Software Foundation. |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | package org.apache.commons.jexl.parser; |
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17 | ||
18 | import org.apache.commons.jexl.JexlContext; |
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19 | import org.apache.commons.jexl.util.Coercion; |
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20 | ||
21 | /** |
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22 | * GT : a > b. |
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23 | * |
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24 | * Follows A.3.6.1 of the JSTL 1.0 specification |
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25 | * |
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26 | * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a> |
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27 | * @author <a href="mailto:proyal@apache.org">Peter Royal</a> |
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28 | * @version $Id: ASTGTNode.java 398197 2006-04-29 16:18:04Z dion $ |
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29 | */ |
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30 | public class ASTGTNode extends SimpleNode { |
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31 | /** |
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32 | * Create the node given an id. |
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33 | * |
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34 | * @param id node id. |
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35 | */ |
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36 | public ASTGTNode(int id) { |
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37 | 0 | super(id); |
38 | 0 | } |
39 | ||
40 | /** |
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41 | * Create a node with the given parser and id. |
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42 | * |
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43 | * @param p a parser. |
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44 | * @param id node id. |
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45 | */ |
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46 | public ASTGTNode(Parser p, int id) { |
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47 | 9 | super(p, id); |
48 | 9 | } |
49 | ||
50 | /** {@inheritDoc} */ |
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51 | public Object jjtAccept(ParserVisitor visitor, Object data) { |
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52 | 0 | return visitor.visit(this, data); |
53 | } |
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54 | ||
55 | /** {@inheritDoc} */ |
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56 | public Object value(JexlContext jc) throws Exception { |
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57 | /* |
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58 | * now get the values |
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59 | */ |
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60 | ||
61 | 9 | Object left = ((SimpleNode) jjtGetChild(0)).value(jc); |
62 | 9 | Object right = ((SimpleNode) jjtGetChild(1)).value(jc); |
63 | ||
64 | 9 | if ((left == right) || (left == null) || (right == class="keyword">null)) { |
65 | 2 | return Boolean.FALSE; |
66 | 7 | } else if (Coercion.isFloatingPoint(left) |
67 | || Coercion.isFloatingPoint(right)) { |
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68 | 1 | double leftDouble = Coercion.coerceDouble(left).class="keyword">doubleValue(); |
69 | 1 | double rightDouble = Coercion.coerceDouble(right).class="keyword">doubleValue(); |
70 | ||
71 | 1 | return leftDouble > rightDouble ? Boolean.TRUE : Boolean.FALSE; |
72 | 6 | } else if (Coercion.isNumberable(left) || Coercion.isNumberable(right)) { |
73 | 4 | long leftLong = Coercion.coerceLong(left).class="keyword">longValue(); |
74 | 4 | long rightLong = Coercion.coerceLong(right).class="keyword">longValue(); |
75 | ||
76 | 4 | return leftLong > rightLong ? Boolean.TRUE : Boolean.FALSE; |
77 | 2 | } else if (left instanceof String || right instanceof String) { |
78 | 1 | String leftString = left.toString(); |
79 | 1 | String rightString = right.toString(); |
80 | ||
81 | 1 | return leftString.compareTo(rightString) > 0 ? Boolean.TRUE |
82 | : Boolean.FALSE; |
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83 | 1 | } else if (left instanceof Comparable) { |
84 | 1 | return ((Comparable) left).compareTo(right) > 0 ? Boolean.TRUE |
85 | : Boolean.FALSE; |
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86 | 0 | } else if (right instanceof Comparable) { |
87 | 0 | return ((Comparable) right).compareTo(left) < 0 ? Boolean.TRUE |
88 | : Boolean.FALSE; |
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89 | } |
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90 | ||
91 | 0 | throw new Exception("Invalid comparison : GT "); |
92 | } |
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93 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |