| %line | %branch | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| org.apache.commons.jexl.parser.ASTEQNode |
|
|
| 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 | package org.apache.commons.jexl.parser; |
|
| 17 | ||
| 18 | import org.apache.commons.jexl.JexlContext; |
|
| 19 | import org.apache.commons.jexl.util.Coercion; |
|
| 20 | ||
| 21 | /** |
|
| 22 | * Represents equality between values. |
|
| 23 | * |
|
| 24 | * If the values are of the same class, .equals() is used. |
|
| 25 | * |
|
| 26 | * If either value is a {@link Float} or {@link Double} (but both are not the same class), |
|
| 27 | * the values are coerced to {@link Double}s before comparing. |
|
| 28 | * |
|
| 29 | * If either value is a {@link Number} or {@link Character} (but both are not the same class), |
|
| 30 | * the values are coerced to {@link Long}s before comparing. |
|
| 31 | * |
|
| 32 | * If either value is a {@link Boolean} (but both are not the same class), |
|
| 33 | * the values are coerced to {@link Boolean}s before comparing. |
|
| 34 | * |
|
| 35 | * If either value is a {@link String} (but both are not the same class), |
|
| 36 | * toString() is called on both before comparing. |
|
| 37 | * |
|
| 38 | * Otherwise left.equals(right) is returned. |
|
| 39 | * |
|
| 40 | * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a> |
|
| 41 | * @version $Id: ASTEQNode.java 398190 2006-04-29 16:04:10Z dion $ |
|
| 42 | */ |
|
| 43 | public class ASTEQNode extends SimpleNode { |
|
| 44 | /** |
|
| 45 | * Create the node given an id. |
|
| 46 | * |
|
| 47 | * @param id node id. |
|
| 48 | */ |
|
| 49 | public ASTEQNode(int id) { |
|
| 50 | 0 | super(id); |
| 51 | 0 | } |
| 52 | ||
| 53 | /** |
|
| 54 | * Create a node with the given parser and id. |
|
| 55 | * |
|
| 56 | * @param p a parser. |
|
| 57 | * @param id node id. |
|
| 58 | */ |
|
| 59 | public ASTEQNode(Parser p, int id) { |
|
| 60 | 55 | super(p, id); |
| 61 | 55 | } |
| 62 | ||
| 63 | /** {@inheritDoc} */ |
|
| 64 | public Object jjtAccept(ParserVisitor visitor, Object data) { |
|
| 65 | 0 | return visitor.visit(this, data); |
| 66 | } |
|
| 67 | ||
| 68 | /** {@inheritDoc} */ |
|
| 69 | public Object value(JexlContext pc) throws Exception { |
|
| 70 | 53 | Object left = ((SimpleNode) jjtGetChild(0)).value(pc); |
| 71 | 53 | Object right = ((SimpleNode) jjtGetChild(1)).value(pc); |
| 72 | ||
| 73 | 53 | if (left == null && right == class="keyword">null) { |
| 74 | /* |
|
| 75 | * if both are null L == R |
|
| 76 | */ |
|
| 77 | 1 | return Boolean.TRUE; |
| 78 | 52 | } else if (left == null || right == class="keyword">null) { |
| 79 | /* |
|
| 80 | * we know both aren't null, therefore L != R |
|
| 81 | */ |
|
| 82 | 4 | return Boolean.FALSE; |
| 83 | 48 | } else if (left.getClass().equals(right.getClass())) { |
| 84 | 38 | return left.equals(right) ? Boolean.TRUE : Boolean.FALSE; |
| 85 | 10 | } else if (left instanceof Float || left instanceof Double |
| 86 | || right instanceof Float || right instanceof Double) { |
|
| 87 | 4 | Double l = Coercion.coerceDouble(left); |
| 88 | 4 | Double r = Coercion.coerceDouble(right); |
| 89 | ||
| 90 | 4 | return l.equals(r) ? Boolean.TRUE : Boolean.FALSE; |
| 91 | 6 | } else if (left instanceof Number || right instanceof Number |
| 92 | || left instanceof Character || right instanceof Character) { |
|
| 93 | 2 | return Coercion.coerceLong(left).equals(Coercion.coerceLong(right)) ? Boolean.TRUE |
| 94 | : Boolean.FALSE; |
|
| 95 | 4 | } else if (left instanceof Boolean || right instanceof Boolean) { |
| 96 | 2 | return Coercion.coerceBoolean(left).equals( |
| 97 | Coercion.coerceBoolean(right)) ? Boolean.TRUE |
|
| 98 | : Boolean.FALSE; |
|
| 99 | 2 | } else if (left instanceof java.lang.String || right instanceof String) { |
| 100 | 1 | return left.toString().equals(right.toString()) ? Boolean.TRUE |
| 101 | : Boolean.FALSE; |
|
| 102 | } |
|
| 103 | ||
| 104 | 1 | return left.equals(right) ? Boolean.TRUE : Boolean.FALSE; |
| 105 | } |
|
| 106 | } |
| This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |