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| org.apache.commons.jexl.parser.ASTIfStatement | 
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| 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 |   * if ( expression ) statement [else statement]. | |
| 24 |   *  | |
| 25 |   * @author Dion Gillard | |
| 26 |   * @since 1.1 | |
| 27 |   */ | |
| 28 | public class ASTIfStatement extends SimpleNode { | |
| 29 |      /** child index of the else statement to execute. */ | |
| 30 | private static final int ELSE_STATEMENT_INDEX = 2; | |
| 31 |      /** | |
| 32 |       * Create the node given an id. | |
| 33 |       *  | |
| 34 |       * @param id node id. | |
| 35 |       */ | |
| 36 | public ASTIfStatement(int id) { | |
| 37 | 0 |          super(id); | 
| 38 | 0 |      } | 
| 39 | ||
| 40 |      /** | |
| 41 |       * Create a node with the given parser and id. | |
| 42 |       *  | |
| 43 |       * @param p a parser. | |
| 44 |       * @param id node id. | |
| 45 |       */ | |
| 46 | public ASTIfStatement(Parser p, int id) { | |
| 47 | 24 |          super(p, id); | 
| 48 | 24 | } | 
| 49 | ||
| 50 |      /** {@inheritDoc} */ | |
| 51 |      public Object jjtAccept(ParserVisitor visitor, Object data) { | |
| 52 | 0 |          return visitor.visit(this, data); | 
| 53 | } | |
| 54 | ||
| 55 |      /** {@inheritDoc} */ | |
| 56 |      public Object value(JexlContext jc) throws Exception { | |
| 57 | 20 |          Object result = null; | 
| 58 |          /* first child is the expression */ | |
| 59 | 20 | Object expression = ((SimpleNode) jjtGetChild(0)).value(jc); | 
| 60 | 20 |          if (Coercion.coerceBoolean(expression).booleanValue()) { | 
| 61 |              // true statement | |
| 62 | 16 | result = ((SimpleNode) jjtGetChild(1)).value(jc); | 
| 63 |          } else { | |
| 64 |              // if there is a false, execute it | |
| 65 | 4 |              if (jjtGetNumChildren() == ELSE_STATEMENT_INDEX + 1) { | 
| 66 | 3 | result = ((SimpleNode) jjtGetChild(2)).value(jc); | 
| 67 | } | |
| 68 | } | |
| 69 | ||
| 70 | 20 |          return result; | 
| 71 | } | |
| 72 | ||
| 73 | } | 
| This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |