Coverage Report - org.mule.expression.ExpressionConfig
 
Classes in this File Line Coverage Branch Coverage Complexity
ExpressionConfig
0%
0/49
0%
0/16
2.083
 
 1  
 /*
 2  
  * $Id: ExpressionConfig.java 19191 2010-08-25 21:05:23Z tcarlson $
 3  
  * --------------------------------------------------------------------------------------
 4  
  * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 5  
  *
 6  
  * The software in this package is published under the terms of the CPAL v1.0
 7  
  * license, a copy of which has been included with this distribution in the
 8  
  * LICENSE.txt file.
 9  
  */
 10  
 package org.mule.expression;
 11  
 
 12  
 import org.mule.api.expression.ExpressionManager;
 13  
 import org.mule.config.i18n.CoreMessages;
 14  
 import org.mule.util.StringUtils;
 15  
 
 16  
 /**
 17  
  * A simple configuration object for holding the common Expression evaluator configuration.
 18  
  * The {@link #getFullExpression(ExpressionManager)} will return the evaluator and expression 
 19  
  * information in a format that can be passed into the {@link DefaultExpressionManager}
 20  
  */
 21  
 public class ExpressionConfig
 22  
 {
 23  
     public static final String CUSTOM_EVALUATOR = "custom";
 24  
     public static final String EXPRESSION_SEPARATOR = ":";
 25  
     private String expression;
 26  
 
 27  
     private String evaluator;
 28  
 
 29  
     private String customEvaluator;
 30  
 
 31  
     private String fullExpression;
 32  
 
 33  0
     private String expressionPrefix = ExpressionManager.DEFAULT_EXPRESSION_PREFIX;
 34  0
     private String expressionPostfix = ExpressionManager.DEFAULT_EXPRESSION_POSTFIX;
 35  
 
 36  
     public ExpressionConfig()
 37  
     {
 38  0
         super();
 39  0
     }
 40  
 
 41  
     public ExpressionConfig(String expression, String evaluator, String customEvaluator)
 42  
     {
 43  0
         this(expression, evaluator, customEvaluator,
 44  
                 ExpressionManager.DEFAULT_EXPRESSION_PREFIX,
 45  
                 ExpressionManager.DEFAULT_EXPRESSION_POSTFIX);
 46  
 
 47  0
     }
 48  
 
 49  
     public ExpressionConfig(String expression, String evaluator, String customEvaluator, String expressionPrefix, String expressionPostfix)
 50  0
     {
 51  0
         setCustomEvaluator(customEvaluator);
 52  0
         setEvaluator(evaluator);
 53  0
         setExpression(expression);
 54  0
         this.expressionPostfix = expressionPostfix;
 55  0
         this.expressionPrefix = expressionPrefix;
 56  0
     }
 57  
 
 58  
     public void parse(String expressionString)
 59  
     {
 60  0
         if(expressionString.startsWith(expressionPrefix))
 61  
         {
 62  0
             expressionString = expressionString.substring(expressionPrefix.length());
 63  0
             expressionString = expressionString.substring(0, expressionString.length() - expressionPostfix.length());
 64  
         }
 65  
         
 66  0
         int i = expressionString.indexOf(EXPRESSION_SEPARATOR);
 67  0
         if(i < 0)
 68  
         {
 69  0
             throw new IllegalArgumentException("Expression is invalid: " + expressionString);
 70  
         }
 71  0
         this.evaluator = expressionString.substring(0, i);
 72  0
         this.expression = expressionString.substring(i+1);
 73  0
     }
 74  
 
 75  
     public void validate(ExpressionManager manager)
 76  
     {
 77  0
         if (expression == null)
 78  
         {
 79  0
             throw new IllegalArgumentException(CoreMessages.objectIsNull("expression").getMessage());
 80  
         }
 81  0
         if (evaluator == null)
 82  
         {
 83  0
             throw new IllegalArgumentException(CoreMessages.objectIsNull("evaluator").getMessage());
 84  
         }
 85  0
         if (CUSTOM_EVALUATOR.equalsIgnoreCase(evaluator))
 86  
         {
 87  0
             if (customEvaluator == null)
 88  
             {
 89  0
                 throw new IllegalArgumentException(CoreMessages.objectIsNull("custom evaluator").getMessage());
 90  
             }
 91  
             else
 92  
             {
 93  0
                 evaluator = customEvaluator;
 94  
             }
 95  
         }
 96  
 
 97  0
         if (!manager.isEvaluatorRegistered(evaluator))
 98  
         {
 99  0
             throw new IllegalArgumentException(CoreMessages.expressionEvaluatorNotRegistered(evaluator).getMessage());
 100  
         }
 101  0
     }
 102  
 
 103  
     public String getFullExpression(ExpressionManager manager)
 104  
     {
 105  0
         if (fullExpression == null)
 106  
         {
 107  0
             validate(manager);
 108  0
             fullExpression = expressionPrefix + evaluator + EXPRESSION_SEPARATOR + expression + expressionPostfix;
 109  
         }
 110  0
         return fullExpression;
 111  
     }
 112  
 
 113  
     public String getCustomEvaluator()
 114  
     {
 115  0
         return customEvaluator;
 116  
     }
 117  
 
 118  
     public void setCustomEvaluator(String customEvaluator)
 119  
     {
 120  0
         this.customEvaluator = StringUtils.trimToNull(customEvaluator);
 121  0
         fullExpression=null;        
 122  0
     }
 123  
 
 124  
     public String getEvaluator()
 125  
     {
 126  0
         return evaluator;
 127  
     }
 128  
 
 129  
     public void setEvaluator(String evaluator)
 130  
     {
 131  0
         this.evaluator = StringUtils.trimToNull(evaluator);
 132  0
         fullExpression=null;
 133  0
     }
 134  
 
 135  
     public String getExpression()
 136  
     {
 137  0
         return expression;
 138  
     }
 139  
 
 140  
     public void setExpression(String expression)
 141  
     {
 142  0
         this.expression = StringUtils.trimToEmpty(expression);
 143  0
         fullExpression=null;
 144  0
     }
 145  
 }