Coverage Report - org.mule.transformer.simple.StringToNumber
 
Classes in this File Line Coverage Branch Coverage Complexity
StringToNumber
0%
0/23
0%
0/6
0
 
 1  
 /*
 2  
  * $Id: StringToNumber.java 20320 2010-11-24 15:03:31Z dfeist $
 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  
 
 11  
 package org.mule.transformer.simple;
 12  
 
 13  
 import org.mule.api.transformer.DataType;
 14  
 import org.mule.api.transformer.DiscoverableTransformer;
 15  
 import org.mule.api.transformer.TransformerException;
 16  
 import org.mule.transformer.AbstractTransformer;
 17  
 import org.mule.transformer.types.DataTypeFactory;
 18  
 import org.mule.transformer.types.SimpleDataType;
 19  
 import org.mule.util.NumberUtils;
 20  
 
 21  
 import java.text.NumberFormat;
 22  
 
 23  
 /**
 24  
  * <code>StringToNumber</code> converts a String to a Number. A NumberFormat is used
 25  
  * if one is provided.
 26  
  */
 27  
 public class StringToNumber extends AbstractTransformer implements DiscoverableTransformer
 28  
 {
 29  
 
 30  
     private NumberFormat numberFormat;
 31  
 
 32  
     /**
 33  
      * Give core transformers a slighty higher priority
 34  
      */
 35  0
     private int priorityWeighting = DiscoverableTransformer.DEFAULT_PRIORITY_WEIGHTING + 1;
 36  
 
 37  
     public StringToNumber()
 38  0
     {
 39  0
         registerSourceType(new SimpleDataType<Object>(String.class));
 40  0
         setReturnDataType(DataTypeFactory.create(Number.class));
 41  0
     }
 42  
 
 43  
     public StringToNumber(NumberFormat numberFormat)
 44  
     {
 45  0
         this();
 46  0
         this.numberFormat = numberFormat;
 47  0
     }
 48  
 
 49  
     @SuppressWarnings("unchecked")
 50  
     @Override
 51  
     public Object doTransform(Object src, String encoding) throws TransformerException
 52  
     {
 53  0
         if (src == null)
 54  
         {
 55  0
             return null;
 56  
         }
 57  
         else
 58  
         {
 59  0
             if (numberFormat != null)
 60  
             {
 61  
                 try
 62  
                 {
 63  0
                     return NumberUtils.convertNumberToTargetClass(numberFormat.parse((String) src),
 64  
                         getReturnClass());
 65  
                 }
 66  0
                 catch (Exception e)
 67  
                 {
 68  0
                     throw new TransformerException(this, e);
 69  
                 }
 70  
             }
 71  
             else
 72  
             {
 73  0
                 return NumberUtils.parseNumber((String) src, getReturnClass());
 74  
             }
 75  
         }
 76  
     }
 77  
 
 78  
     @SuppressWarnings({"unchecked"})
 79  
     @Override
 80  
     public Class<? extends Number> getReturnClass()
 81  
     {
 82  0
         return (Class<Number>) super.getReturnDataType().getType();
 83  
     }
 84  
 
 85  
     @Override
 86  
     public void setReturnDataType(DataType<?> type)
 87  
     {
 88  0
         if (!Number.class.isAssignableFrom(type.getType()))
 89  
         {
 90  0
             throw new IllegalArgumentException("This transformer only supports Number return types.");
 91  
         }
 92  
         else
 93  
         {
 94  0
             super.setReturnDataType(type);
 95  
         }
 96  0
     }
 97  
 
 98  
     public int getPriorityWeighting()
 99  
     {
 100  0
         return priorityWeighting;
 101  
     }
 102  
 
 103  
     public void setPriorityWeighting(int priorityWeighting)
 104  
     {
 105  0
         this.priorityWeighting = priorityWeighting;
 106  0
     }
 107  
 
 108  
 }