Coverage Report - org.mule.transformers.simple.ObjectToString
 
Classes in this File Line Coverage Branch Coverage Complexity
ObjectToString
97%
37/38
88%
21/24
6
 
 1  
 /*
 2  
  * $Id: ObjectToString.java 9680 2007-11-12 10:26:06Z dirk.olmes $
 3  
  * --------------------------------------------------------------------------------------
 4  
  * Copyright (c) MuleSource, Inc.  All rights reserved.  http://www.mulesource.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.transformers.simple;
 12  
 
 13  
 import org.mule.transformers.AbstractTransformer;
 14  
 import org.mule.umo.transformer.TransformerException;
 15  
 
 16  
 import java.util.Collection;
 17  
 import java.util.Iterator;
 18  
 import java.util.Map;
 19  
 
 20  
 /**
 21  
  * <code>ObjectToString</code> transformer is useful for debugging. It will return
 22  
  * human-readable output for various kinds of objects. Right now, it is just coded to
 23  
  * handle Map and Collection objects. Others will be added.
 24  
  */
 25  
 public class ObjectToString extends AbstractTransformer
 26  
 {
 27  
     protected static final int DEFAULT_BUFFER_SIZE = 80;
 28  
     protected static final String NULL_DESCRIPTION = "null";
 29  
 
 30  
     public ObjectToString()
 31  16
     {
 32  20
         registerSourceType(Object.class);
 33  16
         setReturnClass(String.class);
 34  16
     }
 35  
 
 36  
     public Object doTransform(Object src, String encoding) throws TransformerException
 37  
     {
 38  8
         String output = "";
 39  
 
 40  8
         if (src instanceof Map)
 41  
         {
 42  4
             Iterator iter = ((Map) src).entrySet().iterator();
 43  4
             if (iter.hasNext())
 44  
             {
 45  4
                 StringBuffer b = new StringBuffer(DEFAULT_BUFFER_SIZE);
 46  12
                 while (iter.hasNext())
 47  
                 {
 48  8
                     Map.Entry e = (Map.Entry) iter.next();
 49  8
                     Object key = e.getKey();
 50  8
                     Object value = e.getValue();
 51  8
                     b.append(key.toString()).append(':');
 52  8
                     if (value != null)
 53  
                     {
 54  4
                         b.append(value.toString());
 55  
                     }
 56  
                     else
 57  
                     {
 58  4
                         b.append(NULL_DESCRIPTION);
 59  
                     }
 60  8
                     if (iter.hasNext())
 61  
                     {
 62  4
                         b.append('|');
 63  
                     }
 64  8
                 }
 65  4
                 output = b.toString();
 66  
             }
 67  4
         }
 68  4
         else if (src instanceof Collection)
 69  
         {
 70  4
             Iterator iter = ((Collection) src).iterator();
 71  4
             if (iter.hasNext())
 72  
             {
 73  4
                 StringBuffer b = new StringBuffer(DEFAULT_BUFFER_SIZE);
 74  16
                 while (iter.hasNext())
 75  
                 {
 76  12
                     Object value = iter.next();
 77  12
                     if (value != null)
 78  
                     {
 79  8
                         b.append(value.toString());   
 80  
                     }
 81  
                     else
 82  
                     {
 83  4
                         b.append(NULL_DESCRIPTION);
 84  
                     }
 85  
                     
 86  12
                     if (iter.hasNext())
 87  
                     {
 88  8
                         b.append('|');
 89  
                     }
 90  12
                 }
 91  4
                 output = b.toString();
 92  
             }
 93  4
         }
 94  
         else
 95  
         {
 96  0
             output = src.toString();
 97  
         }
 98  
 
 99  8
         return output;
 100  
     }
 101  
 
 102  
 }