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1 package org.infoglue.cms.util.sorters;
2
3 import java.util.Comparator  ;
4
5 import org.apache.commons.beanutils.PropertyUtils;
6 import org.apache.log4j.Logger;
7
8
13 public class ReflectionComparator implements Comparator
14 {
15 private final static Logger logger = Logger.getLogger(ReflectionComparator.class.getName());
16
17 private String sortProperty;
18
19 public ReflectionComparator(String prop)
20 {
21 sortProperty = prop;
22 }
23
24 public int compare(Object o1, Object o2)
25 {
26 Comparable valueOne = getProperty(o1, sortProperty);
27 Comparable valueTwo = getProperty(o2, sortProperty);
28 return valueOne.compareTo(valueTwo);
29 }
30
31 private Comparable getProperty(Object o, String property)
32 {
33 try
34 {
35 Object propertyObject = PropertyUtils.getProperty(o, sortProperty);
36 if(propertyObject instanceof String )
37 return (Comparable )propertyObject.toString().toLowerCase();
38 else
39 return (Comparable )propertyObject;
40 }
41 catch (Exception e)
42 {
43 logger.info(getClass().getName() + " Error finding property " + property, e);
44 return new Comparable ()
45 {
46 public int compareTo(Object o)
47 {
48 return 0;
49 }
50 };
51 }
52 }
53 }
54 |
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