package org.infoglue.cms.util.sorters;
import java.io.File;
import java.util.Comparator;
import org.apache.log4j.Logger;
/**
* Sort on either file size or modified date
*
* @author Mattias Bogeblad
*/
public class FileComparator implements Comparator<Object>
{
private final static Logger logger = Logger.getLogger(FileComparator.class.getName());
private String sortProperty;
public FileComparator(String prop)
{
sortProperty = prop;
}
public int compare(Object o1, Object o2)
{
Comparable valueOne = getProperty(o1, sortProperty);
Comparable valueTwo = getProperty(o2, sortProperty);
return valueOne.compareTo(valueTwo);
}
private Comparable getProperty(Object o, String property)
{
try
{
if(property.equals("lastModified"))
return new Long(((File)o).lastModified());
else if(property.equals("length"))
return new Long(((File)o).length());
else
return (File)o;
}
catch (Exception e)
{
logger.warn(getClass().getName() + " Error finding property " + property, e);
return new Comparable()
{
public int compareTo(Object o)
{
return 0;
}
};
}
}
}