lunzi

package cn.aweb.awebvideo.meetingRealTime.util;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Map;

import ognl.DefaultTypeConverter;

import com.opensymphony.xwork.XworkException;

public class DateConverter extends DefaultTypeConverter {
	 private static final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");  
	  
	    public Object convertValue(Map ognlContext, Object value, Class toType) {   
	        Object result = null;   
	        if (toType == Date.class) {   
	            result = doConvertToDate(value);   
	        } else if (toType == String.class) {   
	            result = doConvertToString(value);   
	        }   
	        return result;   
	    }   
	  
	    private Date doConvertToDate(Object value) {   
	        Date result = null;   
	  
	        if (value instanceof String) {   
	                try {
						result = sdf.parse((String) value);
					} catch (java.text.ParseException e) {
						throw new XworkException("Could not parse date", e); 
					}   
	                  
	        } else if (value instanceof Object[]) {   
	            Object[] array = (Object[]) value;   
	            if ((array != null) && (array.length >= 1)) {   
	                value = array[0];   
	                result = doConvertToDate(value);   
	            }   
	        } else if (Date.class.isAssignableFrom(value.getClass())) {   
	            result = (Date) value;   
	        }   
	        return result;   
	    }   
	  
	    private String doConvertToString(Object value) {   
	        String result = null;   
	        if (value instanceof Date) {   
	            result = sdf.format(value);   
	        }   
	        return result;   
	    }   

}