/*
* PropertyEditorUtil.java
*
* Created on August 16, 2006, 7:09 PM
*
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
*/
package org.jdesktop.beans.editors;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
/**
*
* @author joshy
*/
public class PropertyEditorUtil {
//the text could be in many different formats. All of the supported formats are as follows:
//(where x and y are doubles of some form)
//[x,y]
//[x y]
//x,y]
//[x,y
//[ x , y ] or any other arbitrary whitespace
// x , y ] or any other arbitrary whitespace
//[ x , y or any other arbitrary whitespace
//x,y
// x , y (or any other arbitrary whitespace)
//x y
// (empty space)
//null
//[]
//[ ]
//any other value throws an IllegalArgumentException
public static Object createValueFromString(String text, int count, Class objectClass, Class paramClass) throws NoSuchMethodException, InstantiationException, IllegalAccessException, InvocationTargetException {
// strip all extra whitespace
text = text.replaceAll("[\\[|,| |\\]]"," ");
text = text.replaceAll("\\s+"," ");
text = text.trim();
// u.p("text = " + text);
if (text == null || text.equals("") || text.equals("null")) {
return null;
}
// split by spaces
String[] strs = text.split(" ");
// u.p("split:");
// u.p(strs);
// u.p("len = " + strs.length);
if(strs.length != count) {
return null;
}
Object[] params = new Object[count];
Class[] paramClasses = new Class[count];
for(int i=0; i<strs.length; i++) {
if(paramClass == int.class) {
params[i] = Integer.valueOf(strs[i]);
paramClasses[i] = paramClass;
}
if(paramClass == double.class) {
params[i] = Double.valueOf(strs[i]);
paramClasses[i] = paramClass;
}
}
// u.p("parms = ");
// u.p(params);
Constructor con = objectClass.getConstructor(paramClasses);
return con.newInstance(params);
}
}