Java Reflection Invoking methods with primitive data types

/**
 * 
 */
package com.tsswireless.application.dispatch.config;
 
import java.io.File;
import java.lang.reflect.Method;
 
import org.w3c.dom.*;
 
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException; 
 
/**
 * <strong>LoadConfiguration</strong>, loads configuration parameters from StateManagerConfig.xml to its appropriate 
 * Class files.
 * 
 * @author Rama
 *
 */
public class LoadConfiguration {
 
	    public static void main (String argv []){
	    try {
 
	            DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
	            DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
	            Document doc = docBuilder.parse (new File("conf/StateManagerConfig.xml"));
 
	            // normalize text representation
	            doc.getDocumentElement ().normalize ();
	            System.out.println ("Root element of the doc is " + 
	                 doc.getDocumentElement().getNodeName());
 
 
	            NodeList classList = doc.getElementsByTagName("class");
	            int totalNoOfClasses = classList.getLength();
	            System.out.println("Total no of classes : " + totalNoOfClasses);
 
	            for(int s=0; s<classList.getLength() ; s++){
 
	                Node classNode = classList.item(s);
	                if(classNode.getNodeType() == Node.ELEMENT_NODE){
	                	
	                    Element classElement = (Element)classNode;
 
	                    //-------
	                    NodeList nameList = classElement.getElementsByTagName("name");
	                    Element classNameElement = (Element)nameList.item(0);
 
	                    String className = ((Node)classNameElement.getChildNodes().item(0)).getNodeValue().trim();
	                    System.out.println("Class Name : " + className );
	                    
	                    NodeList variableList = classElement.getElementsByTagName("variable");
	                    for(int i=0;i<variableList.getLength();i++){
	                    	Element variableElement = (Element)variableList.item(i);
	                    	NodeList variableNameList = variableElement.getElementsByTagName("name");
	                    	String variableNameElement = ((Node)variableNameList.item(0).getChildNodes().item(0)).getNodeValue().trim();
	                    	
	                    	NodeList variableValueList = variableElement.getElementsByTagName("value");
	                    	String variableValueElement = ((Node)variableValueList.item(0).getChildNodes().item(0)).getNodeValue().trim();
	                    	
	                    	NodeList variableTypeList = variableElement.getElementsByTagName("type");
	                    	String variableTypeElement = ((Node)variableTypeList.item(0).getChildNodes().item(0)).getNodeValue().trim();
	                    	
	                    	System.out.println("Variable :"+variableNameElement+ " value :"+variableValueElement
	                    			+" type :"+variableTypeElement);
	                    	
	                    	Class classtype = ClassLoader.getSystemClassLoader().loadClass(className);
	                    	
	                    	Method method1 = classtype.getMethod("set"+ variableNameElement.substring(0, 1).toUpperCase() +
		                    		variableNameElement.substring(1,variableNameElement.length()), getObjectType(variableTypeElement));
	                    	
	                    	if(variableTypeElement.equalsIgnoreCase("boolean")){
	                    		boolean value = false; 
	                    		if(variableValueElement.equals("true") || variableValueElement.equals("false")){
	            	    			value = variableValueElement.equalsIgnoreCase("true")?true:false;
	            	    		} else {
	            	    			value = variableValueElement.equalsIgnoreCase("1")?true:false;
	            	    		} 
	                    		method1.invoke(null, value);
	                    	} else {
	                    		method1.invoke(null, convertToObject(variableTypeElement, variableValueElement));
	                    	}
	                    	
	                    	System.out.println(method1.getName());
	                    }
 
 
	                }//end of if clause
 
 
	            }//end of for loop with s var
 
 
	        } catch (SAXParseException err) {
		        System.out.println ("** Parsing error" + ", line " 
		             + err.getLineNumber () + ", uri " + err.getSystemId ());
		        System.out.println(" " + err.getMessage ());
	        } catch (SAXException e) {
		        Exception x = e.getException ();
		        ((x == null) ? e : x).printStackTrace ();
	        } catch (Throwable t) {
	            t.printStackTrace ();
	        }
	        //System.exit (0);
 
	    }//end of main
	    
	    private static Object convertToObject(String dataType, String value) throws ClassNotFoundException, InstantiationException, IllegalAccessException{
	    	
	    	Object obj = null;
	    	if(dataType.equals("boolean")){
	    		
	    	} else {
	    		Class temp = Class.forName(dataType);
	    		if(temp == Double.class){
	    			obj = Double.valueOf(value);
	    		} else if(temp == Integer.class){
	    			obj = Integer.valueOf(value);
	    		} else if(temp == Short.class){
	    			obj = Short.valueOf(value);
	    		} else if(temp == Long.class){
	    			obj = Long.valueOf(value);
	    		} else if(temp == Float.class){
	    			obj = Float.valueOf(value);
	    		} else if(temp == Character.class){
	    			obj = String.valueOf(value);
	    		} else if(temp == Byte.class){
	    			obj = Byte.valueOf(value);
	    		} else if(temp == String.class){
	    			return value;
	    		} else {
	    			throw new UnsupportedOperationException("Unsupported Data type conversion, Type :"+dataType);
	    		}
	    	}
	    	return obj;
	    }
	    
	    private static Class getObjectType(String javaDataType) throws ClassNotFoundException{
	    	if(javaDataType.equals("boolean")){
	    		return java.lang.Boolean.TYPE;
	    	} else if(javaDataType.equals("int")){
	    		return java.lang.Integer.TYPE;
	    	} else if(javaDataType.equals("char")){
	    		return java.lang.Character.TYPE;
	    	} else if(javaDataType.equals("byte")){
	    		return java.lang.Byte.TYPE;
	    	} else if(javaDataType.equals("short")){
	    		return java.lang.Short.TYPE;
	    	} else if(javaDataType.equals("long")){
	    		return java.lang.Long.TYPE;
	    	} else if(javaDataType.equals("float")){
	    		return java.lang.Float.TYPE;
	    	} else if(javaDataType.equals("double")){
	    		return java.lang.Double.TYPE;
	    	} else if(javaDataType.equals("void")){
	    		return java.lang.Void.TYPE;
	    	} else
	    		return Class.forName(javaDataType);
	    	
	    }
 
}
                                  

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