WResourceFactory.java

package com.delcyon.capo.webapp.widgets;

import java.io.IOException;

import eu.webtoolkit.jwt.WResource;
import eu.webtoolkit.jwt.servlet.WebRequest;
import eu.webtoolkit.jwt.servlet.WebResponse;

/** this is just a wrapper class around WResource that less us use java 8 lambdas 
 * 
 * @author jeremiah
 *
 */
public abstract class WResourceFactory extends WResource
{
    
    @Override
    protected void handleRequest(WebRequest request, WebResponse response) throws IOException
    {
        handleRequestFunction(request, response);
        
    }

	/**
	 * method overridden by lambda expression
	 * @param input
	 * @return
	 */
	protected abstract void handleRequestFunction(WebRequest request, WebResponse response);
	
	/**
	 * factory method to to use a lambda to make a custom WResource
	 * {@link WResourceFactory#handleRequestFunction(WebRequest request, WebResponse response) handleRequest} method.
	 * @param WebRequest request
	 * @param WebResponse response	  
	 */
	public static WResource resource(WResourceInterface resourceInterface)
	{
		return new WResourceFactory()
		{
			@Override
			protected void handleRequestFunction(WebRequest request, WebResponse response)
			{
			    resourceInterface.handleRequestFunction(request, response);
			    
			}
		};
	}
	
	/**
	 * matches the handleRequestFunction method from WResource
	 *
	 */
	public interface WResourceInterface
	{		
		public abstract void handleRequestFunction(WebRequest request, WebResponse response);

	}
}