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A lightweight framework for creating self-documenting Java servlets that can respond with XML and JSON.

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package org.dmilne.xjsf;

import javax.servlet.http.HttpServletRequest;
import org.simpleframework.xml.Element;
import com.google.gson.annotations.Expose;

@SuppressWarnings("serial")
public class UsageService extends Service{
	

	public UsageService() {
		super("meta","Provides information on how much you have been using the wikipedia miner web services, and what your limits are",
				"Provides information on how much you have been using the wikipedia miner web services, and what your limits are.", false
				);
	}

	@Override
	public Message buildWrappedResponse(HttpServletRequest request) throws Exception {
		
		return new Message(request, getHub().identifyClient(request)) ;
	}

	@Override 
	public int getUsageCost(HttpServletRequest request) {
		return 0 ;
	}
	
	public static class Message extends Service.Message {
		
		@Expose
		@Element
		private Client client ;
		
		private Message(HttpServletRequest request, Client c) {
			super(request) ;
			client = c ;
		}

		public Client getClient() {
			return client;
		}
	}
}