EDIT

// $Id: RdfView.java 7281 2009-10-07 12:09:25Z ben.clark $

package eu.etaxonomy.cdm.remote.view;

import java.util.Enumeration;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.xml.transform.stream.StreamResult;

import org.dozer.Mapper;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.beans.factory.annotation.Qualifier;

import org.springframework.oxm.Marshaller;

import org.springframework.web.servlet.view.AbstractView;

import eu.etaxonomy.cdm.remote.dto.oaipmh.OAIPMH;

/**

 * View class which takes a MetadataResponse and returns the Source for serialization

 * @author ben

 * @see javax.xml.transform.Source

 * @see com.ibm.lsid.MetadataResponse

 */

public abstract class OaiPmhResponseView extends AbstractView {

	private Marshaller marshaller;

	protected Mapper mapper;

	@Autowired

	@Qualifier("marshaller")

	public void setMarshaller(Marshaller marshaller) {

		this.marshaller = marshaller;

	}

	@Autowired

	public void setMapper(Mapper mapper) {

		this.mapper = mapper;

	}

    protected abstract void constructResponse(OAIPMH oaiPmh,Map<String,Object> model);

    @Override

    protected void renderMergedOutputModel(Map<String,Object> model,HttpServletRequest request, HttpServletResponse response)

			throws Exception {

	    OAIPMH oaiPmh = new OAIPMH();

	    StringBuffer requestBuffer = request.getRequestURL();

	    if(!request.getParameterMap().isEmpty()) {

	    	int i = 0;

	    	Enumeration<String> parameterNames = request.getParameterNames();

	        while(parameterNames.hasMoreElements()) {

	        	String parameterName = parameterNames.nextElement();

	        	if(i == 0) {

	        		requestBuffer.append("?");

	        	} else {

	        		requestBuffer.append("&");

	        	}

	            requestBuffer.append(parameterName + "=" + request.getParameter(parameterName));

	        }

	    }

        model.put("request",requestBuffer.toString());

        constructResponse(oaiPmh,model);

		marshaller.marshal(oaiPmh, new StreamResult(response.getOutputStream()));

	}

}