/*
 *    GS2MGRetrieve.java
 *    Copyright (C) 2002 New Zealand Digital Library, http://www.nzdl.org
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
package org.greenstone.gsdl3.service;

import org.greenstone.gsdl3.util.*;

import org.w3c.dom.Document; 
import org.w3c.dom.Node; 
import org.w3c.dom.Text; 
import org.w3c.dom.Element; 
import org.w3c.dom.NodeList; 
/**
 *
 * @author <a href="mailto:kjdon@cs.waikato.ac.nz">Katherine Don</a>
 * @version $Revision: 3649 $
 */

public class GS2MGRetrieve
    extends ServiceRack {

    // the services on offer
    private static final String DOCUMENT_RETRIEVE_SERVICE = "DocumentRetrieve";
    private static final String METADATA_RETRIEVE_SERVICE = "MetadataRetrieve";
    

    /** creates a display element containing all the text strings needed to display the service page, in the language specified */
    protected Element createServiceDisplay(String service, String lang) {
	Element display = doc_.createElement(GSXML.DISPLAY_ELEM);
	display.appendChild(GSXML.createTextElement(doc_, GSXML.DISPLAY_NAME_ELEM,  getTextString(service+".name", lang)));
	display.appendChild(GSXML.createTextElement(doc_,  GSXML.DISPLAY_SUBMIT_ELEM, getTextString(service+".submit", lang)));

	Element param;

	return display;
	
    }


    /** configure this service */
    public boolean configure(Element info) {

	System.out.println("configuring GS2MGRetrieve");

	Element e = null;
	// these entries should reflect the build config file - some services may not be available depending on how the colleciton was built.
	// set up short_service_info_ - for now just has name and type
	e = doc_.createElement(GSXML.SERVICE_ELEM);
	e.setAttribute(GSXML.TYPE_ATT, GSXML.SERVICE_TYPE_QUERY);
	e.setAttribute(GSXML.NAME_ATT, DOCUMENT_RETRIEVE_SERVICE);
	short_service_info_.appendChild(e);

	e = doc_.createElement(GSXML.SERVICE_ELEM);
	e.setAttribute(GSXML.TYPE_ATT, GSXML.SERVICE_TYPE_QUERY);
	e.setAttribute(GSXML.NAME_ATT, METADATA_RETRIEVE_SERVICE);
	short_service_info_.appendChild(e);


	// set up service_info_map_ - for now, just has the same elements as above
	// should have full details about each service incl params lists etc.
	e = doc_.createElement(GSXML.SERVICE_ELEM);
	e.setAttribute(GSXML.TYPE_ATT, GSXML.SERVICE_TYPE_QUERY);
	e.setAttribute(GSXML.NAME_ATT, DOCUMENT_RETRIEVE_SERVICE);
	service_info_map_.put(DOCUMENT_RETRIEVE_SERVICE, e);
	
	e = doc_.createElement(GSXML.SERVICE_ELEM);
	e.setAttribute(GSXML.TYPE_ATT, GSXML.SERVICE_TYPE_QUERY);
	e.setAttribute(GSXML.NAME_ATT, METADATA_RETRIEVE_SERVICE);
	service_info_map_.put(METADATA_RETRIEVE_SERVICE, e);

	return true;
    }
  /** retrieve a document */
    protected Element processDocumentRetrieve(Element request) {
	Element result = doc_.createElement(GSXML.RESPONSE_ELEM);
	result.setAttribute(GSXML.NAME_ATT, DOCUMENT_RETRIEVE_SERVICE);
	
	// dummy result
	Text t = null;
	t = doc_.createTextNode(DOCUMENT_RETRIEVE_SERVICE+" result... ");
	result.appendChild(t);
	return result;
    }

  /** retrieve metadata */
    protected Element processMetadataRetrieve(Element request) {
	Element result = doc_.createElement(GSXML.RESPONSE_ELEM);
	result.setAttribute(GSXML.NAME_ATT, METADATA_RETRIEVE_SERVICE);
	
	// dummy result
	Text t = null;
	t = doc_.createTextNode(METADATA_RETRIEVE_SERVICE+" result... ");
	result.appendChild(t);
	return result;
    }

}