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package in.shop2020.serving.controllers;
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import in.shop2020.datalogger.EventType;
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import in.shop2020.serving.services.SolrSearchService;
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import in.shop2020.serving.utils.FileUtils;
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import in.shop2020.serving.utils.Utils;
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import in.shop2020.utils.DataLogger;
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import java.io.File;
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import java.io.UnsupportedEncodingException;
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import java.net.URLEncoder;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Map.Entry;
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import org.apache.commons.lang.StringUtils;
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import org.apache.log4j.Logger;
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import org.apache.struts2.convention.annotation.Result;
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/**
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 * @author rajveer
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 *
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 */
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@Result(name="redirect", location="${location}", type="redirect")
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public class SearchController extends BaseController {
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	private static final long serialVersionUID = -8392433517042806559L;
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	private static Logger log = Logger.getLogger(Class.class);
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	private List<String> results;
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	/**
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	 *
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	 */
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	private Map<String, String> snippets;
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	/**
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	 *
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	 */
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	private Map<String, List<String[]>> facets = null;
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	/**
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	 *
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	 */
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	private List<String[]> crumbs;
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	private String  query;
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	private String sortOrder = null;
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	private Double minPrice = null;
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	private Double maxPrice = null;
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	private long windowSize = 10;
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	private long page = 1;
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	private long totalResults;
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	private long beginIndex = 0;
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	private String url;
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	private String priceUrl = "?";
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	private long categoryId=10000;
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	private String sortUrl;
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	private String location;
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	/**
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	 *
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	 * @return
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	 * @throws UnsupportedEncodingException
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	 */
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    // GET /query
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    public String index() throws UnsupportedEncodingException {
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    	log.info("this.request=" + this.request);
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    	//url = this.request.getRequestURL();
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		query = this.request.getParameter("q");
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		url = "q="+ URLEncoder.encode(query, "UTF-8");
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		if(this.request.getParameter("category") != null){
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    		this.categoryId = Long.parseLong(this.request.getParameter("category"));
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    		url= url + "&category=" + this.request.getParameter("category");
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    	}
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		if(query.trim().isEmpty()){
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			if(categoryId == Utils.MOBILE_PHONES_CATEGORY){
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				location = "/all-mobile-phones/" + categoryId;
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				return "redirect";
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			}else if(categoryId == Utils.MOBILE_ACCESSORIES_CATEGORY){
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				location = "/all-mobile-accessories/" + categoryId;
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				return "redirect";
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			}else if(categoryId == Utils.TABLETS_CATEGORY){
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				location = "/all-tablets/" + categoryId;
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				return "redirect";
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			}else{
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				return "index";
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			}
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		}
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		sortUrl = url;
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		if(this.request.getParameter("sort") != null){
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    		url= url + "&sort=" + this.request.getParameter("sort");
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    		sortOrder = this.request.getParameter("sort");
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    	}
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		priceUrl += url;
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    	if(this.request.getParameter("page") != null){
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    		this.page = Long.parseLong(this.request.getParameter("page"));
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    		this.beginIndex = this.windowSize * (this.page-1);
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    	}
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    	if(this.request.getParameter("minPrice") != null){
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    		this.minPrice = (new Double(this.request.getParameter("minPrice")));
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    		url= url + "&minPrice=" + this.request.getParameter("minPrice");
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    	}
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    	if(this.request.getParameter("maxPrice") != null){
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    		this.maxPrice = (new Double(this.request.getParameter("maxPrice")));
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    		url= url + "&maxPrice=" + this.request.getParameter("maxPrice");
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    	}
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    	String[] fqrys = this.request.getParameterValues("fq");
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    	this.crumbs = new ArrayList<String[]>();
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    	String[] facetDefIDs = new String[] {"F_50010","F_50011","F_50002","F_50001",  "F_50006", "F_50007" };
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    	String[] facetLabels = new String[] {"Category","Sub Category","Price",
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    	    	"Brand", "Data Connectivity", "Camera Resolution"
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        	};
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    	String urlCrumb = "";
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    	if(query != null) {
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	    	urlCrumb = url;
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	    }else {
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    	}
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    	if(fqrys != null) {
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	    	log.info("fqrys=" + Arrays.toString(fqrys));
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	    	List<String> arrList = Arrays.asList(facetDefIDs);
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	    	for(int i=0; i<fqrys.length; i++){
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	    		urlCrumb += "&fq=" + URLEncoder.encode(fqrys[i], "UTF-8");
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	    		priceUrl += "&fq=" + URLEncoder.encode(fqrys[i], "UTF-8");
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	    		sortUrl += "&fq=" + URLEncoder.encode(fqrys[i], "UTF-8");
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	    		StringBuilder filterUrl = new StringBuilder(url);
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	    		String facetName = StringUtils.split(fqrys[i], ":")[0];
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	    		String facetValue = StringUtils.split(fqrys[i], ":")[1];
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	    		String facetLabel = facetLabels[arrList.indexOf(facetName)];
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	    		for(int j=0; j<fqrys.length; j++) {
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	    			if(i==j){
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	    				continue;
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	    			}
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	    			filterUrl.append("&fq=" + URLEncoder.encode(fqrys[j], "UTF-8"));
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		    	}
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	    		String[] acrumb = new String[] { facetLabel, facetValue, filterUrl.toString() };
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	    		log.info("acrumb=" + Arrays.toString(acrumb));
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	    		this.crumbs.add(acrumb);
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	    	}
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    	}
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    	url = urlCrumb;
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    	SolrSearchService search = new SolrSearchService(query, fqrys, facetDefIDs, (page-1)*windowSize, windowSize, minPrice, maxPrice, categoryId, sortOrder);
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    	this.results =  search.getResultMap();
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    	// Facets
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    	String qryString = this.request.getQueryString();
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    	log.info("qryString=" + qryString);
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		this.facets = new LinkedHashMap<String, List<String[]>>();
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    	for (int i=0; i<facetDefIDs.length; i++) {
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    		String facetDefID = facetDefIDs[i];
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    		String facetLabel = facetLabels[i];
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    		HashMap<String, Integer> facetDetailMap = search.getFacetDetails(facetDefID);
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    		if(facetDetailMap==null)
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    			continue;
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    		List<String[]> values = new ArrayList<String[]>();
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    		for(Entry<String, Integer> facetEntry : facetDetailMap.entrySet()){
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    		    String facet = facetEntry.getKey();
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    			String drilldownURL = url;
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      			drilldownURL += "&fq=" + facetDefID + ":" +
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    				URLEncoder.encode(facet, "UTF-8");
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      			String[] afacet = new String[] { facet,
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      			      facetEntry.getValue().toString(), drilldownURL  };
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      			values.add(afacet);
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188 
    		}
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190 
    		this.facets.put(facetLabel, values);
191 
    	}
192 
 
193 
    	Map<String, Double> priceMap = search.getPriceStatsMap();
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    	if(priceMap != null){
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    		this.minPrice = priceMap.get("min");
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    		this.maxPrice = priceMap.get("max");
197 
    	}else{
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    		this.minPrice = 0.0;
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    		this.maxPrice = 0.0;
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    	}
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    	this.totalResults = search.getTotalResults();
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        DataLogger.logData(EventType.PRODUCT_SEARCH, getSessionId(), userinfo.getUserId(), userinfo.getEmail(),
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                query, Long.toString(categoryId), Long.toString(totalResults));
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    	return "index";
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    }
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208 
 
209 
    public Map<String, String> getSnippets() throws Exception {
210 
    	if(results != null){
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    		snippets = new HashMap<String, String>();
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	    	for(String docId: results){
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				snippets.put(docId, FileUtils.read( Utils.EXPORT_ENTITIES_PATH + docId + File.separator +"SearchSnippet.html"));
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			}
215 
    	}
216 
		return snippets;
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    }
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219 
    /**
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     *
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     * @return
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     */
223 
    public String getQuery() {
224 
    	return this.query;
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    }
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    /**
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     *
230 
     * @return
231 
     */
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    public List<String> getResults() {
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    	return this.results;
234 
    }
235 
 
236 
    /**
237 
     *
238 
     * @return
239 
     */
240 
    public Map<String, List<String[]>> getFacets() {
241 
    	return this.facets;
242 
    }
243 
 
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    public long getTotalResults(){
245 
    	return totalResults;
246 
    }
247 
 
248 
    public String getUrl(){
249 
    	return this.url;
250 
    }
251 
 
252 
    public String getPriceUrl(){
253 
    	return this.priceUrl;
254 
    }
255 
 
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    public String getSortUrl(){
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    	return this.sortUrl;
258 
    }
259 
 
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	public long getBeginIndex(){
261 
		if(totalResults>0)
262 
			return beginIndex+1;
263 
		return beginIndex;
264 
	}
265 
 
266 
	public long getTotalPages() {
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		return 1 + (totalResults-1)/windowSize;
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	}
269 
 
270 
	public long getCurrentPage() {
271 
		return this.page;
272 
	}
273 
 
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    public Double getMinPrice() {
275 
    	return this.minPrice;
276 
    }
277 
 
278 
    public Double getMaxPrice() {
279 
    	return this.maxPrice;
280 
    }
281 
 
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    public List<String[]> getCrumbs() {
283 
    	return this.crumbs;
284 
    }
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786 rajveer 286 
    public String getSortOrder(){
287 
    	return this.sortOrder;
288 
    }
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290 
    public String getLocation(){
291 
    	return this.location;
292 
    }
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}