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ashish |
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/**
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*
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*/
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package in.shop2020.serving.services;
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rajveer |
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.LinkedHashMap;
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import java.util.Map;
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import java.util.TreeMap;
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import java.util.Map.Entry;
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ashish |
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import javax.xml.xpath.XPath;
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import javax.xml.xpath.XPathConstants;
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import javax.xml.xpath.XPathExpressionException;
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import javax.xml.xpath.XPathFactory;
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import org.apache.juli.logging.Log;
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import org.apache.juli.logging.LogFactory;
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rajveer |
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import org.w3c.dom.NamedNodeMap;
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ashish |
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import org.w3c.dom.Node;
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import org.w3c.dom.NodeList;
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import org.xml.sax.InputSource;
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rajveer |
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import org.apache.commons.lang.StringUtils;
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ashish |
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/**
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* @author naveen
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*
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*/
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public class SolrSearchService {
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/**
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*
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*/
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private static Log log = LogFactory.getLog(SolrSearchService.class);
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rajveer |
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private static final int NUMBER_OF_ROWS = 20, PERCENTAGE_OF_TOTAL_RESULTS = 2;
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ashish |
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/**
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*
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*/
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public static String SOLR_URL = "http://localhost:8983/solr/select/";
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/**
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*
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*/
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private XPath xpath;
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/**
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*
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*/
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private InputSource inputSource;
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rajveer |
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private String minPrice = "0";
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private String maxPrice = "*";
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TreeMap<String,HashMap<String,Integer>> facetMap;
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HashMap<String, String[]> resultMap;
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ashish |
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/**
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*
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* @param query
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* @param facetDefinitionIDs
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*/
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rajveer |
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public SolrSearchService(String query, String[] facetqueries, String[] facetDefinitionIDs) {
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ashish |
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this.xpath = XPathFactory.newInstance().newXPath();
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String uri = SOLR_URL + "?wt=xml&q=" + query;
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rajveer |
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/*
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if(facetqueries.containsKey("minPrice")){
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this.minPrice = facetqueries.get("minPrice");
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}else {
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this.minPrice = "0";
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}
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if(facetqueries.containsKey("maxPrice")){
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this.maxPrice = facetqueries.get("minPrice");
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}else {
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this.maxPrice = "*";
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}
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facetqueries.remove("minPrice");
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facetqueries.remove("maxPrice");
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*/
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// query for price filtering
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//uri += "&facet.query=F_50002:[" + minPrice + " TO " + maxPrice + "]";
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// get stats for price field
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uri += "&stats=on&stats.field=F_50002";
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//
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// if(facetqueries.containsKey("maxPrice")){
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// if(facetqueries.containsKey("minPrice")){
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// uri += "&fq=price:["+facetqueries.get("minPrice")+" TO "+ facetqueries.get("maxPrice")+"]";
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// }else {
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// uri += "&fq=price:[0 TO "+ facetqueries.get("minPrice")+"]";
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// }
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//
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// }
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// for(String facetParam : facetqueries.keySet()){
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// uri += "&fq=" + facetParam + ":" + facetqueries.get(facetParam);
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// }
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ashish |
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if(facetqueries != null) {
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for(int i=0; i<facetqueries.length; i++) {
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rajveer |
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// if(StringUtils.split(facetqueries[i], ":")[0].equals("minPrice") || StringUtils.split(facetqueries[i], ":")[0].equals("maxPrice")){
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// if(StringUtils.split(facetqueries[i], ":")[0].equals("maxPrice")){
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// this.maxPrice = StringUtils.split(facetqueries[i], ":")[1];
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// }else{
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// this.minPrice = StringUtils.split(facetqueries[i], ":")[1];
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// }
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//
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// }else{
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rajveer |
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uri += "&fq=" + facetqueries[i] + "";
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rajveer |
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// }
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ashish |
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}
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}
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rajveer |
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// uri += "&fq=F_50002:[" + this.minPrice + " TO " + this.maxPrice + "]";
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uri += "&fl=ID,Name&facet=true&rows=" + NUMBER_OF_ROWS;
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// uri += "&facet.field=Category";
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ashish |
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for(int i=0; i<facetDefinitionIDs.length; i++) {
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rajveer |
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uri += "&facet.field=" + facetDefinitionIDs[i];
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ashish |
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}
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log.info("uri=" + uri);
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this.inputSource = new InputSource(uri);
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rajveer |
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this.facetMap = new TreeMap<String, HashMap<String,Integer>>(getFacetMap());
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ashish |
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}
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rajveer |
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public static void main(String[] args){
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rajveer |
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/*
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rajveer |
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// Hard coded for now
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String[] facetDefIDs = new String[] {"F_50001", "F_50002", "F_50003", "F_50004", "F_50005", "F_50006", "F_50007", "F_50008", "F_50009"};
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rajveer |
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rajveer |
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// Hard-coded for now
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String[] facetLabels = new String[] {
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"Brand", "Price","Form Factor", "Carry In Pocket", "Cellular Technologies",
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"Data Connectivity", "Camera Resolution", "Built-in Memory",
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"Talk time"
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};
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rajveer |
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*/
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String[] facetDefIDs = new String[] {"Category","F_50002","F_50001", "F_50006", "F_50007" };
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String[] facetLabels = new String[] {"Category","Price", "Brand", "Data Connectivity", "Camera Resolution" };
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rajveer |
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// HashMap<String,String> fqrys = new HashMap<String, String>();
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String[] fqrys = {};
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// fqrys.put("minPrice", "10");
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SolrSearchService search = new SolrSearchService("nokia", fqrys, facetDefIDs);
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long[] entityIDs = search.getResultEntityIDs();
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log.info("entityIDs=" + Arrays.toString(entityIDs));
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String[] entityNames = search.getResultEntityNames();
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log.info("entityNames=" + Arrays.toString(entityNames));
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search.getFacetMap();
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search.getResultMap();
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search.getRangeQueryResultMap();
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search.getPriceStatsMap();
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for (int i=0; i<facetDefIDs.length; i++) {
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search.getFacetCounts(facetDefIDs[i]);
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search.getFacetValues(facetDefIDs[i]);
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}
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}
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public TreeMap<String,HashMap<String,Integer>> removeUnwantedFacets(TreeMap<String,HashMap<String,Integer>> facetMap, int numberOfResults){
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TreeMap<String,HashMap<String,Integer>> tempFacets = new TreeMap<String, HashMap<String,Integer>>(facetMap);
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for(String facet : facetMap.keySet()){
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rajveer |
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if(facetMap.get(facet).size() <= 1){
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rajveer |
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// FIXME
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rajveer |
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tempFacets.remove(facet);
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rajveer |
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}else{
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int sumOfFacetCounts = 0;
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for(String facetValueName : facetMap.get(facet).keySet()){
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rajveer |
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if(facetMap.get(facet).get(facetValueName) == 0 || facetMap.get(facet).get(facetValueName) == numberOfResults){
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rajveer |
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tempFacets.get(facet).remove(facetValueName);
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rajveer |
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/*
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HashMap<String, Integer> tmp = tempFacets.get(facet);
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tmp.remove(facetValueName);
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tempFacets.put(facet, tmp);
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*/
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rajveer |
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}else{
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sumOfFacetCounts += facetMap.get(facet).get(facetValueName);
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}
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}
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if(sumOfFacetCounts < numberOfResults*PERCENTAGE_OF_TOTAL_RESULTS/100){
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tempFacets.remove(facet);
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}
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}
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}
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return tempFacets;
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}
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public HashMap<String,Integer> getFacetDetails(String facetName){
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return facetMap.get(facetName);
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}
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public TreeMap<String,HashMap<String,Integer>> getFacetMap() {
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facetMap = new TreeMap<String,HashMap<String,Integer>>();
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String facetNamePath = "/response/lst/lst[@name = 'facet_fields']/lst";
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String facetValuePath = "/response/lst/lst[@name = 'facet_fields']/lst/int/@name";
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String facetCountPath = "/response/lst/lst[@name = 'facet_fields']/lst/int";
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//expression += "lst[@name = 'F_"+ facetDefinitionID +"']/int/@name";
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NodeList nodes = null;
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try {
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nodes = (NodeList) this.xpath.evaluate(facetNamePath, this.inputSource, XPathConstants.NODESET);
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}
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catch (XPathExpressionException xpee) {
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return null;
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}
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if(nodes.getLength() == 0) {
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return null;
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}
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NodeList subNodes = null;
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String facetName = new String();
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for(int i=0; i<nodes.getLength(); i++) {
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Node node = nodes.item(i);
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facetName = node.getAttributes().getNamedItem("name").getNodeValue();
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// System.out.println("facetName : " + node.getAttributes().getNamedItem("name").getNodeValue());
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subNodes = node.getChildNodes();
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HashMap<String,Integer> facetValueCountMap = new HashMap<String,Integer>();
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for(int j=0; j<subNodes.getLength(); j++) {
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Node subNode = subNodes.item(j);
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if(Integer.parseInt(subNode.getTextContent())==0)
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continue;
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facetValueCountMap.put(subNode.getAttributes().getNamedItem("name").getNodeValue(), Integer.parseInt(subNode.getTextContent()));
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// System.out.println("facetValue : " + subNode.getTextContent() + ":"+ subNode.getAttributes().getNamedItem("name").getNodeValue());
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}
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//System.out.println(facetName +":"+ facetValueCountMap);
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facetMap.put(facetName, facetValueCountMap);
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}
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System.out.println(facetMap);
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rajveer |
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rajveer |
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int numberOfResults = 10;
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rajveer |
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rajveer |
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facetMap = removeUnwantedFacets(facetMap, numberOfResults);
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System.out.println(facetMap);
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return facetMap;
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}
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public HashMap<String, String[]> getResultMap() {
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resultMap = new HashMap<String, String[]>();
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String resultDocsPath = "/response/result/doc";
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NodeList nodes = null;
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try {
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nodes = (NodeList) this.xpath.evaluate(resultDocsPath, this.inputSource, XPathConstants.NODESET);
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}
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catch (XPathExpressionException xpee) {
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return null;
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}
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if(nodes.getLength() == 0) {
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return null;
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}
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for(int i=0; i<nodes.getLength(); i++) {
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Node node = nodes.item(i);
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String docID = node.getFirstChild().getTextContent();
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String[] values = new String[] {node.getFirstChild().getNextSibling().getTextContent()};
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resultMap.put(docID, values);
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}
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System.out.println("resultMap is " + resultMap);
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return resultMap;
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}
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public HashMap<String, Double> getPriceStatsMap() {
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HashMap<String, Double> priceStatsMap = new HashMap<String, Double>();
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String resultDocsPath = "/response/lst[@name = 'stats']/lst[@name = 'stats_fields']/lst[@name = 'F_50002']";
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NodeList nodes = null;
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try {
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nodes = (NodeList) this.xpath.evaluate(resultDocsPath, this.inputSource, XPathConstants.NODESET);
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}
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catch (XPathExpressionException xpee) {
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return null;
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}
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if(nodes.getLength() == 0) {
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return null;
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}
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NodeList subNodes = nodes.item(0).getChildNodes();
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for(int i=0; i<subNodes.getLength(); i++) {
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Node node = subNodes.item(i);
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String parameter = node.getAttributes().getNamedItem("name").getNodeValue();
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String value = node.getTextContent();
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priceStatsMap.put(parameter, Double.parseDouble(value));
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}
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System.out.println("priceStatsMap is " + priceStatsMap);
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return priceStatsMap;
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}
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public HashMap<String,Integer> getRangeQueryResultMap() {
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HashMap<String, Integer> rangeQueryResultMap = new HashMap<String,Integer>();
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String resultDocsPath = "/response/lst[@name = 'facet_counts']/lst[@name = 'facet_queries']/int";
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NodeList nodes = null;
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try {
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nodes = (NodeList) this.xpath.evaluate(resultDocsPath, this.inputSource, XPathConstants.NODESET);
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}
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catch (XPathExpressionException xpee) {
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return null;
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}
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332 |
if(nodes.getLength() == 0) {
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return null;
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}
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337 |
for(int i=0; i<nodes.getLength(); i++) {
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338 |
Node node = nodes.item(i);
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339 |
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340 |
String query = node.getAttributes().getNamedItem("name").getNodeValue();
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341 |
String docCount = node.getTextContent();
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342 |
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343 |
rangeQueryResultMap.put(query,Integer.parseInt(docCount));
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|
344 |
}
|
|
|
345 |
System.out.println("rangeQueryResultMap is " + rangeQueryResultMap);
|
|
|
346 |
return rangeQueryResultMap;
|
|
|
347 |
|
|
|
348 |
}
|
|
|
349 |
|
|
|
350 |
/**
|
| 317 |
ashish |
351 |
*
|
|
|
352 |
* @return
|
|
|
353 |
*/
|
|
|
354 |
public long[] getResultEntityIDs() {
|
|
|
355 |
String expression = "/response/result/doc/long";
|
|
|
356 |
|
|
|
357 |
NodeList nodes = null;
|
|
|
358 |
try {
|
|
|
359 |
nodes = (NodeList) this.xpath.evaluate(expression, this.inputSource,
|
|
|
360 |
XPathConstants.NODESET);
|
|
|
361 |
}
|
|
|
362 |
catch(XPathExpressionException xpee) {
|
|
|
363 |
return null;
|
|
|
364 |
}
|
|
|
365 |
|
|
|
366 |
if(nodes.getLength() == 0) {
|
|
|
367 |
return null;
|
|
|
368 |
}
|
|
|
369 |
|
|
|
370 |
long[] values = new long[nodes.getLength()];
|
|
|
371 |
for(int i=0; i<nodes.getLength(); i++) {
|
|
|
372 |
Node node = nodes.item(i);
|
|
|
373 |
String value = node.getTextContent();
|
|
|
374 |
values[i] = Long.parseLong(value);
|
|
|
375 |
}
|
|
|
376 |
|
|
|
377 |
return values;
|
|
|
378 |
}
|
|
|
379 |
|
|
|
380 |
/**
|
|
|
381 |
*
|
|
|
382 |
* @return
|
|
|
383 |
*/
|
|
|
384 |
public String[] getResultCategoryNames() {
|
|
|
385 |
String expression = "/response/lst/lst[@name = 'facet_fields']/";
|
|
|
386 |
expression += "lst[@name = 'Category']/int/@name";
|
|
|
387 |
|
|
|
388 |
NodeList nodes = null;
|
|
|
389 |
try {
|
|
|
390 |
nodes = (NodeList) this.xpath.evaluate(expression,
|
|
|
391 |
this.inputSource, XPathConstants.NODESET);
|
|
|
392 |
}
|
|
|
393 |
catch (XPathExpressionException xpee) {
|
|
|
394 |
return null;
|
|
|
395 |
}
|
|
|
396 |
|
|
|
397 |
if(nodes.getLength() == 0) {
|
|
|
398 |
return null;
|
|
|
399 |
}
|
|
|
400 |
|
|
|
401 |
String[] values = new String[nodes.getLength()];
|
|
|
402 |
for(int i=0; i<nodes.getLength(); i++) {
|
|
|
403 |
Node node = nodes.item(i);
|
|
|
404 |
values[i] = node.getTextContent();
|
|
|
405 |
}
|
|
|
406 |
|
|
|
407 |
return values;
|
|
|
408 |
}
|
|
|
409 |
|
|
|
410 |
/**
|
|
|
411 |
*
|
|
|
412 |
* @return
|
|
|
413 |
*/
|
|
|
414 |
public int[] getResultCategoryCounts() {
|
|
|
415 |
String expression = "/response/lst/lst[@name = 'facet_fields']/";
|
|
|
416 |
expression += "lst[@name = 'Category']/int";
|
|
|
417 |
|
|
|
418 |
NodeList nodes = null;
|
|
|
419 |
try {
|
|
|
420 |
nodes = (NodeList) this.xpath.evaluate(expression,
|
|
|
421 |
this.inputSource, XPathConstants.NODESET);
|
|
|
422 |
}
|
|
|
423 |
catch (XPathExpressionException xpee) {
|
|
|
424 |
return null;
|
|
|
425 |
}
|
|
|
426 |
|
|
|
427 |
if(nodes.getLength() == 0) {
|
|
|
428 |
return null;
|
|
|
429 |
}
|
|
|
430 |
|
|
|
431 |
int[] values = new int[nodes.getLength()];
|
|
|
432 |
for(int i=0; i<nodes.getLength(); i++) {
|
|
|
433 |
Node node = nodes.item(i);
|
|
|
434 |
values[i] = Integer.parseInt(node.getTextContent());
|
|
|
435 |
}
|
|
|
436 |
|
|
|
437 |
return values;
|
|
|
438 |
}
|
|
|
439 |
|
|
|
440 |
/**
|
|
|
441 |
*
|
|
|
442 |
* @return
|
|
|
443 |
*/
|
|
|
444 |
public String[] getResultEntityNames() {
|
|
|
445 |
String expression = "/response/result/doc/str";
|
|
|
446 |
|
|
|
447 |
NodeList nodes = null;
|
|
|
448 |
try {
|
|
|
449 |
nodes = (NodeList) this.xpath.evaluate(expression, this.inputSource,
|
|
|
450 |
XPathConstants.NODESET);
|
|
|
451 |
}
|
|
|
452 |
catch(XPathExpressionException xpee) {
|
|
|
453 |
return null;
|
|
|
454 |
}
|
|
|
455 |
|
|
|
456 |
if(nodes.getLength() == 0) {
|
|
|
457 |
return null;
|
|
|
458 |
}
|
|
|
459 |
|
|
|
460 |
String[] values = new String[nodes.getLength()];
|
|
|
461 |
for(int i=0; i<nodes.getLength(); i++) {
|
|
|
462 |
Node node = nodes.item(i);
|
|
|
463 |
String value = node.getTextContent();
|
|
|
464 |
values[i] = value;
|
|
|
465 |
}
|
|
|
466 |
|
|
|
467 |
return values;
|
|
|
468 |
}
|
|
|
469 |
|
|
|
470 |
/**
|
|
|
471 |
*
|
|
|
472 |
* @param facetDefinitionID
|
|
|
473 |
* @return
|
|
|
474 |
*/
|
| 354 |
rajveer |
475 |
public String[] getFacetValues(String facetDefinitionID) {
|
| 317 |
ashish |
476 |
String expression = "/response/lst/lst[@name = 'facet_fields']/";
|
| 354 |
rajveer |
477 |
expression += "lst[@name = '"+ facetDefinitionID +"']/int/@name";
|
| 317 |
ashish |
478 |
|
|
|
479 |
NodeList nodes = null;
|
|
|
480 |
try {
|
|
|
481 |
nodes = (NodeList) this.xpath.evaluate(expression,
|
|
|
482 |
this.inputSource, XPathConstants.NODESET);
|
|
|
483 |
}
|
|
|
484 |
catch (XPathExpressionException xpee) {
|
|
|
485 |
return null;
|
|
|
486 |
}
|
|
|
487 |
|
|
|
488 |
if(nodes.getLength() == 0) {
|
|
|
489 |
return null;
|
|
|
490 |
}
|
|
|
491 |
|
|
|
492 |
String[] values = new String[nodes.getLength()];
|
|
|
493 |
for(int i=0; i<nodes.getLength(); i++) {
|
|
|
494 |
Node node = nodes.item(i);
|
|
|
495 |
values[i] = node.getTextContent();
|
| 354 |
rajveer |
496 |
//log.info("Facets Values " + values[i]);
|
| 317 |
ashish |
497 |
}
|
|
|
498 |
|
|
|
499 |
return values;
|
|
|
500 |
}
|
|
|
501 |
|
|
|
502 |
/**
|
|
|
503 |
*
|
|
|
504 |
* @param facetDefinitionID
|
|
|
505 |
* @return
|
|
|
506 |
*/
|
| 354 |
rajveer |
507 |
public String[] getFacetCounts(String facetDefinitionID) {
|
| 317 |
ashish |
508 |
String expression = "/response/lst/lst[@name = 'facet_fields']/";
|
| 354 |
rajveer |
509 |
expression += "lst[@name = '" + facetDefinitionID + "']/int";
|
| 317 |
ashish |
510 |
|
|
|
511 |
NodeList nodes = null;
|
|
|
512 |
try {
|
|
|
513 |
nodes = (NodeList) this.xpath.evaluate(expression,
|
|
|
514 |
this.inputSource, XPathConstants.NODESET);
|
|
|
515 |
}
|
|
|
516 |
catch (XPathExpressionException xpee) {
|
|
|
517 |
return null;
|
|
|
518 |
}
|
|
|
519 |
|
|
|
520 |
if(nodes.getLength() == 0) {
|
|
|
521 |
return null;
|
|
|
522 |
}
|
|
|
523 |
|
|
|
524 |
String[] values = new String[nodes.getLength()];
|
|
|
525 |
for(int i=0; i<nodes.getLength(); i++) {
|
|
|
526 |
Node node = nodes.item(i);
|
|
|
527 |
values[i] = node.getTextContent();
|
| 354 |
rajveer |
528 |
// log.info("Facets Counts " + values[i]);
|
| 317 |
ashish |
529 |
}
|
|
|
530 |
|
|
|
531 |
return values;
|
|
|
532 |
}
|
|
|
533 |
}
|