TextHandler extracting content when running code as Java App but not as Web App

["Khare, Kushal (MIND)" <Ku...@mind-infotech.com>]

Hello Mates, hope you are all doing good !

I am trying to integrate my Solr & Tika search utility code with my java web application.
The issue that I am facing is that I am unable to get the results (text handler is unable to extract any data) when I hit through my we app search page, that is , when I run my application on server. Whereas, when I independently run my utility method using main() function, I get the results.
Please help me with this, as I am unable to figure out this. I have checked all the jars, libs, etc. Everything is fine.
Following is the code that I am using :

package com.mind.qdms.utility;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.impl.HttpSolrClient;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.client.solrj.response.UpdateResponse;
import org.apache.solr.common.SolrDocument;
import org.apache.solr.common.SolrDocumentList;
import org.apache.solr.common.SolrInputDocument;
import org.apache.solr.common.params.MapSolrParams;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.parser.AutoDetectParser;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.sax.BodyContentHandler;
import org.xml.sax.ContentHandler;


public class QdmsSolrUtilityMethods {



         public static void main(String[] args) throws IOException,
         SolrServerException { QdmsSolrUtilityMethods.getDocsList("kushal"); }


       public static List<String> getDocsList(String keyword) throws IOException, SolrServerException {
              System.out.println("in util");
              HttpSolrClient client = new HttpSolrClient.Builder("http://localhost:8983/solr/tika").build();
              AutoDetectParser autoParser = new AutoDetectParser();
              indexTikaDocuments(new File("D:\\docs"), client, autoParser);
              List<String> resultDocList = queryDocuments(client, keyword);
              return resultDocList;
       }

       public static void indexTikaDocuments(File root,HttpSolrClient
         client,AutoDetectParser autoParser) throws IOException, SolrServerException {
         int totalTika = 0;

         @SuppressWarnings("rawtypes") Collection docList = new ArrayList();

         for (File file : root.listFiles()){
                if (file.isDirectory()) {
                       indexTikaDocuments(file,client,autoParser);
                       continue;
                }
                ContentHandler textHandler = new BodyContentHandler(-1);
                Metadata metadata = new Metadata();
                ParseContext context = new ParseContext();
                InputStream input = new
                FileInputStream(file);
                try {
                autoParser.parse(input, textHandler, metadata, context);
                }catch (Exception e) {
                System.out.println(String.format("File %s failed", file.getCanonicalPath()));
                e.printStackTrace();
                continue;
                }
                SolrInputDocument doc = new SolrInputDocument();
                doc.addField("id", file.getCanonicalPath());
                doc.addField("_text_", textHandler.toString());
                docList.add(doc);
                System.out.println(textHandler.toString());
                System.out.println( file.getCanonicalPath()); ++totalTika;
                // Completely arbitrary, just batch up more than one document for throughput!
                if(docList.size() >= 1000) {
                       // Commit within 5 minutes.
                       UpdateResponse resp = client.add(docList, 300000);
                       if (resp.getStatus() != 0) {
                             System.out.println("Some horrible error has occurred, status is: " +
                             resp.getStatus());
                             }
                       docList.clear();
                       }
                }if(docList.size() > 0) {
                       client.add(docList, 300000);
                     } client.commit();
                System.out.println("indexed " + totalTika + " documents");
                }

       public static List<String> queryDocuments(HttpSolrClient client1, String queryTerm) throws SolrServerException, IOException {
              List<String> resultList = null;
              HttpSolrClient client = new HttpSolrClient.Builder("http://localhost:8983/solr").build();

              final Map<String, String> queryParamMap = new HashMap<String, String>();
              queryParamMap.put("q", queryTerm);
              queryParamMap.put("rows", "5000");
              MapSolrParams queryParams = new MapSolrParams(queryParamMap);

              final QueryResponse response = client.query("tika", queryParams);
              final SolrDocumentList docList = response.getResults();

              System.out.println("docList ::  "+docList);
              System.out.println("docList size ::  "+docList.size());

              for (SolrDocument document : docList) {
                     final String id = (String) document.getFirstValue("id");
                     resultList.add(id);
              }
              return resultList;
       }


}


Kindly help me get through this.
Thanks !

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