/**
*
*/
package com.status.admin;

import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import org.hibernate.annotations.Entity;
import org.hibernate.search.annotations.DocumentId;
import org.hibernate.search.annotations.Field;
import org.hibernate.search.annotations.Index;
import org.hibernate.search.annotations.Indexed;
import org.hibernate.search.annotations.Store;


@Entity
@Indexed
public class Webpage {
   @Id @GeneratedValue
   @DocumentId
   
private long id;
@Field
private String mainsection;
@Field
private String title;
@Field
private String metatag;

@Field
public long getId() {
   return id;
}

public void setId(long id) {
   this.id = id;
}

public String getMainsection() {
   return mainsection;
}

public void setMainsection(String mainsection) {
   this.mainsection = mainsection;
}

public String getTitle() {
   return title;
}

public void setTitle(String title) {
   this.title = title;
}

public String getMetatag() {
   return metatag;
}

public void setMetatag(String metatag) {
   this.metatag = metatag;
}

@Override
public String toString() {
   return String.format("Webpage id=%d, title=%s, mainsection=%s...", id,
         title, mainsection == null ? "" : mainsection.substring(0, mainsection.length()>50 ? 50 : mainsection.length()));
}

}

/**
*
*/
package com.status.utils;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.queryParser.MultiFieldQueryParser;
import org.apache.lucene.queryParser.ParseException;
import org.apache.lucene.queryParser.QueryParser;
import org.hibernate.Session;
import org.hibernate.annotations.IndexColumn;
import org.hibernate.search.FullTextSession;
import org.hibernate.search.Search;
import com.opensymphony.xwork2.ActionSupport;
import com.status.admin.Webpage;
import com.status.hutil.HibernateUtil;
import com.status.hutil.SessionFactoryUtil;
import javax.persistence.*;
/**
* @author Anuja Garde, Status International Inc.
* Oct 5, 2010
* cms
*/
public class SearchText extends ActionSupport{
   private String texttosearch;
   private List searchresult;
   org.apache.lucene.search.Query luceneQuery;
   
   /**
    * @return the texttosearch
    */
   public String getTexttosearch() {
      texttosearch = texttosearch.replaceAll(" ", ",");
      return texttosearch;
   }

   /**
    * @param texttosearch the texttosearch to set
    */
   public void setTexttosearch(String texttosearch) {
      this.texttosearch = texttosearch;
   }

   public String populate(){
      
      Session session = HibernateUtil.getSessionFactory().openSession();
      String searchQuery ="i am title";
      String[] productFields = {"title", "mainsection","metatag"};
      Map<String,Float> boostPerField = new HashMap<String,Float>(3);
      boostPerField.put( "title",(float) 1);
      boostPerField.put( "mainsection", (float) 1);
      boostPerField.put( "metatag", (float) 1);
      QueryParser parser = new MultiFieldQueryParser(productFields,new StandardAnalyzer(),boostPerField);
      try {
      luceneQuery = parser.parse(searchQuery);
      FullTextSession fts = Search.getFullTextSession(session);
      org.hibernate.Query query = fts.createFullTextQuery(luceneQuery);
      query.setFirstResult(20).setMaxResults(20);
      List results = ((Query) query).getResultList();
      searchresult=results;
      for (Webpage item : (List<Webpage>) results) {
         System.out.println( "title: " + item.getTitle() + "\nDescription: " +
         item.getMainsection());
         }
      session.close();
      }
      catch (ParseException e) {
         //throw new RuntimeException("Unable to parse query: " + searchQuery, e);
      }
      return "populate";
   }
   
   public List getSearchResult(){
      return searchresult;
   }
   
}

/**
*
*/
package com.status.hutil;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.cfg.Configuration;

import org.hibernate.event.EventListeners;
import org.hibernate.event.LoadEvent;
import org.hibernate.event.LoadEventListener;
import org.hibernate.search.event.FullTextIndexEventListener;
import org.hibernate.search.store.FSDirectoryProvider;


import com.status.admin.Webpage;
import com.sun.xml.internal.ws.api.model.wsdl.WSDLBoundOperation.ANONYMOUS;

/**
* @author Anuja Garde, Status International Inc.
* Oct 7, 2010
* cms
*/
public class SessionFactoryUtil {
   private static final SessionFactory sessionFactory;

public SessionFactoryUtil(){};

static{
      try{
      AnnotationConfiguration cfg= new AnnotationConfiguration();
      cfg.setProperty("hibernate.search.default.indexBase","com/status/admin/Webpage");
      cfg.setListener("hibernate.search.default.directory_provider",new FSDirectoryProvider());
      cfg.setListener("post-update",new FullTextIndexEventListener());
      cfg.setListener("post-collection-recreate",new FullTextIndexEventListener());
      cfg.setListener("post-collection-remove",new FullTextIndexEventListener());
      cfg.setListener("post-collection-update",new FullTextIndexEventListener());
      cfg.addResource("hbms/webpage.hbm.xml");
      sessionFactory = cfg.configure().buildSessionFactory();
   }
      catch(Throwable ex){
         System.err.println("Initial Session Factory Creation Failed "+ex);
         ex.printStackTrace();
         throw new ExceptionInInitializerError(ex);
         
      }
   }
   public static SessionFactory getSessionFactory(){
      return sessionFactory;
   }

}

javax.servlet.ServletException: Filter execution threw an exception

root cause

java.lang.ExceptionInInitializerError
   com.status.hutil.HibernateUtil.<clinit>(HibernateUtil.java:35)
   com.status.interceptors.AppInitializer.getPathFromDb(AppInitializer.java:44)
   com.status.interceptors.AppInitializer.intercept(AppInitializer.java:36)
   com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
   org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
   org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488)
   org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
   org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)

root cause

org.hibernate.HibernateException: could not init listeners
   org.hibernate.event.EventListeners.initializeListeners(EventListeners.java:205)
   org.hibernate.cfg.Configuration.getInitializedEventListeners(Configuration.java:1396)
   org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1385)
   com.status.hutil.HibernateUtil.<clinit>(HibernateUtil.java:32)
   com.status.interceptors.AppInitializer.getPathFromDb(AppInitializer.java:44)
   com.status.interceptors.AppInitializer.intercept(AppInitializer.java:36)
   com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
   org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
   org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488)
   org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
   org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)

root cause

java.lang.NullPointerException
   org.hibernate.search.cfg.SearchConfigurationFromHibernateCore.getClassMapping(SearchConfigurationFromHibernateCore.java:31)
   org.hibernate.search.store.DirectoryProviderFactory.getDirectoryProviderName(DirectoryProviderFactory.java:226)
   org.hibernate.search.store.DirectoryProviderFactory.createDirectoryProviders(DirectoryProviderFactory.java:53)
   org.hibernate.search.impl.SearchFactoryImpl.initDocumentBuilders(SearchFactoryImpl.java:404)
   org.hibernate.search.impl.SearchFactoryImpl.<init>(SearchFactoryImpl.java:119)
   org.hibernate.search.event.ContextHolder.getOrBuildSearchFactory(ContextHolder.java:30)
   org.hibernate.search.event.FullTextIndexEventListener.initialize(FullTextIndexEventListener.java:59)
   org.hibernate.event.EventListeners$1.processListener(EventListeners.java:198)
   org.hibernate.event.EventListeners.processListeners(EventListeners.java:181)
   org.hibernate.event.EventListeners.initializeListeners(EventListeners.java:194)
   org.hibernate.cfg.Configuration.getInitializedEventListeners(Configuration.java:1396)
   org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1385)
   com.status.hutil.HibernateUtil.<clinit>(HibernateUtil.java:32)
   com.status.interceptors.AppInitializer.getPathFromDb(AppInitializer.java:44)
   com.status.interceptors.AppInitializer.intercept(AppInitializer.java:36)
   com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
   org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
   org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488)
   org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
   org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.