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Author Message
thiagu
 Post subject: how to implement SnowballAnalyzer for indexing
PostPosted: Fri May 30, 2008 5:47 am 
Newbie

Joined: Fri Dec 28, 2007 7:38 am
Posts: 16
Hi everyone

I try to use the SnowballAnalyzer analyzer class for indexing and searching.
because i need to get the same search result for singular or plural search string.
But I got the following Exception
Code:
org.hibernate.search.SearchException: Failed to instantiate lucene analyzer with type org.apache.lucene.analysis.snowball.SnowballAnalyzer
   at org.hibernate.search.engine.DocumentBuilder.getAnalyzer(DocumentBuilder.java:123)
   at org.hibernate.search.engine.DocumentBuilder.getAnalyzer(DocumentBuilder.java:105)
   at org.hibernate.search.engine.DocumentBuilder.bindFieldAnnotation(DocumentBuilder.java:324)
   at org.hibernate.search.engine.DocumentBuilder.initializeMember(DocumentBuilder.java:220)
   at org.hibernate.search.engine.DocumentBuilder.initializeMembers(DocumentBuilder.java:167)
   at org.hibernate.search.engine.DocumentBuilder.initializeMember(DocumentBuilder.java:261)
   at org.hibernate.search.engine.DocumentBuilder.initializeMembers(DocumentBuilder.java:167)
   at org.hibernate.search.engine.DocumentBuilder.<init>(DocumentBuilder.java:94)
   at org.hibernate.search.impl.SearchFactoryImpl.initDocumentBuilders(SearchFactoryImpl.java:262)
   at org.hibernate.search.impl.SearchFactoryImpl.<init>(SearchFactoryImpl.java:94)
   at org.hibernate.search.impl.SearchFactoryImpl.getSearchFactory(SearchFactoryImpl.java:172)
   at org.hibernate.search.event.FullTextIndexEventListener.initialize(FullTextIndexEventListener.java:44)
   at org.hibernate.event.EventListeners.initializeListeners(EventListeners.java:356)
   at org.hibernate.cfg.Configuration.getInitializedEventListeners(Configuration.java:1304)
   at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1294)
   at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:713)
   at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:127)
   at org.jboss.ejb3.entity.PersistenceUnitDeployment.start(PersistenceUnitDeployment.java:246)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.jboss.ejb3.ServiceDelegateWrapper.startService(ServiceDelegateWrapper.java:103)
   at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
   at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
   at sun.reflect.GeneratedMethodAccessor13.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
   at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
   at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
   at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
   at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
   at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
   at $Proxy0.start(Unknown Source)
   at org.jboss.system.ServiceController.start(ServiceController.java:417)
   at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
   at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
   at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
   at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
   at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
   at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
   at $Proxy69.start(Unknown Source)
   at org.jboss.ejb3.JmxKernelAbstraction.install(JmxKernelAbstraction.java:120)
   at org.jboss.ejb3.Ejb3Deployment.startPersistenceUnits(Ejb3Deployment.java:627)
   at org.jboss.ejb3.Ejb3Deployment.start(Ejb3Deployment.java:351)
   at org.jboss.ejb3.Ejb3Module.startService(Ejb3Module.java:91)
   at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
   at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
   at sun.reflect.GeneratedMethodAccessor13.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
   at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
   at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
   at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
   at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
   at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
   at $Proxy0.start(Unknown Source)
   at org.jboss.system.ServiceController.start(ServiceController.java:417)
   at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
   at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
   at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
   at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
   at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
   at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
   at $Proxy33.start(Unknown Source)
   at org.jboss.ejb3.EJB3Deployer.start(EJB3Deployer.java:512)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
   at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
   at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
   at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
   at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
   at org.jboss.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97)
   at org.jboss.system.InterceptorServiceMBeanSupport.invokeNext(InterceptorServiceMBeanSupport.java:238)
   at org.jboss.wsf.container.jboss42.DeployerInterceptor.start(DeployerInterceptor.java:87)
   at org.jboss.deployment.SubDeployerInterceptorSupport$XMBeanInterceptor.start(SubDeployerInterceptorSupport.java:188)
   at org.jboss.deployment.SubDeployerInterceptor.invoke(SubDeployerInterceptor.java:95)
   at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
   at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
   at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
   at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
   at $Proxy34.start(Unknown Source)
   at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
   at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1015)
   at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
   at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
   at sun.reflect.GeneratedMethodAccessor21.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
   at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
   at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
   at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
   at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
   at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
   at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
   at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
   at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
   at $Proxy9.deploy(Unknown Source)
   at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
   at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634)
   at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
   at org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:336)
   at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
   at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
   at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
   at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
   at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
   at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
   at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
   at $Proxy0.start(Unknown Source)
   at org.jboss.system.ServiceController.start(ServiceController.java:417)
   at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
   at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
   at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
   at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
   at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
   at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
   at $Proxy4.start(Unknown Source)
   at org.jboss.deployment.SARDeployer.start(SARDeployer.java:302)
   at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
   at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
   at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
   at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:766)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
   at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
   at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
   at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
   at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
   at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
   at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
   at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
   at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
   at $Proxy5.deploy(Unknown Source)
   at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:482)
   at org.jboss.system.server.ServerImpl.start(ServerImpl.java:362)
   at org.jboss.Main.boot(Main.java:200)
   at org.jboss.Main$1.run(Main.java:508)
   at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.InstantiationException: org.apache.lucene.analysis.snowball.SnowballAnalyzer
   at java.lang.Class.newInstance0(Unknown Source)
   at java.lang.Class.newInstance(Unknown Source)
   at org.hibernate.search.engine.DocumentBuilder.getAnalyzer(DocumentBuilder.java:115)
   ... 161 more

This is my entity bean code
Code:
@Entity
@Table(name = "TBL_BRAND")
@Indexed
public class TblBrand  implements Serializable{
   
   private static final long serialVersionUID = 1L;
   
   public TblBrand() {
      super();
   }
   
   @Id
   @Column(name="BRAND_ID")
   @DocumentId
   private BigDecimal brandId;

   @Column(name="BRAND_NAME")   
   @Field(index=Index.TOKENIZED)
   @Analyzer(impl = SnowballAnalyzer.class)
   private String brandName;
}

This is my session bean code

Code:
Map<String,Float> boostPerField = new HashMap<String,Float>();
boostPerField.put("brandName", 2f);
String[] productFields = {"brandName"};
QueryParser parser = new MultiFieldQueryParser(productFields, new SnowballAnalyzer("English",StopAnalyzer.ENGLISH_STOP_WORDS), boostPerField);
parser.setAllowLeadingWildcard(true);          
luceneQuery = parser.parse(searchString);
FullTextQuery query =(FullTextEntityManager) em .createFullTextQuery(luceneQuery, TblBrand.class);

How to handle this exception
Any help please
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