Пытаюсь настроить HibernateSearch для интеграции ElasticSearch.У меня есть таблица Product в моей базе данных оракула.Из этой таблицы я пытаюсь найти по названию продукта.
Для этого я пытаюсь интегрировать HibernateSearch (ElasticSearch) вместе с базой данных oracle.
Получаю приведенную ниже ошибку от HibernateSearch:
Я использую базу данных Oracle и добавил необходимые зависимостив моем файле pom.xml
Exception in thread "main" java.lang.IllegalArgumentException: java.lang.Object is not an indexed entity or a subclass of an indexed entity
at org.hibernate.search.batchindexing.impl.MassIndexerImpl.toRootEntities(MassIndexerImpl.java:87)
at org.hibernate.search.batchindexing.impl.MassIndexerImpl.<init>(MassIndexerImpl.java:63)
at org.hibernate.search.batchindexing.impl.DefaultMassIndexerFactory.createMassIndexer(DefaultMassIndexerFactory.java:33)
at org.hibernate.search.impl.FullTextSessionImpl.createIndexer(FullTextSessionImpl.java:175)
at com.test.webservice.elasticsearch.App.doIndex(App.java:36)
at com.test.webservice.elasticsearch.App.main(App.java:109)
Использую все последние зависимости.
hibernate-search-orm ->5.9.1.Final
hibernate-core ->5.2.16.Final`
ojdbc14 -> 10.2.0.4.0
App.java
public class App
{
private static void doIndex() throws InterruptedException {
Session session = HibernateUtil.getSession();
FullTextSession fullTextSession = Search.getFullTextSession(session);
fullTextSession.createIndexer().startAndWait(); // Error occuring on this line
fullTextSession.close();
}
private static List<Product> search(String queryString) {
Session session = HibernateUtil.getSession();
FullTextSession fullTextSession = Search.getFullTextSession(session);
QueryBuilder queryBuilder = fullTextSession.getSearchFactory().buildQueryBuilder().forEntity(Product.class).get();
org.apache.lucene.search.Query luceneQuery = queryBuilder.keyword().onFields("name").matching(queryString).createQuery();
// wrap Lucene query in a javax.persistence.Query
org.hibernate.Query fullTextQuery = fullTextSession.createFullTextQuery(luceneQuery, Product.class);
List<Product> productList = fullTextQuery.list();
fullTextSession.close();
return productList;
}
private static void displayContactTableData() {
Session session = null;
PropertiesFile propertiesFile= PropertiesFile.getInstance();
String driverClass = propertiesFile.extractPropertiesFile().getProperty("hibernate.connection.driver_class");
String connectionURL = propertiesFile.extractPropertiesFile().getProperty("hibernate.connection.url");
String userName = propertiesFile.extractPropertiesFile().getProperty("hibernate.connection.username");
String password = propertiesFile.extractPropertiesFile().getProperty("hibernate.connection.password");
String dialect = propertiesFile.extractPropertiesFile().getProperty("hibernate.dialect");
String showSQL = propertiesFile.extractPropertiesFile().getProperty("hibernate.show_sql");
try {
//session = HibernateUtil.getSession();
// Fetching saved data
String hql = "from Product";
@SuppressWarnings("unchecked")
Configuration cfg=new Configuration()
.setProperty("hibernate.connection.driver_class", driverClass)
.setProperty("hibernate.connection.url", connectionURL)
.setProperty("hibernate.connection.username", userName)
.setProperty("hibernate.connection.password", password)
.setProperty("hibernate.dialect", dialect)
.setProperty("hibernate.show_sql", showSQL)
.addAnnotatedClass(com.test.webservice.model.Product.class);
SessionFactory factory=cfg.buildSessionFactory();
session=factory.openSession();
Transaction t=session.beginTransaction();
List<Product> productList = session.createQuery(hql).list();
for (Product product : productList) {
System.out.println("Product Name --->"+product.getName());
}
} catch(HibernateException exception){
System.out.println("Problem creating session factory");
exception.printStackTrace();
}finally{
if(session != null) {
session.close();
}
}
}
public static void main(String[] args) throws InterruptedException {
System.out.println("\n\n******Data stored in Contact table******\n");
displayContactTableData();
// Create an initial Lucene index for the data already present in the database
doIndex(); // Error occuring on this line
Scanner scanner = new Scanner(System.in);
String consoleInput = null;
while (true) {
// Prompt the user to enter query string
System.out.println("\n\nEnter search key (To exit type 'X')");
System.out.println();
consoleInput = scanner.nextLine();
if("X".equalsIgnoreCase(consoleInput)) {
System.out.println("End");
System.exit(0);
}
List<Product> result = search(consoleInput);
System.out.println("\n\n>>>>>>Record found for '" + consoleInput + "'");
for (Product product : result) {
System.out.println(product);
}
}
}
}
hibernate.cfg.xml
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="hibernate.connection.url">jdbc:oracle:thin:@localhost:1521:xe</property>
<property name="hibernate.connection.username">vb</property>
<property name="hibernate.connection.password">123456</property>
<property name="hibernate.dialect">org.hibernate.dialect.OracleDialect</property>
<property name="show_sql">false</property>
<property name="format_sql">true</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<property name="hibernate.search.default.directory_provider">filesystem</property>
<property name="hibernate.search.default.indexBase">C:\lucene\indexes</property>
<mapping class="com.test.webservice.model.Product" />
</session-factory>
</hibernate-configuration>
Product.java
@Entity
@Indexed
@Table(name = "PRODUCT")
public class Product {
private String name;
private long id;
@Field(index = Index.YES, analyze = Analyze.YES, store = Store.NO)
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public void setId(long id) {
this.id = id;
}
@Id
public long getId() {
return id;
}
}