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POMulti-Tenancy with Spring + Hibernate: "SessionFactory configured for multi-tenancy, but no tenant identifier specified"
 

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    <p>In a Spring 3 application, I'm trying to implement multi-tenancy via Hibernate 4's native <a href="http://docs.jboss.org/hibernate/orm/4.1/devguide/en-US/html/ch16.html#d5e4661">MultiTenantConnectionProvider</a> and <a href="http://docs.jboss.org/hibernate/orm/4.1/devguide/en-US/html/ch16.html#d5e4686">CurrentTenantIdentifierResolver</a>. I see that <a href="https://hibernate.onjira.com/browse/HHH-7306">there was a problem with this in Hibernate 4.1.3</a>, but I'm running 4.1.9 and still getting a similar exception:</p> <pre><code> Caused by: org.hibernate.HibernateException: SessionFactory configured for multi-tenancy, but no tenant identifier specified at org.hibernate.internal.AbstractSessionImpl.&lt;init&gt;(AbstractSessionImpl.java:84) at org.hibernate.internal.SessionImpl.&lt;init&gt;(SessionImpl.java:239) at org.hibernate.internal.SessionFactoryImpl$SessionBuilderImpl.openSession(SessionFactoryImpl.java:1597) at org.hibernate.internal.SessionFactoryImpl.openSession(SessionFactoryImpl.java:963) at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:328) at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371) at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:334) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631) at com.afflatus.edu.thoth.repository.UserRepository$$EnhancerByCGLIB$$c844ce96.getAllUsers(&lt;generated&gt;) at com.afflatus.edu.thoth.service.UserService.getAllUsers(UserService.java:29) at com.afflatus.edu.thoth.HomeController.hello(HomeController.java:37) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:746) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:687) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:915) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:811) at javax.servlet.http.HttpServlet.service(HttpServlet.java:735) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796) at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:671) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:448) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:138) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:564) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:213) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1070) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:375) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:175) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1004) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:136) at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:258) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:109) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) at org.eclipse.jetty.server.Server.handle(Server.java:439) at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:246) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:265) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.run(AbstractConnection.java:240) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:589) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:520) at java.lang.Thread.run(Thread.java:722) enter code here </code></pre> <p>Below is the relevant code. In the <code>MultiTenantConnectionProvider</code> I've simply wrote some dumb code for now that just returns a new connection every time, and the <code>CurrentTenantIdentifierResolver</code> always returns the same ID at this point. Obviously this logic was to be implemented after I managed to get the connections to instantiate.</p> <h1>config.xml</h1> <pre><code>&lt;bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"&gt; &lt;property name="dataSource" ref="dataSource" /&gt; &lt;property name="packagesToScan"&gt; &lt;list&gt; &lt;value&gt;com.afflatus.edu.thoth.entity&lt;/value&gt; &lt;/list&gt; &lt;/property&gt; &lt;property name="hibernateProperties"&gt; &lt;props&gt; &lt;prop key="hibernate.dialect"&gt;${hibernate.dialect}&lt;/prop&gt; &lt;prop key="hibernate.show_sql"&gt;${hibernate.show_sql}&lt;/prop&gt; &lt;prop key="hibernate.hbm2ddl"&gt;${hibernate.dbm2ddl}&lt;/prop&gt; &lt;prop key="hibernate.multiTenancy"&gt;DATABASE&lt;/prop&gt; &lt;prop key="hibernate.multi_tenant_connection_provider"&gt;com.afflatus.edu.thoth.connection.MultiTenantConnectionProviderImpl&lt;/prop&gt; &lt;prop key="hibernate.tenant_identifier_resolver"&gt;com.afflatus.edu.thoth.context.MultiTenantIdentifierResolverImpl&lt;/prop&gt; &lt;/props&gt; &lt;/property&gt; &lt;/bean&gt; &lt;bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"&gt; &lt;property name="autodetectDataSource" value="false" /&gt; &lt;property name="sessionFactory" ref="sessionFactory" /&gt; &lt;/bean&gt; </code></pre> <h1>MultiTenantConnectionProvider.java</h1> <pre><code>package com.afflatus.edu.thoth.connection; import java.util.Properties; import java.util.HashMap; import java.util.Map; import org.hibernate.service.jdbc.connections.spi.AbstractMultiTenantConnectionProvider; import org.hibernate.service.jdbc.connections.spi.ConnectionProvider; import org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider; import org.springframework.jdbc.datasource.DriverManagerDataSource; import org.hibernate.cfg.*; public class MultiTenantConnectionProviderImpl extends AbstractMultiTenantConnectionProvider { private final Map&lt;String, ConnectionProvider&gt; connectionProviders = new HashMap&lt;String, ConnectionProvider&gt;(); @Override protected ConnectionProvider getAnyConnectionProvider() { System.out.println("barfoo"); Properties properties = getConnectionProperties(); DriverManagerDataSource ds = new DriverManagerDataSource(); ds.setDriverClassName("com.mysql.jdbc.Driver"); ds.setUrl("jdbc:mysql://127.0.0.1:3306/test"); ds.setUsername("root"); ds.setPassword(""); InjectedDataSourceConnectionProvider defaultProvider = new InjectedDataSourceConnectionProvider(); defaultProvider.setDataSource(ds); defaultProvider.configure(properties); return (ConnectionProvider) defaultProvider; } @Override protected ConnectionProvider selectConnectionProvider(String tenantIdentifier) { System.out.println("foobar"); Properties properties = getConnectionProperties(); DriverManagerDataSource ds = new DriverManagerDataSource(); ds.setDriverClassName("com.mysql.jdbc.Driver"); ds.setUrl("jdbc:mysql://127.0.0.1:3306/test2"); ds.setUsername("root"); ds.setPassword(""); InjectedDataSourceConnectionProvider defaultProvider = new InjectedDataSourceConnectionProvider(); defaultProvider.setDataSource(ds); defaultProvider.configure(properties); return (ConnectionProvider) defaultProvider; } private Properties getConnectionProperties() { Properties properties = new Properties(); properties.put(AvailableSettings.DIALECT, "org.hibernate.dialect.MySQLDialect"); properties.put(AvailableSettings.DRIVER, "com.mysql.jdbc.Driver"); properties.put(AvailableSettings.URL, "jdbc:mysql://127.0.0.1:3306/test"); properties.put(AvailableSettings.USER, "root"); properties.put(AvailableSettings.PASS, ""); return properties; } } </code></pre> <h1>CurrentTenantIdentifierResolver.java</h1> <pre><code>package com.afflatus.edu.thoth.context; import org.hibernate.context.spi.CurrentTenantIdentifierResolver; public class CurrentTenantIdentifierResolverImpl implements CurrentTenantIdentifierResolver { public String resolveCurrentTenantIdentifier() { return "1"; } public boolean validateExistingCurrentSessions() { return true; } } </code></pre> <p>Can anybody see anything specifically wrong? This throws an exception as soon as a transaction is opened. It <em>seems</em> like the <code>SessionFactory</code> isn't opening the Session correctly, or the <code>Session</code> is simply ignoring the value returned by the <code>CurrentTenantIdentifierResolver</code>, which I believe was the issue in Hibernate 4.1.3; this was supposed to have been resolved.</p>
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