On Jun 10, 2011, at 10:47 AM, Tony Nelson wrote:
> Hi all,
>
> I'm in the process of rebuilding an app that was done in Tap3 (indeed!) in
> Tap5. It's a small app, maybe a dozen pages used by my internal staff. This
> is in preparation for rebuilding the entire front of a much larger app. But
> that's a story for another day.
>
> Because I want to learn all the new Tap5 goodness, I started with an new
> project built w/ the maven archetype. I copied over my DB classes and added
> the Spring dependencies I needed, and wrote a test case to make sure I could
> read and write from my dev (h2) database.
>
> Then I created a very small page that displays a few rows from the DB in a
> table. The service method is trivial:
>
> @Log
> public List<Office> getOffices() {
> return officeDao.getAllOffices();
> }
>
> I fired up Jetty, and opened the page. I really expected to get an exception
> saying that I don't have a database session because I purposely did not
> include the OpenSessionInView filter that I'm familiar with. In addition I
> didn't include the tapestry-hibernate jars because I'm not sure if it's
> better to have Tap of Spring handle opening and closing the sessions.
>
> I was very surprised when the page actually rendered a result from the
> database. I'm still not clear where the session is coming from, but that is
> actually my problem. I can reload my tiny test page 8 times. On the 9th
> time, I see:
>
> [582385532@qtp-918884489-5] DEBUG com.starpoint.helpdesk.pages.Offices -
> [ENTER] getOffices()
>
> And the browser spins. I can open the H2 DB in the H2 admin console and
> issue queries against it, so the H2 instance is fine.
>
> Obviously I'm either out of sessions or connection pool slots. My goal is to
> be able to use the Spring @Transactional annotation because in the larger app
> rewrite I have several dozen business layer Spring managed beans that depend
> on it.
>
> I have tried adding Springs OpenSessionInViewFilter, and I've tried adding a
> dependency on tapestry-hibernate-core. Neither of these solutions have
> helped.
>
> Can anyone offer any suggestions as to where the session is actually coming
> from so that I can try to figure out how to get the session closed or
> released?
>
> I have Spring configured like this:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <beans xmlns="http://www.springframework.org/schema/beans";
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xmlns:context="http://www.springframework.org/schema/context";
> xsi:schemaLocation="http://www.springframework.org/schema/beans
> http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
> http://www.springframework.org/schema/context
> http://www.springframework.org/schema/context/spring-context.xsd";
> default-autowire="byName" >
>
> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
> <property name="driverClassName" value="${dataSource.driverClass}" />
> <property name="username" value="${dataSource.user}" />
> <property name="password" value="${dataSource.password}" />
> <property name="url" value="${dataSource.jdbcURL}" />
> </bean>
>
> <!-- Hibernate session factory -->
> <bean id="sessionFactory"
>
> class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
> <property name="dataSource" ref="dataSource"/>
> <property name="configLocation" value="classpath:/hibernate.cfg.xml"/>
> </bean>
>
> <!-- Hibernate transaction manager -->
> <bean id="transactionManager"
>
> class="org.springframework.orm.hibernate3.HibernateTransactionManager">
> <property name="sessionFactory" ref="sessionFactory"/>
> </bean>
>
>
> <context:component-scan base-package="com.starpoint.helpdesk.dao" />
> <context:annotation-config/>
>
> </beans>
>
> and my web.xml is simply:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <!DOCTYPE web-app
> PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
> "http://java.sun.com/dtd/web-app_2_3.dtd";>
> <web-app>
> <display-name>Starpoint Help Desk Tapestry 5 Application</display-name>
>
> <context-param>
> <!--
> The only significant configuration for Tapestry 5, this informs
> Tapestry
> of where to look for pages, components and mixins.
> -->
> <param-name>tapestry.app-package</param-name>
> <param-value>com.starpoint.helpdesk</param-value>
> </context-param>
>
> <context-param>
> <param-name>contextConfigLocation</param-name>
> <param-value>classpath:/applicationContext.xml</param-value>
> </context-param>
>
> <filter>
> <filter-name>app</filter-name>
>
> <filter-class>org.apache.tapestry5.spring.TapestrySpringFilter</filter-class>
> </filter>
>
> <filter-mapping>
> <filter-name>app</filter-name>
> <url-pattern>/*</url-pattern>
> </filter-mapping>
>
> </web-app>
>
I turned on debug logging and get this when the request hangs:
[1828511825@qtp-68769219-3] DEBUG com.starpoint.helpdesk.pages.Offices -
[ENTER] getOffices()
[1828511825@qtp-68769219-3] DEBUG
org.springframework.orm.hibernate3.SessionFactoryUtils - Opening Hibernate
Session
[1828511825@qtp-68769219-3] DEBUG org.hibernate.impl.SessionImpl - opened
session at timestamp: 13077185704
[1828511825@qtp-68769219-3] DEBUG org.hibernate.jdbc.AbstractBatcher - about
to open PreparedStatement (open PreparedStatements: 0, globally: 0)
[1828511825@qtp-68769219-3] DEBUG org.hibernate.jdbc.ConnectionManager -
opening JDBC connection
So maybe I should have sent this question to the Spring list?
All the same, does anyone have any insight into what I may have done wrong?
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