Develop Reference

How to set up property in Java hibernate configuration?

I currently have hibernate bean set up in an legacy package that is using XML:
<bean name="returnsDao" class="com.mycompany.HibernateReturnsDAO">
<property name="sessionFactory" ref="myhqSessionFactory" />
</bean>
<bean id="myhqSessionFactory" name="myhqSessionFactory"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource">
<ref bean="myDataSource" />
</property>
<property name="hibernateProperties">
<ref bean="myHibernateProperties" />
</property>
<property name="annotatedClasses">
<list>
<value>com.mycompany.HibernateReturnsDAO</value>
</list>
</property>
</bean>
How do I create the beans in Java configuration from another package? I am trying to use the legacy package and my current package use Java config to initialize beans.
I tried the following and I am getting NPE at sessionFactory.getCurrentSession(), I suspect the Java config didn't set the property attribute properly, but how do I set up in Java config?
#Bean
public HibernateReturnsDAO returnDAO() {
return new HibernateReturnsDAO();
}

Have a look at Hibernate documentation for programmatic configuration

Override xml-defined spring bean in java-based configuration

I'm extending a complete product called Hippo CMS with my own REST interface. Hippo CMS is using Apache CXF for rest and acquires resources definitions from a spring bean defined somewhere in Hippo CMS sources. This definition look like this:
<bean id="jaxrsRestPlainResourceProviders" class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
<property name="targetClass" value="org.apache.commons.collections.ListUtils" />
<property name="targetMethod" value="union" />
<property name="arguments">
<list>
<ref bean="customRestPlainResourceProviders" />
<ref bean="defaultRestPlainResourceProviders" />
</list>
</property>
</bean>
<bean id="defaultRestPlainResourceProviders" class="org.springframework.beans.factory.config.ListFactoryBean">
<property name="sourceList">
<list>
</list>
</property>
</bean>
<!-- Default empty list of custom plain resource providers to be overriden. -->
<bean id="customRestPlainResourceProviders" class="org.springframework.beans.factory.config.ListFactoryBean">
<property name="sourceList">
<list>
</list>
</property>
</bean>
I need to override customRestPlainResourceProviders bean with my own bean. It works fine from XML configuration looking like this:
<bean id="customRestPlainResourceProviders" class="org.springframework.beans.factory.config.ListFactoryBean">
<property name="sourceList">
<list>
<bean class="org.apache.cxf.jaxrs.lifecycle.SingletonResourceProvider">
<constructor-arg>
<bean class="com.xxx.rest.FolderStructureResource"/>
</constructor-arg>
</bean>
</list>
</property>
</bean>
But it doesn't work if I define a bean in Java configuration class (which in the case of other beans works completely fine):
#Bean(name = "customRestPlainResourceProviders")
public ListFactoryBean customRestPlainResourceProviders() {
ListFactoryBean listFactoryBean = new ListFactoryBean();
listFactoryBean.setSourceList(
Lists.newArrayList(
new SingletonResourceProvider(
new FolderStructureResource(repository())
)
)
);
return listFactoryBean;
}
Is there a way to override a bean defined in XML configuration with a bean created in Java configuration class?

What version of spring are you using? I believe this issues is addressed in 4.2.

Manually open a hibernate session with Spring config

The issue I am having is that I use Spring to manage and load hibernate for my web application. I am currently using OpenSessionInViewFilter. This works as intended when I am viewing the application, but not so well when I am trying to access hibernate from non-view related activities such as a Quartz task or some Runnable thread I create to help with some tasks. This causes the Lazy initialize exception and no session available exceptions to occur.
Here is how I currently use Spring to manage Hibernate
<bean id="mainDataSource"
class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
[..DB config..]
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="mainDataSource"/>
</property>
</bean>
<bean id="txManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory"><ref local="sessionFactory"/></property>
<property name="dataSource"><ref local="mainDataSource"/></property>
</bean>
I then configure DAO objects which extend HibernateDaoSupport and inject them into service classes
<bean id="myDAO"
class="package.myDAO">
<property name="sessionFactory">
<ref bean="sessionFactory" />
</property>
</bean>
<bean id="mySvcTarget" class="package.myService">
<property name="myDAO"><ref bean="myDAO"/></property>
</bean>
<bean id="myService"
class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager">
<ref bean="txManager"/>
</property>
<property name="target">
<ref bean="mySvcTarget"/>
</property>
<property name="transactionAttributes">
<props>
<prop key="*">PROPAGATION_REQUIRED</prop>
</props>
</property>
</bean>
So then in my application, myService is injected into my controller classes so I use that to get access to my DAO's. For my situation though it appears I need to access my DAO's (or service preferably) some other way and manually open and close my hibernate sessions since my service classes only seem to be open during view session. I am not exactly sure the best way to do this. All the hibernate configurations are there already in Spring so I'm assuming its just a matter or calling them somehow.

First of all those additional services that you're using (non-views) should be visible by Spring. The simplest way to do it is to use #Service annotation. And to make it work you can add <context:component-scan base-package="your.package"> in your configuration.
After this, if Spring sees your service as a bean, it should be enough to use #Transactional annotation to have Hibernate session in it.

sending https post request with post data using spring web

I'm trying to understand how to send https post request with post data using spring web or and other spring tools.
so far I've been using httpclient but i'm trying to convert to spring :)
the https post request should ignore self signed certificate.
please provide an example on how it can be done.
thank you

I use Spring Integration to send http POST and GET
http://static.springsource.org/spring-integration/reference/html/http.html
The request-factory bean need to be configured to allow self-signed certificates.
I use the following wiring to declare apacheHttpsRequestFactory to be used by http Spring Integration endpoints.
The httpClient bean can be injected to other Spring Beans and used to send http requests:
#Autowired
private HttpClient httpClient;
Here is the fragment of spring-intefration-context.xml:
<!-- HTTPS connection to trust self signed certificates -->
<bean id="sslSocketFactory" class="org.apache.http.conn.ssl.SSLSocketFactory">
<constructor-arg name="trustStrategy">
<bean class="org.apache.http.conn.ssl.TrustSelfSignedStrategy" />
</constructor-arg>
<constructor-arg name="hostnameVerifier">
<bean class="org.apache.http.conn.ssl.AllowAllHostnameVerifier" />
</constructor-arg>
</bean>
<bean id="httpsSchemaRegistry" class="org.apache.http.conn.scheme.SchemeRegistry">
<property name="items">
<map>
<entry key="https">
<bean class="org.apache.http.conn.scheme.Scheme">
<constructor-arg value="https" />
<constructor-arg value="443" />
<constructor-arg ref="sslSocketFactory" />
</bean>
</entry>
</map>
</property>
</bean>
<bean id="httpClient" class="org.apache.http.impl.client.DefaultHttpClient">
<constructor-arg>
<bean class="org.apache.http.impl.conn.PoolingClientConnectionManager">
<constructor-arg ref="httpsSchemaRegistry" />
</bean>
</constructor-arg>
</bean>
<bean id="apacheHttpsRequestFactory"
class="org.springframework.http.client.HttpComponentsClientHttpRequestFactory">
<constructor-arg ref="httpClient" />

Is there a way to get all registered message-converters?

I would like to somehow inject all HttpMessageConverter instances registered in Spring-MVC. I can successfully inject all that have been registered via.
private HttpMessageConverter[] converters;
#Autowired
public void setConverters(HttpMessageConverter[] converters) {
this.converters = converters;
}
However this only injects if the converter was registered inside the context (i.e. if defined outside of <annotation-driven>).
I did figure I would try using <beans:ref inside the <annotation-driven><message-converters> but it is not supported in spring-web 3.1.
Is there some class I can inject that may have a property I could use to get converters? Ideally I'd like to see the order in the filter chain they are registered in too.

You are right, the message converters are directly instantiated within the RequestMappingHandlerAdapter registered using the <mvc:annotation-driven/> xml tag, and the message-converters subtag explicitly expect the bean to be defined inline.
However, a workaround is to define the handler adapter and inject in the converters this way:
<bean name="handlerAdapter" class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
<property name="webBindingInitializer">
<bean class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer">
<property name="conversionService" ref="conversionService"></property>
<property name="validator">
<bean class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
<property name="providerClass" value="org.hibernate.validator.HibernateValidator"></property>
</bean>
</property>
</bean>
</property>
<property name="messageConverters">
<list>
<ref bean="byteArrayConverter"/>
<ref bean="jaxbConverter"/>
<ref bean="jsonConverter"/>
<bean class="org.springframework.http.converter.StringHttpMessageConverter"></bean>
<bean class="org.springframework.http.converter.ResourceHttpMessageConverter"></bean>
<bean class="org.springframework.http.converter.xml.SourceHttpMessageConverter"></bean>
<bean class="org.springframework.http.converter.xml.XmlAwareFormHttpMessageConverter"></bean>
</list>
</property>
</bean>
<bean name="byteArrayConverter" class="org.springframework.http.converter.ByteArrayHttpMessageConverter"></bean>
<bean name="jaxbConverter" class="org.springframework.http.converter.xml.Jaxb2RootElementHttpMessageConverter"></bean>
<bean name="jsonConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"></bean>
<bean name="handlerMapping" class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping">
<property name="useSuffixPatternMatch" value="false"></property>
</bean>

Spring puts all the converters behind an implementation of org.springframework.core.convert.ConversionService . You need to inject an instance of that interface into your class, you can read more in the spring documentation (including an example of how to inject it).

You can try injecting a bean of type RequestMappingHandlerAdapter but depending on your configuration, you might not have an instance!