2016-01-26 11:34 GMT+01:00 Paul Millar <[email protected]>:
> Hi Sergey,
>
> On 19/01/16 12:58, Sergey Beryozkin wrote:
>> Sorry for a delay.
>
> Sorry for my delay!
>
>> I'm not sure I understand, so you'd like to have some context-params and
>> CXFServlet specific init-params set in a given web.xml and make them
>> available to the application context ?
>>
>> Can you please show some configuration fragments which will help to
>> understand what exactly are you trying to achieve ?
>
>
> A little bit of background.
>
> I've "inherited" a rather basic servlet that I'm trying to bring into a
> reasonable shape. It provides support for a network protocol, using a
> directory to store some state.
>
> Currently, the directory it uses is hardcoded as '/data'. I would like to
> expose this as a configuration option for two reasons:
>
> a. Using '/data' might not be convenient for all users.
>
> b. I'm adding integration testing as part of the maven build process
> and I want to run the servlet (from within maven) but configuring
> it to use a path within the maven-project's 'target' directory.
>
> I believe init-param is the implementation-agnostic way of configuring a
> servlet. Given I want to expose a single string argument, this seemed
> appropriate.
>
> I would also like to avoid introducing CXF-specific code in the application:
> the servlet should work with any JAX-RS implementation.
>
> Therefore, it looked like injecting the init-param as a spring argument is
> the way forward and an initial scan of CXF code-base suggests that CXF
> servlet transport does inject the key-value pairs from init-param arguments
> into a named Spring bean; however, when I try this it doesn't work.
>
> Here are some details. The web.xml:
>
>
> <web-app version="2.5"
> xmlns="http://java.sun.com/xml/ns/javaee";
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
> http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd";>
> <context-param>
> <param-name>contextConfigLocation</param-name>
> <param-value>classpath:applicationContext.xml</param-value>
> </context-param>
>
> <listener>
>
> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
> </listener>
>
> <servlet>
> <servlet-name>CXFServlet</servlet-name>
>
> <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>
> <init-param>
> <param-name>filesystemBaseDirectory</param-name>
> <param-value>/home/paul/test-dir</param-value>
> </init-param>
> <load-on-startup>1</load-on-startup>
> </servlet>
>
> <servlet-mapping>
> <servlet-name>CXFServlet</servlet-name>
> <url-pattern>/*</url-pattern>
> </servlet-mapping>
> </web-app>
>
>
>
> Some fragments from applicationContext.xml, omitting some unrelated parts.
>
>
>
> <beans ...>
> <context:annotation-config/>
> <!-- context:component-scan .../> -->
> <import resource="classpath:META-INF/cxf/cxf.xml"/>
> <import resource="classpath:META-INF/cxf/cxf-servlet.xml"/>
>
> <!-- ... -->
>
> <bean id="containerDao" class="...">
> <property name="baseDirectoryName"
> value="#{contextParameters['filesystemBaseDirectory']}"/>
> </bean>
> </beans>
>
>
> With the above configuration, the SpEL reference
> #{contextParameters['filesystemBaseDirectory']} expands to null.
>
> If I add context-param declaration to web.xml then the SpEL expression
> expands to the correct value.
>
> Any ideas how to get init-param to work?
Hi.
No idea, but I would prefer to create my own properties file + to use
PropertyPlaceholderConfigurer to set up Spring application context
So, you could, for example
<bean id="containerDao" class="...">
<property name="baseDirectoryName" value="${filesystem.basedir}"/>
</bean>
>
> Cheers,
>
> Paul.
