Hessian and the request..

[tonygiaccone]

I'm using spring and the hessian services to create a connection to a content management system. Tthe files that get uploaded now have to make three jumps, browser to the spring/tapestry application, Tapestry to WebService, Webservice to ContentManagment system. Obviously I don't want to handles this with out some kind of streaming interface.

My current question is how do I get to the Http request from the body of hessian method. I see how the bean gets instantiated, and I've found the dispatching mechanisim, but I can't figure out how to get a reference to the http request.

Can someone help me with this?


Tony Giaccone

[cwilkes]

<bean id="myRemote" class="org.springframework.aop.framework.ProxyFactoryBean">
    <property name="target" ref="myRemoteTarget" />
    <property name="interceptorNames">
      <list>
        <value>logBillingIpAddressInterceptor</value>
      </list>
    </property>
  </bean>

Where "myRemoteTarget" is your HessianServiceExporter'ed class that has your serviceInterface defined.

Have the logBillingIpAddressInterceptor class extend a class that implements the MethodBefore Advice like so:

public abstract void processRequest(HttpServletRequest req,
            HttpServletResponse res);
       public void before(Method method, Object[] args, Object arg2)
            throws Throwable {
        if (!method.getDeclaringClass().equals(HessianServiceExporter.class))
            return;
        if (!method.getName().equals("handleRequest"))
            return;
        if (args.length != 2)
            return;
        if (!args[0].getClass().equals(HttpServletRequest.class))
            return;
        if (!args[1].getClass().equals(HttpServletResponse.class))
            return;
        processRequest((HttpServletRequest) args[0],
                (HttpServletResponse) args[1]);
    }

and then your class can have a method like this:

public void processRequest(HttpServletRequest req, HttpServletResponse res) {
        log.info("Request from " + req.getRemoteAddr() + " for "
                + req.getRequestURI());
    }

granted that doesn't get you the httprequest in your myRemoteTarget class, but it might help you out.

[tonygiaccone]

I'm just a little confused.

I see this definition:

<bean id="myRemote" class="org.springframework.aop.framework.ProxyFactoryBean">
    <property name="target" ref="myRemoteTarget" />
    <property name="interceptorNames">
      <list>
        <value>logBillingIpAddressInterceptor</value>
      </list>
    </property>
  </bean>

That seems to me to be a client side declaration. Obviously I have to grab this connection on both sides, the server side and the client side, but in particular in my question I was asking about gaining access to the httprequest on the server side.

Did I miss something here?

Tony