New DSRequest from service is failing

[preeti_kanyal]

Hi,
I am trying to make a DSRequest fetch from service using new DSRequest() and I am getting following exception :

 
 java.lang.Exception: RequestContext is missing the ServletContext.  Please ensure you privide either a PageContext, a Servlet, or a ServletContext to your RequestContex.instance() call. 	at com.isomorphic.rpc.ServerObject.<init>(ServerObject.java:225) 	at com.isomorphic.rpc.ServerObject.<init>(ServerObject.java:70)

I have a DatasourceA fetch from client that I am catching on server.

 @Override
    public DSResponse fetch(final DSRequest req, final RPCManager rpcManager) throws Exception {
            // Execute Another DS Fetch
            final DSRequest dsRequest= new DSRequest("DatasourceB", DS_OPERATIONTYPE_FETCH);  
           dsRequest.execute();   //this line is throwing exception
}

I have tried to set the rpcManager to the new request as given below:

dsRequest.setRPCManager(rpcManager);

After this while running execute() the system hangs. No exception nothing happens.


The DatasourceB fetch is given below:

    <operationBindings>
        <operationBinding operationType="fetch">
            <serverObject lookupStyle="spring" bean="myService"
                className="com.test.MyServiceImpl" />
        </operationBinding>
    </operationBindings>

The service method is :

 @Override
    public DSResponse fetch(final DSRequest dsRequest,final RPCManager rpcManager) throws Exception {

// some logic
return  dsRequest.execute();
}

Kindly suggest. Thanks in advance.

[Isomorphic]

Normally, the RPCManager and RequestContext is created in the IDACall servlet, in processRequest(). Somehow you've broken that process, possibly with an override of the IDACall servlet, or maybe with a servlet you've put in front of IDACall.

Whatever the problem, it has nothing to do with the code you've shown so far.

[preeti_kanyal]

Resolved it using the below code :

dsRequestB.setContext(rpcManager.getContext());

I don't know why it was not working with new DSRequest(dsName, operationType, RPCManager); constructor.

[Isomorphic]

That's complete nonsense. You already provided the RPCManager to this dsRequest instance, so it already had a requestContext. And that's the requestContext where you have gotten an error message saying that requestContext.servletContext is missing.

So, either something you told us before isn't true, or you are in a "two wrongs make a right" situation where you created a problem through bad usage and then "fixed" it through more bad usage.

We would recommend looking into how you actually broke things in the first place - probably some bad servlet-level code as we mentioned before - rather than considering it "resolved".