Example usage for org.apache.wicket.request IRequestCycle setResponse

Introduction

In this page you can find the example usage for org.apache.wicket.request IRequestCycle setResponse.

Prototype

Response setResponse(Response response);

Source Link

Document

Replaces the current Response with new Response instance.

Usage

From source file:fiftyfive.wicket.resource.MergedResourceRequestHandler.java

License:Apache License

public void respond(IRequestCycle requestCycle) {
    WebRequest origRequest = (WebRequest) requestCycle.getRequest();

    // Explicitly set the last modified header of the response based on the last modified
    // time of the aggregate. Do this on the original response because our wrapped response
    // ignores the last modified headers contributed by each individual resource.
    WebResponse origResponse = (WebResponse) requestCycle.getResponse();
    if (this.lastModified != null) {
        origResponse.setLastModifiedTime(this.lastModified);
    }//from  w ww.  j a v  a2 s .  c om

    try {
        // Make a special response object that merges the contributions of each resource,
        // but maintains a single set of headers.
        MergedResponse merged = new MergedResponse(origResponse);
        requestCycle.setResponse(merged);

        // Make a special request object that tweaks the If-Modified-Since header to ensure
        // we don't end up in a situation where some resources respond 200 and others 304.
        // Yes, calling RequestCycle#setRequest() is frowned upon so this is a bit of a hack.
        ((RequestCycle) requestCycle).setRequest(new MergedRequest(origRequest));

        for (ResourceReference ref : this.resources) {
            ResourceRequestHandler handler = new ResourceRequestHandler(ref.getResource(), this.pageParameters);
            handler.respond(requestCycle);

            // If first resource sent 304 Not Modified that means all will.
            // We can therefore skip the rest.
            if (304 == merged.status) {
                break;
            }
        }
    } finally {
        // Restore the original request once we're done. We don't need to restore the
        // original response because Wicket takes care of that automatically.
        ((RequestCycle) requestCycle).setRequest(origRequest);
    }
}

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