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November 19, 2008

How to set a cookie in spring WebFlow action

So in spring webflow 1.x there is lots of people asking how to set a cookie or read cookies in a WebFlow Action.

We have created the following utility that does that... check out


 public static ServletExternalContext getServletExternalContext(RequestContext context) {

        ExternalContext externalCntxt = context.getExternalContext();
        if (externalCntxt instanceof ServletExternalContext) {
            ServletExternalContext servletExtContext = (ServletExternalContext) externalCntxt;
            return servletExtContext;
        }
        return null;
    }

Note that we the instanceof check... we do that since that in unit test for the flows that extends AbstractXmlFlowExecutionTests, the ExternalContext is not an instance of ServletExternalContext