Selenium Grid Proxy: how to get the response after a command get executed

Question

I created a Selenium Grid proxy, I want to log every command done, the problem is I can't find a way to get the response of the command for example after "GetTitle" command I want to get the "Title" returned.

Answer 1

Where do you want this logging to be done ? If you attempt at logging this at the Custom Proxy, then these logs would be available only on the machine that runs the hub. Is that what you want ? If yes, then here's how you should be doing it :

Within an overloaded variant of org.openqa.grid.internal.listeners.CommandListener#afterCommand (this method should be available in your DefaultRemoteProxy extension object that you are building), extract this information from within the javax.servlet.http.HttpServletRequest by reading its entity value and then translating that into a proper payload.

Here's how the afterCommand() (or) beforeCommand() method from your customized version of org.openqa.grid.selenium.proxy.DefaultRemoteProxy can look like:

org.openqa.grid.web.servlet.handler.SeleniumBasedResponse ar = new org.openqa.grid.web.servlet.handler.SeleniumBasedResponse(response);
if (ar.getForwardedContent() != null) {
    System.err.println("Content" + ar.getForwardedContent());
}

If that's not what you want, then you should be looking at leveraging the EventFiringWebDriver. Take a look at the below blogs to learn how to work with the EventFiringWebDriver. The EventFiringWebDriver does not require customization at the Grid side, it just needs you to make use of the EventFiringWebDriver which would wrap within it an existing RemoteWebDriver object and the listeners you inject to it will help you get this.

• http://darrellgrainger.blogspot.in/2011/02/generating-screen-capture-on-exception.html
• https://rationaleemotions.wordpress.com/2015/04/18/eavesdropping-into-webdriver/ (This is my blog) Here I talk about not even using EventFiringWebDriver but instead work with a decorated CommandExecutor which would log all these information for you.