I've gone through the requirements, documents, steps and the site itself, though the site may look driven by javascript, it can in fact be scrap using get and post method as we only need the data. I've checked how the site works and I already get how to do it programmatically. I will do this using python so you will undertand it easier compare to java. Let me know if you have questions, message me so we can discuss further about your project. Thanks.