需要帮助获取Adobe CQ 5移动应用程序开发中的移动设备属性

I am new to CQ 5 Mobile Application Development what I want to achieve is, When a mobile device send the request to the page it captures the attributes of mobile like mobile browser, mobile browser version, mobile OS and mobile OS version. I want to LOG this information and in later stage use this to categorize them in different Device Group and render different components in different device groups.I am new to CQ 5 Mobile Application Development