The typical IT landscape of any large-size organization comprises many different technologies. Apache Solr provides excellent ways to gather information from different types of sources; however, the business may demand integrating Apache Solr with non-J2EE-based technology. Although there are various technologies available in the market, the placement of an Apache Solr-like enterprise search engine in the broader picture of the organization's IT topology is always targeted for specific areas. This area is nothing but the end user web portals. Search engines are designed to provide information to end users, and they are expected to respond as fast as they can. Since they do not provide anything else beyond search, they always go in embedded mode with the applications. These applications mainly use various web-based technologies. In the previous section, we saw how Apache Solr can be used with different Java- and J2EE-based technologies and different integration...