We have seen how Lucene can be incorporated to build a high performance search application. We have also learned that Lucene by itself is a library, as it is not intended to run as a stand-alone service. Because Lucene does not come with any user interfaces, in order to use it, we need to write some codes around the library to provide our own interfaces. The road to adapt to Lucene may not be as straightforward as using a stand-alone service, but the many customizable options Lucene provides out of the box should outweigh the burden of the initial setup. To make setup simpler and allow the user to deploy Lucene quickly, we can leverage an open source product called Elasticsearch. This provides a user interface that wraps around Lucene. It is a stand-alone server with its own facilities to manage data injection operations and searches. It also comes with all sorts of tools to manage all aspects of indexing and searching processes. We are going to cover...