In this chapter, we will have the chance to play with the DataImportHandler facility. We will provide an introduction to the most interesting directions where it's possible to use it.
We will see how it's possible to use a Solr instance to index all different sources without necessarily resorting to a lot of programming, focusing on how to define a simple indexing workflow with XML configuration. This can be interesting; for example, for acquiring data for preliminary prototyping and analysis, in order to provide integrations for existing legacy sites. It can also be used to implement a central service for searching data we want to access over our applications, e-commerce sites, or OPAC.