Rythm Template Engine is a general-purpose, high-performance Java template engine which uses a Razor-like syntax. It is 2-to-3 times faster than Velocity. It supports variables, expression evaluation, control flow (if-else-if), looping, template inheritance(decoration/layout), and many features. There is a Play!Framework plugin based on Rythm. You can use Rythm in any place to generate any type of text file, including HTML, XML, Json, SQL, and any kind of source code.
io-util is a small, scalable Java library for slicing and dicing fixed width tables on disk. The objective is to provide reusable blocks of code for building efficient, custom binary data stores. It allows you to build, search, and maintain a large, externally stored, fixed width, sorted table. The library user specifies the row width (in bytes), a row comparison function (which implicitly defines any given row's key), and an optional delete codec.
Orient Key/Value Server is based on the Document Database technology and is accessible as an embedded repository via Java APIs or via HTTP using a RESTful API. It uses a new algorithm called RB+Tree, derived from the Red-Black Tree to maintain tree balance, and from the B+Tree storing the links to records in pages to optimize memory consumption and loading time. Orient Key/Value Server scales out very well in a cluster with thousands of running machines: Orient will divide the load among all the nodes. Clustering, by default, works in auto-discovery mode: when a node starts, it attaches itself to the cluster if one is available. When a node goes down, the cluster automatically rebalances itself.
The Apache ODF Toolkit is a set of Java modules that allow programmatic creation, scanning, and manipulation of Open Document Format (ISO/IEC 26300 == ODF) documents. Unlike other approaches that rely on runtime manipulation of heavy-weight editors via an automation interface, the ODF Toolkit is lightweight and ideal for server use.
Dog is a Domotic OSGi Gateway. In other words, it is a software-based gateway used for controlling domotic environments in a vendor-independent way, thanks to its high-level semantic device modeling strategy and its driver architecture that allows it to support different domotic plant technologies.