The Carbon Framework is a set of core functionality and a model for building lightweight technical services in Java. It is designed for enterprise solutions where robust components with flexible management and consistent configuration are required. The foundation of Carbon is an XML-based configuration service that supports a namespace of strongly-typed and editable configuration data. Technical components like cache services or schedulers can be deployed and managed through Carbon's configuration service and are easily replaced. The management capabilities are provided though JMX, facilitating the maintenance and monitoring of services.
CarrierWave provides a set of facilities that automate and extend the EJB Value Object (or Data Transfer Object) pattern into supporting arbitrary value graphs. Specifically, CarrierWave provides a code generator that creates typed value objects from the source code of corresponding business objects, a client interface supporting the selection, modification, deletion, and invocation of business objects, and near-transparent business object persistence through various object persistence applications and interfaces like JDO.
Catalyst is a Web application framework for Perl. It is based on Maypole, and adds many features from Ruby on Rails, Struts, Spring, and Tomcat. The development philosophy focuses on Don't Repeat Yourself, Lego-like components, Code Generation, and very strong testability. It supports a number of plugins, models, views, and controllers.
Channel is a C++ template framework for distributed message passing and event dispatching. Its major components (message IDs, routing algorithms...) are highly configurable as template parameters. As a namespace shared by peer threads, channels support publish/subscribe scope control, message filtering, and translation.
ClanLib is a cross-platform game SDK currently supporting Windows and Linux. It provides easy-to-use interfaces for 2D graphics, input, sound, resources, networking, GUI, OpenGL, and more. The goal is to provide a game SDK that does all the dirty work that all modern games need to implement anyway, thus making the game developer concentrate on the gameplay instead of reinventing the wheel over and over again.
ClearParse is a flexible engine that can be used for any parsing task including interpreting or compiling programming languages, analyzing or converting data files, processing command line parameters and user input, implementing markup languages and scripts, natural language processing (NLP), and more.
ClearSilver is a high-performance, powerful, and language-neutral HTML template system. It enforces a separation between presentation code and application logic which makes writing, debugging, and maintaining Web pages easier. It can be used from C/C++, Python, Perl, Java, and Ruby. It runs on Windows and Unix.
CloverETL is Java-based tool/framework for data integration and creation of data transformations. It is component based and follows the concept of transformation graphs which consist of individual nodes/components performing simple (or complex) operations on data. Any transformation can be defined as a set of interconnected nodes through which data flows. CloverETL can be used as a standalone application or be embedded into a larger project.