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Switchgear is a Java library that provides an API for call isolation, timeouts, and circuit breaker functionality. Our main goal is to achieve minimal performance overhead of the library, even when used in the hottest place of your application. Additionally, we've opted for zero transitive dependencies and maintaining a fluent API.

Electric is an integrated-circuit design system that offers IC layout, schematic editing, and even textual hardware-description languages. It offers a wide range of synthesis and analysis tools for working on the circuitry. It has many importers and exporters for interfacing to other EDA (Electronic Design Automation) systems. It even has a constraint system for managing chip layout. For more information about Electric, see www.staticfreesoft.com

This bundle wraps Pi4j (http://pi4j.com) that wraps the native code Wiring Pi (http://wiringpi.com). It wraps these libraries to make them OSGi friendly and allow them to work together with the OSGi enRoute IoT circuit library (osgi.enroute.iot.circuit). The bundle will first use Pi4J to detect on what hardware it runs. If it runs on an appropriate type, it will register a component that can be configured with Metatype. The Metatype defines a full blown configuration template for all the Pi's functions. The GPIO's are registered as components for the circuit. Regardless of the success of the configuration, this bundle will also register a GpioController service, which is the main Pi4J class.

This module packages a circuit breaker that can be used to avoid overloading or otherwise depending on a temporarily unavailable (remote) system. The central use of the circuit breaker is to prevent failures from one system to cascade to other systems in an unchecked manner. Thus, our implementation is chiefly concerned with replacing a failing component with another component that fails in a very predictable manner. These failures are not "dropped" or otherwise made invisible, and still need to be handled, but they will occur in a predictable, and hopefully usable manner.