OSGi (Open Service Gateway Initiative) is a Java framework for developing and deploying modular software programs and libraries. OSGi has two parts. The first part is a specification for modular components called bundles, which are commonly referred to as plug-ins.Herein, what is OSGi container?
OSGi is a dynamic module system for Java. OSGi lets you divide your Java application into bundles. Every bundle has a name and a version. When you drop a bundle in an OSGi container, then the container handles the inter-dependencies automatically.
Furthermore, is OSGi a Microservice? OSGi and microservices share the same architectural style but differ in their granularity. We actually used to call OSGi services microservices until the web stole that name. OSGi defines a (nano) service as an object that is made available to other modules (bundles) to use. Java is used to define the API.
Accordingly, why is OSGi used?
OSGi is a fast framework because it knows that which service will be loaded into OSGi environment thanks to pre-defined xml file. It reduces runtime cost thanks to lazy state. Service instance is created when they needed. Some bundle's different version can be used by other bundle at the same time.
What is spring OSGi?
Spring DM is composed of a set of OSGi bundles that become part of the infrastructure when installed in an OSGi container. They can then manage a Spring application context for bundles or even start a web container inside the OSGi container.
What does OSGi stand for?
Open Service Gateway Initiative
What is Karaf container?
Karaf Container is a modern and polymorphic container. It's a lightweight, powerful, and enterprise ready container powered by OSGi. By polymorphic, it means that Karaf can host any kind of applications : OSGi, Spring, WAR, and much more.What is Apache Karaf used for?
Apache Karaf is a modern polymorphic application container. Karaf can be used as a standalone container, supporting a wide range of applications and technologies. It also supports the "run anywhere" concept (on any machine with Java, cloud, docker images, … ?) using the embedded mode.What is Sling framework?
Apache Sling is an open source Web framework for the Java platform designed to create content-centric applications on top of a JSR-170-compliant (a.k.a. Apache Sling allows developers to deploy their application components as OSGi bundles or as scripts and templates in the content repository.What is the use of OSGi bundle?
OSGi is a Java framework for developing and deploying modular software programs and libraries. Each bundle is a tightly coupled, dynamically loadable collection of classes, jars, and configuration files that explicitly declare their external dependencies (if any).What is OSGi in Liferay?
OSGi (Open Services Gateway initiative) is a framework for developing modular Java applications. OSGi implements a complete and dynamic component model. Liferay 6.2 includes an OSGi runtime in which Liferay plugins that are packaged as OSGi bundles can run.How does OSGi work in AEM?
OSGi is a fundamental element in the technology stack of Adobe Experience Manager (AEM). It is used to control the composite bundles of AEM and their configuration. OSGi "provides the standardized primitives that allow applications to be constructed from small, reusable and collaborative components.How do I debug OSGi bundle in Eclipse?
A quick way to test a bundle is by launching an OSGi Framework via Run As > OSGi Framework from the context menu of a plug-in project. To launch in debug mode, choose Debug As > OSGi Framework from the context menu of the plug-in project.What is modular software architecture?
The beauty of modular architecture is that you can replace or add any one component (module) without affecting the rest of the system. Modular software design, for example, refers to a design strategy in which a system is composed of relatively small and autonomous routines that fit together.What is a Java bundle?
A Bundle is very much like a Java Map object that maps String keys to values. It's used to pass information between activities and other application components. It's also used by the framework to capture and restore state information. The Android framework relies on this property. 
