Osgi is fast gaining momentum as a framework for developing and deploying modular reusable java programs. The method below only works in a scenario where the jar file has no dependencies on other external jar files. Both sets of annotations can be used in the same project if needed. A stepbystep guide for developers to build java components and package them as osgi bundles using apache felix, an open source osgi container. This presentation introduces the android platform, osgi, and demonstrates how to run apache felix on android. The launch configuration puts together the neccessary bundles.
Troubleshooting osgi applications on liberty ibm knowledge center. Get yourself acquainted with the osgi concepts, in an easytofollow progressive manner. Design, implementation and validation 2010 by pablo cabezas, jon legarda, jose maria sarriegi. Using cdi to inject osgi bundles as services in netbeans ide. By default felix would auto deploy all bundles from this folder. Using the osgi bundle repository in osgi and apache felix 3.
Download osgi in action ebook pdf or read online books in pdf, epub. Osgi and spring, part 1, build and deploy osgi bundles using apache felix. This tutorial creates successively more complex osgi bundles to illustrate most of the features and functionality offered by the osgi framework. Popular implementations of the osgi specification are. In this tutorial, the declarative services are implemented using the apache felix. A bundle repository is a natural extension to the osgi alliance because they want to promote a bundle market. Osgi framework equinox here, the example bundle, felix gogo shell to diagnose problems if any and file install along with the configuration admin. Once called the open services gateway initiative, the osgi alliance now refers to the framework specification as osgi or the osgi service platform. Download ipojo apache felix welcome to apache felix. The osgi bundle repository obr is a draft specification from the osgi alliance for a service that would allow getting access to a set of remote bundle repositories. I had devoted the second chapter of the book to osgi with apache felix. This directory would be configured with file install. This section describes the differences from older versions of the framework. Osgi compendium catalog of standard service descriptions implementations.
This document demonstrates how the integrated support for the open services gateway initiative osgi framework in netbeans ide simplifies the process of creating osgi bundles and using the bundles in your projects. Build a completely operational reallife application composed of multiple bundles and a web front end using felix. Slides and videos of the osgi community event talks. The reader is walked through an application buildup, with each chapter presenting just enough overview material to understand why theyre doing what theyre doing the bulk of each chapter is code.
Osgi apache felix creating jar file bundle youtube. Migrating from the apache felix scr annotations to the. Is implemented via apis that allow for remote downloading of management. Apache karaf can be scaled from a very lightweight container to a fully featured enterprise service. In this tutorial you will create two simple osgi bundles from the maven osgi bundle archetype and then deploy the bundles to the glassfish server open source edition 3. Osgi is a java framework for developing and deploying modular software programs and libraries. Apache karaf european meetup on april 30th 2020 the first apache karaf european meetup will be on april 30th 2020, online, free to join karaf runtime 4. Each remote repository, potentially a front for a federation of repositories, provides a list of bundles available for. With the osgi r6 release from 2015, the annotations of the osgi specifications provide the same functionality and go. Apache felix apache felix framework usage documentation. Use features like bookmarks, note taking and highlighting while reading osgi and apache felix 3. To use ipojo, you must install and start this bundle on your osgi runtime. Building an iot architecture with a modular osgi approach futureproofs investments, reduces development cycles and enables rapid and costeffective delivery of new. To run apache felix osgi, you need to download the felixframework4.
I hope you will find this information as well as the content useful. This chapter describes the osgi environment in weblogic server and how to deploy osgi bundles to weblogic server. Migrating from the apache felix scr annotations to the osgi. Once you have extracted the felix framework distribution, from the command line in the extracted directory type the following.
Finally, the book describes some of the common pitfalls during bundle development, and gives hints on troubleshooting them in felix. Each remote repository, potentially a front for a federation of repositories, provides a list of bundles available for download, along with some additional information. Apache felix is one of the most famous implementations of the osgi framework specification. Felix has an implementation for it that is based around jetty 4. Osgi has enjoyed wide adoption across a broad range of industries including industry 4. This book introduces osgi on the simple and extensible felix framework and guides you from the development environment setup to the troubleshooting of potential issues, walking you through the development of an osgibased application and explaining. Oct 25, 20 besides the bundle is a project that contains the configuration file. This bundle allows displaying information on created instances only instances publishing their architecture. Pdf performance analysis of the osgibased iot frameworks on. Simplify your osgi development experience by learning about felix ipojo. Next, open the jar file you just downloaded with winzip. The book is accompanied with a full source code available at github see the link to the publishers site. You can also simply change the file extension from.
Osgi alliance see related topics publishes the specifications for the module system. The osgi standards have found a wide range of applications in the context of the enterprise, telecommunications, telematics, smart home, ehealth, and mobile applications, to name just a few. This post is part of a series of posts on java modularity with osgi and declarative services please follow the previous parts first part 1, part 2, part 3summary. Originally intended to bring java into embedded systems. Download pdf osgi in action free online new books in. Apache karaf is not tightly coupled to one osgi framework. The java annotations of the apache felix scr plugin were one of the first options to use annotations to create the descriptors for osgi declarative services components and osgi metatype descriptions for the configuration of such components.
There a few open source containers including apache felix and eclipse equinox. Apache felix osgi tutorial apache felix apache software. Install the latest version of liberty with the osgi application programming. Heres a very simple way of turning an existing jar file in an osgi bundle, while keeping control on exported packages. For more information about bundle repositories, see the apache felix osgi. The book then kicks off the bookshelf project, a case study that will be used to progressively explain the important concepts around osgi using the felix framework the bookshelf project feature trail will set the context to explain osgi headers, the bundle activator, the bundle context and so on as the reader implements the bookshelf step by step, they learn about obr repositories. Download it once and read it on your kindle device, pc, phones or tablets. The apache felix scr annotations can be replaced in aem projects with osgi r6 annotations. Apache felix scr annotations are still supported in aem and can be used along with osgi r6 annotations in an aem project though a single osgi component or service cannot use both. To work with osgi modules or bundles, youll have to use, i let you guess. Build your very own osgi applications using the flexible and powerful felix framework.
Some of the popular osgi containers include eclipse equinox see related topics and apache felix among others see related topics. Hall pioneered a repository with his oscar bundle repository obr. To start the knopflerfish framework, you can now simply doubleclick on the. To run apache felix osgi, you need to download the felix framework4.
The author assumes the reader knows nothing about osgi, apache felix, or the development environment so its good for any competent java developer. Use the links below to download binary or source distributions of apache. Pdf the open services gateway initiative osgi is a framework that supports the. By default, apache karaf runs with the apache felix framework, but you can easily switch to equinox just change one property in a configuration file. This tutorial gives an overview of osgi and its modularity layer using eclipse equinox. You can download the file, modify it, and upload a new file for a new mapping. Open services gateway initiative osgi model library ibm. Felix5431 tutorial about osgi with apache felix asf jira. Osgi tutorial iowa state university smart home project.
Getting started with osgi on apache felix stephous weblog. Learn everything needed about the felix framework and get familiar with gogo, its commandline shell to start developing your osgi applications. Moreover, it supports the dynamic install and uninstall of bundles. Developers who want to use osgi in their applications can easily share osgi facilities, such as the osgi service registry, class loaders, and other osgi services. Net implementation tightly based on osgi specifications from osgi alliance, is designed and developed by xian ui information technology, inc. Download the file install bundle from here and copy it to the bundle folder. Browse to the eclipse ide download site and download the eclipse. Besides the bundle is a project that contains the configuration file. Each bundle is a tightly coupled, dynamically loadable collection of classes, jars, and configuration files that explicitly declare their external dependencies if any.
Pdf the connectedhome ecosystem is currently one of the highly discussed applications of. A stepbystep beginners guide to implementing a reallife osgi application, with the apache felix 3. The osgi alliance, formerly known as the open services gateway initiative. The new osgi r6 annotations api docs can be found in the above api docs section. Net, a dynamic modularization framework, which is a. Using the osgi bundle repository in osgi and apache felix. The example creates an osgi bundle from the attached junit4. Configure your osgi services with apache felix file install. A usable semantic osgi architecture within the smart home environment. This tutorial describes how the netbeans ide can be used to define osgi bundles in maven projects. For more information about the felix web console, see apache felix web console. Apache karaf uses either the apache felix or eclipse equinox osgi frameworks, providing additional features on top of the framework.
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