Since the establishment of the osgi alliance in 1999, osgi technology has evolved rapidly with java and has become a widely recognized software architecture technology and methodology, with many world-renowned it enterprises joining the osgi camp, and the market for osgi technology is very promising. So osgi technology became a technology that had to be mastered. In-depth understanding of osgi: equinox principles, applications and best practices is divided into four parts: the first part, which is close to osgi, provides a basis for later studies and lectures, provides readers with an insight into the history of osgi and its implications, answers several of the most common sub-norms in the “what is osgi” and “why is osgi used”; the second part, the osgi norms and principles, presents the content of the osgi core norm and the latest osgir5,0 normative document; the third part, based on the osgi application and practice of equinox, details the use of osgi in the framework of services (osgiservicecompendium) and the osgi enterprise code (osgiserviceenterpress), which combines the widest range of osgi techniques from theoretical to practical, with a complete case-by-case presentation of osgi techniques; and the fourth part, best practices, which provide an analysis of the specific problems encountered in development practice, and a presentation of best practices of osgi。
