원격 OSGi 서비스의 상호운용 기술 설계 및 구현

Design and Implementation of the Interoperability method for the Remote OSGi services

  • 투고 : 2010.07.30
  • 심사 : 2010.12.22
  • 발행 : 2011.02.28

초록

유비쿼터스 환경의 OSGi는 디지털 이동 전화, 차량, 텔레메틱스, 임베디드 가전, 가정용 게이트웨이, 산업용 컴퓨터, 데스크탑 컴퓨터, 고성능 서버에 이르기까지 그 적용범위가 확대되고 있다. 따라서 다양한 장비에 탑재된 OSGi 프레임워크의 서비스들을 상호운용할 수 있는 기술이 필요하게 되었다. 본 논문에서는 분산 OSGi 프레임워크에서 원격 서비스의 상호운용을 지원하기 위하여 대표적인 분산 미들웨어 기술인 RMI 패러다임을 적용한 원격 OSGi 서비스 상호운영 방안을 제안한다. 제안하는 원격 OSGi 서비스 상호운용 방안은 OSGi 표준 기술을 활용 및 확장하여 서비스 지향적인 OSGi 아키텍처에 부합하는 원격서비스의 등록 및 발견, 접근 방법을 제공하며, 동적으로 변하는 원격 서비스들의 속성을 일관성 있게 유지하여 원격서비스에 대한 신뢰성을 지원한다. 또한 동적으로 프락시 번들 및 프락시 서비스를 생성함으로써 원격 OSGi 서비스의 위치 투명성을 지원하는 특징을 가진다.

In ubiquitous computing environment, OSGi has applied to many areas such as digital mobile phones, vehicles, telematics, embedded appliances, residential gateways, industrial computers, desktop PCs, and high-end servers including mainframes. Therefore, interoperability is required for remote OSGi services which are built on various devices. In this paper, we proposed a method which was able to interoperate remote OSGi services using RMI paradigm. RMI is a representative middleware technology in distributed computing environment. The suggested method is based on the standard OSGi technology. It is possible to provide remote OSGi service registration, finding, and binding methods which were suitable for the OSGi service-oriented architecture. We also provided reliability of the dynamic remote OSGi services by maintaining consistent properties of them, and we could provide location transparency of the remote OSGi services by generating proxy bundles and proxy services dynamically.

키워드

참고문헌

  1. Vijakumar Krishnaswamy, Dan Walther, Sumeer Bhola, Ethendranath Bommajah, George Riley, Brad Topol, Mustaque Ahamad, "Efficient Implementation of Java Remote Method Invocation", 4th USENIX Conference on Object-Oriented Technology and Systems, 1998.
  2. OSGi Alliance, "About the OSGi Service Platform", June 2007.
  3. Jingang Zhou, Dazhe Zhao, Yong Ji, Jiren Liu, "Examining OSGi from an Ideal Enterprise Software Component Model", IEEE International Conference on Software Engineering and Service Sciences, 2010.
  4. O. Dohndrof, J. Kruger, H. Krumm, C. Fiehe, A. Litvina, I. Luck, F. Stewing, "Toward the Web of Things: Using DPWS to bridge isolated OSGi platforms", Pervasive Computing and Communication Workshops, 2010.
  5. Chang Cheng, Yue Suo, Yu Chen, Yuanchun Shi, Weikang Yang, "SSCP: An OSGi-based Communication Portal for Smart Space", Joint Conference on Pervasive Computing(JCPC), 2009.
  6. ASM, http://asm.objectweb.org/index.html
  7. A Ferscha, M Hechinger, R Mayrhofer, R Oberhauser, "A Light-Weight Component Model for Peer-to-Peer Applications", Distributed Computing Systems Workshops, 2004.
  8. CL Wu, CF Liao, LC Fu, "Service-Oriented Smart-Home Architecture Based on OSGi and Mobile-Agent Technology", IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews, Vol. 37, No. 2, pp.193-205, March 2007. https://doi.org/10.1109/TSMCC.2006.886997
  9. J. S. Rellermeyer, G. Alonso, "Service Everywhere: OSGi in Distributed nvironments," In EclipseCon, 2007.
  10. JXTA, http://jxta.dev.java.net
  11. Web Services, http://www.w3.org/standards/webofservices/, W3C.
  12. Erik guttman, "Service Location Protocol : Automatic Discovert of IP Network Services", IEEE Internet Computing Magazine, pp.71-80, July-August, 1999.