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Component-Oriented Development for Real-Time Java

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Distributed, Embedded and Real-time Java Systems

Abstract

The Real-Time Specification for Java (RTSJ) offers developers an attractive platform for development of software that is composed of variously stringent real-time and non real-time tasks. However, the RTSJ introduces a programming model involving several non-intuitive rules and restrictions which make systems modeling and development a complex and error-prone task. In this chapter we introduce an advanced software engineering technology that allows developers to address these challenges – component-oriented development. In the first part, we present the general concepts and identify the key benefits of this technology. We further show one of the possible approaches on how to embrace this technology when mitigating the complexities of RTSJ development – the Hulotte framework. The framework provides a continuum between the component-oriented design and implementation process of RTSJ systems. The RTSJ concepts are treated as first-class entities which enables the modeling and automatized preparation of their implementation by employing code-generation techniques. We conclude this chapter with an extensive case study comparing object-oriented and component-oriented implementation of the Collision Detector Benchmark. Our empirical evaluation shows that the performance overhead of the framework is minimal in comparison to manually written object-oriented applications without imposing any restrictions on the programming style.

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Notes

  1. 1.

    The Hulotte framework is available at http://adam.lille.inria.fr/soleil/.

  2. 2.

    Available under open-source license at http://www.ovmj.net/cdx/.

  3. 3.

    The model can be further extended to optimize the memory usage by enabling allocation of the infrastructure data in scoped memory areas, which would also allow reconfiguration of the system at runtime, these extensions are currently being investigated.

  4. 4.

    Eclipse Modeling Framework [86] is one of the most widely accepted metamodeling technology.

  5. 5.

    Detail instructions on how to run CD xon various platforms together with its open-source distributions are available from http://www.ovmj.net/cdx. The versions used for this book are tagged as “cdj-RTSJ-COM” and “cdj-RTSJ”.

  6. 6.

    The Linux Rt-Preempt patch is available at www.kernel.org/pub/linux/kernel/projects/rt/.

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Acknowledgements

The CD xbenchmark was developed by Filip Pizlo and Ben Titzer at Purdue University. We thank Tomas Kalibera and Petr Maj for their help when re-implementing the benchmark. This work was partially supported by the Czech Science Foundation grant 201/09/H057.

Author information

Authors and Affiliations

  1. Purdue University, West Lafayette, IN, USA

    Ales Plsek

  2. INRIA Lille Nord-Europe, KTH (Royal Institute of Technology), Stockholm, Sweden

    Frederic Loiret

  3. Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic

    Michal Malohlava

Authors
  1. Ales Plsek
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  2. Frederic Loiret
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  3. Michal Malohlava
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Corresponding author

Correspondence to Ales Plsek .

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Editors and Affiliations

  1. , Facultad de Informática, DACYA, Universidad Complutense de Madrid, Calle del Profesor Gaecía Santesmas, Madrid, 28040, Spain

    M. Teresa Higuera-Toledano

  2. , Department of Computer Science, University of York, n/a, Heslington, YO10 5DD, United Kingdom

    Andy J. Wellings

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Plsek, A., Loiret, F., Malohlava, M. (2012). Component-Oriented Development for Real-Time Java. In: Higuera-Toledano, M., Wellings, A. (eds) Distributed, Embedded and Real-time Java Systems. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-8158-5_11

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  • DOI: https://doi.org/10.1007/978-1-4419-8158-5_11

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  • Online ISBN: 978-1-4419-8158-5

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