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首页> 外文会议>E-Commerce and Web Technologies; Lecture Notes in Computer Science; 4082 >RLinda: A Petri Net Based Implementation of the Linda Coordination Paradigm for Web Services Interactions
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RLinda: A Petri Net Based Implementation of the Linda Coordination Paradigm for Web Services Interactions

机译：RLinda：用于Web服务交互的Linda协调范例的基于Petri网的实现

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摘要

The core functionality of Web-service middlewares tries to wrap existing business logics and make them accessible as Web services. Recently, well-known standardization initiatives have proposed some high-level declarative languages for the description of coordination protocols and the implementation of coordination middlewares. In parallel to these initiatives, an increasing interest on the use of classical coordination models on distributed environments has been shown. In this work we present a Linda-like coordination framework using Petri nets, which is executed by the Renew tool, a high-level Petri net interpreter developed in Java, and subsequently exposed as a Web service able to be used by other services for coordination purposes. The implementation is based on an extension of the original Linda model that improves the tuple representation capabilities and extends the matching functions used for the recovery of tuples from the coordination space. The efficiency of the proposed implementation has been empirically evaluated on a cluster computing environment, and its performances compared with the previously reported ones related to JavaSpaces.
机译：Web服务中间件的核心功能试图包装现有的业务逻辑并使它们可作为Web服务进行访问。最近，著名的标准化倡议提出了一些高级声明性语言来描述协调协议和协调中间件的实现。与这些举措并行的是，人们对在分布式环境中使用经典协调模型的兴趣日益浓厚。在这项工作中，我们展示了一个使用Petri网的类似于Linda的协调框架，该框架由Renew工具执行，Renew工具是用Java开发的高级Petri网络解释器，随后作为Web服务公开，可以被其他服务用于协调目的。该实现基于原始Linda模型的扩展，该模型改进了元组表示功能，并扩展了用于从协调空间恢复元组的匹配功能。已在群集计算环境上通过经验评估了所提出实现的效率，并将其性能与先前报道的与JavaSpaces有关的性能进行了比较。

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