Reliable Messaging for BPEL Processes

2006 IEEE International Conference on Web Services (ICWS'06) Pub Date : 2006-09-18 DOI:10.1109/ICWS.2006.111

A. Charfi, Benjamin Schmeling, M. Mezini

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引用次数: 14

Abstract

There are currently two specifications that address reliable messaging in Web services: WS-reliablemessaging and WS-reliability. Both specifications consider the general case of Web services as being black boxes with WSDL interfaces. In this paper, we address the reliable messaging requirements of composite Web wervices in BPEL. In such Web services, the BPEL programmer sees not only the WSDL interface but also the implementation, i.e., the process definition. BPEL processes have several reliable messaging requirements, which cannot be supported by current reliable messaging specifications. The most challenging of those requirements is to support ordered message delivery between many endpoints. Current reliable messaging specifications support only reliable messaging between two endpoints. This paper presents several approaches to support multi-party reliable messaging and introduces a reliable messaging Web service for BPEL that is integrated with a BPEL engine by using a process container framework. This Web service supports the reliable messaging requirements of BPEL processes and its implementation is based on Sandesha, which is an open source implementation of WS-ReliableMessaging

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BPEL流程的可靠消息传递

目前有两种规范处理Web服务中的可靠消息传递:WS-reliablemessaging和WS-reliability。这两个规范都将Web服务的一般情况视为带有WSDL接口的黑盒。在本文中，我们将讨论BPEL中组合Web服务的可靠消息传递需求。在这样的Web服务中，BPEL程序员不仅可以看到WSDL接口，还可以看到实现，即流程定义。BPEL流程有几个可靠的消息传递需求，当前的可靠消息传递规范不支持这些需求。这些需求中最具挑战性的是支持多个端点之间有序的消息传递。当前的可靠消息传递规范仅支持两个端点之间的可靠消息传递。本文介绍了几种支持多方可靠消息传递的方法，并介绍了一个用于BPEL的可靠消息传递Web服务，该服务通过使用流程容器框架与BPEL引擎集成。此Web服务支持BPEL流程的可靠消息传递需求，其实现基于Sandesha，后者是WS-ReliableMessaging的开源实现

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2006 IEEE International Conference on Web Services (ICWS'06)

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