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Method for on-line transferring operation instance in combined service evolution

A technology for running instances and combining services, applied in the direction of instruments, data processing applications, resources, etc., can solve problems such as unreasonable skipping, inability to migrate, and no corresponding state can be found, so as to avoid dynamic change errors and improve correctness. Effect

Inactive Publication Date: 2012-08-29
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some of the technologies provided in the prior art to run instance state migration during the evolution of composite services have certain defects: for example, dynamic change bugs (Dynamic Change Bug), that is, after evolution, certain services may be executed multiple times or be skipped unreasonably. However, the state in the running instance before evolution cannot find a suitable corresponding state in the running instance after evolution; all running instances that can be migrated cannot be migrated; the algorithm complexity is high, etc.

Method used

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  • Method for on-line transferring operation instance in combined service evolution
  • Method for on-line transferring operation instance in combined service evolution
  • Method for on-line transferring operation instance in combined service evolution

Examples

Experimental program
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Embodiment 1

[0046] image 3 It is a flowchart of a method for online migration of running instances in composite service evolution provided by Embodiment 1 of the present invention. The method may include the steps of:

[0047] Step 100, convert the evolved workflow network into a reachable graph, record it as the evolved reachable graph, and obtain the initial transition sequence set of the evolved workflow network based on the breadth-first method according to the evolved reachable graph, the initial transition sequence The set can be recorded as a log L;

[0048] In this step, the workflow network can be converted into a reachable graph according to the relationship introduced above, that is, each state of the evolved workflow network can be recorded as each vertex of the evolved reachable graph; the transition between adjacent states can be recorded is the weight of the edge between each vertex of the reachable graph after evolution.

[0049] The initial transition sequence set obt...

Embodiment 2

[0072] The method for online migration of running instances in the evolution of composite services provided by Embodiment 2 of the present invention specifically takes supply chain composite services as an example to illustrate the feasibility and correctness of the method, specifically the application scenario of order processing composite services in supply chain management , figure 1 with figure 2 Shown are the pre-evolution workflow network and the pre-evolution reachability graph respectively. Where transfer service t 3 with assembly service t 4 Because there is no direct causal relationship, it can be executed concurrently.

[0073] The evolution of the combination service involves the following aspects: In order to support multiple payment methods, the combination service needs to increase the payment of Paypal (a third-party online transfer service) on the basis of the traditional bank transfer payment function. Support, at this time, you can apply the option to a...

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Abstract

The invention provides a method for on-line transferring an operation instance in a combined service evolution. The method comprises the steps of: acquiring an initial transferring sequence collection according to an evolved picture, deleting a transferring sequence which contains newly added selective adding operation, deleting the newly added transferring sequence from the residual transferringsequences, deleting the transferring from the performed transferring sequences so as to acquire a transited performed transferring sequence, determining the capability of on-line transferring when the transferring sequence is matched with preceding k transferring which accords with the transited performed transferring sequence, adding the new transferring to a matched transferring sequence, confirming that the last transferring position in a valid transferring sequence sub-collection is in a headmost performing transferring sequence, determining the state of a direct following peak on the border of the last transferring in the performing transferring sequence as the transferred state, and performing the instance starting from the transferred state according to the performing transferring sequence. The method of the invention can promote the accuracy of on-line transferring the operation instance.

Description

technical field [0001] The embodiment of the present invention relates to a business process management technology in a composite service, in particular to an online migration method for a running instance in the evolution of a composite service. Background technique [0002] In recent years, with the continuous development of Internet technology, more and more resources have been gathered on the network, including not only rich physical resources such as computing and storage, but also a large number of software and service resources, and the number and types of resources are increasing day by day. , thus providing an important foundation for service-based network software development. At the same time, Simple Object Access Protocol (SOAP for short), Web Services Description Language (WSDL for short), Universal Description Discovery and Integration (UDDI for short) protocols and business process execution Language (Business Process Execution Language, referred to as BPEL) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q10/00
Inventor 孙海龙刘旭东曾晋纪一鹏
Owner BEIHANG UNIV