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Cross-domain incremental data exchange model and method based on exchange identification

A technology for exchanging identification and data exchange, which is applied in data exchange networks, digital transmission systems, electrical components, etc. It can solve the problem of difficulty in locating and exchanging data for modified data, and achieve the effect of efficient cross-domain data incremental exchange.

Inactive Publication Date: 2014-02-19
706 INST SECOND RES INST OF CHINAAEROSPACE SCI & IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to solve the problem that the modified data is difficult to locate and the amount of exchanged data is large in the traditional cross-domain environment, this paper proposes an A cross-domain data exchange model is proposed to ensure data security during cross-domain data exchange and ensure data controllability and data availability

Method used

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  • Cross-domain incremental data exchange model and method based on exchange identification
  • Cross-domain incremental data exchange model and method based on exchange identification
  • Cross-domain incremental data exchange model and method based on exchange identification

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Embodiment Construction

[0055] (1) Description of data exchange process

[0056] Step 1: The sub-authorization server sends a data update request to the parent server, and the server generates an exchange data file according to the request.

[0057] Step 2: The child server polls the parent server for the file generation status, if it is not completed, it continues to wait for the parent server to generate the data exchange file, and if it is completed, it sends a download request.

[0058] Step 3: The sub-server polls the download status. If the download is not completed, it will continue to wait for the download to complete. If the download is complete, it will update the data to the database.

[0059] Step 4: If the data update is successful, update the download data ID, if not, do not update the download ID.

[0060] Step 5: The child server generates an update data file to the parent server and uploads it to the parent server.

[0061] Step 6: Poll the upload status, continue to wait if the up...

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Abstract

The invention provides a cross-domain incremental data exchange model and a method based on exchange identification, and belongs to the field of data exchange in cross-domain environment. The model comprises a data layer, an exchange layer and a data transmission layer, wherein the exchange layer comprises an exchange identification module and an exchange strategy generation module. The data layer comprises a log analyzing module, an SQL statement reconstitution module, an XSD standard template, an XML file import and export module and a data calibration module. All the data are deleted or modified logically instead of physically when deleted or modified; even if one datum is modified or deleted, a new datum needs to be added behind the end data, the log analyzing module in the data layer analyzes SQL statements in a log to obtain a DML statement for operating a database, and therefore a target database executes the same statement to achieve date synchronization. Due to the fact that the model is used for incremental data exchange, the data exchange quantity each time is much smaller than that of a traditional method, and incremental data exchange is safer.

Description

technical field [0001] The invention belongs to the field of data exchange under the cross-domain environment. Background technique [0002] How to achieve fast and secure interconnection and collaborative work between domains is one of the important goals of cross-domain data exchange. Currently, mainstream data exchange technologies include: [0003] (1) Prepare a proprietary application system, which can establish a very effective switching system with high transmission efficiency and stable system, but there are disadvantages such as high construction and operation costs, and long development cycle; [0004] (2) Use the intermediary database format and compile a proprietary transmission method. The data exchange and transmission in this method are divided into two processes: conversion and transmission. There is no unified standard for realizing automation and data exchange between systems, and it is not universal; [0005] (3) Adopt distributed system DCOM / EJB, which ...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/70
Inventor 曾淑娟孟宪哲陈志浩王晓程王斌毛俐旻
Owner 706 INST SECOND RES INST OF CHINAAEROSPACE SCI & IND
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