臺灣博碩士論文加值系統

RSS和Atom網摘是用可擴展置標語言來呈現經常更新的網頁中的項目的一種形式，這種形式讓使用者可以透過網摘閱讀器來訂閱聯播的內容。隨著網摘因為部落格的普及而越來越受採用，各式各樣讓網摘包含更多語意資訊的延伸方式被提出來，只把網摘當作網路上簡單的可擴展置標語言文件來看待的普通工具不足以用來開發應用程式。
本論文提出一個幫助開發RSS/Atom相關應用程式的中介軟體，它為開發者取得、解析和儲存網摘，並提供一套方便使用的介面讓開發者可以編寫程序化或事件觸法式的應用程式。對比起視窗RSS平台，此中介軟體較具有彈性也較容易使用。當換去具工業強度的資料庫和伺服器，它可以比組織用來解決現實世界中的整合問題。

RSS and Atom feeds are XML representation of the entries in frequently updating websites, which enable users to subscribe to those syndicated contents using feed readers. As feeds are gaining more and more adoptions due to the ubiquity of blogs, various extensions are written for them to carry more semantic information. Ordinary tools which treat them as simply XML documents on the web are not sufficient for application development.
In this paper, a middleware is proposed to aid application development involving RSS/Atom feeds. It handles fetching, parsing and storage of feeds for developers and provides them with a set of easy-to-use interfaces to write procedural and event-driven applications. Compared with the Windows RSS Platform, it is more flexible and easier to work with. When extended with industrial-strength databases and servers, it can be use by an organization to solve real world integration problems.

1 Introduction........................................................................................1
1.1 Preface........................................................................................................1
1.2 Motivation..................................................................................................1
1.3 Objectives ..................................................................................................3
1.4 Problems and Solutions..............................................................................3
2 Background and Related Works.......................................................5
2.1 Background................................................................................................5
2.2 Related Works ............................................................................................7
3 System Architecture.........................................................................11
3.1 Overview..................................................................................................11
3.2 Feed DB, Storer and Retriever.................................................................11
3.3 Feed Sweeper, Monitor and Fetcher ........................................................13
3.4 Feed Notifier ............................................................................................14
3.5 Interfaces..................................................................................................14
3.6 Program Flow...........................................................................................16
4 Implementation Details ...................................................................19
4.1 Overview..................................................................................................19
4.2 Feed discovery .........................................................................................19
4.3 Feed fetching............................................................................................20
4.4 Feed parsing .............................................................................................20
4.5 Interfaces..................................................................................................21
4.6 Tools and Libraries ..................................................................................22
5 Scenario Demonstrations.................................................................23
5.1 Ajax Product Spy .....................................................................................23
5.2 Bug Notifier .............................................................................................25
6 Comparison and Discussion............................................................30
6.1 Comparison ..............................................................................................30
6.2 Discussion................................................................................................33
7 Future Works and Conclusion........................................................34
7.1 Future Works............................................................................................34
7.2 Conclusion ...............................................................................................34
References ................................................................................................36

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ml
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37
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http://ws.apache.org/xmlrpc/xmlrpc2/
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http://sourceforge.net/projects/jmsn/