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Comparison of Fully Software and Hardware Accelerated XML Processing
Knap, Tomáš
The aim of this work is to compare XML processing abilities of standard software solutions and hardware accelerated scenarios using a new generation of XML processing appliances. The emphasis is puts on the speed of processing XML documents and on the demandingness of various operations over XML data. Firstly, we describe the used XML technologies and corresponding implementations in Java. Consequently, we characterize the core parts of our testing frameworks - IBM WebSphere DataPower Integration Appliance XI50 for hardware accelerated and IBM WebSphere Application Server 6.1 for standard XML processing. Further, the testing hierarchy involving two distinct testing suites - "Flat" and "Onion"- and tens of testing scenarios are defined. The "Flat" testing suite covers parsing, validating, transforming, and securing operations over XML data applied individually to a wide range of testing data, without bothering with concurrency. On the other hand, the "Onion" testing suite is a stress test combining several operations together. Both testing suites are executed on our testing framework and several measures (such as throughput) are collected and analyzed using n-dimensional OLAP cubes. The results show under which circumstances the appliance for hardware accelerated XML processing is worth using on and quantify...
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Comparison of Fully Software and Hardware Accelerated XML Processing
Knap, Tomáš
The aim of this work is to compare XML processing abilities of standard software solutions and hardware accelerated scenarios using a new generation of XML processing appliances. The emphasis is puts on the speed of processing XML documents and on the demandingness of various operations over XML data. Firstly, we describe the used XML technologies and corresponding implementations in Java. Consequently, we characterize the core parts of our testing frameworks - IBM WebSphere DataPower Integration Appliance XI50 for hardware accelerated and IBM WebSphere Application Server 6.1 for standard XML processing. Further, the testing hierarchy involving two distinct testing suites - "Flat" and "Onion"- and tens of testing scenarios are defined. The "Flat" testing suite covers parsing, validating, transforming, and securing operations over XML data applied individually to a wide range of testing data, without bothering with concurrency. On the other hand, the "Onion" testing suite is a stress test combining several operations together. Both testing suites are executed on our testing framework and several measures (such as throughput) are collected and analyzed using n-dimensional OLAP cubes. The results show under which circumstances the appliance for hardware accelerated XML processing is worth using on and quantify...
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XML bezpečnost a její uplatnění v univerzitním informačním prostředí
Brechlerová, Dagmar ; Ivánek, Jiří (advisor) ; Doucek, Petr (referee) ; Nováček, Jan (referee) ; Čapek, Jan (referee)
XML security je komplexem bezpečnostních řešení, která spojují rysy XML a internetu k řešení bezpečnosti zejména v rozsáhlých počítačových sítích. XML security se velmi dynamicky rozvíjí, v současnosti jsou některé části (podpis, šifrování) již ve fázi konečného vývoje, jiné stále procházejí velmi rychlým vývojem, který je velmi obtížné sledovat. Hlavním cílem práce bylo kriticky zmapovat oblast XML security, popsat výhody, zápory i rizika proti jiným bezpečnostním řešením, a navrhnout některé možnosti použití v univerzitním informačním systému.
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