Rapport hebdomadaire 8

Apprentissage de Xerces, une librairie Java pour XML.

Mots-clés:

Xerces, Java, SAX, DOM.

Bibliographie:

XML and Java: Developing Web Application; Hiroshi Maruyama, Kent Tamura, Naohiko Uramoto (IBM), ed. Addison-Wesley 1999
Unleashed XML; Michael Morrison, ed. Sams Publishing 2000

Sites internet:

Xerces - XML parsers in Java, C++ (with Perl and COM bindings):
http://xml.apache.org/xerces-j/index.html
The Xerces Java Parser 1.3.1 supports XML 1.0 recommendation and contains advanced parser functionality, such as XML Schema, DOM Level 2 version 1.0, and SAX Version 2, in addition to supporting the industry-standard DOM Level 1 and SAX version 1 APIs.

Acknowledgment: I have added the address
barkati@edite-de-paris.com.fr
to the xerces-j-user mailing list.

Acknowledgment: I have added the address
barkati@edite-de-paris.com.fr
to the batik-users mailing list.

Apprentissage de Xerces:

La version 1.3.1 de Xerces propose des parsers DOM (Document Object Model), SAX (Simple API for XML), et SAX2. Une première analyse comparative a été faite, ainsi qu'un test positif de chargement et d'analyse de fichier MusicXML:

[barkati@ceres sax]$ java sax.SAXCount ~/MusicXML/mut.xml

/home/barkati/MusicXML/mut.xml: 13218 ms (9120 elems, 730 attrs, 56139 spaces, 15060 chars)

[barkati@ceres sax]$ java sax.SAX2Count ~/MusicXML/mut.xml

/home/barkati/MusicXML/mut.xml: 16154 ms (9120 elems, 730 attrs, 56139 spaces, 15060 chars)

[barkati@ceres sax]$ cd -

[barkati@ceres dom]$ java dom.DOMCount ~/MusicXML/mut.xml

/home/barkati/MusicXML/mut.xml: 15877 ms (9120 elems, 730 attrs, 56139 spaces, 15060 chars)

La prochaine étape concerne XSL.

Par rapport à Java, deux modifications ont permis d'utiliser correctement Xerces:

export CLASSPATH=.:$JAVA_HOME/

Pour complier un ficher appartenant à un package, il faut préciser le nom du package à la compilation:

[barkati@ceres dom]$ java dom.DOMCount good.xml

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