ExtractPageSAXHandler Class Reference

A SAX handler that exports revisions metadata from a Wikipedia-stub-dump file into a single xml file. More...

Inherits DefaultHandler.

Public Member Functions
	ExtractPageSAXHandler (File exportFile, String pageTitle) throws ParserConfigurationException
	Creates a new ExtractPageSAXHandler instance.
void	startDocument () throws SAXException
void	startElement (String uri, String localName, String qName, Attributes attributes) throws SAXException
void	characters (char[] ch, int start, int length) throws SAXException
void	endElement (String uri, String localName, String qName) throws SAXException
void	endDocument () throws SAXException

Private Attributes
File	exportFile
	the export file to export to
DocumentBuilderFactory	docFactory
	the document builder factory used to create the DOM document builder
DocumentBuilder	docBuilder
	the document builder used to create the DOM document
Document	currentDoc
	the current DOM document instance.
Element	currentRoot
	the current root element instance.
Stack< Element >	elements = new Stack<Element>()
	a stack containing the current parent element.
boolean	export = false
	indicates if the parser is inside a page element that should be exported
boolean	inTitle = false
	indicates if the parser is inside a title tag
boolean	inRevision = false
	indicates if the parser is inside a revision tag
String	pageTitle = ""
	the title of the page which should be exported

Detailed Description

A SAX handler that exports revisions metadata from a Wikipedia-stub-dump file into a single xml file.

This Handler throws an SAXException with the message "Finished extraction" after the page has been found and exported.

See Also

https://meta.wikimedia.org/wiki/Data_dumps/Dump_format

Author

Florian Zoubek zoube.nosp@m.k@bi.nosp@m.tanda.nosp@m.rt.a.nosp@m.t

Constructor & Destructor Documentation

ExtractPageSAXHandler.ExtractPageSAXHandler	(	File	exportFile,
		String	pageTitle
	)		throws ParserConfigurationException

Creates a new ExtractPageSAXHandler instance.

For details and behavior of this handler see the class description.

Parameters

exportFile	the file to export to
pageTitle	the title of the page which should be exported

Exceptions

ParserConfigurationException

Member Function Documentation

void ExtractPageSAXHandler.characters	(	char[]	ch,
		int	start,
		int	length
	)		throws SAXException

void ExtractPageSAXHandler.endDocument

(

)

throws SAXException

void ExtractPageSAXHandler.endElement	(	String	uri,
		String	localName,
		String	qName
	)		throws SAXException

void ExtractPageSAXHandler.startDocument

(

)

throws SAXException

void ExtractPageSAXHandler.startElement	(	String	uri,
		String	localName,
		String	qName,
		Attributes	attributes
	)		throws SAXException

Member Data Documentation

Document ExtractPageSAXHandler.currentDoc

private

the current DOM document instance.

null until the page has been found.

Element ExtractPageSAXHandler.currentRoot

private

the current root element instance.

null until the page has been found.

DocumentBuilder ExtractPageSAXHandler.docBuilder

private

the document builder used to create the DOM document

DocumentBuilderFactory ExtractPageSAXHandler.docFactory

private

the document builder factory used to create the DOM document builder

Stack<Element> ExtractPageSAXHandler.elements = new Stack<Element>()

private

a stack containing the current parent element.

boolean ExtractPageSAXHandler.export = false

private

indicates if the parser is inside a page element that should be exported

File ExtractPageSAXHandler.exportFile

private

the export file to export to

boolean ExtractPageSAXHandler.inRevision = false

private

indicates if the parser is inside a revision tag

boolean ExtractPageSAXHandler.inTitle = false

private

indicates if the parser is inside a title tag

String ExtractPageSAXHandler.pageTitle = ""

private

the title of the page which should be exported

---

The documentation for this class was generated from the following file:

• src/ExtractPageSAXHandler.java