org.hfbk.vis.source.SourceRegExp Class Reference

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Public Member Functions
	SourceRegExp (URL url)
Package Functions
abstract String	url () throws UnsupportedEncodingException
abstract String	matcher ()
abstract void	parse (String[] matches) throws IOException
void	buildGraph () throws IOException
Package Attributes
Matcher	matcher
Node	root

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Detailed Description

an abstract Source to disassemble a web page into a visualisable graph by an regular expression.

first a web page, given by overriding url() is fetched.

the expression, which may contain paranthesised subgroups, defined by overriding matcher(), is applied to the whole pages content. then for every match parse(String[ ] matches) is called with the subgroups. Override this to build the graph via add(..).

See also:

SourceGoogle for a simple example.

Author:

paul

Definition at line 28 of file SourceRegExp.java.

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Constructor & Destructor Documentation

org.hfbk.vis.source.SourceRegExp.SourceRegExp

(

URL

url

)

Definition at line 30 of file SourceRegExp.java.

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Member Function Documentation

abstract String org.hfbk.vis.source.SourceRegExp.url

(

)

throws UnsupportedEncodingException [package, pure virtual]

override this to set URL of web page to parse

Implemented in org.hfbk.vis.source.SourceGoogle, org.hfbk.vis.source.SourceGoogleImages, org.hfbk.vis.source.SourceWikipedia, and org.hfbk.vis.source.SourceYoutube.

Referenced by org.hfbk.vis.source.SourceRegExp.buildGraph().

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abstract String org.hfbk.vis.source.SourceRegExp.matcher

(

)

[package, pure virtual]

override this to regular expression to extract data

Implemented in org.hfbk.vis.source.SourceGoogle, org.hfbk.vis.source.SourceGoogleImages, org.hfbk.vis.source.SourceWikipedia, and org.hfbk.vis.source.SourceYoutube.

Referenced by org.hfbk.vis.source.SourceRegExp.buildGraph().

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abstract void org.hfbk.vis.source.SourceRegExp.parse

(

String[]

matches

)

throws IOException [package, pure virtual]

override this to parse each matches subgroups

Exceptions:

IOException

Implemented in org.hfbk.vis.source.SourceGoogle, org.hfbk.vis.source.SourceGoogleImages, and org.hfbk.vis.source.SourceWikipedia.

Referenced by org.hfbk.vis.source.SourceRegExp.buildGraph().

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void org.hfbk.vis.source.SourceRegExp.buildGraph

(

)

throws IOException [package, virtual]

Implements org.hfbk.vis.source.Source.

Reimplemented in org.hfbk.vis.source.SourceWikipedia, and org.hfbk.vis.source.SourceYoutube.

Definition at line 44 of file SourceRegExp.java.

References org.hfbk.vis.source.SourceRegExp.matcher(), org.hfbk.vis.source.SourceRegExp.parse(), org.hfbk.vis.source.Source.silent, and org.hfbk.vis.source.SourceRegExp.url().

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Member Data Documentation

Matcher org.hfbk.vis.source.SourceRegExp.matcher [package]

Definition at line 32 of file SourceRegExp.java.

Node org.hfbk.vis.source.SourceRegExp.root [package]

Definition at line 33 of file SourceRegExp.java.

Referenced by org.hfbk.vis.source.SourceWikipedia.buildGraph(), org.hfbk.vis.source.SourceYoutube.parse(), org.hfbk.vis.source.SourceGoogleImages.parse(), org.hfbk.vis.source.SourceGoogle.parse(), org.hfbk.vis.source.SourceGoogle.SourceGoogle(), org.hfbk.vis.source.SourceGoogleImages.SourceGoogleImages(), org.hfbk.vis.source.SourceWikipedia.SourceWikipedia(), and org.hfbk.vis.source.SourceYoutube.SourceYoutube().

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

• VisClient/org/hfbk/vis/source/SourceRegExp.java

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