org.opencms.util
Interface I_CmsHtmlNodeVisitor

All Known Implementing Classes:

CmsHtml2TextConverter, CmsHtmlDecorator, CmsHtmlParser, CmsLinkProcessor

public interface I_CmsHtmlNodeVisitor

Interface for a combination of a visitor of HTML documents along with the hook to start the parser / lexer that triggers the visit.

Since:

6.1.3

Version:

$Revision: 1.2 $

Author:

Alexander Kandzior

Method Summary

String	getConfiguration() Returns the configuartion String of this visitor or the empty String if was not provided before.
String	getResult() Returns the text extraction result.
String	process(String html, String encoding) Extracts the text from the given html content, assuming the given html encoding.
void	setConfiguration(String configuration) Set a configuartion String for this visitor.
void	visitEndTag(Tag tag) Visitor method (callback) invoked when a closing Tag is encountered.
void	visitRemarkNode(Remark remark) Visitor method (callback) invoked when a remark Tag (HTML comment) is encountered.
void	visitStringNode(Text text) Visitor method (callback) invoked when a remark Tag (HTML comment) is encountered.
void	visitTag(Tag tag) Visitor method (callback) invoked when a starting Tag (HTML comment) is encountered.

Method Detail

getConfiguration

String getConfiguration()

Returns the configuartion String of this visitor or the empty String if was not provided before.

Returns:

the configuartion String of this visitor - by this contract never null but an empty String if not provided.

See Also:

setConfiguration(String)

getResult

String getResult()

Returns the text extraction result.

Returns:

the text extraction result

process

String process(String html,
               String encoding)
               throws ParserException

Extracts the text from the given html content, assuming the given html encoding.

Parameters:

html - the content to extract the plain text from

encoding - the encoding to use

Returns:

the text extracted from the given html content

Throws:

ParserException - if something goes wrong

setConfiguration

void setConfiguration(String configuration)

Set a configuartion String for this visitor.

This will most likely be done with data from an xsd, custom jsp tag, ...

Parameters:

configuration - the configuration of this visitor to set.

visitEndTag

void visitEndTag(Tag tag)

Visitor method (callback) invoked when a closing Tag is encountered.

Parameters:

tag - the tag that is ended.

See Also:

NodeVisitor.visitEndTag(org.htmlparser.Tag)

visitRemarkNode

void visitRemarkNode(Remark remark)

Visitor method (callback) invoked when a remark Tag (HTML comment) is encountered.

Parameters:

remark - the remark Tag to visit.

See Also:

NodeVisitor.visitRemarkNode(org.htmlparser.Remark)

visitStringNode

void visitStringNode(Text text)

Visitor method (callback) invoked when a remark Tag (HTML comment) is encountered.

Parameters:

text - the text that is visited.

See Also:

NodeVisitor.visitStringNode(org.htmlparser.Text)

visitTag

void visitTag(Tag tag)

Visitor method (callback) invoked when a starting Tag (HTML comment) is encountered.

Parameters:

tag - the tag that is visited.

See Also:

NodeVisitor.visitTag(org.htmlparser.Tag)