de.unidu.is.text
Class HTMLFilter

java.lang.Object
  de.unidu.is.text.AbstractFilter
      de.unidu.is.text.AbstractSingleItemFilter
          de.unidu.is.text.HTMLFilter

All Implemented Interfaces:

Filter, SingleItemFilter

public class HTMLFilter

extends AbstractSingleItemFilter

This filter extracts all text from a specified HTML string, and returns the text content in a single string.

Since:

2003-07-04

Version:

$Revision: 1.9 $, $Date: 2005/03/09 08:59:15 $

Author:

Henrik Nottelmann

Field Summary

Fields inherited from class de.unidu.is.text.AbstractFilter

nextFilter

Constructor Summary

HTMLFilter(Filter nextFilter)
Creates a new instance and sets the next filter in the chain.

Method Summary

java.lang.Object	run(java.lang.Object value) Extracts the text from HTML, removes all tags, replaces well-known entities and removes the rest of them, and returns a single strring.
protected boolean	substringStartsWith(java.lang.StringBuffer buffer, int index, java.lang.String str) Tests whether the specified string buffer starts (from the specified index) with the specified string (where all letters are converted to lowercase).

Methods inherited from class de.unidu.is.text.AbstractSingleItemFilter

filter

Methods inherited from class de.unidu.is.text.AbstractFilter

apply, apply

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HTMLFilter

public HTMLFilter(Filter nextFilter)

Creates a new instance and sets the next filter in the chain.

Parameters:

nextFilter - next filter in the filter chain

Method Detail

run

public java.lang.Object run(java.lang.Object value)

Extracts the text from HTML, removes all tags, replaces well-known entities and removes the rest of them, and returns a single strring.

Parameters:

value - HTML string

Returns:

text content of the HTML string

substringStartsWith

protected boolean substringStartsWith(java.lang.StringBuffer buffer,
                                      int index,
                                      java.lang.String str)

Tests whether the specified string buffer starts (from the specified index) with the specified string (where all letters are converted to lowercase).

Parameters:

buffer - string buffer to tested

index - starting index

str - string to test

Returns:

true if the specified string buffer starts (from the specified index) with the specified string