Setting Filter Factory parameters

The Filter Factory parameters are loaded through the FilterFactory.default.xml configuration file.

The list of default filters in the configuration file are:

Default HTML filter
Default EML filter
SearchML export multi-filter
SearchML filter

Each filter specifies a number of settings, which determine which class is loaded for the filter, which paragraph extractor is used, and the MIME types to which the filter applies. Table 4-12 shows the filter setting parameters.

**Table 4-12: Filter settings**
Parameter	Default	Description
className	None	The Java class that defines the filter.
extractorClassName	None	The Java class used for extracting paragraphs from the filtered text.
mimeTypes	None	The list of MIME types that are associated with the filter.
timeout	45,000	Indicates the time in milliseconds the filter waits while filtering a document. If the filter exceeds the given time, the filter aborts. This parameter is used mainly by the Stellent filter.
keepTempFiles	false	If set to true, the filter keeps any temporary files produced during the filtering process. This is used mainly by the Stellent filter.

In addition to the filter-specific settings, there are a number of general filter settings that help the extractors determine the paragraphs. The filter ensures that each paragraph is between the minimum and maximum lengths and aims for the ideal paragraph length.

Table 4-13 shows the paragraph length settings.

**Table 4-13: Paragraph settings**
Parameter	Default	Description
default.minParaLen	250	The minimum number of characters in a paragraph
default.idealParaLen	500	The ideal number of characters in a paragraph
default.maxParaLen	1,000	The maximum number of characters in a paragraph