Plugin properties

You can set the plugin properties in the default.xml file.

The Web Crawler contains a number of plugins that perform the core work of the crawler tasks. By using the properties listed in the table, you can configure which plugins to activate and how to handle non-activated plugins that are needed by activated plugins.

Property Name

Property Value

plugin.folders

Comma-delimited list of directory pathnames (default is CAS/version/lib/web-crawler/plugins). Specifies the directories where the plugins are located. Each element may be a relative or absolute path. If absolute, it is used as-is; If relative, it is searched for on the CLASSPATH.

plugin.auto-activation

Boolean value (default is true). Specifies if some plugins that are not activated by the plugin.includes and plugin.excludes properties must be automatically activated if they are needed by some activated plugins.

plugin.includes

Regular expression. Specifies which plugin IDs to include. Any plugin not matching this expression is excluded.

plugin.excludes

Regular expression (default is empty). Specifies which plugin IDs to exclude.

The default regular expression value for the plugin.includes property activates these plugins:

The plugin.folders property lets you specify the location of the plugins directory.

If you retain the default .../lib/web-crawler/plugins location, you have to run the web-crawler startup script from the Web Crawler's root directory. If you specify an abolute path for the location, you can run the script from any other directory on the machine.

To specify the plugins directory:

  1. In a text editor, open the default.xml file.

  2. Modify the plugin.folders property as needed.

  3. Save and close the file.

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