Package com.norconex.importer.handler.transformer.impl

Class StripBetweenTransformer

  • All Implemented Interfaces:
    IXMLConfigurable, IImporterHandler, IDocumentTransformer
    public class StripBetweenTransformer
extends AbstractStringTransformer
implements IXMLConfigurable

    Strips any content found between a matching start and end strings. The matching strings are defined in pairs and multiple ones can be specified at once.

    This class can be used as a pre-parsing (text content-types only) or post-parsing handlers.

    XML configuration usage:

    
<handler
    class="com.norconex.importer.handler.transformer.impl.StripBetweenTransformer"
    maxReadSize="(max characters to read at once)"
    sourceCharset="(character encoding)">
  <!-- multiple "restrictTo" tags allowed (only one needs to match) -->
  <restrictTo>
    <fieldMatcher>(field-matching expression)</fieldMatcher>
    <valueMatcher>(value-matching expression)</valueMatcher>
  </restrictTo>
  <!-- multiple stripBetween tags allowed -->
  <stripBetween
      inclusive="[false|true]">
    <startMatcher>(expression matching "left" delimiter)</startMatcher>
    <endMatcher>(expression matching "right" delimiter)</endMatcher>
  </stripBetween>
</handler>

    XML usage example:

    
<handler
    class="StripBetweenTransformer">
  <stripBetween
      inclusive="true">
    <startMatcher>
      <![CDATA[<!-- SIDENAV_START -->]]>
    </startMatcher>
    <endMatcher>
      <![CDATA[<!-- SIDENAV_END -->]]>
    </endMatcher>
  </stripBetween>
</handler>

    The following will strip all text between (and including) these two HTML comments: <!-- SIDENAV_START --> and <!-- SIDENAV_END -->.

    Author:
    Pascal Essiembre