Class NamedEntityParser

All Implemented Interfaces:
Serializable, Parser

public class NamedEntityParser extends AbstractParser
This implementation of Parser extracts entity names from text content and adds it to the metadata.

All the metadata keys will have a common suffix "NER_"

The Named Entity recogniser implementation can be changed by setting the system property "ner.impl.class" value to a name of class that implements NERecogniser contract

See Also:
  • Field Details

    • LOG

      public static final org.slf4j.Logger LOG

      public static final Set<MediaType> MEDIA_TYPES

      public static final String MD_KEY_PREFIX
      See Also:

      public static final String DEFAULT_NER_IMPL

      public static final String SYS_PROP_NER_IMPL
      See Also:
    • secondaryParser

      public Tika secondaryParser
  • Constructor Details

    • NamedEntityParser

      public NamedEntityParser()
  • Method Details

    • getSupportedTypes

      public Set<MediaType> getSupportedTypes(ParseContext parseContext)
      Description copied from interface: Parser
      Returns the set of media types supported by this parser when used with the given parse context.
      parseContext - parse context
      immutable set of media types
    • parse

      public void parse(InputStream inputStream, ContentHandler contentHandler, Metadata metadata, ParseContext parseContext) throws IOException, SAXException, TikaException
      Description copied from interface: Parser
      Parses a document stream into a sequence of XHTML SAX events. Fills in related document metadata in the given metadata object.

      The given document stream is consumed but not closed by this method. The responsibility to close the stream remains on the caller.

      Information about the parsing context can be passed in the context parameter. See the parser implementations for the kinds of context information they expect.

      inputStream - the document stream (input)
      contentHandler - handler for the XHTML SAX events (output)
      metadata - document metadata (input and output)
      parseContext - parse context
      IOException - if the document stream could not be read
      SAXException - if the SAX events could not be processed
      TikaException - if the document could not be parsed