gov.llnl.ontology.text.corpora
Class PubMedDocumentReader

java.lang.Object
  org.xml.sax.helpers.DefaultHandler
      gov.llnl.ontology.text.corpora.PubMedDocumentReader

All Implemented Interfaces:

DocumentReader, ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public class PubMedDocumentReader
extends DefaultHandler
implements DocumentReader

A DocumentReader for the PubMed corpus. PubMed is formatted as a series of documents in a single xml file. this DocumentReader works as a DefaultHandler for the SAXParser and will read one full document per call to readDocument(java.lang.String, java.lang.String). Text in NameOfSubstance tags are the document labels, text in ArticleTitle is the title, text in PMID serves as the id and key value, and text in Abstract is the raw document text.

This is not thread safe.

Author:

Keith Stevens

Constructor Summary

PubMedDocumentReader()
Creates a new PubMedDocumentReader

Method Summary

void	characters(char[] ch, int start, int length)
void	endElement(String uri, String localName, String name)
Document	readDocument(String originalText) Returns a Document represented by the given string.
Document	readDocument(String originalText, String corpusName) Returns a Document represented by the given string and uses corpusName as the corpus name for the returned Document.
void	startElement(String uri, String localName, String name, Attributes atts)

Methods inherited from class org.xml.sax.helpers.DefaultHandler

endDocument, endPrefixMapping, error, fatalError, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

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

Constructor Detail

PubMedDocumentReader

public PubMedDocumentReader()

Creates a new PubMedDocumentReader

Method Detail

readDocument

public Document readDocument(String originalText,
                             String corpusName)

Returns a Document represented by the given string and uses corpusName as the corpus name for the returned Document.

Specified by:

readDocument in interface DocumentReader

readDocument

public Document readDocument(String originalText)

Returns a Document represented by the given string.

Specified by:

readDocument in interface DocumentReader

startElement

public void startElement(String uri,
                         String localName,
                         String name,
                         Attributes atts)
                  throws SAXException

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class DefaultHandler

Throws:

SAXException

characters

public void characters(char[] ch,
                       int start,
                       int length)
                throws SAXException

Specified by:

characters in interface ContentHandler

Overrides:

characters in class DefaultHandler

Throws:

SAXException

endElement

public void endElement(String uri,
                       String localName,
                       String name)
                throws SAXException

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class DefaultHandler

Throws:

SAXException