/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.ctakes.dictionary.lookup.ae;
import org.apache.ctakes.dictionary.lookup.DictionaryEngine;
import org.apache.ctakes.dictionary.lookup.algorithms.DirectPassThroughImpl;
import org.apache.ctakes.dictionary.lookup.algorithms.LookupAlgorithm;
import org.apache.ctakes.dictionary.lookup.phrasebuilder.PhraseBuilder;
import org.apache.ctakes.dictionary.lookup.phrasebuilder.VariantPhraseBuilderImpl;
import org.apache.ctakes.dictionary.lookup.vo.LookupAnnotation;
import org.apache.ctakes.dictionary.lookup.vo.LookupToken;
import org.apache.ctakes.typesystem.type.syntax.*;
import org.apache.ctakes.typesystem.type.textspan.Sentence;
import org.apache.log4j.Logger;
import org.apache.uima.UimaContext;
import org.apache.uima.analysis_engine.annotator.AnnotatorInitializationException;
import org.apache.uima.cas.text.AnnotationIndex;
import org.apache.uima.jcas.JCas;
import org.apache.uima.jcas.JFSIndexRepository;
import org.apache.uima.jcas.tcas.Annotation;
import org.uimafit.util.JCasUtil;
import java.util.*;
/**
* @author Mayo Clinic
*/
public class DirectLookupInitializerImpl implements LookupInitializer {
private final String CANONICAL_VARIANT_ATTR = "canonicalATTR";
// LOG4J logger based on class name
final private Logger iv_logger = Logger.getLogger( getClass().getName() );
public DirectLookupInitializerImpl( final UimaContext uimaContext, final Properties props ) {
// TODO property validation could be done here
}
/**
* {@inheritDoc}
*/
@Override
public LookupAlgorithm getLookupAlgorithm( DictionaryEngine dictEngine ) throws AnnotatorInitializationException {
// variant support
final String[] variantArr = {CANONICAL_VARIANT_ATTR};
final PhraseBuilder pb = new VariantPhraseBuilderImpl( variantArr, true );
return new DirectPassThroughImpl( dictEngine, pb );
}
/**
* {@inheritDoc}
*/
@Override
public Iterator<LookupToken> getLookupTokenIterator( final JCas jcas ) throws AnnotatorInitializationException {
final List<LookupToken> ltList = new ArrayList<LookupToken>();
final JFSIndexRepository indexes = jcas.getJFSIndexRepository();
final AnnotationIndex<Annotation> annotationIndex = indexes.getAnnotationIndex( BaseToken.type );
for ( Annotation annotation : annotationIndex ) {
if ( !(annotation instanceof BaseToken) ) {
iv_logger.warn( getClass().getName() + " getLookupTokenIterator(..) Annotation is not a BaseToken" );
continue;
}
final boolean isNonLookup = annotation instanceof NewlineToken
|| annotation instanceof PunctuationToken
|| annotation instanceof ContractionToken
|| annotation instanceof SymbolToken;
if ( isNonLookup ) {
continue;
}
final BaseToken bta = (BaseToken) annotation;
final LookupToken lt = new LookupAnnotationToJCasAdapter( bta );
if ( bta instanceof WordToken ) {
final WordToken wta = (WordToken) bta;
final String canonicalForm = wta.getCanonicalForm();
if ( canonicalForm != null ) {
lt.addStringAttribute( CANONICAL_VARIANT_ATTR, canonicalForm );
}
}
ltList.add( lt );
}
return ltList.iterator();
}
/**
* {@inheritDoc}
*/
@Override
public Iterator<Annotation> getLookupWindowIterator( final JCas jcas ) throws AnnotatorInitializationException {
final JFSIndexRepository indexes = jcas.getJFSIndexRepository();
return indexes.getAnnotationIndex( Sentence.type ).iterator();
}
/**
* returns an empty map
* {@inheritDoc}
*/
@Override
public Map<String, List<LookupAnnotation>> getContextMap( final JCas jcas,
final int windowBegin,
final int windowEnd ) {
// not used for direct pass through algorithm, return empty map
return Collections.emptyMap();
}
/**
* {@inheritDoc}
*/
@Override
public List<LookupToken> getSortedLookupTokens( final JCas jcas,
final Annotation annotation ) throws AnnotatorInitializationException {
final List<LookupToken> ltList = new ArrayList<LookupToken>();
final List<BaseToken> inList = JCasUtil.selectCovered( jcas, BaseToken.class, annotation );
for ( BaseToken bta : inList ) {
final boolean isNonLookup = bta instanceof NewlineToken
|| bta instanceof PunctuationToken
|| bta instanceof ContractionToken
|| bta instanceof SymbolToken;
if ( isNonLookup ) {
continue;
}
final LookupToken lt = new LookupAnnotationToJCasAdapter( bta );
if ( bta instanceof WordToken ) {
WordToken wta = (WordToken) bta;
String canonicalForm = wta.getCanonicalForm();
if ( canonicalForm != null ) {
lt.addStringAttribute( CANONICAL_VARIANT_ATTR, canonicalForm );
}
}
ltList.add( lt );
}
return ltList;
}
}